action caching - Page 149

XSD: how to use 'unique' & 'key'/'keyref' with element values?

- by Koohoolinn

I trying to use and / with element values but I just can't get it to work. If I do it with attrubute values it works like a charm. Test.xml <test:config xmlns:test="http://www.example.org/Test" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.example.org/Test Test.xsd "> <test:location id="id1" path="/path2"> <test:roles> <test:role>role1</test:role> <test:role>role2</test:role> <test:role>role2</test:role>  </test:roles> <test:action name="action1"> <test:roles> <test:role>role1</test:role> <test:role>role1</test:role>  <test:role>role3</test:role>  </test:roles> </test:action> </test:location> </test:config> I want ensure that roles are only defined once and that the roles defined under the action element are only those defined at the upper level. Test.xsd <xs:element name="config"> <xs:complexType> <xs:sequence> <xs:element ref="test:location" maxOccurs="unbounded" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="location" type="test:LocationType"> <xs:key name="keyRole"> <xs:selector xpath="test:roles" /> <xs:field xpath="test:role" /> </xs:key> <xs:keyref name="keyrefRole" refer="test:keyRole"> <xs:selector xpath="test:action/test:roles" /> <xs:field xpath="test:role" /> </xs:keyref> </xs:element> <xs:complexType name="LocationType"> <xs:sequence> <xs:element ref="test:roles" minOccurs="0" /> <xs:element name="action" type="test:ActionType" minOccurs="0" maxOccurs="unbounded"/> </xs:sequence> <xs:attribute name="id" type="xs:string" use="required"/> <xs:attribute name="path" type="xs:string" use="required"/> </xs:complexType> <xs:element name="roles" type="test:RolesType"> <xs:unique name="uniqueRole"> <xs:selector xpath="." /> <xs:field xpath="test:role" /> </xs:unique> </xs:element> <xs:complexType name="RolesType"> <xs:sequence> <xs:element name="role" type="xs:string" maxOccurs="unbounded"/> </xs:sequence> </xs:complexType> <xs:complexType name="ActionType"> <xs:sequence> <xs:element ref="test:roles" /> </xs:sequence> <xs:attribute name="name" type="xs:string" use="required" /> </xs:complexType> The validation fails with these messages: Description Resource Path Location Type cvc-identity-constraint.3: Field "./test:role" of identity constraint "keyrefRole" matches more than one value within the scope of its selector; fields must match unique values. Test.xml /filebrowser-ejb/src/test/resources line 15 XML Problem cvc-identity-constraint.3: Field "./test:role" of identity constraint "keyrefRole" matches more than one value within the scope of its selector; fields must match unique values. Test.xml /filebrowser-ejb/src/test/resources line 16 XML Problem cvc-identity-constraint.3: Field "./test:role" of identity constraint "keyRole" matches more than one value within the scope of its selector; fields must match unique values. Test.xml /filebrowser-ejb/src/test/resources line 9 XML Problem cvc-identity-constraint.3: Field "./test:role" of identity constraint "keyRole" matches more than one value within the scope of its selector; fields must match unique values. Test.xml /filebrowser-ejb/src/test/resources line 10 XML Problem cvc-identity-constraint.3: Field "./test:role" of identity constraint "uniqueRole" matches more than one value within the scope of its selector; fields must match unique values. Test.xml /filebrowser-ejb/src/test/resources line 9 XML Problem cvc-identity-constraint.3: Field "./test:role" of identity constraint "uniqueRole" matches more than one value within the scope of its selector; fields must match unique values. Test.xml /filebrowser-ejb/src/test/resources line 10 XML Problem cvc-identity-constraint.3: Field "./test:role" of identity constraint "uniqueRole" matches more than one value within the scope of its selector; fields must match unique values. Test.xml /filebrowser-ejb/src/test/resources line 15 XML Problem cvc-identity-constraint.3: Field "./test:role" of identity constraint "uniqueRole" matches more than one value within the scope of its selector; fields must match unique values. Test.xml /filebrowser-ejb/src/test/resources line 16 XML Problem cvc-identity-constraint.4.1: Duplicate unique value [role1] declared for identity constraint "uniqueRole" of element "roles". Test.xml /filebrowser-ejb/src/test/resources line 9 XML Problem cvc-identity-constraint.4.1: Duplicate unique value [role1] declared for identity constraint "uniqueRole" of element "roles". Test.xml /filebrowser-ejb/src/test/resources line 15 XML Problem cvc-identity-constraint.4.2.2: Duplicate key value [role1] declared for identity constraint "keyRole" of element "location". Test.xml /filebrowser-ejb/src/test/resources line 9 XML Problem cvc-identity-constraint.4.3: Key 'keyrefRole' with value 'role3' not found for identity constraint of element 'location'. Test.xml /filebrowser-ejb/src/test/resources line 19 XML Problem If I comment out the lines that should fail, validation still fails now with these messages: Description Resource Path Location Type cvc-identity-constraint.3: Field "./test:role" of identity constraint "keyRole" matches more than one value within the scope of its selector; fields must match unique values. Test.xml /filebrowser-ejb/src/test/resources line 10 XML Problem cvc-identity-constraint.3: Field "./test:role" of identity constraint "uniqueRole" matches more than one value within the scope of its selector; fields must match unique values. Test.xml /filebrowser-ejb/src/test/resources line 10 XML Problem What am I doing wrong?

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Network Data Packet connectivity intent

- by Rakesh

I am writing an Android application which can enable and disable the Network Data packet connection. I am also using one broadcast receiver to check the Network Data packet connection. I have registered broadcast receiver and provided required permission in Manifest file. But when I run this application it changes the connection state and after that it crashes. But when I don't include this broadcast receiver it works fine. I am not able to see any kind of log which can provide some clue. Here is my code for broadcast receiver. <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.rakesh.simplewidget" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="10" />  <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" /> <uses-permission android:name="android.permission.MODIFY_PHONE_STATE" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" > <activity android:name=".SimpleWidgetExampleActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity>  <receiver android:name=".ConnectivityReceiver" > <intent-filter> <action android:name="android.net.conn.CONNECTIVITY_CHANGE" /> </intent-filter> </receiver> </application> </manifest> My Broadcast receiver class is as following. import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.util.Log; public class ConnectivityReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { NetworkInfo info = (NetworkInfo)intent.getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO); if(info.getType() == ConnectivityManager.TYPE_MOBILE){ if(info.isConnectedOrConnecting()){ Log.e("RK","Mobile data is connected"); }else{ Log.e("RK","Mobile data is disconnected"); } } } } my Main activity file. package com.rakesh.simplewidget; import java.lang.reflect.Field; import java.lang.reflect.Method; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.graphics.Color; import android.net.ConnectivityManager; import android.os.Bundle; import android.telephony.TelephonyManager; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.Toast; public class SimpleWidgetExampleActivity extends Activity { private Button btNetworkSetting; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); btNetworkSetting = (Button)findViewById(R.id.btNetworkSetting); if(checkConnectivityState(getApplicationContext())){ btNetworkSetting.setBackgroundColor(Color.GREEN); }else{ btNetworkSetting.setBackgroundColor(Color.GRAY); } } public void openNetworkSetting(View view){ Method dataConnSwitchmethod; Class telephonyManagerClass; Object ITelephonyStub; Class ITelephonyClass; Context context = view.getContext(); boolean enabled = !checkConnectivityState(context); final ConnectivityManager conman = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); try{ final Class conmanClass = Class.forName(conman.getClass().getName()); final Field iConnectivityManagerField = conmanClass.getDeclaredField("mService"); iConnectivityManagerField.setAccessible(true); final Object iConnectivityManager = iConnectivityManagerField.get(conman); final Class iConnectivityManagerClass = Class.forName(iConnectivityManager.getClass().getName()); final Method setMobileDataEnabledMethod = iConnectivityManagerClass.getDeclaredMethod("setMobileDataEnabled", Boolean.TYPE); setMobileDataEnabledMethod.setAccessible(true); setMobileDataEnabledMethod.invoke(iConnectivityManager, enabled); if(enabled){ Toast.makeText(view.getContext(), "Enabled Network Data", Toast.LENGTH_LONG).show(); view.setBackgroundColor(Color.GREEN); } else{ Toast.makeText(view.getContext(), "Disabled Network Data", Toast.LENGTH_LONG).show(); view.setBackgroundColor(Color.LTGRAY); } }catch(Exception e){ Log.e("Error", "some error"); Toast.makeText(view.getContext(), "It didn't work", Toast.LENGTH_LONG).show(); } } private boolean checkConnectivityState(Context context){ final TelephonyManager telephonyManager = (TelephonyManager) context .getSystemService(Context.TELEPHONY_SERVICE); ConnectivityManager af ; return telephonyManager.getDataState() == TelephonyManager.DATA_CONNECTED; } } Log file: java.lang.RuntimeException: Unable to instantiate receiver com.rakesh.simplewidget.ConnectivityReceiver: java.lang.ClassNotFoundException: com.rakesh.simplewidget.ConnectivityReceiver in loader dalvik.system.PathClassLoader[/data/app/com.rakesh.simplewidget-2.apk] E/AndroidRuntime(26094): at android.app.ActivityThread.handleReceiver(ActivityThread.java:1777) E/AndroidRuntime(26094): at android.app.ActivityThread.access$2400(ActivityThread.java:117) E/AndroidRuntime(26094): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:985) E/AndroidRuntime(26094): at android.os.Handler.dispatchMessage(Handler.java:99) E/AndroidRuntime(26094): at android.os.Looper.loop(Looper.java:130) E/AndroidRuntime(26094): at android.app.ActivityThread.main(ActivityThread.java:3691) E/AndroidRuntime(26094): at java.lang.reflect.Method.invokeNative(Native Method) E/AndroidRuntime(26094): at java.lang.reflect.Method.invoke(Method.java:507) E/AndroidRuntime(26094): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:907) E/AndroidRuntime(26094): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665) E/AndroidRuntime(26094): at dalvik.system.NativeStart.main(Native Method) It seems Android is not able to recognize file Broadcast Receiver class. Any idea why I am getting this error? PS: Some information about Android environment and platform. - Android API 10. - Running on Samsung Galaxy II which has android 2.3.6 Edit: my broadcast receiver file ConnectivityReceiver.java was present in default package and it was not being recognized by Android. Android was looking for this file in current package i.e com.rakesh.simplewidget; I just moved connectivityReciever.java file to com.rakesh.simplewidget package and problem was solved.

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need prefuse graph edges like arrows

- by merve

Hello, I did my homework and searched both google for a sample and a topic that is answered before on stackoverflow. But nothing has been found. My problem is ordinary edges who does not have a view like arrows. Here is what i do to hope there is forward arrows from target to destination: LabelRenderer nameLabel = new LabelRenderer("name"); nameLabel.setRoundedCorner(8, 8); DefaultRendererFactory rendererFactory = new DefaultRendererFactory(nameLabel); EdgeRenderer edgeRenderer; edgeRenderer = new EdgeRenderer(prefuse.Constants.EDGE_TYPE_LINE, prefuse.Constants.EDGE_ARROW_FORWARD); rendererFactory.setDefaultEdgeRenderer(edgeRenderer); vis.setRendererFactory(rendererFactory); Here is what i see about colour of edges, hoping these must not be transparent: int[] palette = new int[]{ColorLib.rgb(255, 180, 180), ColorLib.rgb(190, 190, 255)}; DataColorAction fill = new DataColorAction("socialnet.nodes", "gender", Constants.NOMINAL, VisualItem.FILLCOLOR, palette); ColorAction text = new ColorAction("socialnet.nodes", VisualItem.TEXTCOLOR, ColorLib.gray(0)); ColorAction edges = new ColorAction("socialnet.edges", VisualItem.STROKECOLOR, ColorLib.gray(200)); ColorAction arrow = new ColorAction("socialnet.edges", VisualItem.FILLCOLOR, ColorLib.gray(200)); ActionList colour = new ActionList(); colour.add(fill); colour.add(text); colour.add(edges); colour.add(arrow); vis.putAction("colour", colour); Thus, i wonder where am i wrong? Why my edges do not seem like arrows? Thanks for any idea. For more detail, i want to paste all of the code: /* * To change this template, choose Tools | Templates * and open the template in the editor. */ package prefusedeneme; import javax.swing.JFrame; import prefuse.data.*; import prefuse.data.io.*; import prefuse.Display; import prefuse.Visualization; import prefuse.render.*; import prefuse.util.*; import prefuse.action.assignment.*; import prefuse.Constants; import prefuse.visual.*; import prefuse.action.*; import prefuse.activity.*; import prefuse.action.layout.graph.*; import prefuse.controls.*; import prefuse.data.expression.Predicate; import prefuse.data.expression.parser.ExpressionParser; public class SocialNetworkVis { public static void main(String argv[]) { // 1. Load the data Graph graph = null; /* graph will contain the core data */ try { graph = new GraphMLReader().readGraph("socialnet.xml"); /* load the data from an XML file */ } catch (DataIOException e) { e.printStackTrace(); System.err.println("Error loading graph. Exiting..."); System.exit(1); } // 2. prepare the visualization Visualization vis = new Visualization(); /* vis is the main object that will run the visualization */ vis.add("socialnet", graph); /* add our data to the visualization */ // 3. setup the renderers and the render factory // labels for name LabelRenderer nameLabel = new LabelRenderer("name"); nameLabel.setRoundedCorner(8, 8); /* nameLabel decribes how to draw the data elements labeled as "name" */ // create the render factory DefaultRendererFactory rendererFactory = new DefaultRendererFactory(nameLabel); EdgeRenderer edgeRenderer; edgeRenderer = new EdgeRenderer(prefuse.Constants.EDGE_TYPE_LINE, prefuse.Constants.EDGE_ARROW_FORWARD); rendererFactory.setDefaultEdgeRenderer(edgeRenderer); vis.setRendererFactory(rendererFactory); // 4. process the actions // colour palette for nominal data type int[] palette = new int[]{ColorLib.rgb(255, 180, 180), ColorLib.rgb(190, 190, 255)}; /* ColorLib.rgb converts the colour values to integers */ // map data to colours in the palette DataColorAction fill = new DataColorAction("socialnet.nodes", "gender", Constants.NOMINAL, VisualItem.FILLCOLOR, palette); /* fill describes what colour to draw the graph based on a portion of the data */ // node text ColorAction text = new ColorAction("socialnet.nodes", VisualItem.TEXTCOLOR, ColorLib.gray(0)); /* text describes what colour to draw the text */ // edge ColorAction edges = new ColorAction("socialnet.edges", VisualItem.STROKECOLOR, ColorLib.gray(200)); ColorAction arrow = new ColorAction("socialnet.edges", VisualItem.FILLCOLOR, ColorLib.gray(200)); /* edge describes what colour to draw the edges */ // combine the colour assignments into an action list ActionList colour = new ActionList(); colour.add(fill); colour.add(text); colour.add(edges); colour.add(arrow); vis.putAction("colour", colour); /* add the colour actions to the visualization */ // create a separate action list for the layout ActionList layout = new ActionList(Activity.INFINITY); layout.add(new ForceDirectedLayout("socialnet")); /* use a force-directed graph layout with default parameters */ layout.add(new RepaintAction()); /* repaint after each movement of the graph nodes */ vis.putAction("layout", layout); /* add the laout actions to the visualization */ // 5. add interactive controls for visualization Display display = new Display(vis); display.setSize(700, 700); display.pan(350, 350); // pan to the middle display.addControlListener(new DragControl()); /* allow items to be dragged around */ display.addControlListener(new PanControl()); /* allow the display to be panned (moved left/right, up/down) (left-drag)*/ display.addControlListener(new ZoomControl()); /* allow the display to be zoomed (right-drag) */ // 6. launch the visualizer in a JFrame JFrame frame = new JFrame("prefuse tutorial: socialnet"); /* frame is the main window */ frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(display); /* add the display (which holds the visualization) to the window */ frame.pack(); frame.setVisible(true); /* start the visualization working */ vis.run("colour"); vis.run("layout"); } }

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UITableViewCell selected subview ghosts

