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• How to build Lucene / Solr from source code in windows environment in order to add patches

  - by Simon

  I have successfully implemented Apache’s Solr for free text searching a database driven web site build for windows platforms using Visual Studio in c#. I am trying to get a version Solr working with field collapsing (which is not in the release version). There are patches available from apache and discussions on the web of people successfully doing this for the version I am using but my problem is cannot get the build to work. I am a c# coder on windows platforms so java development is new to me. I understand I need to get the correct source code (and revision) from SVN, add the appropriate patches, then build the war file to deploy to my system. I cannot seem to get the source to build and produce the deployment code including jar (and subsequent war) files. My system is: Windows 7 Ultimate for development Visual Studio 2010 for c# / javascript development MyEclipse 8.6 / Eclipse 3.5 for the java build from source Subecplise 1.6x SVN plugin to get the source from apache’s SVN Apache Solr 1.4.1 So far I have: Found the right patches for the function I need: https://issues.apache.org/jira/browse/SOLR-236 Specifically I need to patch: field_collapsing_1.1.0.patch HTTPS //issues.apache.org/jira/secure/attachment/12357681/field_collapsing_1.1.0.patch and SOLR-236-1_4_1.patch HTTPS //issues.apache.org/jira/secure/attachment/12448216/SOLR-236-1_4_1.patch I downloaded the Lucene trunk version from the day before the patch was released (revision 958303 from 28/6/10) via subeclipse into a java package in myeclipse from: HTTPS //svn.apache.org/repos/asf/lucene/dev/trunk (Solr is the web implementation of Lucene and is in the subfolder solr/) I can apply patches to the solr directory once it has downloaded but the parent Lucene project doesn’t build the war files, copy the jar or other files into the bin folder (it stays empty). The build process starts, but doesn’t do anything apart from creating the folders bin and src. I am building the whole Lucene project, which contains Solr. I have tried building the source without patching and the same happens. If I copy out the Solr directory into a new project, it runs the build and copies all the related files, tests, etc but fails with 4,500 errors and does not produce the jar files or war file, which I assume is because it can’t find the Lucene trunk files which it depends on. I have two interrelated problems 1) I can't get the Lucene downloaded trunk to build 2) The jar, war and associated files are not created Can anyone help with what I am missing to build the war file? I have spent 2 days to get this far as the help online is extremely patchy and I can’t find a walk though tutorial on building a java war file from source in a windows environment. Any help will be much appreciated. Simon

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• Starting ActiveMQ message listener in Tomcat?

  - by Nick Swarr

  I've created an ActiveMQ MessageListener and configured it using Spring. I'm hosting the listener in Tomcat. When I start up the web application (that features only the listener), should the listener automatically start? Or do I need additional configuration? Here's what I have. First, updated the web.xml to allow spring to configure itself on startup, <?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/classes/spring/applicationContext.xml</param-value> </context-param> </web-app> Then I created the applicationContext.xml to configure the ActiveMQ listener, <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:amq="http://activemq.apache.org/schema/core" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <context:annotation-config /> <context:component-scan base-package="com.somepackage"/> <context:property-placeholder location="classpath:env.properties"/> <bean id="jmsFactory" class="org.apache.activemq.ActiveMQConnectionFactory"> <property name="brokerURL" value="tcp://localhost:61616" /> </bean> <bean id="documentListener" class="com.somepackage.SomeListener" /> <bean id="container" class="org.springframework.jms.listener.DefaultMessageListenerContainer"> <property name="connectionFactory" ref="cachingConnectionFactory"/> <property name="messageListener" ref="documentListener"/> <property name="destinationName" value="STOCKS.MSFT" /> </bean> <bean id="cachingConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory"> <property name="targetConnectionFactory" ref="jmsFactory" /> <property name="sessionCacheSize" value="1" /> </bean> </beans> And that's it. Based on what I've seen around the web, I can't tell if that's all I need? Maybe I need some other configuration in Tomcat to kick off the listener?

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• Custom Monitor Resolution not recognized by Java

  - by Angie

  My weird monitor's native resolution isn't recognized by Windows, so I have to set a custom resolution for it. The problem is that java doesn't recognize it since it's not on Win7's "approved" list, so full-screen mode gets "stuck". Netbeans comes out of full-screen fine, so there has to be a way around this. Anyone know it? This example reproduces the issue: package resolutionexample; import java.awt.Dimension; import java.awt.DisplayMode; import java.awt.GraphicsDevice; import java.awt.GraphicsEnvironment; import javax.swing.JFrame; import javax.swing.SwingUtilities; public class Main { public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable(){ public void run() { GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); GraphicsDevice gd = ge.getDefaultScreenDevice(); DisplayMode currentDM = gd.getDisplayMode(); boolean currentInAvailable = false; System.out.println("Available resolutions:"); for ( DisplayMode availDM : gd.getDisplayModes() ){ //System.out.println(availDM.getWidth() + "x" + availDM.getHeight()); if ( availDM.equals(currentDM) ){ currentInAvailable = true; } } System.out.println("Current resolution: " + currentDM.getWidth() + "x" + currentDM.getHeight() ); System.out.println("Current in available: " + currentInAvailable); JFrame frame = new JFrame("Resolution Bug Example"); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); if ( !gd.isFullScreenSupported() ){System.exit(0);} gd.setFullScreenWindow(frame); gd.setFullScreenWindow(null); } }); } } Output running 1680x1050 (the monitor's wonky native resolution): run: Available resolutions: Current resolution: 1680x1050 Current in available: false Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: Invalid display mode at sun.awt.Win32GraphicsDevice.setDisplayMode(Win32GraphicsDevice.java:393) at sun.awt.Win32GraphicsDevice.setFullScreenWindow(Win32GraphicsDevice.java:329) at resolutionexample.Main$1.run(Main.java:43) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:597) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122) BUILD SUCCESSFUL (total time: 2 seconds) Output if I set my resolution to 1024x768 before running: run: Available resolutions: Current resolution: 1024x768 Current in available: true BUILD SUCCESSFUL (total time: 2 seconds)

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• fileToSTring keeps on returning " "

