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• Mercurial to Mercurial to Subversion Workflow Problem

  - by Dalroth

  We're migrating from Subversion to Mercurial. To facilitate the migration, we're creating an intermediate Mercurial repository that is a clone of our Subversion repository. All developers will be begin switching over to the Mercurial repository, and we'll periodically push changes from the intermediate Mercurial repository to the existing Subversion repository. After a period of time, we'll simply obsolete the Subversion repository and the intermediate Mercurial repository will become the new system of record. Dev 1 Local --+--> Mercurial --+--> Subversion Dev 2 Local --+ + Dev 3 Local --+ + Dev 4 -------------------------+ I've been testing this out, but I keep running into a problem when I push changes from my local repository, to the intermediate Mercurial repository, and then up into our Subversion repository. On my local machine, I have a changeset that is committed and ready to be pushed to our intermediate Mercurial repository. Here you can see it is revision #2263 with hash 625... I push only this changeset to the remote repository. So far, everything looks good. The changeset has been pushed. hg update 1 files updated, 0 files merged, 0 files removed, 0 files unresolved I now switch over to the remote repository, and update the working directory. hg push pushing to svn://... searching for changes [r3834] bmurphy: database namespace pulled 1 revisions saving bundle to /srv/hg/repository/.hg/strip-backup/62539f8df3b2-temp adding branch adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files rebase completed Next, I push the change up to Subversion, works great. At this point, the change is in the Subversion repository and I return attention back to my local client. I pull changes to my local machine. Huh? I've now got two changesets. My original changeset appears as a local branch now. The other changeset has a new revision number 2264, and a new hash 10c1... Anyway, I update my local repo to the new revision. I'm now switched over. So, I finally click the "determine and mark outgoing changesets" and as you can see Mercurial still wants to push out my previous changesets even though they've already been pushed. Clearly, I'm doing something wrong. I also can't merge the two revisions. If I merge the two revisions on my local machine, I end up with a "merge" commit. When I push that merge commit out to the intermediate Mercurial repository, I can no longer push changes out to our Subversion repository. I end up with the following problem: hg update 0 files updated, 0 files merged, 0 files removed, 0 files unresolved hg push pushing to svn://... searching for changes abort: Sorry, can't find svn parent of a merge revision. and I have to rollback the merge to get back to a working state. What am I missing?

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• jQuery Validation plugin: disable validation for specified submit buttons

  - by Ted

  I have a form with multiple fields that I'm validating (some with methods added for custom validation) with Jörn Zaeffere's excellent jQuery Validation plugin. How do you circumvent validation with specified submit controls (in other words, fire validation with some submit inputs, but do not fire validation with others)? This would be similar to ValidationGroups with standard ASP.NET validator controls. My situation: It's with ASP.NET WebForms, but you can ignore that if you wish. However, I am using the validation more as a "recommendation": in other words, when the form is submitted, validation fires but instead of a "required" message displaying, a "recommendation" shows that says something along the line of "you missed the following fields.... do you wish to proceed anyways?" At that point in the error container there's another submit button now visible that can be pressed which would ignore the validation and submit anyways. How to circumvent the forms .validate() for this button control and still post? The Buy and Sell a House sample at http://jquery.bassistance.de/validate/demo/multipart/ allows for this in order to hit the previous links, but it does so through creating custom methods and adding it to the validator. I would prefer to not have to create custom methods duplicating functionality already in the validation plugin. The following is a shortened version of the immediately applicable script that I've got right now: var container = $("#<%= Form.ClientID %> div.validationSuggestion"); $('#<%= Form.ClientID %>').validate({ errorContainer: container, errorLabelContainer: $("ul",container), rules: { <%= YesNo.UniqueID %>: { required: true }, <%= ShortText.UniqueID %>: { required: true } // etc. }, messages: { <%= YesNo.UniqueID %>: 'A message.', <%= ShortText.UniqueID %>: 'Another message.' // etc. }, highlight: function(element, errorClass) { $(element).addClass(errorClass); $(element.form).find("label[for=" + element.id + "]").addClass(errorClass); $(element.form).find("label[for=" + element.id + "]").removeClass("valid"); }, unhighlight: function(element, errorClass) { $(element).removeClass(errorClass); $(element.form).find("label[for=" + element.id + "]").removeClass(errorClass); $(element.form).find("label[for=" + element.id + "]").addClass("valid"); }, wrapper: 'li' }); Much thanks in advance for helpful pointers. [UPDATE] Thanks to redsquare I discovered it's as easy as adding class="cancel" to the submit button. So easy and yet I have no idea how I did not come across it in all my searching. And for those who say my my follow-up answer regarding "but requires a double-click": this was merely due to a leftover experiment line that was unbinding the event - again something I don't know how I overlooked when testing. Thanks!