- by Jonathan Cohen

Hi all, I'm learning about the iPhone SDK and have an interesting exception with UITableViewCell subview management when a finger is pressed on some rows. The table is used to assign sounds to hand gestures -- swiping the phone in one of 3 directions triggers the sound to play. Selecting a row displays an action sheet with 4 options for sound assignment: left, down, right, and cancel. Sounds can be mapped to one, two, or three directions so any cell can have one of seven states: left, down, right, left and down, left and right, down and right, or left down and right. If a row is mapped to any of these seven states, a corresponding arrow or arrows are displayed within the bounds of the row as a subview. Arrows come and go as they should in a given screen and when scrolling around. However, after scrolling to a new batch of rows, only when I press my finger down on some (but not all) rows, does an arrow magically appear in the selected state background. When I lift my finger off the row, and the action sheet appears, the arrow disappears. After pressing any of the four buttons, I can't replicate this anymore. But it's really disorienting and confusing to see this arrow flash on screen because the selected row isn't assigned to anything. What haven't I thought to look into here? All my table code is pasted below and this is a screencast of the problem: http://www.screencast.com/users/JonathanGCohen/folders/Jing/media/d483fe31-05b5-4c24-ab4d-70de4ff3a0bf Am I managing my subviews wrong or is there a selected state property I'm missing? Something else? Should I have included any more information in this post to make things clearer? Thank you!! #pragma mark - #pragma mark Table - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return ([categories count] > 0) ? [categories count] : 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { if ([categories count] == 0) return 0; NSMutableString *key = [categories objectAtIndex:section]; NSMutableArray *nameSection = [categoriesSounds objectForKey:key]; return [nameSection count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSUInteger section = [indexPath section]; NSUInteger row = [indexPath row]; NSString *key = [categories objectAtIndex:section]; NSArray *nameSection = [categoriesSounds objectForKey:key]; static NSString *SectionsTableIdentifier = @"SectionsTableIdentifier"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier: SectionsTableIdentifier]; NSArray *sound = [categoriesSounds objectForKey:key]; NSString *soundName = [[sound objectAtIndex: row] objectAtIndex: 0]; NSString *soundOfType = [[sound objectAtIndex: row] objectAtIndex: 1]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:SectionsTableIdentifier] autorelease]; } cell.textLabel.text = [[nameSection objectAtIndex:row] objectAtIndex: 0]; NSUInteger soundSection = [[[sound objectAtIndex: row] objectAtIndex: 2] integerValue]; NSUInteger soundRow = [[[sound objectAtIndex: row] objectAtIndex: 3] integerValue]; NSUInteger leftRow = [leftOldIndexPath row]; NSUInteger leftSection = [leftOldIndexPath section]; if (soundRow == leftRow && soundSection == leftSection && leftOldIndexPath !=nil){ [selectedSoundLeftAndDown removeFromSuperview]; [selectedSoundLeftAndRight removeFromSuperview]; [cell.contentView addSubview: selectedSoundLeft]; selectedSoundLeft.frame = CGRectMake(200,8,30,30); } else { [cell.contentView sendSubviewToBack: selectedSoundLeft]; } NSUInteger downRow = [downOldIndexPath row]; NSUInteger downSection = [downOldIndexPath section]; if (soundRow == downRow && soundSection == downSection && downOldIndexPath !=nil){ [selectedSoundLeftAndDown removeFromSuperview]; [selectedSoundDownAndRight removeFromSuperview]; [cell.contentView addSubview: selectedSoundDown]; selectedSoundDown.frame = CGRectMake(200,8,30,30); } else { [cell.contentView sendSubviewToBack: selectedSoundDown]; } NSUInteger rightRow = [rightOldIndexPath row]; NSUInteger rightSection = [rightOldIndexPath section]; if (soundRow == rightRow && soundSection == rightSection && rightOldIndexPath !=nil){ [selectedSoundDownAndRight removeFromSuperview]; [selectedSoundLeftAndRight removeFromSuperview]; [cell.contentView addSubview: selectedSoundRight]; selectedSoundRight.frame = CGRectMake(200,8,30,30); } else { [cell.contentView sendSubviewToBack: selectedSoundRight]; } // combos if (soundRow == leftRow && soundRow == downRow && soundSection == leftSection && soundSection == downSection){ [selectedSoundLeft removeFromSuperview]; [selectedSoundDown removeFromSuperview]; [selectedSoundLeftAndDownAndRight removeFromSuperview]; [cell.contentView addSubview: selectedSoundLeftAndDown]; selectedSoundLeftAndDown.frame = CGRectMake(200,8,30,30); } else { [cell.contentView sendSubviewToBack: selectedSoundLeftAndDown]; } if (soundRow == leftRow && soundRow == rightRow && soundSection == leftSection && soundSection == rightSection){ [selectedSoundLeft removeFromSuperview]; [selectedSoundRight removeFromSuperview]; [selectedSoundLeftAndDownAndRight removeFromSuperview]; [cell.contentView addSubview: selectedSoundLeftAndRight]; selectedSoundLeftAndRight.frame = CGRectMake(200,8,30,30); } else { [cell.contentView sendSubviewToBack: selectedSoundLeftAndRight]; } if (soundRow == downRow && soundRow == rightRow && soundSection == downSection && soundSection == rightSection){ [selectedSoundDown removeFromSuperview]; [selectedSoundRight removeFromSuperview]; [selectedSoundLeftAndDownAndRight removeFromSuperview]; [cell.contentView addSubview: selectedSoundDownAndRight]; selectedSoundDownAndRight.frame = CGRectMake(200,8,30,30); } else { [cell.contentView sendSubviewToBack: selectedSoundDownAndRight]; } if (soundRow == leftRow && soundRow == downRow && soundRow == rightRow && soundSection == leftSection && soundSection == downSection && soundSection == rightSection){ [selectedSoundLeftAndDown removeFromSuperview]; [selectedSoundLeftAndRight removeFromSuperview]; [selectedSoundDownAndRight removeFromSuperview]; [selectedSoundLeft removeFromSuperview]; [selectedSoundDown removeFromSuperview]; [selectedSoundRight removeFromSuperview]; [cell.contentView addSubview: selectedSoundLeftAndDownAndRight]; selectedSoundLeftAndDownAndRight.frame = CGRectMake(200,8,30,30); } else { [cell.contentView sendSubviewToBack: selectedSoundLeftAndDownAndRight]; } [indexPath retain]; return cell; } - (NSMutableString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section { if ([categories count] == 0) return nil; NSMutableString *key = [categories objectAtIndex:section]; if (key == UITableViewIndexSearch) return nil; return key; } - (NSMutableArray *)sectionIndexTitlesForTableView:(UITableView *)tableView { if (isSearching) return nil; return categories; } - (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath { [table reloadData]; [selectedSoundLeft removeFromSuperview]; [selectedSoundDown removeFromSuperview]; [selectedSoundRight removeFromSuperview]; [selectedSoundLeftAndDown removeFromSuperview]; [selectedSoundLeftAndRight removeFromSuperview]; [selectedSoundDownAndRight removeFromSuperview]; [selectedSoundLeftAndDownAndRight removeFromSuperview]; [search resignFirstResponder]; if (isSearching == YES && [search.text length] != 0 ){ searched = YES; } search.text = @""; isSearching = NO; [tableView reloadData]; [indexPath retain]; [indexPath retain]; return indexPath; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { [table reloadData]; selectedIndexPath = indexPath; [table reloadData]; NSInteger section = [indexPath section]; NSInteger row = [indexPath row]; NSString *key = [categories objectAtIndex:section]; NSArray *sound = [categoriesSounds objectForKey:key]; NSString *soundName = [[sound objectAtIndex: row] objectAtIndex: 0]; [indexPath retain]; [indexPath retain]; NSMutableString *title = [NSMutableString stringWithString: @"Assign Gesture for "]; NSMutableString *soundFeedback = [NSMutableString stringWithString: (@"%@", soundName)]; [title appendString: soundFeedback]; UIActionSheet *action = [[UIActionSheet alloc] initWithTitle:(@"%@", title) delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle: nil otherButtonTitles:@"Left",@"Down",@"Right",nil]; action.actionSheetStyle = UIActionSheetStyleDefault; [action showInView:self.view]; [action release]; } - (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{ NSInteger section = [selectedIndexPath section]; NSInteger row = [selectedIndexPath row]; NSString *key = [categories objectAtIndex:section]; NSArray *sound = [categoriesSounds objectForKey:key]; NSString *soundName = [[sound objectAtIndex: row] objectAtIndex: 0]; NSString *soundOfType = [[sound objectAtIndex: row] objectAtIndex: 1]; NSUInteger soundSection = [[[sound objectAtIndex: row] objectAtIndex: 2] integerValue]; NSUInteger soundRow = [[[sound objectAtIndex: row] objectAtIndex: 3] integerValue]; NSLog(@"sound row is %i", soundRow); NSLog(@"sound section is row is %i", soundSection); typedef enum { kLeftButton = 0, kDownButton, kRightButton, kCancelButton } gesture; switch (buttonIndex) { //Left case kLeftButton: showLeft.text = soundName; left = [[NSBundle mainBundle] pathForResource:(@"%@", soundName) ofType:(@"%@", soundOfType)]; AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:left], &soundNegZ); AudioServicesPlaySystemSound (soundNegZ); [table deselectRowAtIndexPath:selectedIndexPath animated:YES]; leftIndexSection = [NSNumber numberWithInteger:section]; leftIndexRow = [NSNumber numberWithInteger:row]; NSInteger leftSection = [leftIndexSection integerValue]; NSInteger leftRow = [leftIndexRow integerValue]; NSString *leftKey = [categories objectAtIndex: leftSection]; NSArray *leftSound = [categoriesSounds objectForKey:leftKey]; NSInteger leftSoundSection = [[[leftSound objectAtIndex: leftRow] objectAtIndex: 2] integerValue]; NSInteger leftSoundRow = [[[leftSound objectAtIndex: leftRow] objectAtIndex: 3] integerValue]; leftOldIndexPath = [NSIndexPath indexPathForRow:leftSoundRow inSection:leftSoundSection]; break; //Down case kDownButton: showDown.text = soundName; down = [[NSBundle mainBundle] pathForResource:(@"%@", soundName) ofType:(@"%@", soundOfType)]; AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:down], &soundNegX); AudioServicesPlaySystemSound (soundNegX); [table deselectRowAtIndexPath:selectedIndexPath animated:YES]; downIndexSection = [NSNumber numberWithInteger:section]; downIndexRow = [NSNumber numberWithInteger:row]; NSInteger downSection = [downIndexSection integerValue]; NSInteger downRow = [downIndexRow integerValue]; NSString *downKey = [categories objectAtIndex: downSection]; NSArray *downSound = [categoriesSounds objectForKey:downKey]; NSInteger downSoundSection = [[[downSound objectAtIndex: downRow] objectAtIndex: 2] integerValue]; NSInteger downSoundRow = [[[downSound objectAtIndex: downRow] objectAtIndex: 3] integerValue]; downOldIndexPath = [NSIndexPath indexPathForRow:downSoundRow inSection:downSoundSection]; break; //Right case kRightButton: showRight.text = soundName; right = [[NSBundle mainBundle] pathForResource:(@"%@", soundName) ofType:(@"%@", soundOfType)]; AudioServicesCreateSystemSoundID((CFURLRef)[NSURL fileURLWithPath:right], &soundPosX); AudioServicesPlaySystemSound (soundPosX); [table deselectRowAtIndexPath:selectedIndexPath animated:YES]; rightIndexSection = [NSNumber numberWithInteger:section]; rightIndexRow = [NSNumber numberWithInteger:row]; NSInteger rightSection = [rightIndexSection integerValue]; NSInteger rightRow = [rightIndexRow integerValue]; NSString *rightKey = [categories objectAtIndex: rightSection]; NSArray *rightSound = [categoriesSounds objectForKey:rightKey]; NSInteger rightSoundSection = [[[rightSound objectAtIndex: rightRow] objectAtIndex: 2] integerValue]; NSInteger rightSoundRow = [[[rightSound objectAtIndex: rightRow] objectAtIndex: 3] integerValue]; rightOldIndexPath = [NSIndexPath indexPathForRow:rightSoundRow inSection:rightSoundSection]; break; case kCancelButton: [table deselectRowAtIndexPath:selectedIndexPath animated:YES]; break; default: break; } UITableViewCell *viewCell = [table cellForRowAtIndexPath: selectedIndexPath]; NSArray *subviews = viewCell.subviews; for (UIView *cellView in subviews){ cellView.alpha = 1; } [table reloadData]; } - (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSMutableString *)title atIndex:(NSInteger)index { NSMutableString *category = [categories objectAtIndex:index]; if (category == UITableViewIndexSearch) { [tableView setContentOffset:CGPointZero animated:NO]; return NSNotFound; } else return index; }

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Error while validating HTML "document type does not allow element "li" here; missing one of "ul", "o

- by brumila

Hey! So I'm trying to code something on wordpress for the first time but the validator doesn't seem to like me. Look at the error I got while validating: Line 87, Column 33: document type does not allow element "li" here; missing one of "ul", "ol", "menu", "dir" start-tag I've searched everywhere, I'm not aware of any missing or misplaced li or ul tags can someone help me out on this one? <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head profile="http://gmpg.org/xfn/11"> <title> Blog</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <meta name="generator" content="WordPress 2.9.2" />  <link rel="stylesheet" href="http://localhost/wordpress/wp-content/themes/cmc-milagro/style.css" type="text/css" media="screen" /> <link rel="alternate" type="application/rss+xml" title="RSS 2.0" href="http://localhost/wordpress/?feed=rss2" /> <link rel="alternate" type="text/xml" title="RSS .92" href="http://localhost/wordpress/?feed=rss" /> <link rel="alternate" type="application/atom+xml" title="Atom 0.3" href="http://localhost/wordpress/?feed=atom" /> <link rel="pingback" href="http://localhost/wordpress/xmlrpc.php" /> <link rel='archives' title='March 2010' href='http://localhost/wordpress/?m=201003' /> <link rel="EditURI" type="application/rsd+xml" title="RSD" href="http://localhost/wordpress/xmlrpc.php?rsd" /> <link rel="wlwmanifest" type="application/wlwmanifest+xml" href="http://localhost/wordpress/wp-includes/wlwmanifest.xml" /> <link rel='index' title='Blog' href='http://localhost/wordpress' /> <meta name="generator" content="WordPress 2.9.2" /> </head> <body> <div> <h1><a href="http://localhost/wordpress"> Blog</a> </h1> Just another WordPress weblog</div> <div id="container"> <h2><a href="http://localhost/wordpress/?p=8"> Teste Post 3 </a></h2> <div class="post" id="post-8"> <div class="entry"> <p>Aliquam erat volutpat. 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Vestibulum rhoncus purus in mauris fermentum ut aliquet augue semper. Duis orci metus, cursus ac tempor eget, faucibus vel elit. Sed rutrum mollis posuere. Maecenas luctus commodo augue vel fringilla. Nunc enim lacus, varius nec tempor sed, congue vel elit. Suspendisse urna ligula, pharetra ac malesuada quis, scelerisque eget justo.</p> <p class="postmetadata"> Filed under: <a href="http://localhost/wordpress/?cat=1" title="View all posts in Uncategorized" rel="category">Uncategorized</a> by admin <br /> <a href="http://localhost/wordpress/?p=5#respond" title="Comment on Teste Post 2">No Comments »</a> | <a class="post-edit-link" href="http://localhost/wordpress/wp-admin/post.php?action=edit&post=5" title="Edit post">Edit</a> </p> </div> </div> <h2><a href="http://localhost/wordpress/?p=3"> Teste Post 1 </a></h2> <div class="post" id="post-3"> <div class="entry"> <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam ut mattis elit. 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Sensible Way to Pass Web Data in XML to a SQL Server Database