  - by karikari

  I managed to get this code to compile with out error. But somehow it did not return the strings that I wrote inside file1.txt and file.txt that I pass its path through str1 and str2. My objective is to use this open source library to measure the similarity between strings contains inside 2 text files. Inside the its Javadoc, its states that ... public static java.lang.StringBuffer fileToString(java.io.File f) private call to load a file and return its content as a string. Parameters: f - a file for which to load its content Returns: a string containing the files contents or "" if empty or not present Here's is my modified code trying to use the FileLoader function, but fails to return the strings inside the file. The end result keeps on returning me the "" . I do not know where is my fault: package uk.ac.shef.wit.simmetrics; import java.io.File; import uk.ac.shef.wit.simmetrics.similaritymetrics.*; import uk.ac.shef.wit.simmetrics.utils.*; public class SimpleExample { public static void main(final String[] args) { if(args.length != 2) { usage(); } else { String str1 = "arg[0]"; String str2 = "arg[1]"; File objFile1 = new File(str1); File objFile2 = new File(str2); FileLoader obj1 = new FileLoader(); FileLoader obj2 = new FileLoader(); str1 = obj1.fileToString(objFile1).toString(); str2 = obj2.fileToString(objFile2).toString(); System.out.println(str1); System.out.println(str2); AbstractStringMetric metric = new MongeElkan(); //this single line performs the similarity test float result = metric.getSimilarity(str1, str2); //outputs the results outputResult(result, metric, str1, str2); } } private static void outputResult(final float result, final AbstractStringMetric metric, final String str1, final String str2) { System.out.println("Using Metric " + metric.getShortDescriptionString() + " on strings \"" + str1 + "\" & \"" + str2 + "\" gives a similarity score of " + result); } private static void usage() { System.out.println("Performs a rudimentary string metric comparison from the arguments given.\n\tArgs:\n\t\t1) String1 to compare\n\t\t2)String2 to compare\n\n\tReturns:\n\t\tA standard output (command line of the similarity metric with the given test strings, for more details of this simple class please see the SimpleExample.java source file)"); } }

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• What Can I Do To One Of My Team Number (Good Friend As Well) Who Lost His Passion.

  - by skyflyer

  It seems this question is not program related, but there are lot of similar questions. So please bear with me! By the way, I am programmer and my team is also charging a software project. And SO is the only place which solved me lot of thorny troubles!THANK YOU GUYS! I joined my company with him years ago. At that time he was quite passionate on his job which is a front-end development. He gave us lot of useful suggestions concerning his work like design. And I believed he was a smart guy. I believe he still is smart too by the way. One years later, however, he seemed lost his passion and fooling around every day, did not care about his work any more and produced poorwork. Even worse he literally stopped learning new skills and honing his work related skills. For me it is horrible, we got to keep abreast with new technology development, otherwise we will be throw out. Since we were just coworkers, I did not care about it too much except mentioned my thoughts several times. But last month, we resembled a new group and assigned very important project. And I am the team leader, sadly! My boss gave me lot of support and expectation as well. I did a pretty good job before and I am very optimism to our future. But as a team, if my team does not work hard, we will be doomed to failure no matter how hard I work and push. In order to revitalize his passion, I tried couple of ways like talking to him about my concern and my boss's angry. I offered his new task which is quite new to him. I even persuaded my boss to give him new incentive package. But all of them knocked wall. His reaction was just he did not care. Even worse he did not want to talk about his situation. I want to be hard on him, but since we are friends and coworkers, I really can not see it will work. Even it works, I can not so quickly change my self from friend and coworker into manager. As a novice in management, I am really overwhelmed! I do not want get him fired, we are friends and I do not see him fired as my team number. What can I do? Thank you guys!

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• [NEWVERSION]algorithm || method to write prog[UNSOLVED] [closed]

  - by fatai

  I am one of the computer science student. Everyone solve problem with a different or same method, ( but actually I dont know whether they use method or I dont know whether there are such common method to approach problem.) if there are common method, What is it ? If there are different method, which method are you using ? All teacher give us problem which in simple form sometimes, but they donot introduce any approach or method(s) so that we cannot make a decision to choose the method then apply that one to problem , afterward find solution then write code.No help from teacher , push us to find method to solve homework. Ex: my friend is using no method , he says "I start to construct algorithm while I try to write prog." I have found one method when I failed the course, More accurately, my method: When I counter problem in language , I will get more paper and then ; first, input/ output step ; my prog will take this / these there argument(s) and return namely X , ex : in c, input length is not known and at same type , so I must use pointer desired output is in form of package , so use structure second, execution part ; in that step , I am writing all step which are goes to final output ex : in python ; 1.) [ + , [- , 4 , [ * , 1 , 2 ]], 5] 2.) [ + , [- , 4 , 2 ],5 ] 3.) [ + , 2 , 5] 4.) 7 ==> return 7 third, I will write test code ex : in c++ input : append 3 4 5 6 vector_x remove 0 1 desired output vector_x holds : 5 6 now, my other question is ; What is/are other method(s) which have/has been; used to construct class :::: for c++ , python, java used to communicate classes / computers used for solving embedded system problem ::::: for c by other user? Some programmer uses generalized method without considering prog-language(java , perl .. ), what is this method ? Why I wonder , because I learn if you dont costruct algorithm on paper, you may achieve your goal. Like no money no lunch , I can say no algorithm no prog therefore , feel free when you write your own method , a way which is introduced by someone else but you are using and you find it is so efficient

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• How do you implement position-sensitive zooming inside a JScrollPane?

  - by tucuxi

  I am trying to implement position-sensitive zooming inside a JScrollPane. The JScrollPane contains a component with a customized 'paint' that will draw itself inside whatever space it is allocated - so zooming is as easy as using a MouseWheelListener that resizes the inner component as required. But I also want zooming into (or out of) a point to keep that point as central as possible within the resulting zoomed-in (or -out) view (this is what I refer to as 'position-sensitive' zooming), similar to how zooming works in google maps. I am sure this has been done many times before - does anybody know the "right" way to do it under Java Swing?. Would it be better to play with Graphic2D's transformations instead of using JScrollPanes? Sample code follows: package test; import java.awt.*; import java.awt.event.*; import java.awt.geom.*; import javax.swing.*; public class FPanel extends javax.swing.JPanel { private Dimension preferredSize = new Dimension(400, 400); private Rectangle2D[] rects = new Rectangle2D[50]; public static void main(String[] args) { JFrame jf = new JFrame("test"); jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jf.setSize(400, 400); jf.add(new JScrollPane(new FPanel())); jf.setVisible(true); } public FPanel() { // generate rectangles with pseudo-random coords for (int i=0; i<rects.length; i++) { rects[i] = new Rectangle2D.Double( Math.random()*.8, Math.random()*.8, Math.random()*.2, Math.random()*.2); } // mouse listener to detect scrollwheel events addMouseWheelListener(new MouseWheelListener() { public void mouseWheelMoved(MouseWheelEvent e) { updatePreferredSize(e.getWheelRotation(), e.getPoint()); } }); } private void updatePreferredSize(int n, Point p) { double d = (double) n * 1.08; d = (n > 0) ? 1 / d : -d; int w = (int) (getWidth() * d); int h = (int) (getHeight() * d); preferredSize.setSize(w, h); getParent().doLayout(); // Question: how do I keep 'p' centered in the resulting view? } public Dimension getPreferredSize() { return preferredSize; } private Rectangle2D r = new Rectangle2D.Float(); public void paint(Graphics g) { super.paint(g); g.setColor(Color.red); int w = getWidth(); int h = getHeight(); for (Rectangle2D rect : rects) { r.setRect(rect.getX() * w, rect.getY() * h, rect.getWidth() * w, rect.getHeight() * h); ((Graphics2D)g).draw(r); } } }