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• WPF DataGrid and Avalon TimePicker binding problem

  - by Jorge Vargas

  I'm using a the WPF DataGrid from the wpf toolkit and a TimePicker from AvalonControlsLibrary to insert a collection of TimeSpans. My problem is that bindings are not working inside the DataGrid, and I have no clue of why this isn't working. Here is my setup: I have the following XAML: <Window x:Class="Views.TestMainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:wpf="http://schemas.microsoft.com/wpf/2008/toolkit" xmlns:a="http://schemas.AvalonControls/AvalonControlsLibrary/Controls" SizeToContent="WidthAndHeight" MinHeight="250" MinWidth="300"> <Grid> <Grid.RowDefinitions> <RowDefinition Height="*" /> <RowDefinition Height="Auto" /> </Grid.RowDefinitions> <GroupBox Grid.Row="0"> <GroupBox.Header> Testing it: </GroupBox.Header> <wpf:DataGrid ItemsSource="{Binding Path=TestSpans}" AutoGenerateColumns="False"> <wpf:DataGrid.Columns> <wpf:DataGridTemplateColumn Header="Start"> <wpf:DataGridTemplateColumn.CellEditingTemplate> <DataTemplate> <a:TimePicker SelectedTime="{Binding Path=., Mode=TwoWay}" /> </DataTemplate> </wpf:DataGridTemplateColumn.CellEditingTemplate> <wpf:DataGridTemplateColumn.CellTemplate> <DataTemplate> <TextBlock Text="{Binding}" /> </DataTemplate> </wpf:DataGridTemplateColumn.CellTemplate> </wpf:DataGridTemplateColumn> </wpf:DataGrid.Columns> </wpf:DataGrid> </GroupBox> <StackPanel Orientation="Horizontal" HorizontalAlignment="Right" Grid.Row="1"> <a:TimePicker SelectedTime="{Binding Path=SelectedTime, Mode=TwoWay}" /> </StackPanel> </Grid> And this is my ViewModel: Imports System.Collections.ObjectModel Namespace ViewModels Public Class TestMainWindowViewModel Private _selectedTime As TimeSpan = DateTime.Now.TimeOfDay Public Property SelectedTime() As TimeSpan Get Return _selectedTime End Get Set(ByVal value As TimeSpan) _selectedTime = value End Set End Property Private _testSpans As ObservableCollection(Of TimeSpan) = New ObservableCollection(Of TimeSpan) Public Property TestSpans() As ObservableCollection(Of TimeSpan) Get Return _testSpans End Get Set(ByVal value As ObservableCollection(Of TimeSpan)) _testSpans = value End Set End Property Public Sub New() _testSpans.Add(DateTime.Now.TimeOfDay) _testSpans.Add(DateTime.Now.TimeOfDay) _testSpans.Add(DateTime.Now.TimeOfDay) End Sub End Class End Namespace I'm starting this window in application.xaml.vb like this: Class Application ' Application-level events, such as Startup, Exit, and DispatcherUnhandledException ' can be handled in this file. Protected Overrides Sub OnStartup(ByVal e As System.Windows.StartupEventArgs) MyBase.OnStartup(e) Dim window As Views.TestMainWindow = New Views.TestMainWindow window.DataContext = New TestMainWindowViewModel() window.Show() End Sub End Class

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• JSF a4j:commandButton not working when 'disabled' is set

  - by Jon

  Hello, When I include a 'disabled' attribute on an a4j:commandButton, the button's action is not performed. Taking the 'disabled' attribute out causes it to work properly. I am not doing any special validation (that I'm aware of) and am not seeing any validation error messages. Here is part of my page: <t:dataTable id="myTable" var="region" value="#{MyPageBackingBean.regions}" width="100%"> ... <a4j:commandButton value="Update" action="#{region.doUpdate}" oncomplete="alert('done');" disabled="#{!empty region && region.messageEmpty}" immediate="true"/> ... </t:dataTable> Any ideas? Thanks! Edit: I tried setting preserveDataModel="true" on the t:dataTable to no avail. I also made a test having an a4j:commandButton and text box with no data table, but the backing bean action is still not being fired: <h:form> <a4j:region> <a4j:outputPanel id="testregion"> <h:messages id="messages"/> <a4j:status> <f:facet name="start"> <h:graphicImage value="/images/progress_indicator.gif"/> </f:facet> </a4j:status> <h:inputTextarea rows="5" value="#{MyPageBackingBean.myValue}" style="width:100%; border: 1px solid #99CCFF;"> <a4j:support event="onkeyup" reRender="testregion" eventsQueue="messageModificationQueue" ignoreDupResponses="true" requestDelay="500"/> </h:inputTextarea> <a4j:commandButton id="doDelete" value="Delete" action="#{MyPageBackingBean.dummy}" reRender="testregion" disabled="#{empty MyPageBackingBean.myValue}"/> <h:outputText value="#{MyPageBackingBean.myValue}"/> </a4j:outputPanel> </a4j:region> </h:form> Here is the new backing bean code used for testing: private String m_myValue = null; public String getMyValue() { return m_myValue; } public void setMyValue(String value) { m_myValue = value; } private String mystr2 = null; public String dummy() { mystr2 = "hello"; return null; } Thanks!