- by Emtucifor

After exploring several different ways to pass web data to a database for update purposes, I'm wondering if XML might be a good strategy. The database is currently SQL 2000. In a few months it will move to SQL 2005 and I will be able to change things if needed, but I need a SQL 2000 solution now. First of all, the database in question uses the EAV model. I know that this kind of database is generally highly frowned on, so for the purposes of this question, please just accept that this is not going to change. The current update method has the web server inserting values (that have all been converted first to their correct underlying types, then to sql_variant) to a temp table. A stored procedure is then run which expects the temp table to exist and it takes care of updating, inserting, or deleting things as needed. So far, only a single element has needed to be updated at a time. But now, there is a requirement to be able to edit multiple elements at once, and also to support hierarchical elements, each of which can have its own list of attributes. Here's some example XML I hand-typed to demonstrate what I'm thinking of. Note that in this database the Entity is Element and an ID of 0 signifies "create" aka an insert of a new item. <Elements> <Element ID="1234"> <Attr ID="221">Value</Attr> <Attr ID="225">287</Attr> <Attr ID="234"> <Element ID="99825"> <Attr ID="7">Value1</Attr> <Attr ID="8">Value2</Attr> <Attr ID="9" Action="delete" /> </Element> <Element ID="99826" Action="delete" /> <Element ID="0" Type="24"> <Attr ID="7">Value4</Attr> <Attr ID="8">Value5</Attr> <Attr ID="9">Value6</Attr> </Element> <Element ID="0" Type="24"> <Attr ID="7">Value7</Attr> <Attr ID="8">Value8</Attr> <Attr ID="9">Value9</Attr> </Element> </Attr> <Rel ID="3827" Action="delete" /> <Rel ID="2284" Role="parent"> <Element ID="3827" /> <Element ID="3829" /> <Attr ID="665">1</Attr> </Rel> <Rel ID="0" Type="23" Role="child"> <Element ID="3830" /> <Attr ID="67" </Rel> </Element> <Element ID="0" Type="87"> <Attr ID="221">Value</Attr> <Attr ID="225">569</Attr> <Attr ID="234"> <Element ID="0" Type="24"> <Attr ID="7">Value10</Attr> <Attr ID="8">Value11</Attr> <Attr ID="9">Value12</Attr> </Element> </Attr> </Element> <Element ID="1235" Action="delete" /> </Elements> Some Attributes are straight value types, such as AttrID 221. But AttrID 234 is a special "multi-value" type that can have a list of elements underneath it, and each one can have one or more values. Types only need to be presented when a new item is created, since the ElementID fully implies the type if it already exists. I'll probably support only passing in changed items (as detected by javascript). And there may be an Action="Delete" on Attr elements as well, since NULLs are treated as "unselected"--sometimes it's very important to know if a Yes/No question has intentionally been answered No or if no one's bothered to say Yes yet. There is also a different kind of data, a Relationship. At this time, those are updated through individual AJAX calls as things are edited in the UI, but I'd like to include those so that changes to relationships can be canceled (right now, once you change it, it's done). So those are really elements, too, but they are called Rel instead of Element. Relationships are implemented as ElementID1 and ElementID2, so the RelID 2284 in the XML above is in the database as: ElementID 2284 ElementID1 1234 ElementID2 3827 Having multiple children in one relationship isn't currently supported, but it would be nice later. Does this strategy and the example XML make sense? Is there a more sensible way? I'm just looking for some broad critique to help save me from going down a bad path. Any aspect that you'd like to comment on would be helpful. The web language happens to be Classic ASP, but that could change to ASP.Net at some point. A persistence engine like Linq or nHibernate is probably not acceptable right now--I just want to get this already working application enhanced without a huge amount of development time. I'll choose the answer that shows experience and has a balance of good warnings about what not to do, confirmations of what I'm planning to do, and recommendations about something else to do. I'll make it as objective as possible. P.S. I'd like to handle unicode characters as well as very long strings (10k +). UPDATE I have had this working for some time and I used the ADO Recordset Save-To-Stream trick to make creating the XML really easy. The result seems to be fairly fast, though if speed ever becomes a problem I may revisit this. In the meantime, my code works to handle any number of elements and attributes on the page at once, including updating, deleting, and creating new items all in one go. I settled on a scheme like so for all my elements: Existing data elements Example: input name e12345_a678 (element 12345, attribute 678), the input value is the value of the attribute. New elements Javascript copies a hidden template of the set of HTML elements needed for the type into the correct location on the page, increments a counter to get a new ID for this item, and prepends the number to the names of the form items. var newid = 0; function metadataAdd(reference, nameid, value) { var t = document.createElement('input'); t.setAttribute('name', nameid); t.setAttribute('id', nameid); t.setAttribute('type', 'hidden'); t.setAttribute('value', value); reference.appendChild(t); } function multiAdd(target, parentelementid, attrid, elementtypeid) { var proto = document.getElementById('a' + attrid + '_proto'); var instance = document.createElement('p'); target.parentNode.parentNode.insertBefore(instance, target.parentNode); var thisid = ++newid; instance.innerHTML = proto.innerHTML.replace(/{prefix}/g, 'n' + thisid + '_'); instance.id = 'n' + thisid; instance.className += ' new'; metadataAdd(instance, 'n' + thisid + '_p', parentelementid); metadataAdd(instance, 'n' + thisid + '_c', attrid); metadataAdd(instance, 'n' + thisid + '_t', elementtypeid); return false; } Example: Template input name _a678 becomes n1_a678 (a new element, the first one on the page, attribute 678). all attributes of this new element are tagged with the same prefix of n1. The next new item will be n2, and so on. Some hidden form inputs are created: n1_t, value is the elementtype of the element to be created n1_p, value is the parent id of the element (if it is a relationship) n1_c, value is the child id of the element (if it is a relationship) Deleting elements A hidden input is created in the form e12345_t with value set to 0. The existing controls displaying that attribute's values are disabled so they are not included in the form post. So "set type to 0" is treated as delete. With this scheme, every item on the page has a unique name and can be distinguished properly, and every action can be represented properly. When the form is posted, here's a sample of building one of the two recordsets used (classic ASP code): Set Data = Server.CreateObject("ADODB.Recordset") Data.Fields.Append "ElementID", adInteger, 4, adFldKeyColumn Data.Fields.Append "AttrID", adInteger, 4, adFldKeyColumn Data.Fields.Append "Value", adLongVarWChar, 2147483647, adFldIsNullable Or adFldMayBeNull Data.CursorLocation = adUseClient Data.CursorType = adOpenDynamic Data.Open This is the recordset for values, the other is for the elements themselves. I step through the posted form and for the element recordset use a Scripting.Dictionary populated with instances of a custom Class that has the properties I need, so that I can add the values piecemeal, since they don't always come in order. New elements are added as negative to distinguish them from regular elements (rather than requiring a separate column to indicate if it is new or addresses an existing element). I use regular expression to tear apart the form keys: "^(e|n)([0-9]{1,10})_(a|p|t|c)([0-9]{0,10})$" Then, adding an attribute looks like this. Data.AddNew ElementID.Value = DataID AttrID.Value = Integerize(Matches(0).SubMatches(3)) AttrValue.Value = Request.Form(Key) Data.Update ElementID, AttrID, and AttrValue are references to the fields of the recordset. This method is hugely faster than using Data.Fields("ElementID").Value each time. I loop through the Dictionary of element updates and ignore any that don't have all the proper information, adding the good ones to the recordset. Then I call my data-updating stored procedure like so: Set Cmd = Server.CreateObject("ADODB.Command") With Cmd Set .ActiveConnection = MyDBConn .CommandType = adCmdStoredProc .CommandText = "DataPost" .Prepared = False .Parameters.Append .CreateParameter("@ElementMetadata", adLongVarWChar, adParamInput, 2147483647, XMLFromRecordset(Element)) .Parameters.Append .CreateParameter("@ElementData", adLongVarWChar, adParamInput, 2147483647, XMLFromRecordset(Data)) End With Result.Open Cmd ' previously created recordset object with options set Here's the function that does the xml conversion: Private Function XMLFromRecordset(Recordset) Dim Stream Set Stream = Server.CreateObject("ADODB.Stream") Stream.Open Recordset.Save Stream, adPersistXML Stream.Position = 0 XMLFromRecordset = Stream.ReadText End Function Just in case the web page needs to know, the SP returns a recordset of any new elements, showing their page value and their created value (so I can see that n1 is now e12346 for example). Here are some key snippets from the stored procedure. Note this is SQL 2000 for now, though I'll be able to switch to 2005 soon: CREATE PROCEDURE [dbo].[DataPost] @ElementMetaData ntext, @ElementData ntext AS DECLARE @hdoc int --- snip --- EXEC sp_xml_preparedocument @hdoc OUTPUT, @ElementMetaData, '<xml xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:rs="urn:schemas-microsoft-com:rowset" xmlns:z="#RowsetSchema" />' INSERT #ElementMetadata (ElementID, ElementTypeID, ElementID1, ElementID2) SELECT * FROM OPENXML(@hdoc, '/xml/rs:data/rs:insert/z:row', 0) WITH ( ElementID int, ElementTypeID int, ElementID1 int, ElementID2 int ) ORDER BY ElementID -- orders negative items (new elements) first so they begin counting at 1 for later ID calculation EXEC sp_xml_removedocument @hdoc --- snip --- UPDATE E SET E.ElementTypeID = M.ElementTypeID FROM Element E INNER JOIN #ElementMetadata M ON E.ElementID = M.ElementID WHERE E.ElementID >= 1 AND M.ElementTypeID >= 1 The following query does the correlation of the negative new element ids to the newly inserted ones: UPDATE #ElementMetadata -- Correlate the new ElementIDs with the input rows SET NewElementID = Scope_Identity() - @@RowCount + DataID WHERE ElementID < 0 Other set-based queries do all the other work of validating that the attributes are allowed, are the correct data type, and inserting, updating, and deleting elements and attributes. I hope this brief run-down is useful to others some day! Converting ADO Recordsets to an XML stream was a huge winner for me as it saved all sorts of time and had a namespace and schema already defined that made the results come out correctly. Using a flatter XML format with 2 inputs was also much easier than sticking to some ideal about having everything in a single XML stream.

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Sensible Way to Pass Web Data to Sql Server Database

- by Emtucifor

After exploring several different ways to pass web data to a database for update purposes, I'm wondering if XML might be a good strategy. The database is currently SQL 2000. In a few months it will move to SQL 2005 and I will be able to change things if needed, but I need a SQL 2000 solution now. First of all, the database in question uses the EAV model. I know that this kind of database is generally highly frowned on, so for the purposes of this question, please just accept that this is not going to change. The current update method has the web server inserting values (that have all been converted first to their correct underlying types, then to sql_variant) to a temp table. A stored procedure is then run which expects the temp table to exist and it takes care of updating, inserting, or deleting things as needed. So far, only a single element has needed to be updated at a time. But now, there is a requirement to be able to edit multiple elements at once, and also to support hierarchical elements, each of which can have its own list of attributes. Here's some example XML I hand-typed to demonstrate what I'm thinking of. Note that in this database the Entity is Element and an ID of 0 signifies "create" aka an insert of a new item. <Elements> <Element ID="1234"> <Attr ID="221">Value</Attr> <Attr ID="225">287</Attr> <Attr ID="234"> <Element ID="99825"> <Attr ID="7">Value1</Attr> <Attr ID="8">Value2</Attr> <Attr ID="9" Action="delete" /> </Element> <Element ID="99826" Action="delete" /> <Element ID="0" Type="24"> <Attr ID="7">Value4</Attr> <Attr ID="8">Value5</Attr> <Attr ID="9">Value6</Attr> </Element> <Element ID="0" Type="24"> <Attr ID="7">Value7</Attr> <Attr ID="8">Value8</Attr> <Attr ID="9">Value9</Attr> </Element> </Attr> <Rel ID="3827" Action="delete" /> <Rel ID="2284" Role="parent"> <Element ID="3827" /> <Element ID="3829" /> <Attr ID="665">1</Attr> </Rel> <Rel ID="0" Type="23" Role="child"> <Element ID="3830" /> <Attr ID="67" </Rel> </Element> <Element ID="0" Type="87"> <Attr ID="221">Value</Attr> <Attr ID="225">569</Attr> <Attr ID="234"> <Element ID="0" Type="24"> <Attr ID="7">Value10</Attr> <Attr ID="8">Value11</Attr> <Attr ID="9">Value12</Attr> </Element> </Attr> </Element> <Element ID="1235" Action="delete" /> </Elements> Some Attributes are straight value types, such as AttrID 221. But AttrID 234 is a special "multi-value" type that can have a list of elements underneath it, and each one can have one or more values. Types only need to be presented when a new item is created, since the ElementID fully implies the type if it already exists. I'll probably support only passing in changed items (as detected by javascript). And there may be an Action="Delete" on Attr elements as well, since NULLs are treated as "unselected"--sometimes it's very important to know if a Yes/No question has intentionally been answered No or if no one's bothered to say Yes yet. There is also a different kind of data, a Relationship. At this time, those are updated through individual AJAX calls as things are edited in the UI, but I'd like to include those so that changes to relationships can be canceled (right now, once you change it, it's done). So those are really elements, too, but they are called Rel instead of Element. Relationships are implemented as ElementID1 and ElementID2, so the RelID 2284 in the XML above is in the database as: ElementID 2284 ElementID1 1234 ElementID2 3827 Having multiple children in one relationship isn't currently supported, but it would be nice later. Does this strategy and the example XML make sense? Is there a more sensible way? I'm just looking for some broad critique to help save me from going down a bad path. Any aspect that you'd like to comment on would be helpful. The web language happens to be Classic ASP, but that could change to ASP.Net at some point. A persistence engine like Linq or nHibernate is probably not acceptable right now--I just want to get this already working application enhanced without a huge amount of development time. I'll choose the answer that shows experience and has a balance of good warnings about what not to do, confirmations of what I'm planning to do, and recommendations about something else to do. I'll make it as objective as possible. P.S. I'd like to handle unicode characters as well as very long strings (10k +). UPDATE I have had this working for some time and I used the ADO Recordset Save-To-Stream trick to make creating the XML really easy. The result seems to be fairly fast, though if speed ever becomes a problem I may revisit this. In the meantime, my code works to handle any number of elements and attributes on the page at once, including updating, deleting, and creating new items all in one go. I settled on a scheme like so for all my elements: Existing data elements Example: input name e12345_a678 (element 12345, attribute 678), the input value is the value of the attribute. New elements Javascript copies a hidden template of the set of HTML elements needed for the type into the correct location on the page, increments a counter to get a new ID for this item, and prepends the number to the names of the form items. var newid = 0; function metadataAdd(reference, nameid, value) { var t = document.createElement('input'); t.setAttribute('name', nameid); t.setAttribute('id', nameid); t.setAttribute('type', 'hidden'); t.setAttribute('value', value); reference.appendChild(t); } function multiAdd(target, parentelementid, attrid, elementtypeid) { var proto = document.getElementById('a' + attrid + '_proto'); var instance = document.createElement('p'); target.parentNode.parentNode.insertBefore(instance, target.parentNode); var thisid = ++newid; instance.innerHTML = proto.innerHTML.replace(/{prefix}/g, 'n' + thisid + '_'); instance.id = 'n' + thisid; instance.className += ' new'; metadataAdd(instance, 'n' + thisid + '_p', parentelementid); metadataAdd(instance, 'n' + thisid + '_c', attrid); metadataAdd(instance, 'n' + thisid + '_t', elementtypeid); return false; } Example: Template input name _a678 becomes n1_a678 (a new element, the first one on the page, attribute 678). all attributes of this new element are tagged with the same prefix of n1. The next new item will be n2, and so on. Some hidden form inputs are created: n1_t, value is the elementtype of the element to be created n1_p, value is the parent id of the element (if it is a relationship) n1_c, value is the child id of the element (if it is a relationship) Deleting elements A hidden input is created in the form e12345_t with value set to 0. The existing controls displaying that attribute's values are disabled so they are not included in the form post. So "set type to 0" is treated as delete. With this scheme, every item on the page has a unique name and can be distinguished properly, and every action can be represented properly. When the form is posted, here's a sample of building one of the two recordsets used (classic ASP code): Set Data = Server.CreateObject("ADODB.Recordset") Data.Fields.Append "ElementID", adInteger, 4, adFldKeyColumn Data.Fields.Append "AttrID", adInteger, 4, adFldKeyColumn Data.Fields.Append "Value", adLongVarWChar, 2147483647, adFldIsNullable Or adFldMayBeNull Data.CursorLocation = adUseClient Data.CursorType = adOpenDynamic Data.Open This is the recordset for values, the other is for the elements themselves. I step through the posted form and for the element recordset use a Scripting.Dictionary populated with instances of a custom Class that has the properties I need, so that I can add the values piecemeal, since they don't always come in order. New elements are added as negative to distinguish them from regular elements (rather than requiring a separate column to indicate if it is new or addresses an existing element). I use regular expression to tear apart the form keys: "^(e|n)([0-9]{1,10})_(a|p|t|c)([0-9]{0,10})$" Then, adding an attribute looks like this. Data.AddNew ElementID.Value = DataID AttrID.Value = Integerize(Matches(0).SubMatches(3)) AttrValue.Value = Request.Form(Key) Data.Update ElementID, AttrID, and AttrValue are references to the fields of the recordset. This method is hugely faster than using Data.Fields("ElementID").Value each time. I loop through the Dictionary of element updates and ignore any that don't have all the proper information, adding the good ones to the recordset. Then I call my data-updating stored procedure like so: Set Cmd = Server.CreateObject("ADODB.Command") With Cmd Set .ActiveConnection = MyDBConn .CommandType = adCmdStoredProc .CommandText = "DataPost" .Prepared = False .Parameters.Append .CreateParameter("@ElementMetadata", adLongVarWChar, adParamInput, 2147483647, XMLFromRecordset(Element)) .Parameters.Append .CreateParameter("@ElementData", adLongVarWChar, adParamInput, 2147483647, XMLFromRecordset(Data)) End With Result.Open Cmd ' previously created recordset object with options set Here's the function that does the xml conversion: Private Function XMLFromRecordset(Recordset) Dim Stream Set Stream = Server.CreateObject("ADODB.Stream") Stream.Open Recordset.Save Stream, adPersistXML Stream.Position = 0 XMLFromRecordset = Stream.ReadText End Function Just in case the web page needs to know, the SP returns a recordset of any new elements, showing their page value and their created value (so I can see that n1 is now e12346 for example). Here are some key snippets from the stored procedure. Note this is SQL 2000 for now, though I'll be able to switch to 2005 soon: CREATE PROCEDURE [dbo].[DataPost] @ElementMetaData ntext, @ElementData ntext AS DECLARE @hdoc int --- snip --- EXEC sp_xml_preparedocument @hdoc OUTPUT, @ElementMetaData, '<xml xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:rs="urn:schemas-microsoft-com:rowset" xmlns:z="#RowsetSchema" />' INSERT #ElementMetadata (ElementID, ElementTypeID, ElementID1, ElementID2) SELECT * FROM OPENXML(@hdoc, '/xml/rs:data/rs:insert/z:row', 0) WITH ( ElementID int, ElementTypeID int, ElementID1 int, ElementID2 int ) ORDER BY ElementID -- orders negative items (new elements) first so they begin counting at 1 for later ID calculation EXEC sp_xml_removedocument @hdoc --- snip --- UPDATE E SET E.ElementTypeID = M.ElementTypeID FROM Element E INNER JOIN #ElementMetadata M ON E.ElementID = M.ElementID WHERE E.ElementID >= 1 AND M.ElementTypeID >= 1 The following query does the correlation of the negative new element ids to the newly inserted ones: UPDATE #ElementMetadata -- Correlate the new ElementIDs with the input rows SET NewElementID = Scope_Identity() - @@RowCount + DataID WHERE ElementID < 0 Other set-based queries do all the other work of validating that the attributes are allowed, are the correct data type, and inserting, updating, and deleting elements and attributes. I hope this brief run-down is useful to others some day! Converting ADO Recordsets to an XML stream was a huge winner for me as it saved all sorts of time and had a namespace and schema already defined that made the results come out correctly. Using a flatter XML format with 2 inputs was also much easier than sticking to some ideal about having everything in a single XML stream.