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• Can't find method in the activity

  - by Synesso

  I'm starting with Scala + Android. I'm trying to wire a button action to a button without the activity implementing View.OnClickListener. The button click fails at runtime because the method cannot be found. The document I'm working through says that I need only declare a public void method taking a View on the action, and use that method name in the layout. What have I done wrong? MainActivity.scala package net.badgerhunt.hwa import android.app.Activity import android.os.Bundle import android.widget.Button import android.view.View import java.util.Date class MainActivity extends Activity { override def onCreate(savedInstanceState: Bundle) = { super.onCreate(savedInstanceState) setContentView(R.layout.main) } def calculate(button: View): Unit = println("calculating with %s ...".format(button)) } res/layout/main.xml <?xml version="1.0" encoding="utf-8"?> <Button xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/button" android:text="" android:onClick="calculate" android:layout_width="fill_parent" android:layout_height="fill_parent"/> the failure onclick D/AndroidRuntime( 362): Shutting down VM W/dalvikvm( 362): threadid=3: thread exiting with uncaught exception (group=0x4001b188) E/AndroidRuntime( 362): Uncaught handler: thread main exiting due to uncaught exception E/AndroidRuntime( 362): java.lang.IllegalStateException: Could not find a method calculate(View) in the activity E/AndroidRuntime( 362): at android.view.View$1.onClick(View.java:2020) E/AndroidRuntime( 362): at android.view.View.performClick(View.java:2364) E/AndroidRuntime( 362): at android.view.View.onTouchEvent(View.java:4179) E/AndroidRuntime( 362): at android.widget.TextView.onTouchEvent(TextView.java:6540) E/AndroidRuntime( 362): at android.view.View.dispatchTouchEvent(View.java:3709) E/AndroidRuntime( 362): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) E/AndroidRuntime( 362): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) E/AndroidRuntime( 362): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) E/AndroidRuntime( 362): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659) E/AndroidRuntime( 362): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107) E/AndroidRuntime( 362): at android.app.Activity.dispatchTouchEvent(Activity.java:2061) E/AndroidRuntime( 362): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643) E/AndroidRuntime( 362): at android.view.ViewRoot.handleMessage(ViewRoot.java:1691) E/AndroidRuntime( 362): at android.os.Handler.dispatchMessage(Handler.java:99) E/AndroidRuntime( 362): at android.os.Looper.loop(Looper.java:123) E/AndroidRuntime( 362): at android.app.ActivityThread.main(ActivityThread.java:4363) E/AndroidRuntime( 362): at java.lang.reflect.Method.invokeNative(Native Method) E/AndroidRuntime( 362): at java.lang.reflect.Method.invoke(Method.java:521) E/AndroidRuntime( 362): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) E/AndroidRuntime( 362): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) E/AndroidRuntime( 362): at dalvik.system.NativeStart.main(Native Method) E/AndroidRuntime( 362): Caused by: java.lang.NoSuchMethodException: calculate E/AndroidRuntime( 362): at java.lang.ClassCache.findMethodByName(ClassCache.java:308) E/AndroidRuntime( 362): at java.lang.Class.getMethod(Class.java:1014) E/AndroidRuntime( 362): at android.view.View$1.onClick(View.java:2017) E/AndroidRuntime( 362): ... 20 more

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• Single console in eclipse for both Server and Client

  - by rits

  I am building a client server application using Java Sockets (in Windows XP). For that I need different consoles for both Client and Server(for Input and Output operations). But in eclipse both share a single console. Is there any plugin or some sort of cheat through which I can do this. After googling I got this, http://dev.eclipse.org/newslists/news.eclipse.newcomer/msg17138.html But, this seems to be only for write operations, not read operations. Also, I tried the following to launch application manually, but even this is not working........ package mypack; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.io.PrintStream; public class MySystem { public static void changeStream(String mainFile) throws IOException{ File temp = new File(".") ; String parentPath = temp.getCanonicalPath() ; System.out.println(parentPath); //creation of batch file starts here try{ File f = new File(parentPath + "\\a.bat") ; System.out.println("Created : " + f.createNewFile()); //f.deleteOnExit() ; FileOutputStream fos = new FileOutputStream(f) ; String str = "java " + mainFile ; String batchCommand="@echo off\n"+str+"\npause\nexit"; char arr[] = batchCommand.toCharArray() ; System.out.println(str) ; for(int i = 0 ; i < arr.length ; i++){ fos.write(arr[i]) ; } fos.close() ; } catch(Exception e){ } //creation of batch file ends here //execution of batch file starts here try{ Runtime r = Runtime.getRuntime() ; System.out.println(parentPath + "\\a.bat") ; Process p = r.exec(new String[]{"cmd","/k","start a.bat"},null,new File(parentPath)) ; OutputStream os = (OutputStream)p.getOutputStream() ; System.setOut( new PrintStream(os) ) ; System.out.println("Hello"); } catch(Exception e){ e.printStackTrace(); } //execution of batch file ends here } public static void main(String[] args) throws IOException { MySystem.changeStream("MySystem") ; } }

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• Loading a SWF dynamically causes previously loaded SWFs to misbehave