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• How do I add a listener that will work on individual Fieldset in Extjs? Clicking the "Add" button sh

  - by Nair

  Testing Window /*! * Ext JS Library 3.0.0 * Copyright(c) 2006-2009 Ext JS, LLC * [email protected] * http://www.extjs.com/license */ Ext.onReady(function(){ Ext.override( Ext.data.Store, { findExact: function( fld, val ) { var hit = null; this.each( function(rec) { if( rec.get(fld) == val ) { hit = rec; return false; }; } ); return hit; } }); var listAdded = 0; var addListBtn = { text: 'Add', handler: function() { Ext.getCmp('tab_list').add(getList()); Ext.getCmp('tab_list').doLayout(); } } var testData = new Ext.data.SimpleStore({ fields: ['no', 'name', 'address','phone','businessPhone'], data: [['68', 'Target','123 Valley Road','(345) 908-9087','(345) 908-9087'], ['69', 'Walmart','456 Main Road','(345) 908-9999','(345) 908-9990']] }); var getList = function() { listAdded++; var items = new Ext.form.FieldSet( { id:listAdded, title: listAdded, collapsible: true, layout: 'form', autoHeight: true, defaults: {width: 300}, defaultType: 'textfield', bodyStyle: 'padding:5px', labelWidth: 225, items: [ { xtype: 'combo', fieldLabel: 'Customer No', name: 'changescustomerNo', hiddenName: 'changescustomerNo', store: new Ext.data.SimpleStore({ fields: ['id','value'], data: [['68','Test1'],['69','Test2']] }), displayField: 'value', valueField: 'id', selectOnFocus: true, mode: 'local', editable: false, triggerAction: 'all', value: ' ', listeners:{select:{ fn:function(combo, value) { var m = testData.findExact( 'no', this.value ); if(m) { //alert(this.id); Ext.getCmp('currentName').setValue(m.get('name')); Ext.getCmp('currentAddress').setValue(m.get('address')); Ext.getCmp('currentTelephoneNumber').setValue(m.get('phone')); Ext.getCmp('currentBusTelephoneNumber').setValue(m.get('businessPhone')); } }//function }//select }//listeners },{ id: 'currentName', fieldLabel: 'Current Name', name: 'currentName', value: '' },{ id: 'currentAddress', width: 298, xtype: 'textarea', fieldLabel: 'Current Address', name: 'currentAddress', value: '' },{ id:'currentTelephoneNumber', fieldLabel: 'Current Telephone Number', name: 'currentTelephoneNumber', value: '' },{ id: 'currentBusTelephoneNumber', fieldLabel: 'Current Business Telephone Number', name: 'currentBusTelephoneNumber', value: '' } ] } ); return items; } var pnlMain = new Ext.Panel({ id: 'theForm', title: 'Sample List', bodyStyle:'padding:5px', autoWidth: true, frame: true, items: [{ xtype: 'tabpanel', id: 'tabpanel', activeTab: 0, height: 540, width: '100%', resizeTabs: true, tabWidth: 125, minTabWidth: 125, layoutOnTabChange: true, deferredRender: false, // Create all form elements on load defaults: { bodyStyle: 'padding:10px', autoScroll: true, layout: 'form', defaultType: 'textfield', labelWidth: 160 }, items:[{ id: 'tab_list', title: 'List', items: getList(), buttons: [ addListBtn ] }] }] }); pnlMain.render('main'); });

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• Debugging Messaging Exception

  - by rizza

  We have a batch program that incorporates JavaMail 1.2 that sends emails. In our development environment, we haven't got the chance to encounter the above mentioned exception. But in the client's environment, they had experienced this a lot of times with the following error trace: javax.mail.MessagingException: 550 Requested action not taken: NUL characters are not allowed. at com.sun.mail.smtp.SMTPTransport.issueCommand (SMTPTransport.java: 879) at com.sun.mail.smtp.SMTPTransport.finishData (SMTPTransport.java: 820) at com.sun.mail.smtp.SMTPTransport.sendMessage (SMTPTransport.java: 322) ... I'm not sure if this is connected to my problem, http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4697158. But trying JavaMail 1.4.2, I see that the content transfer encoding of the email is still 7bit, so I'm not sure if using JavaMail 1.4.2 could solve the problem. Please take note that I could only do testing in our development environment that hasn't been able to replicate this. With the above exception, how would i know if this is from the sender or the receiver side? What debugging steps could you suggest? EDIT: Here is a DEBUG of the actual sending (masked some information): DEBUG: not loading system providers in &lt;java.home&gt;</a>/lib DEBUG: not loading optional custom providers file: /META-INF/javamail.providers DEBUG: successfully loaded default providers DEBUG: Tables of loaded providers DEBUG: Providers Listed By Class Name: {com.sun.mail.smtp.SMTPTransport=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc], com.sun.mail.imap.IMAPStore=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], com.sun.mail.pop3.POP3Store=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc]} DEBUG: Providers Listed By Protocol: {imap=javax.mail.Provider[STORE,imap,com.sun.mail.imap.IMAPStore,Sun Microsystems, Inc], pop3=javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Sun Microsystems, Inc], smtp=javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]} DEBUG: not loading optional address map file: /META-INF/javamail.address.map DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc] DEBUG SMTP: useEhlo true, useAuth false DEBUG: SMTPTransport trying to connect to host "nnn.nnn.n.nnn", port nn DEBUG SMTP RCVD: 220 xxxx.xxxxxxxxxxx.xxx SMTP; Mon, 23 Mar 2009 15:18:57 +0800 DEBUG: SMTPTransport connected to host "nnn.nnn.n.nnn", port: nn DEBUG SMTP SENT: EHLO xxxxxxxxx DEBUG SMTP RCVD: 250 xxxx.xxxxxxxxxxx.xxx Hello DEBUG SMTP: use8bit false DEBUG SMTP SENT: MAIL FROM:<a href="newmsg.cgi?mbx=Main&[email protected]">&lt;[email protected]&gt;</a> DEBUG SMTP RCVD: 250 <a href="newmsg.cgi?mbx=Main&[email protected]">&lt;[email protected]&gt;</a>... Sender ok DEBUG SMTP SENT: RCPT TO:&lt;[email protected]&gt; DEBUG SMTP RCVD: 250 &lt;[email protected]&gt;... Recipient ok Verified Addresses &nbsp;&nbsp;[email protected] DEBUG SMTP SENT: DATA DEBUG SMTP RCVD: 354 Enter mail, end with "." on a line by itself DEBUG SMTP SENT: . DEBUG SMTP RCVD: 550 Requested action not taken: NUL characters are not allowed.