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How to Modify Data Security in Fusion Applications

- by Elie Wazen

The reference implementation in Fusion Applications is designed with built-in data security on business objects that implement the most common business practices. For example, the “Sales Representative” job has the following two data security rules implemented on an “Opportunity” to restrict the list of Opportunities that are visible to an Sales Representative: Can view all the Opportunities where they are a member of the Opportunity Team Can view all the Opportunities where they are a resource of a territory in the Opportunity territory team While the above conditions may represent the most common access requirements of an Opportunity, some customers may have additional access constraints. This blog post explains: How to discover the data security implemented in Fusion Applications. How to customize data security Illustrative example. a.) How to discover seeded data security definitions The Security Reference Manuals explain the Function and Data Security implemented on each job role. Security Reference Manuals are available on Oracle Enterprise Repository for Oracle Fusion Applications. The following is a snap shot of the security documented for the “Sales Representative” Job. The two data security policies define the list of Opportunities a Sales Representative can view. Here is a sample of data security policies on an Opportunity. Business Object Policy Description Policy Store Implementation Opportunity A Sales Representative can view opportunity where they are a territory resource in the opportunity territory team Role: Opportunity Territory Resource Duty Privilege: View Opportunity (Data) Resource: Opportunity A Sales Representative can view opportunity where they are an opportunity sales team member with view, edit, or full access Role: Opportunity Sales Representative Duty Privilege: View Opportunity (Data) Resource: Opportunity Description of Columns Column Name Description Policy Description Explains the data filters that are implemented as a SQL Where Clause in a Data Security Grant Policy Store Implementation Provides the implementation details of the Data Security Grant for this policy. In this example the Opportunities listed for a “Sales Representative” job role are derived from a combination of two grants defined on two separate duty roles at are inherited by the Sales Representative job role. b.) How to customize data security Requirement 1: Opportunities should be viewed only by members of the opportunity team and not by all the members of all the territories on the opportunity. Solution: Remove the role “Opportunity Territory Resource Duty” from the hierarchy of the “Sales Representative” job role. Best Practice: Do not modify the seeded role hierarchy. Create a custom “Sales Representative” job role and build the role hierarchy with the seeded duty roles. Requirement 2: Opportunities must be more restrictive based on a custom attribute that identifies if a Opportunity is confidential or not. Confidential Opportunities must be visible only the owner of the Opportunity. Solution: Modify the (2) data security policy in the above example as follows: A Sales Representative can view opportunity where they are a territory resource in the opportunity territory team and the opportunity is not confidential. Implementation of this policy is more invasive. The seeded SQL where clause of the data security grant on “Opportunity Territory Resource Duty” has to be modified and the condition that checks for the confidential flag must be added. Best Practice: Do not modify the seeded grant. Create a new grant with the modified condition. End Date the seeded grant. c.) Illustrative Example (Implementing Requirement 2) A data security policy contains the following components: Role Object Instance Set Action Of the above four components, the Role and Instance Set are the only components that are customizable. Object and Actions for that object are seed data and cannot be modified. To customize a seeded policy, “A Sales Representative can view opportunity where they are a territory resource in the opportunity territory team”, Find the seeded policy Identify the Role, Object, Instance Set and Action components of the policy Create a new custom instance set based on the seeded instance set. End Date the seeded policies Create a new data security policy with custom instance set c-1: Find the seeded policy Step 1: 1. Find the Role 2. Open 3. Find Policies Step 2: Click on the Data Security Tab Sort by “Resource Name” Find all the policies with the “Condition” as “where they are a territory resource in the opportunity territory team” In this example, we can see there are 5 policies for “Opportunity Territory Resource Duty” on Opportunity object. Step 3: Now that we know the policy details, we need to create new instance set with the custom condition. All instance sets are linked to the object. Find the object using global search option. Open it and click on “condition” tab Sort by Display name Find the Instance set Edit the instance set and copy the “SQL Predicate” to a notepad. Create a new instance set with the modified SQL Predicate from above by clicking on the icon as shown below. Step 4: End date the seeded data security policies on the duty role and create new policies with your custom instance set. Repeat the navigation in step Edit each of the 5 policies and end date them 3. Create new custom policies with the same information as the seeded policies in the “General Information”, “Roles” and “Action” tabs. 4. In the “Rules” tab, please pick the new instance set that was created in Step 3.

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Book Review Charlene Li's New Book: Open Leadership

- by david.talamelli

A few weeks ago, I was surprised when I looked in our mail box. I had received an Advance Copy of Charlene Li's new book titled "Open Leadership: How Social Technology Can Transform the Way You Lead". Charlene sent a tweet a while back asking anyone interested in receiving the book to submit their details. I sent off my details and didn't think I would hear anything back, so it was a pleasant surprise. With that I almost feel bad that it has taken me 3 weeks to read her book. It took this long mainly because it has been hard to fit in some quality reading time for myself with work, the kids, volunteering, etc..... I am happy to report I have finished her book and wanted to run through my initial thoughts with you. I first came across Charlene Li after reading her book "Groundswell" a few years ago, her latest book "Open Leadership" is a follow on from Groundswell and to me it seems like a natural progression from the question "Ok the business landscape is changing, what do we do now?" For me these two books have a different writing style to them. Groundswell from memory spoke about broad social media concepts and adoption and alerted us to some of the changes taking place in the SM landscape. Open Leadership seems to be focussed on taking those broad concepts and finding ways to implement them into your environment. That is breaking broad concepts down into individual action items that can be measured and analysed. As the business world changes Leaders must change their approach and let go of control to more control. One of the things I love reading about is seeing real life examples of how people and organisations are making these things happen. In this book Charlene has collected some great collateral and case studies from companies such as Cisco, Best Buy, The Red Cross and The State Bank of India (as a side-note, I wish now that I submitted my input for the Leaders I work with here at Oracle - there are some great examples here of people who empower their staff). As society becomes more adept at using social media it is inevitable that Leaders must become open with their employees, clients and partners. From the book some of the key points I took away are (I actually took away a lot more from this book, this is just an overview) : 1) Organisations should encourage risk taking. Without being a "hacker", how can we improve ourselves, our processes, our business, etc... The old saying you only fail by not trying applies here. If Leaders create a culture where people are afraid to stick their neck out - how will you innovate? 2) Leaders need to lead by example - if you want to promote an open and transparent business, a Leader needs to exemplify the traits they would like to see out of their employees. 3) The definition of a Leader is changing, open leadership is about being a catalyst to change that uses networks to spread a vision as opposed to traditional leadership that is viewed as a role. 4) There is a cultural and business shift taking place. Information is more wide-spread and is being disseminated faster than any other time in the past. Leaders who are open and transparent will thrive in this new business environment. 5) Leadership is not defined by a title - it is defined by a person's actions. Also anyone can be a Leader or has Leadership potential in them- it is a matter of drawing that out of people. I found this book useful and I also found myself looking at my own actions and the actions of others around me (including my management) to see how open and transparent I am in my work. For me I am glad I read this book as it validated my own thoughts of the changes we are seeing take place. This book has certainly given me some new ideas and helped me push my own boundaries of what I can do. The book has a number of action plans at the end of some of the chapters such as "Conducting you Openness Audit" that I think have helped me take thoughts and ideas and turn them into concrete action items. I have included a link to the introduction of the book here if anyone wants to have a read of it. If anyone else has read this book, it would be great to hear your thoughts/comments/review. Leave your comments below. This article was originally posted on David Talamelli's Blog - David's Journal on Tap

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System locking up with suspicious messages about hard disk

- by Chris Conway

My system has started behaving strangely, intermittently locking up. I see messages like the following in syslog: Nov 18 22:22:00 claypool kernel: [ 3428.078156] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 Nov 18 22:22:00 claypool kernel: [ 3428.078163] ata3.00: irq_stat 0x40000000 Nov 18 22:22:00 claypool kernel: [ 3428.078167] sr 2:0:0:0: CDB: Test Unit Ready: 00 00 00 00 00 00 Nov 18 22:22:00 claypool kernel: [ 3428.078182] ata3.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0 Nov 18 22:22:00 claypool kernel: [ 3428.078184] res 50/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x1 (device error) Nov 18 22:22:00 claypool kernel: [ 3428.078188] ata3.00: status: { DRDY } Nov 18 22:22:00 claypool kernel: [ 3428.080887] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 Nov 18 22:22:00 claypool kernel: [ 3428.080890] ata3.00: irq_stat 0x40000000 Nov 18 22:22:00 claypool kernel: [ 3428.080893] sr 2:0:0:0: CDB: Test Unit Ready: 00 00 00 00 00 00 Nov 18 22:22:00 claypool kernel: [ 3428.080905] ata3.00: cmd a0/00:00:00:00:00/00:00:00:00:00/a0 tag 0 Nov 18 22:22:00 claypool kernel: [ 3428.080906] res 50/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x1 (device error) Nov 18 22:22:00 claypool kernel: [ 3428.080910] ata3.00: status: { DRDY } And then this: Nov 18 23:13:56 claypool kernel: [ 6544.000798] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen Nov 18 23:13:56 claypool kernel: [ 6544.000804] ata1.00: failed command: FLUSH CACHE EXT Nov 18 23:13:56 claypool kernel: [ 6544.000814] ata1.00: cmd ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0 Nov 18 23:13:56 claypool kernel: [ 6544.000815] res 40/00:00:00:4f:c2/00:00:00:00:00/40 Emask 0x4 (timeout) Nov 18 23:13:56 claypool kernel: [ 6544.000819] ata1.00: status: { DRDY } Nov 18 23:13:56 claypool kernel: [ 6544.000825] ata1: hard resetting link Nov 18 23:14:01 claypool kernel: [ 6549.360324] ata1: link is slow to respond, please be patient (ready=0) Nov 18 23:14:06 claypool kernel: [ 6554.008091] ata1: COMRESET failed (errno=-16) Nov 18 23:14:06 claypool kernel: [ 6554.008103] ata1: hard resetting link Nov 18 23:14:11 claypool kernel: [ 6559.372246] ata1: link is slow to respond, please be patient (ready=0) Nov 18 23:14:16 claypool kernel: [ 6564.020228] ata1: COMRESET failed (errno=-16) Nov 18 23:14:16 claypool kernel: [ 6564.020235] ata1: hard resetting link Nov 18 23:14:21 claypool kernel: [ 6569.380109] ata1: link is slow to respond, please be patient (ready=0) Nov 18 23:14:31 claypool kernel: [ 6579.460243] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Nov 18 23:14:31 claypool kernel: [ 6579.486595] ata1.00: configured for UDMA/133 Nov 18 23:14:31 claypool kernel: [ 6579.486601] ata1.00: retrying FLUSH 0xea Emask 0x4 Nov 18 23:14:31 claypool kernel: [ 6579.486939] ata1.00: device reported invalid CHS sector 0 Nov 18 23:14:31 claypool kernel: [ 6579.486952] ata1: EH complete Nov 18 23:17:01 claypool CRON[3910]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Nov 18 23:17:01 claypool CRON[3908]: (CRON) error (grandchild #3910 failed with exit status 1) Nov 18 23:17:01 claypool postfix/sendmail[3925]: fatal: open /etc/postfix/main.cf: No such file or directory Nov 18 23:17:01 claypool CRON[3908]: (root) MAIL (mailed 1 byte of output; but got status 0x004b, #012) Nov 18 23:39:01 claypool CRON[4200]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -n 200 -r -0 rm) There are no messages marked after 23:39. When I next tried to use the machine, it would not return from the screensaver (blank screen), nor switch to another terminal, and I had to hard reboot it. [UPDATE] The output of smartctl is here. I had trouble getting this, because / is being mounted read-only (?!), which prevents most applications from running. Also, it may not be related, but I have the following worrying messages in dmesg: [ 10.084596] k8temp 0000:00:18.3: Temperature readouts might be wrong - check erratum #141 [ 10.098477] i2c i2c-0: nForce2 SMBus adapter at 0x600 [ 10.098483] ACPI: resource nForce2_smbus [io 0x0700-0x073f] conflicts with ACPI region SM00 [??? 0x00000700-0x0000073f flags 0x30] [ 10.098486] ACPI: This conflict may cause random problems and system instability [ 10.098487] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [ 10.098509] i2c i2c-1: nForce2 SMBus adapter at 0x700 [ 10.112570] Linux agpgart interface v0.103 [ 10.155329] atk: Resources not safely usable due to acpi_enforce_resources kernel parameter [ 10.161506] it87: Found IT8712F chip at 0x290, revision 8 [ 10.161517] it87: VID is disabled (pins used for GPIO) [ 10.161527] it87: in3 is VCC (+5V) [ 10.161528] it87: in7 is VCCH (+5V Stand-By) [ 10.161560] ACPI: resource it87 [io 0x0295-0x0296] conflicts with ACPI region ECRE [??? 0x00000290-0x000002af flags 0x45] [ 10.161562] ACPI: This conflict may cause random problems and system instability [ 10.161564] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver [UPDATE 2] I swapped in a new SATA cable, per Phil's suggestion. The current output of smartctl is here, if it helps. [UPDATE 3] I don't think the cable fixed it. The system hasn't locked up yet, but my media player crashed a few minutes ago and I have the following in the syslog: Nov 20 16:07:17 claypool kernel: [ 2294.400033] ata1: link is slow to respond, please be patient (ready=0) Nov 20 16:07:47 claypool kernel: [ 2324.084581] ata1: COMRESET failed (errno=-16) Nov 20 16:07:47 claypool kernel: [ 2324.084588] ata1: limiting SATA link speed to 1.5 Gbps Nov 20 16:07:47 claypool kernel: [ 2324.084592] ata1: hard resetting link I get the following response from smartctl: $ sudo smartctl -a /dev/sda [sudo] password for chris: sudo: Can't open /var/lib/sudo/chris/0: Read-only file system smartctl 5.40 2010-03-16 r3077 [i686-pc-linux-gnu] (local build) Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net Device: /0:0:0:0 Version: scsiModePageOffset: response length too short, resp_len=47 offset=50 bd_len=46 >> Terminate command early due to bad response to IEC mode page A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.