  - by Aaron

  I have run into a very strange problem with Flash and Flex. It appears that under certain circumstances, movie clips from a SWF loaded at runtime (using Loader) cannot be instantiated if another SWF has been loaded in the mean time. Here is the complete code for a program that reproduces the error. It is compiled using mxmlc, via Ensemble Tofino: package { import flash.display.*; import flash.events.*; import flash.net.*; import flash.system.*; public class DynamicLoading extends Sprite { private var testAppDomain:ApplicationDomain; public function DynamicLoading() { var request:URLRequest = new URLRequest("http://localhost/content/test.swf"); var loader:Loader = new Loader(); loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onTestLoadComplete); loader.load(request); } private function onTestLoadComplete(e:Event):void { var loaderInfo:LoaderInfo = LoaderInfo(e.target); testAppDomain = loaderInfo.applicationDomain; // To get the error, uncomment these lines... //var request:URLRequest = new URLRequest("http://localhost/content/tiny.swf"); //var loader:Loader = new Loader(); //loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onTinyLoadComplete); //loader.load(request); // ...and comment this one: onTinyLoadComplete(); } private function onTinyLoadComplete(e:Event = null):void { var spriteClass:Class = Class(testAppDomain.getDefinition("TopSymbol")); var sprite:Sprite = Sprite(new spriteClass()); sprite.x = sprite.y = 200; addChild(sprite); } } } With the second loading operation commented out as shown above, the code works. However, if the second loading operation is uncommented and onTinyLoadComplete runs after the second SWF is loaded, the line containing new spriteClass() fails with the following exception: TypeError: Error #1034: Type Coercion failed: cannot convert flash.display::MovieClip@2dc8ba1 to SubSymbol. at flash.display::Sprite/constructChildren() at flash.display::Sprite() at flash.display::MovieClip() at TopSymbol() at DynamicLoading/onTinyLoadComplete()[C:\Users\...\TestFlash\DynamicLoading.as:38] test.swf and tiny.swf were created in Flash CS4. test.swf contains two symbols, both exported for ActionScript, one called TopSymbol and one called SubSymbol. SubSymbol contains a simple graphic (a scribble) and TopSymbol contains a single instance of SubSymbol. tiny.swf contains nothing; it is the result of publishing a new, empty ActionScript 3 project. If I modify test.swf so that SubSymbol is not exported for ActionScript, the error goes away, but in our real project we need the ability to dynamically load sprite classes that contain other, exported sprite classes as children. Any ideas as to what is causing this, or how to fix it?

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• Problem accessing updated variables within OnTouch

  - by Jay Smith

  I have an OnTouch and a setOnTouchListener that updates varibles which contain screen coord info. The problem is it doesnt seem to ever update them. On line 78, RGB.setText(test); it never changes from 0.0. If i were to move that line and the line above it into the onTouch it updates. any idea what is wrong? Thank you. package com.evankimia.huskybus; import com.test.huskybus.R; import android.app.Activity; import android.os.Bundle; import android.view.MotionEvent; import android.view.View; import android.view.View.OnTouchListener; import android.widget.TextView; public class HuskyBus extends Activity { TextView RGB; private CampusMap mCampusMap; private float startX = 0; //track x from one ACTION_MOVE to the next private float startY = 0; //track y from one ACTION_MOVE to the next float scrollByX = 0; //x amount to scroll by float scrollByY = 0; //y amount to scroll by /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); RGB = (TextView) findViewById(R.id.coordBox); mCampusMap = (CampusMap) findViewById(R.id.map); mCampusMap.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { // TODO Auto-generated method stub switch (event.getAction()) { case MotionEvent.ACTION_DOWN: // Remember our initial down event location. startX = event.getRawX(); startY = event.getRawY(); break; case MotionEvent.ACTION_MOVE: float x = event.getRawX(); float y = event.getRawY(); // Calculate move update. This will happen many times // during the course of a single movement gesture. scrollByX = x - startX; //move update x increment scrollByY = y - startY; //move update y increment startX = x; //reset initial values to latest startY = y; mCampusMap.invalidate(); break; }//end switch return false; } ; }); //end onDraw? String test = "" + scrollByX; RGB.setText(test); } }

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• Resize image while rotating image in android

  - by dhams

  Hi every one ,,m working with android project in which i want to rotate image along with touch to some fix pivot point ,,,i have completed all the things but i have facing one problem ,,,while m trying to rotate image the image bitmap is resize....i dont have any idea why it occur ....if somebody have den please give me idea to come over this problem.... my code is below ..... package com.demo.rotation; import android.app.Activity; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Matrix; import android.os.Bundle; import android.util.Log; import android.view.MotionEvent; import android.view.View; import android.view.View.OnTouchListener; import android.widget.ImageView; import android.widget.ImageView.ScaleType; public class temp extends Activity{ ImageView img1; float startX; float startX2 ; Bitmap source; Bitmap bitmap1 = null; double r; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); img1 = (ImageView) findViewById(R.id.img1); img1.setOnTouchListener(img1TouchListener); bitmap1 = BitmapFactory.decodeResource(getResources(), R.drawable.orsl_circle_transparent); } private OnTouchListener img1TouchListener = new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_MOVE: Log.d("MOVE", "1"); if(source!=null) r = Math.atan2(event.getX() - source.getWidth(), (source.getHeight() / 2) - event.getY()); Log.i("startX" + event.getX(), "startY" + event.getY()); rotate(r,bitmap1, img1); img1.setScaleType(ScaleType.CENTER); break; case MotionEvent.ACTION_DOWN: break; case MotionEvent.ACTION_UP: break; default : break; } return true; } }; private void rotate(double r , Bitmap currentBitmap ,ImageView imageView ) { int rotation = (int) Math.toDegrees(r); Matrix matrix = new Matrix(); matrix.setRotate(rotation, currentBitmap.getWidth()/2, currentBitmap.getHeight()/2); source = Bitmap.createBitmap(currentBitmap, 0, 0, currentBitmap.getWidth(), currentBitmap.getHeight(), matrix, false); imageView.setImageBitmap(source); Log.i("HIGHT OF CURRENT BITMAP", ""+source.getHeight()); } }

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• How to load a springframework ApplicationContext from Jython

  - by staticman

  I have a class that loads a springframework application context like so: package com.offlinesupport; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class OfflineScriptSupport { private static ApplicationContext appCtx; public static final void initialize() { appCtx = new ClassPathXmlApplicationContext( new String[] { "mycontext.spring.xml" } ); } public static final ApplicationContext getApplicationContext() { return appCtx; } public static final void main( String[] args ) { System.out.println( "Starting..." ); initialize(); System.out.println( "loaded" ); } } The class OfflineScriptSupport, and the file mycontext.spring.xml are each deployed into separate jars (along with other classes and resources in their respective modules). Lets say the jar files are OfflineScriptSupport.jar and *MyContext.jar". mycontext.spring.xml is put at the root of the jar. In a Jython script (*myscript.jy"), I try to call the initialize method to create the application context: from com.offlinesupport import OfflineScriptSupport OfflineScriptSupport.initialize(); I execute the Jython script with the following command (from Linux): jython -Dpython.path=spring.jar:OfflineScriptSupport.jar:MyContext.jar myscript.jy The Springframework application context cannot find the mycontext.spring.xml file. It displays the following error: java.io.FileNotFoundException: class path resource [mycontext.spring.xml] cannot be opened because it does not exist at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:137) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:167) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:148) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:126) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:142) at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:113) at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:81) at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:89) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:269) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:87) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:72) at com.offlinesupport.OfflineScriptSupport.initialize(OfflineScriptSupport.java:27) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) If I run the jar directly from Java (using the main entry point in OfflineScriptSupport) it works and there is no error thrown. Is there something special about the way Jython handles classpaths making the Springframework's ClassPathXmlApplicationContext not work (i.e. not be able to find resource files in the classpath)?