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• How can you add a UIGestureRecognizer to a UIBarButtonItem as in the common undo/redo UIPopoverContr

  - by SG

  Problem In my iPad app, I cannot attach a popover to a button bar item only after press-and-hold events. But this seems to be standard for undo/redo. How do other apps do this? Background I have an undo button (UIBarButtonSystemItemUndo) in the toolbar of my UIKit (iPad) app. When I press the undo button, it fires it's action which is undo:, and that executes correctly. However, the "standard UE convention" for undo/redo on iPad is that pressing undo executes an undo but pressing and holding the button reveals a popover controller where the user selected either "undo" or "redo" until the controller is dismissed. The normal way to attach a popover controller is with presentPopoverFromBarButtonItem:, and I can configure this easily enough. To get this to show only after press-and-hold we have to set a view to respond to "long press" gesture events as in this snippet: UILongPressGestureRecognizer *longPressOnUndoGesture = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleLongPressOnUndoGesture:)]; //Broken because there is no customView in a UIBarButtonSystemItemUndo item [self.undoButtonItem.customView addGestureRecognizer:longPressOnUndoGesture]; [longPressOnUndoGesture release]; With this, after a press-and-hold on the view the method handleLongPressOnUndoGesture: will get called, and within this method I will configure and display the popover for undo/redo. So far, so good. The problem with this is that there is no view to attach to. self.undoButtonItem is a UIButtonBarItem, not a view. Possible solutions 1) [The ideal] Attach the gesture recognizer to the button bar item. It is possible to attach a gesture recognizer to a view, but UIButtonBarItem is not a view. It does have a property for .customView, but that property is nil when the buttonbaritem is a standard system type (in this case it is). 2) Use another view. I could use the UIToolbar but that would require some weird hit-testing and be an all around hack, if even possible in the first place. There is no other alternative view to use that I can think of. 3) Use the customView property. Standard types like UIBarButtonSystemItemUndo have no customView (it is nil). Setting the customView will erase the standard contents which it needs to have. This would amount to re-implementing all the look and function of UIBarButtonSystemItemUndo, again if even possible to do. Question How can I attach a gesture recognizer to this "button"? More specifically, how can I implement the standard press-and-hold-to-show-redo-popover in an iPad app? Ideas? Thank you very much, especially if someone actually has this working in their app (I'm thinking of you, omni) and wants to share...

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• SQLite file locking and DropBox

  - by Alex Jenter

  I'm developing an app in Visual C++ that uses an SQLite3 DB for storing data. Usually it sits in the tray most of the time. I also would like to enable putting my app in a DropBox folder to share it across several PCs. It worked really well up until DropBox has recently updated itself. And now it says that it "can't sync the file in use". The SQLite file is open in my app, but the lock is shared. There are some prepared statements, but all are reset immediately after using step. Is there any way to enable synchronizing of an open SQLite database file? Thanks! Here is the simple wrapper that I use just for testing (no error handling), in case this helps: class Statement { private: Statement(sqlite3* db, const std::wstring& sql) : db(db) { sqlite3_prepare16_v2(db, sql.c_str(), sql.length() * sizeof(wchar_t), &stmt, NULL); } public: ~Statement() { sqlite3_finalize(stmt); } public: void reset() { sqlite3_reset(stmt); } int step() { return sqlite3_step(stmt); } int getInt(int i) const { return sqlite3_column_int(stmt, i); } tstring getText(int i) const { const wchar_t* v = (const wchar_t*)sqlite3_column_text16(stmt, i); int sz = sqlite3_column_bytes16(stmt, i) / sizeof(wchar_t); return std::wstring(v, v + sz); } private: friend class Database; sqlite3* db; sqlite3_stmt* stmt; }; class Database { public: Database(const std::wstring& filename = L"")) : db(NULL) { sqlite3_open16(filename.c_str(), &db); } ~Database() { sqlite3_close(db); } void exec(const std::wstring& sql) { auto_ptr<Statement> st(prepare(sql)); st->step(); } auto_ptr<Statement> prepare(const tstring& sql) const { return auto_ptr<Statement>(new Statement(db, sql)); } private: sqlite3* db; };