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C# 4.0: Covariance And Contravariance In Generics

- by Paulo Morgado

C# 4.0 (and .NET 4.0) introduced covariance and contravariance to generic interfaces and delegates. But what is this variance thing? According to Wikipedia, in multilinear algebra and tensor analysis, covariance and contravariance describe how the quantitative description of certain geometrical or physical entities changes when passing from one coordinate system to another.(*) But what does this have to do with C# or .NET? In type theory, a the type T is greater (>) than type S if S is a subtype (derives from) T, which means that there is a quantitative description for types in a type hierarchy. So, how does covariance and contravariance apply to C# (and .NET) generic types? In C# (and .NET), variance applies to generic type parameters and not to the resulting generic type. A generic type parameter is: covariant if the ordering of the generic types follows the ordering of the generic type parameters: Generic<T> = Generic<S> for T = S. contravariant if the ordering of the generic types is reversed from the ordering of the generic type parameters: Generic<T> = Generic<S> for T = S. invariant if neither of the above apply. If this definition is applied to arrays, we can see that arrays have always been covariant because this is valid code: object[] objectArray = new string[] { "string 1", "string 2" }; objectArray[0] = "string 3"; objectArray[1] = new object(); However, when we try to run this code, the second assignment will throw an ArrayTypeMismatchException. Although the compiler was fooled into thinking this was valid code because an object is being assigned to an element of an array of object, at run time, there is always a type check to guarantee that the runtime type of the definition of the elements of the array is greater or equal to the instance being assigned to the element. In the above example, because the runtime type of the array is array of string, the first assignment of array elements is valid because string = string and the second is invalid because string = object. This leads to the conclusion that, although arrays have always been covariant, they are not safely covariant – code that compiles is not guaranteed to run without errors. In C#, the way to define that a generic type parameter as covariant is using the out generic modifier: public interface IEnumerable<out T> { IEnumerator<T> GetEnumerator(); } public interface IEnumerator<out T> { T Current { get; } bool MoveNext(); } Notice the convenient use the pre-existing out keyword. Besides the benefit of not having to remember a new hypothetic covariant keyword, out is easier to remember because it defines that the generic type parameter can only appear in output positions — read-only properties and method return values. In a similar way, the way to define a type parameter as contravariant is using the in generic modifier: public interface IComparer<in T> { int Compare(T x, T y); } Once again, the use of the pre-existing in keyword makes it easier to remember that the generic type parameter can only be used in input positions — write-only properties and method non ref and non out parameters. Because covariance and contravariance apply only to the generic type parameters, a generic type definition can have both covariant and contravariant generic type parameters in its definition: public delegate TResult Func<in T, out TResult>(T arg); A generic type parameter that is not marked covariant (out) or contravariant (in) is invariant. All the types in the .NET Framework where variance could be applied to its generic type parameters have been modified to take advantage of this new feature. In summary, the rules for variance in C# (and .NET) are: Variance in type parameters are restricted to generic interface and generic delegate types. A generic interface or generic delegate type can have both covariant and contravariant type parameters. Variance applies only to reference types; if you specify a value type for a variant type parameter, that type parameter is invariant for the resulting constructed type. Variance does not apply to delegate combination. That is, given two delegates of types Action<Derived> and Action<Base>, you cannot combine the second delegate with the first although the result would be type safe. Variance allows the second delegate to be assigned to a variable of type Action<Derived>, but delegates can combine only if their types match exactly. If you want to learn more about variance in C# (and .NET), you can always read: Covariance and Contravariance in Generics — MSDN Library Exact rules for variance validity — Eric Lippert Events get a little overhaul in C# 4, Afterward: Effective Events — Chris Burrows Note: Because variance is a feature of .NET 4.0 and not only of C# 4.0, all this also applies to Visual Basic 10.

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Create Orchard Module in a Separate Project

- by Steve Michelotti

The Orchard Project is a new OOS Microsoft project that is being developed up on CodePlex. From the Orchard home page on CodePlex, it states “Orchard project is focused on delivering a .NET-based CMS application that will allow users to rapidly create content-driven Websites, and an extensibility framework that will allow developers and customizers to provide additional functionality through modules and themes.” The Orchard Project site contains additional information including documentation and walkthroughs. The ability to create a composite solution based on a collection of modules is a compelling feature. In Orchard, these modules can just be created as simple MVC Areas or they can also be created inside of stand-alone web application projects. The walkthrough for writing an Orchard module that is available on the Orchard site uses a simple Area that is created inside of the host application. It is based on the Orchard MIX presentation. This walkthrough does an effective job introducing various Orchard concepts such as hooking into the navigation system, theme/layout system, content types, and more. However, creating an Orchard module in a separate project does not seem to be concisely documented anywhere. Orchard ships with several module OOTB that are in separate assemblies – but again, it’s not well documented how to get started building one from scratch. The following are the steps I took to successfully get an Orchard module in a separate project up and running. Step 1 – Download the OrchardIIS.zip file from the Orchard Release page. Unzip and open up the solution. Step 2 – Add your project to the solution. I named my project “Orchard.Widget” and used and “MVC 2 Empty Web Application” project type. Make sure you put the physical path inside the “Modules” sub-folder to the main project like this: At this point the solution should look like: Step 3 – Add assembly references to Orchard.dll and Orchard.Core.dll. Step 4 – Add a controller and view. I’ll just create a Hello World controller and view. Notice I created the view as a partial view (*.ascx). Also add the [Themed] attribute to the top of the HomeController class just like the normal Orchard walk through shows it. Step 5 – Add Module.txt to the project root. The is a very important step. Orchard will not recognize your module without this text file present. It can contain just the name of your module: name: Widget Step 6 – Add Routes.cs. Notice I’ve given an area name of “Orchard.Widget” on lines 26 and 33. 1: using System; 2: using System.Collections.Generic; 3: using System.Web.Mvc; 4: using System.Web.Routing; 5: using Orchard.Mvc.Routes; 6: 7: namespace Orchard.Widget 8: { 9: public class Routes : IRouteProvider 10: { 11: public void GetRoutes(ICollection<RouteDescriptor> routes) 12: { 13: foreach (var routeDescriptor in GetRoutes()) 14: { 15: routes.Add(routeDescriptor); 16: } 17: } 18: 19: public IEnumerable<RouteDescriptor> GetRoutes() 20: { 21: return new[] { 22: new RouteDescriptor { 23: Route = new Route( 24: "Widget/{controller}/{action}/{id}", 25: new RouteValueDictionary { 26: {"area", "Orchard.Widget"}, 27: {"controller", "Home"}, 28: {"action", "Index"}, 29: {"id", ""} 30: }, 31: new RouteValueDictionary(), 32: new RouteValueDictionary { 33: {"area", "Orchard.Widget"} 34: }, 35: new MvcRouteHandler()) 36: } 37: }; 38: } 39: } 40: } Step 7 – Add MainMenu.cs. This will make sure that an item appears in the main menu called “Widget” which points to the module. 1: using System; 2: using Orchard.UI.Navigation; 3: 4: namespace Orchard.Widget 5: { 6: public class MainMenu : INavigationProvider 7: { 8: public void GetNavigation(NavigationBuilder builder) 9: { 10: builder.Add(menu => menu.Add("Widget", item => item.Action("Index", "Home", new 11: { 12: area = "Orchard.Widget" 13: }))); 14: } 15: 16: public string MenuName 17: { 18: get { return "main"; } 19: } 20: } 21: } Step 8 – Clean up web.config. By default Visual Studio adds numerous sections to the web.config. The sections that can be removed are: appSettings, connectionStrings, authentication, membership, profile, and roleManager. Step 9 – Delete Global.asax. This project will ultimately be running from inside the Orchard host so this “sub-site” should not have its own Global.asax. Now you’re ready the run the app. When you first run it, the “Widget” menu item will appear in the main menu because of the MainMenu.cs file we added: We can then click the “Widget” link in the main menu to send us over to our view: Packaging From start to finish, it’s a relatively painless experience but it could be better. For example, a Visual Studio project template that encapsulates aspects from this blog post would definitely make it a lot easier to get up and running with creating an Orchard module. Another aspect I found interesting is that if you read the first paragraph of the walkthrough, it says, “You can also develop modules as separate projects, to be packaged and shared with other users of Orchard CMS (the packaging story is still to be defined, along with marketplaces for sharing modules).” In particular, I will be extremely curious to see how the “packaging story” evolves. The first thing that comes to mind for me is: what if we explored MvcContrib Portable Areas as a potential mechanism for this packaging? This would certainly make things easy since all artifacts (aspx, aspx, images, css, javascript) are all wrapped up into a single assembly. Granted, Orchard does have its own infrastructure for layouts and themes but it seems like integrating portable areas into this pipeline would not be a difficult undertaking. Maybe that’ll be the next research task. :)

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MySQL server stopped working after upgrade

- by umpirsky

I upgraded to 12.04 and my MySQL server just stopped working. It throws: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) I tried to reinstall it from software center, but it fails with: Package operation failed The installation or removal of a software package failed. installArchives() failed: Selecting previously unselected package mysql-server. (Reading database ... (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ... 30% (Reading database ... 35% (Reading database ... 40% (Reading database ... 45% (Reading database ... 50% (Reading database ... 55% (Reading database ... 60% (Reading database ... 65% (Reading database ... 70% (Reading database ... 75% (Reading database ... 80% (Reading database ... 85% (Reading database ... 90% (Reading database ... 95% (Reading database ... 100% (Reading database ... 243412 files and directories currently installed.) Unpacking mysql-server (from .../mysql-server_5.5.22-0ubuntu1_all.deb) ... Setting up mysql-server-5.5 (5.5.22-0ubuntu1) ... start: Job failed to start invoke-rc.d: initscript mysql, action "start" failed. dpkg: error processing mysql-server-5.5 (--configure): subprocess installed post-installation script returned error exit status 1 No apport report written because MaxReports is reached already dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.5; however: Package mysql-server-5.5 is not configured yet. dpkg: error processing mysql-server (--configure): dependency problems - leaving unconfigured No apport report written because MaxReports is reached already Errors were encountered while processing: mysql-server-5.5 mysql-server Error in function: Setting up mysql-server-5.5 (5.5.22-0ubuntu1) ... start: Job failed to start invoke-rc.d: initscript mysql, action "start" failed. dpkg: error processing mysql-server-5.5 (--configure): subprocess installed post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of mysql-server: mysql-server depends on mysql-server-5.5; however: Package mysql-server-5.5 is not configured yet. dpkg: error processing mysql-server (--configure): dependency problems - leaving unconfigured I also tried: $ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: mysql-server-5.5 mysql-server-core-5.5 Use 'apt-get autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Setting up mysql-server-5.5 (5.5.22-0ubuntu1) ... start: Job failed to start invoke-rc.d: initscript mysql, action "start" failed. dpkg: error processing mysql-server-5.5 (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: mysql-server-5.5 E: Sub-process /usr/bin/dpkg returned an error code (1) Any idea? EDIT: Crash report is being auto generated. EDIT: After trying and trying I got suggestion to do: #apt-get --purge remove mysql-server-5.1 mysql-server-5.5 Reading package lists... Done Building dependency tree Reading state information... Done Virtual packages like 'mysql-server-5.1' can't be removed The following packages will be REMOVED: mysql-server-5.5* 0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded. 1 not fully installed or removed. After this operation, 31.3 MB disk space will be freed. Do you want to continue [Y/n]? Y (Reading database ... 243407 files and directories currently installed.) Removing mysql-server-5.5 ... Purging configuration files for mysql-server-5.5 ... Processing triggers for ureadahead ... Processing triggers for man-db ... The most important part is: Virtual packages like 'mysql-server-5.1' can't be removed Any idea?

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Android Can't get two virtual joysticks to move independently and at the same time

- by Cole

@Override public boolean onTouch(View v, MotionEvent event) { // TODO Auto-generated method stub float r = 70; float centerLx = (float) (screenWidth*.3425); float centerLy = (float) (screenHeight*.4958); float centerRx = (float) (screenWidth*.6538); float centerRy = (float) (screenHeight*.4917); float dx = 0; float dy = 0; float theta; float c; int action = event.getAction(); int actionCode = action & MotionEvent.ACTION_MASK; int pid = (action & MotionEvent.ACTION_POINTER_INDEX_MASK) >> MotionEvent.ACTION_POINTER_INDEX_SHIFT; int fingerid = event.getPointerId(pid); int x = (int) event.getX(pid); int y = (int) event.getY(pid); c = FloatMath.sqrt(dx*dx + dy*dy); theta = (float) Math.atan(Math.abs(dy/dx)); switch (actionCode) { case MotionEvent.ACTION_DOWN: case MotionEvent.ACTION_POINTER_DOWN: //if touching down on left stick, set leftstick ID to this fingerid. if(x < screenWidth/2 && c<r*.8) { lsId = fingerid; dx = x-centerLx; dy = y-centerLy; touchingLs = true; } else if(x > screenWidth/2 && c<r*.8) { rsId = fingerid; dx = x-centerRx; dy = y-centerRy; touchingRs = true; } break; case MotionEvent.ACTION_MOVE: if (touchingLs && fingerid == lsId) { dx = x - centerLx; dy = y - centerLy; }else if (touchingRs && fingerid == rsId) { dx = x - centerRx; dy = y - centerRy; } c = FloatMath.sqrt(dx*dx + dy*dy); theta = (float) Math.atan(Math.abs(dy/dx)); //if touching outside left radius and moving left stick if(c >= r && touchingLs && fingerid == lsId) { if(dx>0 && dy<0) { //top right quadrant lsX = r * FloatMath.cos(theta); lsY = -(r * FloatMath.sin(theta)); Log.i("message", "top right"); } if(dx<0 && dy<0) { //top left quadrant lsX = -(r * FloatMath.cos(theta)); lsY = -(r * FloatMath.sin(theta)); Log.i("message", "top left"); } if(dx<0 && dy>0) { //bottom left quadrant lsX = -(r * FloatMath.cos(theta)); lsY = r * FloatMath.sin(theta); Log.i("message", "bottom left"); } else if(dx > 0 && dy > 0){ //bottom right quadrant lsX = r * FloatMath.cos(theta); lsY = r * FloatMath.sin(theta); Log.i("message", "bottom right"); } } if(c >= r && touchingRs && fingerid == rsId) { if(dx>0 && dy<0) { //top right quadrant rsX = r * FloatMath.cos(theta); rsY = -(r * FloatMath.sin(theta)); Log.i("message", "top right"); } if(dx<0 && dy<0) { //top left quadrant rsX = -(r * FloatMath.cos(theta)); rsY = -(r * FloatMath.sin(theta)); Log.i("message", "top left"); } if(dx<0 && dy>0) { //bottom left quadrant rsX = -(r * FloatMath.cos(theta)); rsY = r * FloatMath.sin(theta); Log.i("message", "bottom left"); } else if(dx > 0 && dy > 0) { rsX = r * FloatMath.cos(theta); rsY = r * FloatMath.sin(theta); Log.i("message", "bottom right"); } } else { if(c < r && touchingLs && fingerid == lsId) { lsX = dx; lsY = dy; } if(c < r && touchingRs && fingerid == rsId){ rsX = dx; rsY = dy; } } break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_POINTER_UP: if (fingerid == lsId) { lsId = -1; lsX = 0; lsY = 0; touchingLs = false; } else if (fingerid == rsId) { rsId = -1; rsX = 0; rsY = 0; touchingRs = false; } break; } return true; } There's a left joystick and a right joystick. Right now only one will move at a time. If someone could set me on the right track I would be incredibly grateful cause I've been having nightmares about this problem.