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• Flip clock showing time issue (animations invovled)

  - by Hwang

  I'm creating a flip clock (clock where you always see in airport), but I can't seems to get the time to show at the correct timing. After the flip, then will see the number changing. But I want it to change before it flips. Currently I'm not sure whether is the animation problem, or isit I have to do something else on the script. I've uploaded the FLA so that you could have a look on how I set up the flipping animation. http://www.mediafire.com/?nzmymjgtntz Below is the AS3 code: package { import flash.display.MovieClip; import flash.events.TimerEvent; import flash.utils.Timer; public class flipClock extends MovieClip { private var clock:clockMC=new clockMC(); //seconds private var secTop1=clock.second.top1.digit; private var secTop2=clock.second.top2.digit; private var secBot1=clock.second.bot1.digit; private var secBot2=clock.second.bot2.digit; private var seconds:Number; private var minutes:Number; private var hours:Number; private var days:Number; public function flipClock():void { decrease(); addChild(clock); } private function decrease():void { var countdownTimer:Timer=new Timer(1000); //Adding an event listener to the timer object countdownTimer.addEventListener(TimerEvent.TIMER,updateTime); //Initializing timer object countdownTimer.start(); } private function updateTime(event:TimerEvent):void { decreasTimerFunction(); updateSecond(); //updateMinute(); } private function updateSecond():void { clock.second.play(); secTop1.text=num2; secTop2.text=num1; if (num1<10) { num1="0"+num1; } if (num2<10) { num2="0"+num2; } if (num1==60) { num1=0; } if (num2==60) { num2=0; } secTop1.text=num1; secTop2.text=num2; //secBot1.text=num1; //secBot2.text=num2; } private function decreasTimerFunction():void { //Create a date object for Christmas Morning var endTime:Date=new Date(2010,4,26,0,0,0,0); //Current date object var now:Date=new Date(); // Set the difference between the two date and times in milliseconds var timeDiff:Number=endTime.getTime()-now.getTime(); seconds=Math.floor(timeDiff/1000); minutes=Math.floor(seconds/60); hours=Math.floor(minutes/60); days=Math.floor(hours/24); // Set the remainder of the division vars above hours%=24; minutes%=60; seconds%=60; } } }

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• Still confuse parse JSON in GWT

  - by graybow

  Please help meee. I create a project named 'tesdb3' in eclipse. I create the PHP side to access the database, and made the output as JSON.. I create the userdata.php in folder war. then I compile tesdb3 project. Folder tesdb3 and the userdata.php in war moved in local server(I use WAMP). I put the PHP in folder tesdb3. This is the result from my localhost/phpmyadmin/tesdb3/userdata.php [{"kode":"002","nama":"bambang gentolet"},{"kode":"012","nama":"Algiz"}] From that result I think the PHP side was working good.Then I create UserData.java as JSNI overlay like this: package com.tesdb3.client; import com.google.gwt.core.client.JavaScriptObject; class UserData extends JavaScriptObject{ protected UserData() {} public final native String getKode() /*-{ return this.kode; }-*/; public final native String getNama() /*-{ return this.nama; }-*/; public final String getFullData() { return getKode() + ":" + getNama(); } } Then Finally in the tesdb3.java: public class Tesdb3 implements EntryPoint { String url= "http://localhost/phpmyadmin/tesdb3/datauser.php"; private native JsArray<UserData> getuserdata(String json) /*-{ return eval(json); }-*/; public void LoadData() throws RequestException{ RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, URL.encode(url)); builder.sendRequest(null, new RequestCallback(){ @Override public void onError(Request request, Throwable exception) { Window.alert("error " + exception); } public void onResponseReceived(Request request, Response response) { Window.alert("betul" + response.getText()); //data(getuserdata(response.getText())); } }); } public void data(JsArray<UserData> data){ for (int i = 0; i < data.length(); i++) { String lkode =data.get(i).getKode(); String lname =data.get(i).getNama(); Label l = new Label(lkode+" "+lname); tb.setWidget(i, 0, l); } RootPanel.get().add(new HTML("my data")); RootPanel.get().add(tb); } public void onModuleLoad() { try { LoadData(); } catch (RequestException e) { } } } The result just showing string "my data". And the Window.alert(response.getText()) showing nothing. Whyy?

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• Java "compare cannot be resolved to a type" error

  - by King Triumph

  I'm getting a strange error when attempting to use a comparator with a binary search on an array. The error states that "compareArtist cannot be resolved to a type" and is thrown by Eclipse on this code: Comparator<Song> compare = new Song.compareArtist(); I've done some searching and found references to a possible bug with Eclipse, although I have tried the code on a different computer and the error persists. I've also found similar issues regarding the capitalization of the compare method, in this case compareArtist. I've seen examples where the first word in the method name is capitalized, although it was my understanding that method names are traditionally started with a lower case letter. I have experimented with changing the capitalization but nothing has changed. I have also found references to this error if the class doesn't import the correct package. I have imported java.util in both classes in question, which to my knowledge allows the use of the Comparator. I've experimented with writing the compareArtist method within the class that has the binary search call as well as in the "Song" class, which according to my homework assignment is where it should be. I've changed the constructor accordingly and the issue persists. Lastly, I've attempted to override the Comparator compare method by implementing Comparator in the Song class and creating my own method called "compare". This returns the same error. I've only moved to calling the comparator method something different than "compare" after finding several examples that do the same. Here is the relevant code for the class that calls the binary search that uses the comparator. This code also has a local version of the compareArtist method. While it is not being called currently, the code for this method is the same as the in the class Song, where I am trying to call it from. Thanks for any advice and insight. import java.io.*; import java.util.*; public class SearchByArtistPrefix { private Song[] songs; // keep a direct reference to the song array private Song[] searchResults; // holds the results of the search private ArrayList<Song> searchList = new ArrayList<Song>(); // hold results of search while being populated. Converted to searchResults array. public SearchByArtistPrefix(SongCollection sc) { songs = sc.getAllSongs(); } public int compareArtist (Song firstSong, Song secondSong) { return firstSong.getArtist().compareTo(secondSong.getArtist()); } public Song[] search(String artistPrefix) { String artistInput = artistPrefix; int searchLength = artistInput.length(); Song searchSong = new Song(artistInput, "", ""); Comparator<Song> compare = new Song.compareArtist(); int search = Arrays.binarySearch(songs, searchSong, compare);