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• Mercurial client error 255 and HTTP error 404 when attempting to push large files to server

  - by coderunner

  Problem: When attempting to push a changeset that contains 6 large files (.exe, .dmg, etc) to my remote server my client (MacHG) is reporting the error: "Error During Push. Mercurial reported error number 255: abort: HTTP Error 404: Not Found" What does the error even mean?! The only thing unique (that I can tell) about this commit is the size, type, and filenames of the files. How can I determine which exact file within the changeset is failing? How can I delete the corrupt changeset from the repository? Someone reported using "mq" extensions, but it looks overly complicated for what I'm trying to achieve. Background: I can push and pull the following: source files, directories, .class files and a .jar file to and from the server, using both MacHG and toirtoise HG. I successfully committed to my local repository the addition for the first time the 6 large .exe, .dmg etc installer files (about 130Mb total). In the following commit to my local repository, I removed ("untracked" / forget) the 6 files causing the problem, however the previous (failing) changeset is still queued to be pushed to the server (i.e. my local host is trying to push the "add" and then the "remove" to the remote server - and keep aligned with the "keep everything in history" philosophy of the source control system). I can commit .txt .java files etc using TortoiseHG from Windows PCs. I haven't actually testing committing or pushing the same large files using TortoiseHG. Please help! Setup: Client applications = MacHG v0.9.7 (SCM 1.5.4), and TortoiseHG v1.0.4 (SCM 1.5.4) Server = HTTPS, IIS7.5, Mercurial 1.5.4, Python 2.6.5, setup using these instructions: http://www.jeremyskinner.co.uk/mercurial-on-iis7/ In IIS7.5 the CGI handler is configured to handle ALL verbs (not just GET, POST and HEAD). My hgweb.cgi file on the server is as follows: #!/usr/bin/env python # # An example hgweb CGI script, edit as necessary # Path to repo or hgweb config to serve (see 'hg help hgweb') #config = "/path/to/repo/or/config" # Uncomment and adjust if Mercurial is not installed system-wide: #import sys; sys.path.insert(0, "/path/to/python/lib") # Uncomment to send python tracebacks to the browser if an error occurs: #import cgitb; cgitb.enable() from mercurial import demandimport; demandimport.enable() from mercurial.hgweb import hgweb, wsgicgi application = hgweb('C:\inetpub\wwwroot\hg\hgweb.config') wsgicgi.launch(application) My hgweb.config file on the server is as follows: [collections] C:\Mercurial Repositories = C:\Mercurial Repositories [web] baseurl = /hg allow_push = usernamea allow_push = usernameb

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• Delphi TBytesField - How to see the text properly - Source is HIT OLEDB AS400

  - by myitanalyst

  We are connecting to a multi-member AS400 iSeries table via HIT OLEDB and HIT ODBC. You connect to this table via an alias to access a specific multi-member. We create the alias on the AS400 this way: CREATE ALIAS aliasname FOR table(membername) We can then query each member of the table this way: SELECT * FROM aliasname We are testing this in Delphi6 first, but will move it to D2010 later We are using HIT OLEDB for the AS400. We are pulling down records from a table and the field is being seen as a tBytesField. I have also tried ODBC driver and it sees as tBytesField as well. Directly on the AS400 I can query the data and see readable text. I can use the iSeries Navigation tool and see readable text as well. However when I bring it down to the Delphi client via the HIT OLEDB or HIT ODBC and try to view via asString then I just see unreadable text.. something like this: ñðð@ðõñððððñ÷@õôððõñòøóóöøñðÂÁÕÒ@ÖÆ@ÁÔÅÙÉÃÁ@@@@@@@@ÂÈÙÉâãæÁðòñè@ÔK@k@ÉÕÃK@@@@@@@@@ç I jumbled up the text above, but that is the character types that show up. When I did a test in D2010 the text looks like japanse or chinese characters, but if I display as AnsiString then it looks like what it does in Delphi 6. I am thinking this may have something to do with code pages or character sets, but I have no experience in this are so it is new to me if it is related. When I look at the Coded Character Set on the AS400 it is set to 65535. What do I need to do to make this text readable? We do have a third party component (Delphi400) that makes things behave in a more native AS400 manner. When I use its AS400 connection and AS400 query components it shows the field as a tStringField and displays just fine. BUT we are phasing out this product (for a number of reasons) and would really like the OLEDB with the ADO components work. Just for clarification the HIT OLEDB with tADOQuery do have some fields showing as tStringFields for many of the other tables we use... not sure why it is showing as a tBytesField in this case. I am not an AS400 expert, but looking at the field definititions on the AS400 the ones showing up as tBytesField look the same as the ones showing up as tStringFields... but there must be a difference. Maybe due to being a multi-member? So... does anyone have any guidance on how to get the correct string data that is readable? If you need more info please ask. Greg