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Stumbling Through: Making a case for the K2 Case Management Framework

I have recently attended a three-day training session on K2s Case Management Framework (CMF), a free framework built on top of K2s blackpearl workflow product, and I have come away with several different impressions for some of the different aspects of the framework. Before we get into the details, what is the Case Management Framework? It is essentially a suite of tools that, when used together, solve many common workflow scenarios. The tool has been developed over time by K2 consultants that have realized they tend to solve the same problems over and over for various clients, so they attempted to package all of those common solutions into one framework. Most of these common problems involve workflow process that arent necessarily direct and would tend to be difficult to model. Such solutions could be achieved in blackpearl alone, but the workflows would be complex and difficult to follow and maintain over time. CMF attempts to simplify such scenarios not so much by black-boxing the workflow processes, but by providing different points of entry to the processes allowing them to be simpler, moving the complexity to a middle layer. It is not a solution in and of itself, development is still required to tie the pieces together. CMF is under continuous development, both a plus and a minus in that bugs are fixed quickly and features added regularly, but it may be difficult to know which versions are the most stable. CMF is not an officially supported K2 product, which means you will not get technical support but you will get access to the source code. The example given of a business process that would fit well into CMF is that of a file cabinet, where each folder in said file cabinet is a case that contains all of the data associated with one complaint/customer/incident/etc. and various users can access that case at any time and take one of a set of pre-determined actions on it. When I was given that example, my first thought was that any workflow I have ever developed in the past could be made to fit this model there must be more than just this model to help decide if CMF is the right solution. As the training went on, we learned that one of the key features of CMF is SharePoint integration as each case gets a SharePoint site created for it, and there are a number of excellent web parts that can be used to design a portal for users to get at all the information on their cases. While CMF does not require SharePoint, without it you will be missing out on a huge portion of functionality that CMF offers. My opinion is that without SharePoint integration, you may as well write your workflows and other components the old fashioned way. When I heard that each case gets its own SharePoint site created for it, warning bells immediately went off in my head as I felt that depending on the data load, a CMF enabled solution could quickly overwhelm SharePoint with thousands of sites so we have yet another deciding factor for CMF: Just how many cases will your solution be creating? While it is not necessary to use the site-per-case model, it is one of the more useful parts of the framework. Without it, you are losing a big chunk of what CMF has to offer. When it comes to developing on top of the Case Management Framework, it becomes a matter of configuring what makes up a case, what can be done to a case, where each action on a case should take the user, and then typing up actions to case statuses. This last step is one that I immediately warmed up to, as just about every workflow Ive designed in the past needed some sort of mapping table to set the status of a work item based on the action being taken definitely one of those common solutions that it is good to see rolled up into a re-useable entity (and it gets a nice configuration UI to boot!). This concept is a little different than traditional workflow design, in that you dont have to think of an end-to-end process around passing a case along a path, rather, you must envision the case as central object with workflow threads branching off of it and doing their own thing with the case data. Certainly there can be certain workflow threads that get rather complex, but the idea is that they RELATE to the case, they dont BECOME the case (though it is still possible with action->status mappings to prevent certain actions in certain cases, so it isnt always a wide-open free for all of actions on a case). I realize that this description of the Case Management Framework merely scratches the surface on what the product actually can do, and I dont think Ive conclusively defined for what sort of business scenario you can make a case for Case Management Framework. What I do hope to have accomplished with this post is to raise awareness of CMF there is a (free!) product out there that could potentially simplify a tangled workflow process and give (for free!) a very useful set of SharePoint web parts and a nice set of (free!) reports. The best way to see if it will truly fit your needs is to give it a try did I mention it is FREE? Er, ok, so it is free, but only obtainable at this time for K2 partnersDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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Wireless Problem on Acer Aspire 5610z

- by Ugur Can Yalaki

I installed ubuntu 12.04 on my machine, but I can't get wireless connection to work. My computer is Acer Aspire 5610z. I found that some other people that have same computer, face the same problem. Here is some information about it: ****** info trace ****** * uname -a * Linux ucy-Aspire-5610Z 3.8.0-32-generic #47~precise1-Ubuntu SMP Wed Oct 2 16:22:28 UTC 2013 i686 i686 i386 GNU/Linux * lsb_release * Distributor ID: Ubuntu Description: Ubuntu 12.04.3 LTS Release: 12.04 Codename: precise * lspci * 05:00.0 Network controller [0280]: Broadcom Corporation BCM4311 802.11b/g WLAN [14e4:4311] (rev 01) Subsystem: AMBIT Microsystem Corp. Device [1468:0422] Kernel driver in use: b43-pci-bridge 06:01.0 Ethernet controller [0200]: Broadcom Corporation BCM4401-B0 100Base-TX [14e4:170c] (rev 02) Subsystem: Acer Incorporated [ALI] Device [1025:0090] Kernel driver in use: b44 * lsusb * Bus 001 Device 004: ID 04e8:6863 Samsung Electronics Co., Ltd Bus 001 Device 002: ID 5986:0100 Acer, Inc Orbicam Bus 002 Device 002: ID 046d:c52f Logitech, Inc. Wireless Mouse M305 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub * PCMCIA Card Info * PRODID_1="" PRODID_2="" PRODID_3="" PRODID_4="" MANFID=0000,0000 FUNCID=255 * iwconfig * * rfkill * 0: acer-wireless: Wireless LAN Soft blocked: no Hard blocked: no * lsmod * ssb_hcd 12781 0 ssb 51554 2 ssb_hcd,b44 * nm-tool * NetworkManager Tool State: connected (global) Device: usb0 [Wired connection 2] ------------------------------------------- Type: Wired Driver: rndis_host State: connected Default: yes HW Address: Capabilities: Carrier Detect: yes Wired Properties Carrier: on IPv4 Settings: Address: 192.168.42.7 Prefix: 24 (255.255.255.0) Gateway: 192.168.42.129 DNS: 192.168.42.129 IPv6 Settings: Address: ::a05d:a1ff:fea4:1738 Prefix: 64 Gateway: fe80::504d:76ff:fe86:db04 Address: fe80::a05d:a1ff:fea4:1738 Prefix: 64 Gateway: fe80::504d:76ff:fe86:db04 DNS: fe80::504d:76ff:fe86:db04 Device: eth2 ----------------------------------------------------------------- Type: Wired Driver: b44 State: unavailable Default: no HW Address: Capabilities: Carrier Detect: yes Wired Properties Carrier: off * NetworkManager.state * [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true * NetworkManager.conf * [main] plugins=ifupdown,keyfile dns=dnsmasq [ifupdown] managed=false * interfaces * auto lo iface lo inet loopback * iwlist * * resolv.conf * nameserver 127.0.0.1 * blacklist * [/etc/modprobe.d/blacklist-ath_pci.conf] blacklist ath_pci [/etc/modprobe.d/blacklist-bcm43.conf] blacklist b43 blacklist b43legacy blacklist ssb blacklist bcm43xx blacklist brcm80211 blacklist brcmfmac blacklist brcmsmac blacklist bcma [/etc/modprobe.d/blacklist.conf] blacklist evbug blacklist usbmouse blacklist usbkbd blacklist eepro100 blacklist de4x5 blacklist eth1394 blacklist snd_intel8x0m blacklist snd_aw2 blacklist i2c_i801 blacklist prism54 blacklist bcm43xx blacklist garmin_gps blacklist asus_acpi blacklist snd_pcsp blacklist pcspkr blacklist amd76x_edac * modinfo * filename: /lib/modules/3.8.0-32-generic/kernel/drivers/usb/host/ssb-hcd.ko license: GPL description: Common USB driver for SSB Bus author: Hauke Mehrtens srcversion: E127A51EDC8F44D2C2A8F15 alias: ssb:v4243id0819rev* alias: ssb:v4243id0817rev* alias: ssb:v4243id0808rev* depends: ssb intree: Y vermagic: 3.8.0-32-generic SMP mod_unload modversions 686 filename: /lib/modules/3.8.0-32-generic/kernel/drivers/ssb/ssb.ko license: GPL description: Sonics Silicon Backplane driver srcversion: 14621F6EC014F731244437C alias: pci:v000014E4d00004350sv*sd*bc*sc*i* alias: pci:v000014E4d0000432Csv*sd*bc*sc*i* alias: pci:v000014E4d0000432Bsv*sd*bc*sc*i* alias: pci:v000014E4d00004329sv*sd*bc*sc*i* alias: pci:v000014E4d00004328sv*sd*bc*sc*i* alias: pci:v000014E4d00004325sv*sd*bc*sc*i* alias: pci:v000014E4d00004324sv*sd*bc*sc*i* alias: pci:v000014E4d0000A8D6sv*sd*bc*sc*i* alias: pci:v000014E4d00004322sv*sd*bc*sc*i* alias: pci:v000014E4d00004321sv*sd*bc*sc*i* alias: pci:v000014E4d00004320sv*sd*bc*sc*i* alias: pci:v000014E4d00004319sv*sd*bc*sc*i* alias: pci:v000014A4d00004318sv*sd*bc*sc*i* alias: pci:v000014E4d00004318sv*sd*bc*sc*i* alias: pci:v000014E4d00004315sv*sd*bc*sc*i* alias: pci:v000014E4d00004312sv*sd*bc*sc*i* alias: pci:v000014E4d00004311sv*sd*bc*sc*i* alias: pci:v000014E4d00004307sv*sd*bc*sc*i* alias: pci:v000014E4d00004306sv*sd*bc*sc*i* alias: pci:v000014E4d00004301sv*sd*bc*sc*i* depends: intree: Y vermagic: 3.8.0-32-generic SMP mod_unload modversions 686 * udev rules * PCI device 0x14e4:/sys/devices/pci0000:00/0000:00:1e.0/0000:06:01.0/ssb1:0 (b44) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0" PCI device 0x14e4:/sys/devices/pci0000:00/0000:00:1e.0/0000:06:01.0/ssb2:0 (b44) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1" PCI device 0x14e4:/sys/devices/pci0000:00/0000:00:1e.0/0000:06:01.0/ssb3:0 (b44) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth2" * dmesg * [ 2.385241] ssb: Found chip with id 0x4311, rev 0x01 and package 0x00 [ 2.385256] ssb: Core 0 found: ChipCommon (cc 0x800, rev 0x11, vendor 0x4243) [ 2.385266] ssb: Core 1 found: IEEE 802.11 (cc 0x812, rev 0x0A, vendor 0x4243) [ 2.385276] ssb: Core 2 found: USB 1.1 Host (cc 0x817, rev 0x03, vendor 0x4243) [ 2.385286] ssb: Core 3 found: PCI-E (cc 0x820, rev 0x01, vendor 0x4243) [ 2.448147] ssb: Sonics Silicon Backplane found on PCI device 0000:05:00.0 [ 2.468112] ssb: Found chip with id 0x4401, rev 0x02 and package 0x00 [ 2.468124] ssb: Core 0 found: Fast Ethernet (cc 0x806, rev 0x07, vendor 0x4243) [ 2.468132] ssb: Core 1 found: V90 (cc 0x807, rev 0x03, vendor 0x4243) [ 2.468140] ssb: Core 2 found: PCI (cc 0x804, rev 0x0A, vendor 0x4243) [ 2.508230] ssb: Sonics Silicon Backplane found on PCI device 0000:06:01.0 [ 2.528620] b44 ssb1:0 eth0: Broadcom 44xx/47xx 10/100 PCI ethernet driver ******** done ******** Thank you already for your help.

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LIMBO fails on startup with Internal errors - invalid parameters received

- by user61262

I installed LIMBO from the Humble Bundle V and as far as I am aware, this has wine packaged with it (I also installed the latest from the repo's in case is was because of that). However the game doesn't even start and fails with the message: Wine Program Error Internal errors - invalid parameters received. Is there a way to log the error or does anyone know why this happens? This question was asked previously but it seems to have disappeared. My Graphics cards is a Geforece GT 250 Cheers ice. [edit: Wine outputs the following error: wine /opt/limbo/support/limbo/drive_c/Program\ Files/limbo/limbo.exe fixme:system:SystemParametersInfoW Unimplemented action: 59 (SPI_SETSTICKYKEYS) fixme:system:SystemParametersInfoW Unimplemented action: 53 (SPI_SETTOGGLEKEYS) fixme:system:SystemParametersInfoW Unimplemented action: 51 (SPI_SETFILTERKEYS) fixme:win:EnumDisplayDevicesW ((null),0,0x32f580,0x00000000), stub! err:x11settings:X11DRV_ChangeDisplaySettingsEx No matching mode found 1920x1080x32 @60! (XRandR) err:xrandr:X11DRV_XRandR_SetCurrentMode Resolution change not successful -- perhaps display has changed? wine: Unhandled page fault on read access to 0x00000000 at address 0x48213e (thread 0009), starting debugger... The debugger has the following output: Unhandled exception: page fault on read access to 0x00000000 in 32-bit code (0x0048213e). Register dump: CS:0073 SS:007b DS:007b ES:007b FS:0033 GS:003b EIP:0048213e ESP:0032f9f4 EBP:0037cdd0 EFLAGS:00010202( R- -- I - - - ) EAX:00000000 EBX:00000000 ECX:00000000 EDX:0037cf4c ESI:0037cda8 EDI:0037cdcc Stack dump: 0x0032f9f4: 0037cda8 0034c708 7bc35120 00000000 0x0032fa04: 0037cda8 0032fa38 0079fc58 00000000 0x0032fa14: 0048b7d4 00000001 0037cdcc 00000001 0x0032fa24: 00000780 00000438 0034c620 00000000 0x0032fa34: 0034c708 0032fa78 007a04e2 00000002 0x0032fa44: 0048c4bc 00000780 00000438 0037cda8 Backtrace: =>0 0x0048213e in limbo (+0x8213e) (0x0037cdd0) 0x0048213e: movl 0x0(%eax),%edx Modules: Module Address Debug info Name (103 modules) PE 400000- 926000 Export limbo PE 10000000-101ff000 Deferred d3dx9_43 ELF 79bb3000-7b800000 Deferred libnvidia-glcore.so.295.53 ELF 7b800000-7ba15000 Deferred kernel32<elf> \-PE 7b810000-7ba15000 \ kernel32 ELF 7bc00000-7bcc3000 Deferred ntdll<elf> \-PE 7bc10000-7bcc3000 \ ntdll ELF 7bf00000-7bf04000 Deferred <wine-loader> ELF 7d7e0000-7d7e4000 Deferred libnvidia-tls.so.295.53 ELF 7d7e4000-7d8bc000 Deferred libgl.so.1 ELF 7d9d0000-7d9d9000 Deferred librt.so.1 ELF 7d9d9000-7d9de000 Deferred libgpg-error.so.0 ELF 7d9de000-7d9f6000 Deferred libresolv.so.2 ELF 7d9f6000-7d9fa000 Deferred libkeyutils.so.1 ELF 7d9fa000-7da43000 Deferred libdbus-1.so.3 ELF 7da43000-7da55000 Deferred libp11-kit.so.0 ELF 7da55000-7dada000 Deferred libgcrypt.so.11 ELF 7dada000-7daec000 Deferred libtasn1.so.3 ELF 7daec000-7daf5000 Deferred libkrb5support.so.0 ELF 7daf5000-7dafa000 Deferred libcom_err.so.2 ELF 7dafa000-7db22000 Deferred libk5crypto.so.3 ELF 7db22000-7dbf1000 Deferred libkrb5.so.3 ELF 7dbf1000-7dc03000 Deferred libavahi-client.so.3 ELF 7dc03000-7dc11000 Deferred libavahi-common.so.3 ELF 7dc11000-7dcd5000 Deferred libgnutls.so.26 ELF 7dcd5000-7dd13000 Deferred libgssapi_krb5.so.2 ELF 7dd13000-7dd66000 Deferred libcups.so.2 ELF 7dd94000-7ddc8000 Deferred uxtheme<elf> \-PE 7dda0000-7ddc8000 \ uxtheme ELF 7ddc8000-7ddd3000 Deferred libxcursor.so.1 ELF 7ddd4000-7dde7000 Deferred gnome-keyring-pkcs11.so ELF 7de47000-7de4d000 Deferred libxfixes.so.3 ELF 7deac000-7ded6000 Deferred libexpat.so.1 ELF 7ded6000-7df0a000 Deferred libfontconfig.so.1 ELF 7df0a000-7df1a000 Deferred libxi.so.6 ELF 7df1a000-7df1e000 Deferred libxcomposite.so.1 ELF 7df1e000-7df27000 Deferred libxrandr.so.2 ELF 7df27000-7df31000 Deferred libxrender.so.1 ELF 7df31000-7df37000 Deferred libxxf86vm.so.1 ELF 7df37000-7df3b000 Deferred libxinerama.so.1 ELF 7df3b000-7df5d000 Deferred imm32<elf> \-PE 7df40000-7df5d000 \ imm32 ELF 7df5d000-7df64000 Deferred libxdmcp.so.6 ELF 7df64000-7df85000 Deferred libxcb.so.1 ELF 7df85000-7df9f000 Deferred libice.so.6 ELF 7df9f000-7e0d3000 Deferred libx11.so.6 ELF 7e0d3000-7e0e5000 Deferred libxext.so.6 ELF 7e0e5000-7e178000 Deferred winex11<elf> \-PE 7e0f0000-7e178000 \ winex11 ELF 7e178000-7e18e000 Deferred libz.so.1 ELF 7e18e000-7e228000 Deferred libfreetype.so.6 ELF 7e228000-7e247000 Deferred libtinfo.so.5 ELF 7e247000-7e269000 Deferred libncurses.so.5 ELF 7e27d000-7e292000 Deferred xinput1_3<elf> \-PE 7e280000-7e292000 \ xinput1_3 ELF 7e292000-7e2a6000 Deferred psapi<elf> \-PE 7e2a0000-7e2a6000 \ psapi ELF 7e2a6000-7e304000 Deferred dbghelp<elf> \-PE 7e2b0000-7e304000 \ dbghelp ELF 7e304000-7e391000 Deferred msvcrt<elf> \-PE 7e320000-7e391000 \ msvcrt ELF 7e391000-7e4c5000 Deferred wined3d<elf> \-PE 7e3a0000-7e4c5000 \ wined3d ELF 7e4c5000-7e4fe000 Deferred d3d9<elf> \-PE 7e4d0000-7e4fe000 \ d3d9 ELF 7e4fe000-7e573000 Deferred rpcrt4<elf> \-PE 7e510000-7e573000 \ rpcrt4 ELF 7e573000-7e67b000 Deferred ole32<elf> \-PE 7e590000-7e67b000 \ ole32 ELF 7e67b000-7e697000 Deferred dinput8<elf> \-PE 7e680000-7e697000 \ dinput8 ELF 7e697000-7e6d1000 Deferred winspool<elf> \-PE 7e6a0000-7e6d1000 \ winspool ELF 7e6d1000-7e7c9000 Deferred comctl32<elf> \-PE 7e6e0000-7e7c9000 \ comctl32 ELF 7e7c9000-7e833000 Deferred shlwapi<elf> \-PE 7e7e0000-7e833000 \ shlwapi ELF 7e833000-7ea44000 Deferred shell32<elf> \-PE 7e840000-7ea44000 \ shell32 ELF 7ea44000-7eb23000 Deferred comdlg32<elf> \-PE 7ea50000-7eb23000 \ comdlg32 ELF 7eb23000-7eb3c000 Deferred version<elf> \-PE 7eb30000-7eb3c000 \ version ELF 7eb3c000-7eb9c000 Deferred advapi32<elf> \-PE 7eb50000-7eb9c000 \ advapi32 ELF 7eb9c000-7ec59000 Deferred gdi32<elf> \-PE 7ebb0000-7ec59000 \ gdi32 ELF 7ec59000-7ed99000 Deferred user32<elf> \-PE 7ec70000-7ed99000 \ user32 ELF 7ef99000-7efa6000 Deferred libnss_files.so.2 ELF 7efa6000-7efc0000 Deferred libnsl.so.1 ELF 7efc0000-7efec000 Deferred libm.so.6 ELF 7efee000-7eff4000 Deferred libuuid.so.1 ELF 7eff4000-7f000000 Deferred libnss_nis.so.2 ELF b7411000-b7415000 Deferred libxau.so.6 ELF b7415000-b741e000 Deferred libnss_compat.so.2 ELF b741f000-b7424000 Deferred libdl.so.2 ELF b7424000-b75ca000 Deferred libc.so.6 ELF b75cb000-b75e6000 Deferred libpthread.so.0 ELF b75e9000-b75f2000 Deferred libsm.so.6 ELF b75fa000-b773c000 Dwarf libwine.so.1 ELF b773e000-b7760000 Deferred ld-linux.so.2 ELF b7760000-b7761000 Deferred [vdso].so Threads: process tid prio (all id:s are in hex) 00000008 (D) Z:\opt\limbo\support\limbo\drive_c\Program Files\limbo\limbo.exe 00000009 0 <== 0000000e services.exe 00000020 0 0000001f 0 00000019 0 00000018 0 00000017 0 00000015 0 00000010 0 0000000f 0 00000012 winedevice.exe 0000001d 0 0000001a 0 00000014 0 00000013 0 0000001b plugplay.exe 00000021 0 0000001e 0 0000001c 0 00000022 explorer.exe 00000023 0 System information: Wine build: wine-1.4 Platform: i386 Host system: Linux Host version: 3.2.0-24-generic-pae