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• Vaadin: Downloaded file has whole path as file name

  - by javydreamercsw

  I have a download action implemented on my Vaadin application but for some reason the downloaded file has the original file's full path as the file name. Any idea? You can see the code on this post. Edit: Here's the important part of the code: package com.bluecubs.xinco.core.server.vaadin; import com.bluecubs.xinco.core.server.XincoConfigSingletonServer; import com.vaadin.Application; import com.vaadin.terminal.DownloadStream; import com.vaadin.terminal.FileResource; import java.io.*; import java.net.URLEncoder; import java.util.UUID; import java.util.logging.Level; import java.util.logging.Logger; import java.util.zip.CRC32; import java.util.zip.CheckedInputStream; /** * * @author Javier A. Ortiz Bultrón<[email protected]> */ public class FileDownloadResource extends FileResource { private final String fileName; private File download; private File newFile; public FileDownloadResource(File sourceFile, String fileName, Application application) { super(sourceFile, application); this.fileName = fileName; } protected void cleanup() { if (newFile != null && newFile.exists()) { newFile.delete(); } if (download != null && download.exists() && download.listFiles().length == 0) { download.delete(); } } @Override public DownloadStream getStream() { try { //Copy file to directory for downloading InputStream in = new CheckedInputStream(new FileInputStream(getSourceFile()), new CRC32()); download = new File(XincoConfigSingletonServer.getInstance().FileRepositoryPath + System.getProperty("file.separator") + UUID.randomUUID().toString()); newFile = new File(download.getAbsolutePath() + System.getProperty("file.separator") + fileName); download.mkdirs(); OutputStream out = new FileOutputStream(newFile); newFile.deleteOnExit(); download.deleteOnExit(); byte[] buf = new byte[1024]; int len; while ((len = in.read(buf)) > 0) { out.write(buf, 0, len); } in.close(); out.close(); final DownloadStream ds = new DownloadStream( new FileInputStream(newFile), getMIMEType(), fileName); ds.setParameter("Content-Disposition", "attachment; filename=" + URLEncoder.encode(fileName, "utf-8")); ds.setCacheTime(getCacheTime()); return ds; } catch (final FileNotFoundException ex) { Logger.getLogger(FileDownloadResource.class.getName()).log(Level.SEVERE, null, ex); return null; } catch (IOException ex) { Logger.getLogger(FileDownloadResource.class.getName()).log(Level.SEVERE, null, ex); return null; } } } I already debugged and verified that fileName only contains the file's name not the whole path.

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• JQuery uploadify plugin not working

  - by Nitesh Panchal

  Hello, I first used primefaces FileUpload component and it didn't work. Always gave "HTTP Error". So i thought there is some bug with this component and went to plain old JQuery and tried using uploadify. But still i get the same error. I am using Container Managed Security. Is this the reason for not working properly? This is my script :- $(document).ready(function(){ $('#photoInput').uploadify({ 'script' : '/Blogger/fileUploadServlet', 'uploader' : './uploadify/uploadify.swf', 'cancelImg' : './uploadify/cancel.png', 'auto' : true }); And this is my servlet which is never executed :- package Servlets; import java.io.IOException; import java.io.PrintWriter; import java.util.Iterator; import java.util.List; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.FileItemFactory; import org.apache.commons.fileupload.FileUploadException; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; @WebServlet(name = "fileUploadServlet", urlPatterns = {"/fileUploadServlet"}) public class fileUploadServlet extends HttpServlet { protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, FileUploadException { PrintWriter out = response.getWriter(); try { System.out.println("Executed!!"); boolean isMultipart = ServletFileUpload.isMultipartContent(request); // Create a factory for disk-based file items FileItemFactory factory = new DiskFileItemFactory(); // Create a new file upload handler ServletFileUpload upload = new ServletFileUpload(factory); // Parse the request List /* FileItem */ items = upload.parseRequest(request); Iterator e = items.iterator(); while(e.hasNext()){ System.out.println(e.next().toString()); } } finally { out.close(); } } } }); Please help me. I am stuck on this since 3 hours.

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• How to extract the word and line wrapping information from JTextArea for text with given font

  - by Gábor Lipták

  I have to convert styled text to wrapped simple text (for SVG word wrapping). I cannot beleive that the word wrapping information (how many lines are there, where are the line breaks) cannot be extracted from the JTextArea. So I created a small frame program: package bla; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Font; import java.awt.Frame; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.util.ArrayList; import java.util.List; import javax.swing.JTextArea; public class Example1 extends WindowAdapter { private static String content = "01234567890123456789\n" + "0123456 0123456 01234567 01234567"; JTextArea text; public Example1() { Frame f = new Frame("TextArea Example"); f.setLayout(new BorderLayout()); Font font = new Font("Serif", Font.ITALIC, 20); text = new JTextArea(); text.setFont(font); text.setForeground(Color.blue); text.setLineWrap(true); text.setWrapStyleWord(true); f.add(text, BorderLayout.CENTER); text.setText(content); // Listen for the user to click the frame's close box f.addWindowListener(this); f.setSize(100, 511); f.show(); } public static List<String> getLines( JTextArea text ) { //WHAT SHOULD I WRITE HERE return new ArrayList<String>(); } public void windowClosing(WindowEvent evt) { List<String> lines = getLines(text); System.out.println( "Number of lines:" + lines.size()); for (String line : lines) { System.out.println( line ); } System.exit(0); } public static void main(String[] args) { Example1 instance = new Example1(); } } If you run it you will see this: And what I expect as output: Number of lines:6 0123456789 0123456789 0123456 0123456 01234567 01234567 What should I write in place of the comment?