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• C++ vs Matlab vs Python as a main language for Computer Vision Postgraduate

  - by Hough

  Hi all, Firstly, sorry for a somewhat long question but I think that many people are in the same situation as me and hopefully they can also gain some benefit from this. I'll be starting my PhD very soon which involve the fields of computer vision, pattern recognition and machine learning. Currently, I'm using opencv (2.1) C++ interface and I especially like its powerful Mat class and the overloaded operations available for matrix and image seamless operations and transformations. I've also tried (and implemented many small vision projects) using opencv python interface (new bindings; opencv 2.1) and I really enjoy python's ability to integrate opencv, numpy, scipy and matplotlib. But recently, I went back to opencv C++ interface because I felt that the official python new bindings were not stable enough and no overloaded operations are available for matrices and images, not to mention the lack of machine learning modules and slow speeds in certain operations. I've also used Matlab extensively in the past and although I've used mex files and other means to speed up the program, I just felt that Matlab's performance was inadequate for real-time vision tasks, be it for fast prototyping or not. When the project becomes larger and larger, many tasks have to be re-written in C and compiled into Mex files increasingly and Matlab becomes nothing more than a glue language. Here comes the sub-questions: For postgrad studies in these fields (machine learning, vision, pattern recognition), what is your main or ideal programming language for rapid prototyping of ideas and testing algorithms contained in papers? For postgrad studies, can you list down the pros and cons of using the following languages? C++ (with opencv + gsl + svmlib + other libraries) vs Matlab (with all its toolboxes) vs python (with the imcomplete opencv bindings + numpy + scipy + matplotlib). Are there computer vision PhD/postgrad students here who are using only C++ (with all its availabe libraries including opencv) without even needing to resort to Matlab or python? In other words, given the current existing computer vision or machine learning libraries, is C++ alone sufficient for fast prototyping of ideas? If you're currently using Java or C# for your postgrad work, can you list down the reasons why they should be used and how they compare to other languages in terms of available libraries? What is the de facto vision/machine learning programming language and its associated libraries used in your university research group? Thanks in advance.

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• MKMapView memory usage grows out of control with setRegion: calls

  - by Kurt

  Hi, I have a single MKMapView instance that I have programmatically added to a UIView. As part of the UI, the user can cycle through a list of addresses and the map view is updated to show the correct map for each address as the user goes through them. I create the map view once, and simply change what it displays with setRegion:animated:. The problem is that each time the map is changed to show a new address, the memory usage of my program increases by 200K-500K (as reported by Memory Monitor in Instruments). According to Object Allocations, it appears that a lot of 1.0K Mallocs are happening each time, and the Extended Detail pane for these 1.0K allocations shows that the Responsible Caller is convert_image_data and the Extended Detail pane shows that this is the result of [MKMapTileView drawLayer:inContext:]. So, seems likely to me that the memory usage is due to MKMapView not freeing memory it uses to redraw the map each time. In fact, when I don't display the map at all (by not even adding it as a subview of my main UIView) but still cycle through the addresses (which changes various UILabels and other displayed info) the memory usage for the app does NOT increase. If I add the map view but never update it with setRegion:, the memory also does NOT increase when changing to a new address. One more bit of info: if I go to a new address (and therefore ask the map to display the new address) the memory jumps as described above. However, if I go back to an address that was already displayed, the memory does not jump when the map redraws with the old address. Also, this happens on iPad (real device) with 3.2 and on iPhone (again, real device) with 3.1.2. Here's how I initialize the MKMapView (I only do this once): CGRect mapFrame; mapFrame.origin.y = 460; // yes, magic numbers. just for testing. mapFrame.origin.x = 0; mapFrame.size.height = 500; mapFrame.size.width = 768; mapView = [[MKMapView alloc] initWithFrame:mapFrame]; mapView.delegate = self; [self.view insertSubview:mapView atIndex:0]; And in response to the user selecting an address, I set the map like so: MKCoordinateRegion region; MKCoordinateSpan span; span.latitudeDelta=kStreetMapSpan; // 0.003 span.longitudeDelta=kStreetMapSpan; // 0.003 region.center = address.coords; // coords is CLLocationCoordinate2D region.span = span; mapView.region.span = span; [mapView setRegion:region animated:NO]; Any thoughts? I've scoured the net but haven't seen mention of this problem, and I've reached the limits of my Instruments knowledge. Thanks for any ideas.