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Replacing ASP.NET Forms Authentication with WIF Session Authentication (for the better)

- by Your DisplayName here!

ASP.NET Forms Authentication and WIF Session Authentication (which has *nothing* to do with ASP.NET sessions) are very similar. Both inspect incoming requests for a special cookie that contains identity information, if that cookie is present it gets validated and if that is successful, the identity information is made available to the application via HttpContext.User/Thread.CurrentPrincipal. The main difference between the two is the identity to cookie serialization engine that sits below. Whereas ForsmAuth can only store the name of the user and an additional UserData string. It is limited to a single cookie and hardcoded to protection via the machine key. WIF session authentication in turn has these additional features: Can serialize a complete ClaimsPrincipal (including claims) to the cookie(s). Has a cookie overflow mechanism when data gets too big. In total it can create up to 8 cookies (á 4 KB) per domain (not that I would recommend round tripping that much data). Supports server side caching (which is an extensible mechanism). Has an extensible mechanism for protection (DPAPI by default, RSA as an option for web farms, and machine key based protection is coming in .NET 4.5) So in other words – session authentication is the superior technology, and if done cleverly enough you can replace FormsAuth without any changes to your application code. The only features missing is the redirect mechanism to a login page and an easy to use API to set authentication cookies. But that’s easy to add ;) FormsSessionAuthenticationModule This module is a sub class of the standard WIF session module, adding the following features: Handling EndRequest to do the redirect on 401s to the login page configured for FormsAuth. Reads the FormsAuth cookie name, cookie domain, timeout and require SSL settings to configure the module accordingly. Implements sliding expiration if configured for FormsAuth. It also uses the same algorithm as FormsAuth to calculate when the cookie needs renewal. Implements caching of the principal on the server side (aka session mode) if configured in an AppSetting. Supports claims transformation via a ClaimsAuthenticationManager. As you can see, the whole module is designed to easily replace the FormsAuth mechanism. Simply set the authentication mode to None and register the module. In the spirit of the FormsAuthentication class, there is also now a SessionAuthentication class with the same methods and signatures (e.g. SetAuthCookie and SignOut). The rest of your application code should not be affected. In addition the session module looks for a HttpContext item called “NoRedirect”. If that exists, the redirect to the login page will *not* happen, instead the 401 is passed back to the client. Very useful if you are implementing services or web APIs where you want the actual status code to be preserved. A corresponding UnauthorizedResult is provided that gives you easy access to the context item. The download contains a sample app, the module and an inspector for session cookies and tokens. Let’s hope that in .NET 4.5 such a module comes out of the box. HTH

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PC to USB transfer slow

- by Vipin Ms

I'm having trouble with USB transfer,not with external hard disk. Transfer starts with like, for the transfer of 700MB file it starts with 30mb/s and towards the end it stops at 0s and stays put for like 3-4 mins to transfer the last bit. I have tried different USB devices, but no luck. Is it a bug? Another important point is, in Kubuntu there is no such issue. So is it something related to Gnome? I'm using Ubuntu 11.10 64bit. Somebody please help, it's really annoying. Here are the details. PC all of my drives are in ext4. USB I tried ext3,ntfs and fat32. All having the same problem. Here are my USB controllers details: root@LAB:~# lspci|grep USB 00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03) 00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03) 00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03) 00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03) 00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03) 00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03) 00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03) 00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03) Here is an example of one transfer. I connected one of my 4GB usb device. Nov 24 12:01:25 LAB kernel: [ 1175.082175] userif-2: sent link up event. Nov 24 12:01:25 LAB kernel: [ 1695.684158] usb 2-2: new high speed USB device number 3 using ehci_hcd Nov 24 12:01:25 LAB mtp-probe: checking bus 2, device 3: "/sys/devices/pci0000:00/0000:00:1d.7/usb2/2-2" Nov 24 12:01:26 LAB mtp-probe: bus: 2, device: 3 was not an MTP device Nov 24 12:01:26 LAB kernel: [ 1696.132680] usbcore: registered new interface driver uas Nov 24 12:01:26 LAB kernel: [ 1696.142528] Initializing USB Mass Storage driver... Nov 24 12:01:26 LAB kernel: [ 1696.142919] scsi4 : usb-storage 2-2:1.0 Nov 24 12:01:26 LAB kernel: [ 1696.143146] usbcore: registered new interface driver usb-storage Nov 24 12:01:26 LAB kernel: [ 1696.143150] USB Mass Storage support registered. Nov 24 12:01:27 LAB kernel: [ 1697.141657] scsi 4:0:0:0: Direct-Access SanDisk U3 Cruzer Micro 8.02 PQ: 0 ANSI: 0 CCS Nov 24 12:01:27 LAB kernel: [ 1697.168827] sd 4:0:0:0: Attached scsi generic sg2 type 0 Nov 24 12:01:27 LAB kernel: [ 1697.169262] sd 4:0:0:0: [sdb] 7856127 512-byte logical blocks: (4.02 GB/3.74 GiB) Nov 24 12:01:27 LAB kernel: [ 1697.169762] sd 4:0:0:0: [sdb] Write Protect is off Nov 24 12:01:27 LAB kernel: [ 1697.169767] sd 4:0:0:0: [sdb] Mode Sense: 45 00 00 08 Nov 24 12:01:27 LAB kernel: [ 1697.171386] sd 4:0:0:0: [sdb] No Caching mode page present Nov 24 12:01:27 LAB kernel: [ 1697.171391] sd 4:0:0:0: [sdb] Assuming drive cache: write through Nov 24 12:01:27 LAB kernel: [ 1697.173503] sd 4:0:0:0: [sdb] No Caching mode page present Nov 24 12:01:27 LAB kernel: [ 1697.173510] sd 4:0:0:0: [sdb] Assuming drive cache: write through Nov 24 12:01:27 LAB kernel: [ 1697.175337] sdb: sdb1 After that I initiated one transfer. lsof -p 3575|tail -2 mv 3575 root 3r REG 8,8 1719599104 4325379 /media/Misc/The Tree of Life (2011) DVDRip XviD-MAXSPEED/The Tree of Life (2011) DVDRip XviD-MAXSPEED www.torentz.3xforum.ro.avi mv 3575 root 4w REG 8,17 1046347776 15 /media/SREE/The Tree of Life (2011) DVDRip XviD-MAXSPEED/The Tree of Life (2011) DVDRip XviD-MAXSPEED www.torentz.3xforum.ro.avi Here are the total time spent on that transfer. root@LAB:/media/SREE# time mv /media/Misc/The\ Tree\ of\ Life\ $2011$\ DVDRip\ XviD-MAXSPEED/ /media/SREE/ real 11m49.334s user 0m0.008s sys 0m5.260s root@LAB:/media/SREE# df -T|tail -2 /dev/sdb1 vfat 3918344 1679308 2239036 43% /media/SREE /dev/sda8 ext4 110110576 60096904 50013672 55% /media/Misc Do you think this is normal?? Approximately 12 minutes for 1.6Gb transfer? Thanks.

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SQLAuthority News – Great Time Spent at Great Indian Developers Summit 2014

- by Pinal Dave

The Great Indian Developer Conference (GIDS) is one of the most popular annual event held in Bangalore. This year GIDS is scheduled on April 22, 25. I will be presented total four sessions at this event and each session is very different from each other. Here are the details of four of my sessions, which I presented there. Pluralsight Shades This event was a great event and I had fantastic fun presenting a technology over here. I was indeed very excited that along with me, I had many of my friends presenting at the event as well. I want to thank all of you to attend my session and having standing room every single time. I have already sent resources in my newsletter. You can sign up for the newsletter over here. Indexing is an Art I was amazed with the crowd present in the sessions at GIDS. There was a great interest in the subject of SQL Server and Performance Tuning. Audience at GIDS I believe event like such provides a great platform to meet and share knowledge. Pinal at Pluralsight Booth Here are the abstract of the sessions which I had presented. They were recorded so at some point in time they will be available, but if you want the content of all the courses immediately, I suggest you check out my video courses on the same subject on Pluralsight. Indexes, the Unsung Hero Relevant Pluralsight Course Slow Running Queries are the most common problem that developers face while working with SQL Server. While it is easy to blame SQL Server for unsatisfactory performance, the issue often persists with the way queries have been written, and how Indexes has been set up. The session will focus on the ways of identifying problems that slow down SQL Server, and Indexing tricks to fix them. Developers will walk out with scripts and knowledge that can be applied to their servers, immediately post the session. Indexes are the most crucial objects of the database. They are the first stop for any DBA and Developer when it is about performance tuning. There is a good side as well evil side to indexes. To master the art of performance tuning one has to understand the fundamentals of indexes and the best practices associated with the same. We will cover various aspects of Indexing such as Duplicate Index, Redundant Index, Missing Index as well as best practices around Indexes. SQL Server Performance Troubleshooting: Ancient Problems and Modern Solutions Relevant Pluralsight Course Many believe Performance Tuning and Troubleshooting is an art which has been lost in time. However, truth is that art has evolved with time and there are more tools and techniques to overcome ancient troublesome scenarios. There are three major resources that when bottlenecked creates performance problems: CPU, IO, and Memory. In this session we will focus on High CPU scenarios detection and their resolutions. If time permits we will cover other performance related tips and tricks. At the end of this session, attendees will have a clear idea as well as action items regarding what to do when facing any of the above resource intensive scenarios. Developers will walk out with scripts and knowledge that can be applied to their servers, immediately post the session. To master the art of performance tuning one has to understand the fundamentals of performance, tuning and the best practices associated with the same. We will discuss about performance tuning in this session with the help of Demos. Pinal Dave at GIDS MySQL Performance Tuning – Unexplored Territory Relevant Pluralsight Course Performance is one of the most essential aspects of any application. Everyone wants their server to perform optimally and at the best efficiency. However, not many people talk about MySQL and Performance Tuning as it is an extremely unexplored territory. In this session, we will talk about how we can tune MySQL Performance. We will also try and cover other performance related tips and tricks. At the end of this session, attendees will not only have a clear idea, but also carry home action items regarding what to do when facing any of the above resource intensive scenarios. Developers will walk out with scripts and knowledge that can be applied to their servers, immediately post the session. To master the art of performance tuning one has to understand the fundamentals of performance, tuning and the best practices associated with the same. You will also witness some impressive performance tuning demos in this session. Hidden Secrets and Gems of SQL Server We Bet You Never Knew Relevant Pluralsight Course SQL Trio Session! It really amazes us every time when someone says SQL Server is an easy tool to handle and work with. Microsoft has done an amazing work in making working with complex relational database a breeze for developers and administrators alike. Though it looks like child’s play for some, the realities are far away from this notion. The basics and fundamentals though are simple and uniform across databases, the behavior and understanding the nuts and bolts of SQL Server is something we need to master over a period of time. With a collective experience of more than 30+ years amongst the speakers on databases, we will try to take a unique tour of various aspects of SQL Server and bring to you life lessons learnt from working with SQL Server. We will share some of the trade secrets of performance, configuration, new features, tuning, behaviors, T-SQL practices, common pitfalls, productivity tips on tools and more. This is a highly demo filled session for practical use if you are a SQL Server developer or an Administrator. The speakers will be able to stump you and give you answers on almost everything inside the Relational database called SQL Server. I personally attended the session of Vinod Kumar, Balmukund Lakhani, Abhishek Kumar and my favorite Govind Kanshi. Summary If you have missed this event here are two action items 1) Sign up for Resource Newsletter 2) Watch my video courses on Pluralsight Reference: Pinal Dave (http://blog.sqlauthority.com)Filed under: MySQL, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQLAuthority Author Visit, SQLAuthority News, T SQL Tagged: GIDS

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Integrating Windows Form Click Once Application into SharePoint 2007 – Part 2 of 4

- by Kelly Jones

In my last post, I explained why we decided to use a Click Once application to solve our business problem. To quickly review, we needed a way for our business users to upload documents to a SharePoint 2007 document library in mass, set the meta data, set the permissions per document, and to do so easily. Let’s look at the pieces that make up our solution. First, we have the Windows Form application. This app is deployed using Click Once and calls SharePoint web services in order to upload files and then calls web services to set the meta data (SharePoint columns and permissions). Second, we have a custom action. The custom action is responsible for providing our users a link that will launch the Windows app, as well as passing values to it via the query string. And lastly, we have the web services that the Windows Form application calls. For our solution, we used both out of the box web services and a custom web service in order to set the column values in the document library as well as the permissions on the documents. Now, let’s look at the technical details of each of these pieces. (All of the code is downloadable from here: ) Windows Form application deployed via Click Once The Windows Form application, called “Custom Upload”, has just a few classes in it: Custom Upload -- the form FileList.xsd -- the dataset used to track the names of the files and their meta data values SharePointUpload -- this class handles uploading the file SharePointUpload uses an HttpWebRequest to transfer the file to the web server. We had to change this code from a WebClient object to the HttpWebRequest object, because we needed to be able to set the time out value. public bool UploadDocument(string localFilename, string remoteFilename) { bool result = true; //Need to use an HttpWebRequest object instead of a WebClient object // so we can set the timeout (WebClient doesn't allow you to set the timeout!) HttpWebRequest req = (HttpWebRequest)WebRequest.Create(remoteFilename); try { req.Method = "PUT"; req.Timeout = 60 * 1000; //convert seconds to milliseconds req.AllowWriteStreamBuffering = true; req.Credentials = System.Net.CredentialCache.DefaultCredentials; req.SendChunked = false; req.KeepAlive = true; Stream reqStream = req.GetRequestStream(); FileStream rdr = new FileStream(localFilename, FileMode.Open, FileAccess.Read); byte[] inData = new byte[4096]; int bytesRead = rdr.Read(inData, 0, inData.Length); while (bytesRead > 0) { reqStream.Write(inData, 0, bytesRead); bytesRead = rdr.Read(inData, 0, inData.Length); } reqStream.Close(); rdr.Close(); System.Net.HttpWebResponse response = (HttpWebResponse)req.GetResponse(); if (response.StatusCode != HttpStatusCode.OK && response.StatusCode != HttpStatusCode.Created) { String msg = String.Format("An error occurred while uploading this file: {0}\n\nError response code: {1}", System.IO.Path.GetFileName(localFilename), response.StatusCode.ToString()); LogWarning(msg, "2ACFFCCA-59BA-40c8-A9AB-05FA3331D223"); result = false; } } catch (Exception ex) { LogException(ex, "{E9D62A93-D298-470d-A6BA-19AAB237978A}"); result = false; } return result; } The class also contains the LogException() and LogWarning() methods. When the application is launched, it parses the query string for some initial values. The query string looks like this: string queryString = "Srv=clickonce&Sec=N&Doc=DMI&SiteName=&Speed=128000&Max=50"; This Srv is the path to the server (my Virtual Machine is name “clickonce”), the Sec is short for security – meaning HTTPS or HTTP, the Doc is the shortcut for which document library to use, and SiteName is the name of the SharePoint site. Speed is used to calculate an estimate for download speed for each file. We added this so our users uploading documents would realize how long it might take for clients in remote locations (using slow WAN connections) to download the documents. The last value, Max, is the maximum size that the SharePoint site will allow documents to be. This allowed us to give users a warning that a file is too large before we even attempt to upload it. Another critical piece is the meta data collection. We organized our site using SharePoint content types, so when the app loads, it gets a list of the document library’s content types. The user then select one of the content types from the drop down list, and then we query SharePoint to get a list of the fields that make up that content type. We used both an out of the box web service, and one that we custom built, in order to get these values. Once we have the content type fields, we then add controls to the form. Which type of control we add depends on the data type of the field. (DateTime pickers for date/time fields, etc) We didn’t write code to cover every data type, since we were working with a limited set of content types and field data types. Here’s a screen shot of the Form, before and after someone has selected the content types and our code has added the custom controls: The other piece of meta data we collect is the in the upper right corner of the app, “Users with access”. This box lists the different SharePoint Groups that we have set up and by checking the boxes, the user can set the permissions on the uploaded documents. All of this meta data is collected and submitted to our custom web service, which then sets the values on the documents on the list. We’ll look at these web services in a future post. In the next post, we’ll walk through the Custom Action we built.