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• NfcAdapter.getDefaultAdapter(this) returns null in emulator

  - by DixieFlatline

  I am trying to test ForegroundDispatch (http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/nfc/ForegroundDispatch.html) in emulator API 10 (Android 2.3.3). When i call NfcAdapter.getDefaultAdapter(this), i get null. Why is this so? Code: public class ForegroundDispatch extends Activity { private NfcAdapter mAdapter; private PendingIntent mPendingIntent; private IntentFilter[] mFilters; private String[][] mTechLists; private TextView mText; private int mCount = 0; @Override public void onCreate(Bundle savedState) { super.onCreate(savedState); setContentView(R.layout.foreground_dispatch); mText = (TextView) findViewById(R.id.text); mText.setText("Scan a tag"); mAdapter = NfcAdapter.getDefaultAdapter(this); // Create a generic PendingIntent that will be deliver to this activity. The NFC stack // will fill in the intent with the details of the discovered tag before delivering to // this activity. mPendingIntent = PendingIntent.getActivity(this, 0, new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0); // Setup an intent filter for all MIME based dispatches IntentFilter ndef = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED); try { ndef.addDataType("*/*"); } catch (MalformedMimeTypeException e) { throw new RuntimeException("fail", e); } mFilters = new IntentFilter[] { ndef, }; // Setup a tech list for all NfcF tags mTechLists = new String[][] { new String[] { NfcF.class.getName() } }; } @Override public void onResume() { super.onResume(); mAdapter.enableForegroundDispatch(this, mPendingIntent, mFilters, mTechLists); //CRASHES HERE BECAUSE mAdapter IS NULL } @Override public void onNewIntent(Intent intent) { Log.i("Foreground dispatch", "Discovered tag with intent: " + intent); mText.setText("Discovered tag " + ++mCount + " with intent: " + intent); } @Override public void onPause() { super.onPause(); mAdapter.disableForegroundDispatch(this); } } My manifest: <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.neka.znacka" android:versionCode="1" android:versionName="1.0"> <uses-sdk android:minSdkVersion="10" /> <uses-permission android:name="android.permission.NFC"></uses-permission> <uses-feature android:name="android.hardware.nfc" android:required="true" /> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".Uvodna" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name="Simulator"> </activity> </application> Any ideas?

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• ArgumentError: Error #1063: Argument count mismatch on com.flashden::MenuItem(). Expected 1, got 0.

  - by Suzanne

  I keep getting the below error only in firefox ArgumentError: Error #1063: Argument count mismatch on com.flashden::MenuItem(). Expected 1, got 0. at flash.display::Sprite/constructChildren() at flash.display::Sprite() at flash.display::MovieClip() at com.flashden::Preview() Below is my menu script: package com.flashden { import flash.display.MovieClip; import flash.text.; import flash.events.MouseEvent; import flash.events.; import flash.net.URLRequest; import flash.display.Loader; public class MenuItem extends MovieClip { private var scope; public var closedX :Number public static const OPEN_MENU = "openMenu"; function callLink(event:MouseEvent):void { public function MenuItem(scope) { // set scope to talk back to -------------------------------// this.scope = scope; // disable all items not to be clickable -------------------// txt_label.mouseEnabled = false; menuItemShine.mouseEnabled = false; menuItemArrow.mouseEnabled = false; // make background clip the item to be clicked (button) ----// menuItemBG.buttonMode = true; // add click event listener to the header background -------// menuItemBG.addEventListener(MouseEvent.CLICK, clickHandler); } private function clickHandler (e:MouseEvent) { scope.openMenuItem(this); } public function loadContent (contentURL:String) { var loader:Loader = new Loader(); configureListeners(loader.contentLoaderInfo); var request:URLRequest = new URLRequest(contentURL); loader.load(request); // place x position of content at the bottom of the header so the top is not cut off ----// loader.x = 35; // we add the content at level 1, because the background clip is at level 0 ----// addChildAt(loader, 0); } private function configureListeners(dispatcher:IEventDispatcher):void { dispatcher.addEventListener(Event.COMPLETE, completeHandler); dispatcher.addEventListener(HTTPStatusEvent.HTTP_STATUS, httpStatusHandler); dispatcher.addEventListener(Event.INIT, initHandler); dispatcher.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler); dispatcher.addEventListener(Event.OPEN, openHandler); dispatcher.addEventListener(ProgressEvent.PROGRESS, progressHandler); dispatcher.addEventListener(Event.UNLOAD, unLoadHandler); } private function completeHandler(event:Event):void { //trace("completeHandler: " + event); // remove loader animation ----------------// removeChild(getChildByName("mc_preloader")); } private function httpStatusHandler(event:HTTPStatusEvent):void { // trace("httpStatusHandler: " + event); } private function initHandler(event:Event):void { //trace("initHandler: " + event); } private function ioErrorHandler(event:IOErrorEvent):void { //trace("ioErrorHandler: " + event); } private function openHandler(event:Event):void { //trace("openHandler: " + event); } private function progressHandler(event:ProgressEvent):void { //trace("progressHandler: bytesLoaded=" + event.bytesLoaded + " bytesTotal=" + event.bytesTotal); } private function unLoadHandler(event:Event):void { //trace("unLoadHandler: " + event); } } } Any idea why this is happening?

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• Passing a parameter in the header (XML RPC)

  - by fudgey

  I'm trying to set up a server status for the MMORPG Champions Online. I got some basic information from the web master and this is all he told me: XML-RPC call to server: http://www.champions-online.com/xmlrpc.php function name: wgsLauncher.getServerStatus Parameter (language): en-US Now, I found a nice example to start with here, and I ended up with this code: <?php ini_set('display_errors', 1); error_reporting(E_ALL); # Using the XML-RPC extension to format the XML package $request = xmlrpc_encode_request("wgsLauncher.getServerStatus", "<param><value><string>en-US</string></value></param>", null ); # Using the cURL extension to send it off, # first creating a custom header block $header[] = "Host: http://www.champions-online.com:80/"; $header[] = "Content-type: text/xml"; $header[] = "Content-length: ".strlen($request) . "\r\n"; $header[] = $request; $ch = curl_init(); curl_setopt( $ch, CURLOPT_URL, "http://www.champions-online.com/xmlrpc.php"); # URL to post to curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1 ); # return into a variable curl_setopt( $ch, CURLOPT_HTTPHEADER, $header ); # custom headers, see above curl_setopt( $ch, CURLOPT_CUSTOMREQUEST, 'POST' ); # This POST is special, and uses its specified Content-type $result = curl_exec( $ch ); # run! curl_close($ch); echo $result; ?> But I'm getting a "400 Bad Request" error. I'm new to XML RPC and I barely know php, so I'm at a loss. The examples from the php site show how to use an array as a parameter, but nothing else. I obtained the parameter string <param><value><string>en-US</string></value></param> from this XMLRPC Debugger (very nice btw). I entered the parameter I needed in the "payload" box and this was the output. So, I would appreciate any help on how to pass this parameter to the header. Note: My host supports xmlrpc but it seems the function "xmlrpc_client" doesn't exist. Update: The web master replied with this information, but it's still not working... it's getting to the point I may just scrape the status off the page. $request = xmlrpc_encode_request("wgsLauncher.getServerStatus", "en-US" );