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• not able to remove nested lists in a jQuery variable

  - by Pradyut Bhattacharya

  Hi I have a nested oredered list which i m animating using this code... var $li = $("ol#update li"); function animate_li(){ $li.filter(':first') .animate({ height: 'show', opacity: 'show' }, 500, function(){ animate_li(); }); $li = $li.not(':first'); } animate_li(); now i want not to show or animate the nested lists(ol s) or the li s in the ols take a look at the example here The structure of my ols are <ol> <li class="bar248"> <div class="nli"> <div class="pic"> <img src="dir/anonymous-thumb.png"alt="image" /> </div> <div align="left" class="text"> <span> <span class="delete_button"><a href="#" id="test" class="delete_update">R</a></span> test shouted <span class="timestamp"> 2010/02/24 18:34:26 </span> <br /> this </span> </div> <div class="clear"></div> </div> <div class="padd"> </div> <ol class="comment"> <li> <div>Testing </div> </li> <li> <div>Another Test </div> </li> </ol> </li> </ol> I m able to hide the nested ols using this code... $("ol#update li ol").hide(); But still time is being consumed in animating them although they are hidden I m not able to remove the nested li s using this code var $li = $("ol#update li").not("ol#update li ol"); $li = $li.not("ol#update li ol"); Take a look at this here Any help thanks < br Pradyut

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• Fluid CSS: floating column with max-width and overflow

  - by Ates Goral

  I'm using a fluid layout in the new theme that I'm working on for my blog. I often blog about code and include <pre> blocks within the posts. The float: left column for the content area has a max-width so that the column stops at a certain maximum width and can also be shrunk: +----------+ +------+ | text | | text | | | | | | | | | | | | | | | | | | | | | +----------+ +------+ max shrunk What I want is for the <pre> elements to be wider than the text column so that I can fit 80-character-wrapped code without horizontal scroll bars. But I want the <pre> elements to overflow from the content area, without affecting its fluidity: +----------+ +------+ | text | | text | | | | | +----------+--+ +------+------+ | code | | code | +----------+--+ +------+------+ | | | | +----------+ +------+ max shrunk But, max-width stops being fluid once I insert the overhanging <pre> in there: the width of the column remains at the specified max-width even when I shrink the browser beyond that width. I've reproduced the issue with this bare-minimum scenario: <div style="float: left; max-width: 460px; border: 1px solid red"> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit</p> <pre style="max-width: 700px; border: 1px solid blue"> function foo() { // Lorem ipsum dolor sit amet, consectetur adipisicing elit } </pre> <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit</p> </div> I noticed that doing either of the following brings back the fluidity: Remove the <pre> (doh...) Remove the float: left The workaround I'm currently using is to insert the <pre> elements into "breaks" in the post column, so that the widths of the post segments and the <pre> segments are managed mutually exclusively: +----------+ +------+ | text | | text | +----------+ +------+ +-------------+ +-------------+ | code | | code | +-------------+ +-------------+ +----------+ +------+ +----------+ +------+ max shrunk But this forces me to insert additional closing and opening <div> elements into the post markup which I'd rather keep semantically pristine. Admittedly, I don't have a full grasp of how the box model works with floats with overflowing content, so I don't understand why the combination of float: left on the container and the <pre> inside it cripple the max-width of the container. I'm observing the same problem on Firefox/Chrome/Safari/Opera. IE6 (the crazy one) seems happy all the time. This also doesn't seem dependent on quirks/standards mode. Update I've done further testing to observe that max-width seems to get ignored when the element has a float: left. I glanced at the W3C box model chapter but couldn't immediately see an explicit mention of this behaviour. Any pointers?

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• Running a Java program with a .dll from Adobe AIR's native process

  - by Donny

  I would like to be able to operate a scanner from my AIR application. Since there's no support for this natively, I'm trying to use the NativeProcess class to start a jar file that can run the scanner. The Java code is using the JTwain library to operate the scanner. The Java application runs fine by itself, and the AIR application can start and communicate with the Java application. The problem seems to be that any time I attempt to use a function from JTwain (which relies on the JTwain.dll), the application dies IF AIR STARTED IT. I'm not sure if there's some limit about referencing dll files from the native process or what. I've included my code below Java code- while(true) { try { System.out.println("Start"); text = in.readLine(); Source source = SourceManager.instance().getCurrentSource(); System.out.println("Java says: "+ text); } catch (IOException e) { System.err.println("Exception while reading the input. " + e); } catch (Exception e) { System.out.println("Other exception occured: " + e.toString()); } finally { } } } Air application- import mx.events.FlexEvent; private var nativeProcess:NativeProcess; private var npInfo:NativeProcessStartupInfo; private var processBuffer:ByteArray; private var bLength:int = 0; protected function windowedapplication1_applicationCompleteHandler(event:FlexEvent):void { var arg:Vector.<String> = new Vector.<String>; arg.push("-jar"); arg.push(File.applicationDirectory.resolvePath("Hello2.jar").nativePath); processBuffer = new ByteArray; npInfo = new NativeProcessStartupInfo; npInfo.executable = new File("C:/Program Files/Java/jre6/bin/javaw.exe"); npInfo.arguments = arg; nativeProcess = new NativeProcess; nativeProcess.addEventListener(ProgressEvent.STANDARD_OUTPUT_DATA, onStandardOutputData); nativeProcess.start(npInfo); } private function onStandardOutputData(e:ProgressEvent):void { tArea.text += nativeProcess.standardOutput.readUTFBytes(nativeProcess.standardOutput.bytesAvailable); } protected function button1_clickHandler(event:MouseEvent):void { tArea.text += 'AIR app: '+tInput.text + '\n'; nativeProcess.standardInput.writeMultiByte(tInput.text + "\n", 'utf-8'); tInput.text = ''; } protected function windowedapplication1_closeHandler(event:Event):void { nativeProcess.closeInput(); } ]]> </fx:Script> <s:Button label="Send" x="221" y="11" click="button1_clickHandler(event)"/> <s:TextInput id="tInput" x="10" y="10" width="203"/> <s:TextArea id="tArea" x="10" width="282" height="88" top="40"/> I would love some explanation about why this is dying. I've done enough testing that I know absolutely that the line that kills it is the SourceManager.instance().getCurrentSource(). I would love any suggestions. Thanks.