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Windows Azure Recipe: Social Web / Big Media

- by Clint Edmonson

With the rise of social media there’s been an explosion of special interest media web sites on the web. From athletics to board games to funny animal behaviors, you can bet there’s a group of people somewhere on the web talking about it. Social media sites allow us to interact, share experiences, and bond with like minded enthusiasts around the globe. And through the power of software, we can follow trends in these unique domains in real time. Drivers Reach Scalability Media hosting Global distribution Solution Here’s a sketch of how a social media application might be built out on Windows Azure: Ingredients Traffic Manager (optional) – can be used to provide hosting and load balancing across different instances and/or data centers. Perfect if the solution needs to be delivered to different cultures or regions around the world. Access Control – this service is essential to managing user identity. It’s backed by a full blown implementation of Active Directory and allows the definition and management of users, groups, and roles. A pre-built ASP.NET membership provider is included in the training kit to leverage this capability but it’s also flexible enough to be combined with external Identity providers including Windows LiveID, Google, Yahoo!, and Facebook. The provider model has extensibility points to hook into other identity providers as well. Web Role – hosts the core of the web application and presents a central social hub users. Database – used to store core operational, functional, and workflow data for the solution’s web services. Caching (optional) – as a web site traffic grows caching can be leveraged to keep frequently used read-only, user specific, and application resource data in a high-speed distributed in-memory for faster response times and ultimately higher scalability without spinning up more web and worker roles. It includes a token based security model that works alongside the Access Control service. Tables (optional) – for semi-structured data streams that don’t need relational integrity such as conversations, comments, or activity streams, tables provide a faster and more flexible way to store this kind of historical data. Blobs (optional) – users may be creating or uploading large volumes of heterogeneous data such as documents or rich media. Blob storage provides a scalable, resilient way to store terabytes of user data. The storage facilities can also integrate with the Access Control service to ensure users’ data is delivered securely. Content Delivery Network (CDN) (optional) – for sites that service users around the globe, the CDN is an extension to blob storage that, when enabled, will automatically cache frequently accessed blobs and static site content at edge data centers around the world. The data can be delivered statically or streamed in the case of rich media content. Training These links point to online Windows Azure training labs and resources where you can learn more about the individual ingredients described above. (Note: The entire Windows Azure Training Kit can also be downloaded for offline use.) Windows Azure (16 labs) Windows Azure is an internet-scale cloud computing and services platform hosted in Microsoft data centers, which provides an operating system and a set of developer services which can be used individually or together. It gives developers the choice to build web applications; applications running on connected devices, PCs, or servers; or hybrid solutions offering the best of both worlds. New or enhanced applications can be built using existing skills with the Visual Studio development environment and the .NET Framework. With its standards-based and interoperable approach, the services platform supports multiple internet protocols, including HTTP, REST, SOAP, and plain XML SQL Azure (7 labs) Microsoft SQL Azure delivers on the Microsoft Data Platform vision of extending the SQL Server capabilities to the cloud as web-based services, enabling you to store structured, semi-structured, and unstructured data. Windows Azure Services (9 labs) As applications collaborate across organizational boundaries, ensuring secure transactions across disparate security domains is crucial but difficult to implement. Windows Azure Services provides hosted authentication and access control using powerful, secure, standards-based infrastructure. See my Windows Azure Resource Guide for more guidance on how to get started, including links web portals, training kits, samples, and blogs related to Windows Azure.

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CacheAdapter 2.4 – Bug fixes and minor functional update

- by Glav

Note: If you are unfamiliar with the CacheAdapter library and what it does, you can read all about its awesome ability to utilise memory, Asp.Net Web, Windows Azure AppFabric and memcached caching implementations via a single unified, simple to use API from here and here.. The CacheAdapter library is receiving an update to version 2.4 and is currently available on Nuget here. Update: The CacheAdapter has actualy just had a minor revision to 2.4.1. This significantly increases the performance and reliability in memcached scenario under more extreme loads. General to moderate usage wont see any noticeable difference though. Bugs This latest version fixes a big that is only present in the memcached implementation and is only seen in rare, intermittent times (making i particularly hard to find). The bug is where a cache node would be removed from the farm when errors in deserialization of cached objects would occur due to serialised data not being read from the stream in entirety. The code also contains enhancements to better surface serialization exceptions to aid in the debugging process. This is also specifically targeted at the memcached implementation. This is important when moving from something like memory or Asp.Web caching mechanisms to memcached where the serialization rules are not as lenient. There are a few other minor bug fixes, code cleanup and a little refactoring. Minor feature addition In addition to this bug fix, many people have asked for a single setting to either enable or disable the cache.In this version, you can disable the cache by setting the IsCacheEnabled flag to false in the application configuration file. Something like the example below: <Glav.CacheAdapter.MainConfig> <setting name="CacheToUse" serializeAs="String"> <value>memcached</value> </setting> <setting name="DistributedCacheServers" serializeAs="String"> <value>localhost:11211</value> </setting> <setting name="IsCacheEnabled" serializeAs="String"> <value>False</value> </setting> </Glav.CacheAdapter.MainConfig> Your reasons to use this feature may vary (perhaps some performance testing or problem diagnosis). At any rate, disabling the cache will cause every attempt to retrieve data from the cache, resulting in a cache miss and returning null. If you are using the ICacheProvider with the delegate/Func<T> syntax to populate the cache, this delegate method will get executed every single time. For example, when the cache is disabled, the following delegate/Func<T> code will be executed every time: var data1 = cacheProvider.Get<SomeData>("cache-key", DateTime.Now.AddHours(1), () => { // With the cache disabled, this data access code is executed every attempt to // get this data via the CacheProvider. var someData = new SomeData() { SomeText = "cache example1", SomeNumber = 1 }; return someData; }); One final note: If you access the cache directly via the ICache instance, instead of the higher level ICacheProvider API, you bypass this setting and still access the underlying cache implementation. Only the ICacheProvider instance observes the IsCacheEnabled setting. Thanks to those individuals who have used this library and provided feedback. Ifyou have any suggestions or ideas, please submit them to the issue register on bitbucket (which is where you can grab all the source code from too)

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Loosely Coupled Tabs in Java Editor

- by Geertjan

One of the NetBeans Platform 7.1 API enhancements is the @MultiViewElement.Registration annotation. That lets you add a new tab to any existing NetBeans editor. Really powerful since I didn't need to change the sources (or even look at the sources) of the Java editor to add the "Visualizer" tab to it, as shown below: Right now, the tab doesn't show anything, that will come in the next blog entry. The point here is to show how to set things up so that you have a new tab in the Java editor, without needing to touch any of the NetBeans IDE sources: And here's the code, take note of the annotation, which registers the JPanel for the "text/x-java" MIME type: import javax.swing.Action; import javax.swing.JComponent; import javax.swing.JPanel; import javax.swing.JToolBar; import org.netbeans.core.spi.multiview.CloseOperationState; import org.netbeans.core.spi.multiview.MultiViewElement; import org.netbeans.core.spi.multiview.MultiViewElementCallback; import org.openide.awt.UndoRedo; import org.openide.loaders.DataObject; import org.openide.util.Lookup; import org.openide.util.NbBundle; import org.openide.windows.TopComponent; @MultiViewElement.Registration(displayName = "#LBL_Visualizer", iconBase = "org/java/vis/icon.gif", mimeType = "text/x-java", persistenceType = TopComponent.PERSISTENCE_NEVER, preferredID = "JavaVisualizer", position = 3000) @NbBundle.Messages({ "LBL_Visualizer=Visualizer" }) public class JavaVisualizer extends JPanel implements MultiViewElement { private JToolBar toolbar = new JToolBar(); private DataObject obj; private MultiViewElementCallback mvec; public JavaVisualizer(Lookup lkp) { obj = lkp.lookup(DataObject.class); assert obj != null; } @Override public JComponent getVisualRepresentation() { return this; } @Override public JComponent getToolbarRepresentation() { return toolbar; } @Override public Action[] getActions() { return new Action[0]; } @Override public Lookup getLookup() { return obj.getLookup(); } @Override public void componentOpened() { } @Override public void componentClosed() { } @Override public void componentShowing() { } @Override public void componentHidden() { } @Override public void componentActivated() { } @Override public void componentDeactivated() { } @Override public UndoRedo getUndoRedo() { return UndoRedo.NONE; } @Override public void setMultiViewCallback(MultiViewElementCallback mvec) { this.mvec = mvec; } @Override public CloseOperationState canCloseElement() { return CloseOperationState.STATE_OK; } } It's a fair amount of code, but mostly pretty self-explanatory. The loosely coupled tabs are applicable to all NetBeans editors, not just the Java editor, which is why the "History" tab is now available to all editors throughout NetBeans IDE. In the next blog entry, you'll see the integration of the Visual Library into the panel I embedded in the Java editor.

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Implement Tree/Details With Taskflow Regions Using EJB

- by Deepak Siddappa

This article describes on Display Tree/Details using taskflow regions.Use Case DescriptionLet us take scenario where we need to display Tree/Details, left region contains category hierarchy with items listed in a tree structure (ex:- Region-Countries-Locations-Departments in tree format) and right region contains the Employees list.In detail, Here User may drills down through categories using a tree until Employees are listed. Clicking the tree node name displays Employee list in the adjacent pane related to particular tree node. Implementation StepsThe script for creating the tables and inserting the data required for this application CreateSchema.sql Lets create a Java EE Web Application with Entities based on Regions, Countries, Locations, Departments and Employees table. Create a Stateless Session Bean and data control for the Stateless Session Bean. Add the below code to the session bean and expose the method in local/remote interface and generate a data control for that.Note:- Here in the below code "em" is a EntityManager. public List<Employees> empFilteredByTreeNode(String treeNodeType, String paramValue) { String queryString = null; try { if (treeNodeType == "null") { queryString = "select * from Employees emp ORDER BY emp.employee_id ASC"; } else if (Pattern.matches("[a-zA-Z]+[_]+[a-zA-Z]+[_]+[[0-9]+]+", treeNodeType)) { queryString = "select * from employees emp INNER JOIN departments dept\n" + "ON emp.department_id = dept.department_id JOIN locations loc\n" + "ON dept.location_id = loc.location_id JOIN countries cont\n" + "ON loc.country_id = cont.country_id JOIN regions reg\n" + "ON cont.region_id = reg.region_id and reg.region_name = '" + paramValue + "' ORDER BY emp.employee_id ASC"; } else if (treeNodeType.contains("regionsFindAll_bc_countriesList_1")) { queryString = "select * from employees emp INNER JOIN departments dept \n" + "ON emp.department_id = dept.department_id JOIN locations loc \n" + "ON dept.location_id = loc.location_id JOIN countries cont \n" + "ON loc.country_id = cont.country_id and cont.country_name = '" + paramValue + "' ORDER BY emp.employee_id ASC"; } else if (treeNodeType.contains("regionsFindAll_bc_locationsList_1")) { queryString = "select * from employees emp INNER JOIN departments dept ON emp.department_id = dept.department_id JOIN locations loc ON dept.location_id = loc.location_id and loc.city = '" + paramValue + "' ORDER BY emp.employee_id ASC"; } else if (treeNodeType.trim().contains("regionsFindAll_bc_departmentsList_1")) { queryString = "select * from Employees emp INNER JOIN Departments dept ON emp.DEPARTMENT_ID = dept.DEPARTMENT_ID and dept.DEPARTMENT_NAME = '" + paramValue + "'"; } } catch (NullPointerException e) { System.out.println(e.getMessage()); } return em.createNativeQuery(queryString, Employees.class).getResultList(); } In the ViewController project, create two ADF taskflow with page Fragments and name them as FirstTaskflow and SecondTaskflow respectively. Open FirstTaskflow,from component palette drop view(Page Fragment) name it as TreeList.jsff. Open SeconfTaskflow, from component palette drop view(Page Fragment) name it as EmpList.jsff and create two paramters in its overview parameters tab as shown in below image. Open TreeList.jsff , from data control palette drop regionsFindAll->Tree as ADF Tree. In Edit Tree Binding dialog, for Tree Level Rules select the display attributes as follows:-model.Regions - regionNamemodel.Countries - countryNamemodel.Locations - citymodel.Departments - departmentName In structure panel, click on af:Tree - t1 and select selectionListener with edit property. Create a "TreeBean" managed bean with scope as "session" as shown in below Image. Create new method as getTreeNodeSelectedValue and click ok. Open TreeBean managed bean and add the below code: private String treeNodeType; private String paramValue; public void getTreeNodeSelectedValue(SelectionEvent selectionEvent) { RichTree tree = (RichTree)selectionEvent.getSource(); RowKeySet addedSet = selectionEvent.getAddedSet(); Iterator i = addedSet.iterator(); TreeModel model = (TreeModel)tree.getValue(); model.setRowKey(i.next()); JUCtrlHierNodeBinding node = (JUCtrlHierNodeBinding)tree.getRowData(); //oracle.jbo.Row Row rw = node.getRow(); Object selectedTreeNode = node.getAttribute(0); Object treeListType = node.getBindings(); String treeNodeType = treeListType.toString(); this.setParamValue(selectedTreeNode.toString()); this.setTreeNodeType(treeNodeType); } public void setTreeNodeType(String treeNodeType) { this.treeNodeType = treeNodeType; } public String getTreeNodeType() { return treeNodeType; } public void setParamValue(String paramValue) { this.paramValue = paramValue; } public String getParamValue() { return paramValue; }<br /> Open EmpList.jsff , from data control palette drop empFilteredByTreeNode->Employees->Table as ADF Read-only Table. After selecting the Employees result set, in Edit Action Binding dialog window pass the pageFlowScope parameters as shown in below Image. In empList.jsff page, click Binding tab and click on Create Executable binding and select Invoke action and follow as shown in below image. Edit executeEmpFiltered invoke action properties and set the Refresh to ifNeeded, So when ever the page needs the method will be executed. Create Main.jspx page with page template as Oracle Three Column Layout. Drop FirstTaskflow as Region in start facet and drop SecondTaskflow as Region in center facet, Edit task Flow Binding dialog window pass the Input Paramters as shown in below Image. Run the Main.jspx, tree will be displayed in left region and emp details will displyaed on the right region. Click on the Americas in tree node, all emp related to the Americas related will be displayed. Click on Americas->United States of America->South San Francisco->Accounting, only employee belongs to the Accounting department will be displayed.

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