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• Seeking STL-aware c++filt

  - by Don Wakefield

  In my development environment, I'm compiling a code base using GNU C++ 3.4.6. Code is under development, and unfortunately crashes now and then. It's nice to be able to run the traceback through a demangler, and I use c++filt 3.4. The problem comes when functions have a number of STL parameters. Consider My_callback::operator()( Status&, std::set<std::string> const&, std::vector<My_parameter*> const&, My_attribute_set const&, std::vector<My_parameter_base*> const&, std::vector<My_parameter> const&, std::set<std::string> const& ) { // ... } When this function is in the traceback, the mangled output on my platform is: (_ZN30My_callbackclER11StatusRKSt3setISsSt4lessISsESaISsEERKSt6vectorIP13My_parameterSaISB_EERK17My_attribute_setRKS9_IP18My_parameter_baseSaISK_EERKS9_ISA_SaISA_EES8_+0x76a) [0x13ffdaa] c++filt kindly demangles it to (My_callback::operator()(Status&, std::set<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, std::vector<My_parameter*, std::allocator<My_parameter*> > const&, My_attribute_set const&, std::vector<My_parameter_base*, std::allocator<My_parameter_base*> > const&, std::vector<My_parameter, std::allocator<My_parameter> > const&, std::set<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::less<std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&)+0x76a) [0x13ffdaa] This is the same problem as compiler errors encountered when using templates. However, the STL is a fairly regular and recognizable package of templates. So what I'm hoping is that someone out there has created an enhanced version of c++filt which would dump something closer to the original function signature. Any hints?

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• perl dancer: passing database info to template

  - by Bubnoff

  Following Dancer tutorial here: http://search.cpan.org/dist/Dancer/lib/Dancer/Tutorial.pod I'm using my own sqlite3 database with this schema CREATE TABLE if not exists location (location_code TEXT PRIMARY KEY, name TEXT, stations INTEGER); CREATE TABLE if not exists session (id INTEGER PRIMARY KEY, date TEXT, sessions INTEGER, location_code TEXT, FOREIGN KEY(location_code) REFERENCES location(location_code)); My dancer code ( helloWorld.pm ) for the database: package helloWorld; use Dancer; use DBI; use File::Spec; use File::Slurp; use Template; our $VERSION = '0.1'; set 'template' => 'template_toolkit'; set 'logger' => 'console'; my $base_dir = qq(/home/automation/scripts/Area51/perl/dancer); # database crap sub connect_db { my $db = qw(/home/automation/scripts/Area51/perl/dancer/sessions.sqlite); my $dbh = DBI->connect("dbi:SQLite:dbname=$db", "", "", { RaiseError => 1, AutoCommit => 1 }); return $dbh; } sub init_db { my $db = connect_db(); my $file = qq($base_dir/schema.sql); my $schema = read_file($file); $db->do($schema) or die $db->errstr; } get '/' => sub { my $branch_code = qq(BPT); my $dbh = connect_db(); my $sql = q(SELECT * FROM session); my $sth = $dbh->prepare($sql) or die $dbh->errstr; $sth->execute or die $dbh->errstr; my $key_field = q(id); template 'show_entries.tt', { 'branch' => $branch_code, 'data' => $sth->fetchall_hashref($key_field), }; }; init_db(); true; Tried the example template on the site, doesn't work. <% FOREACH id IN data.keys.nsort %> <li>Date is: <% data.$id.sessions %> </li> <% END %> Produces page but with no data. How do I troubleshoot this as no clues come up in the console/cli? Thanks Bubnoff

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• getSymbols and using lapply, Cl, and merge to extract close prices

  - by algotr8der

  I've been messing around with this for some time. I recently started using the quantmod package to perform analytics on stock prices. I have a ticker vector that looks like the following: > tickers [1] "SPY" "DIA" "IWM" "SMH" "OIH" "XLY" "XLP" "XLE" "XLI" "XLB" "XLK" "XLU" "XLV" [14] "QQQ" > str(tickers) chr [1:14] "SPY" "DIA" "IWM" "SMH" "OIH" "XLY" "XLP" "XLE" ... I wrote a function called myX to use in a lapply call to save prices for every stock in the vector tickers. It has the following code: myX <- function(tickers, start, end) { require(quantmod) getSymbols(tickers, from=start, to=end) } I call lapply by itself library(quantmod) lapply(tickers,myX,start="2001-03-01", end="2011-03-11") > lapply(tickers,myX,start="2001-03-01", end="2011-03-11") [[1]] [1] "SPY" [[2]] [1] "DIA" [[3]] [1] "IWM" [[4]] [1] "SMH" [[5]] [1] "OIH" [[6]] [1] "XLY" [[7]] [1] "XLP" [[8]] [1] "XLE" [[9]] [1] "XLI" [[10]] [1] "XLB" [[11]] [1] "XLK" [[12]] [1] "XLU" [[13]] [1] "XLV" [[14]] [1] "QQQ" That works fine. Now I want to merge the Close prices for every stock into an object that looks like # BCSI.Close WBSN.Close NTAP.Close FFIV.Close SU.Close # 2011-01-03 30.50 20.36 57.41 134.33 38.82 # 2011-01-04 30.24 19.82 57.38 132.07 38.03 # 2011-01-05 31.36 19.90 57.87 137.29 38.40 # 2011-01-06 32.04 19.79 57.49 138.07 37.23 # 2011-01-07 31.95 19.77 57.20 138.35 37.30 # 2011-01-10 31.55 19.76 58.22 142.69 37.04 Someone recommended I try something like the following: ClosePrices <- do.call(merge, lapply(tickers, function(x) Cl(get(x)))) However I tried various combinations of this without any success. First I tried just calling lapply with Cl(x) >lapply(tickers,myX,start="2001-03-01", end="2011-03-11") Cl(myX))) > lapply(tickers,myX,start="2001-03-01", end="2011-03-11") Cl(x))) Error: unexpected symbol in "lapply(tickers,myX,start="2001-03-01", end="2011-03-11") Cl" > > lapply(tickers,myX(x),start="2001-03-01", end="2011-03-11") Cl(x))) Error: unexpected symbol in "lapply(tickers,myX(x),start="2001-03-01", end="2011-03-11") Cl" > > lapply(tickers,myX(start="2001-03-01", end="2011-03-11") Cl(x) Error: unexpected symbol in "lapply(tickers,myX(start="2001-03-01", end="2011-03-11") Cl" > lapply(tickers,myX(start="2001-03-01", end="2011-03-11") Cl(x)) Error: unexpected symbol in "lapply(tickers,myX(start="2001-03-01", end="2011-03-11") Cl" > Any guidance would be kindly appreciated.

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