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• My neural network gets "stuck" while training. Is this normal?

  - by Vivin Paliath

  I'm training a XOR neural network via back-propagation using stochastic gradient descent. The weights of the neural network are initialized to random values between -0.5 and 0.5. The neural network successfully trains itself around 80% of the time. However sometimes it gets "stuck" while backpropagating. By "stuck", I mean that I start seeing a decreasing rate of error correction. For example, during a successful training, the total error decreases rather quickly as the network learns, like so: ... ... Total error for this training set: 0.0010008071327708653 Total error for this training set: 0.001000750550254843 Total error for this training set: 0.001000693973929822 Total error for this training set: 0.0010006374037948094 Total error for this training set: 0.0010005808398488103 Total error for this training set: 0.0010005242820908169 Total error for this training set: 0.0010004677305198344 Total error for this training set: 0.0010004111851348654 Total error for this training set: 0.0010003546459349181 Total error for this training set: 0.0010002981129189812 Total error for this training set: 0.0010002415860860656 Total error for this training set: 0.0010001850654351723 Total error for this training set: 0.001000128550965301 Total error for this training set: 0.0010000720426754587 Total error for this training set: 0.0010000155405646494 Total error for this training set: 9.99959044631871E-4 Testing trained XOR neural network 0 XOR 0: 0.023956746649767453 0 XOR 1: 0.9736079194769579 1 XOR 0: 0.9735670067093437 1 XOR 1: 0.045068688874314006 However when it gets stuck, the total errors are decreasing, but it seems to be at a decreasing rate: ... ... Total error for this training set: 0.12325486644721295 Total error for this training set: 0.12325486642503929 Total error for this training set: 0.12325486640286581 Total error for this training set: 0.12325486638069229 Total error for this training set: 0.12325486635851894 Total error for this training set: 0.12325486633634561 Total error for this training set: 0.1232548663141723 Total error for this training set: 0.12325486629199914 Total error for this training set: 0.12325486626982587 Total error for this training set: 0.1232548662476525 Total error for this training set: 0.12325486622547954 Total error for this training set: 0.12325486620330656 Total error for this training set: 0.12325486618113349 Total error for this training set: 0.12325486615896045 Total error for this training set: 0.12325486613678775 Total error for this training set: 0.12325486611461482 Total error for this training set: 0.1232548660924418 Total error for this training set: 0.12325486607026936 Total error for this training set: 0.12325486604809655 Total error for this training set: 0.12325486602592373 Total error for this training set: 0.12325486600375107 Total error for this training set: 0.12325486598157878 Total error for this training set: 0.12325486595940628 Total error for this training set: 0.1232548659372337 Total error for this training set: 0.12325486591506139 Total error for this training set: 0.12325486589288918 Total error for this training set: 0.12325486587071677 Total error for this training set: 0.12325486584854453 While I was reading up on neural networks I came across a discussion on local minimas and global minimas and how neural networks don't really "know" which minima its supposed to be going towards. Is my network getting stuck in a local minima instead of a global minima?

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• Salesforce/PHP - Bulk Outbound message (SOAP), Time out issue

  - by Phill Pafford

  Salesforce can send up to 100 requests inside 1 SOAP message. While sending this type of Bulk Ooutbound message request my PHP script finishes executing but SF fails to accept the ACK used to clear the message queue on the Salesforce side of things. Looking at the Outbound message log (monitoring) I see all the messages in a pending state with the Delivery Failure Reason "java.net.SocketTimeoutException: Read timed out". If my script has finished execution, why do I get this error? I have tried these methods to increase the execution time on my server as I have no access on the Salesforce side: set_time_limit(0); // in the script max_execution_time = 360 ; Maximum execution time of each script, in seconds max_input_time = 360 ; Maximum amount of time each script may spend parsing request data memory_limit = 32M ; Maximum amount of memory a script may consume I used the high settings just for testing. Any thoughts as to why this is failing the ACK delivery back to Salesforce? Here is some of the code: This is how I accept and send the ACK file for the imcoming SOAP request $data = 'php://input'; $content = file_get_contents($data); if($content) { respond('true'); } else { respond('false'); } The respond function function respond($tf) { $ACK = <<<ACK <?xml version = "1.0" encoding = "utf-8"?> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <soapenv:Body> <notifications xmlns="http://soap.sforce.com/2005/09/outbound"> <Ack>$tf</Ack> </notifications> </soapenv:Body> </soapenv:Envelope> ACK; print trim($ACK); } These are in a generic script that I include into the script that uses the data for a specific workflow. I can process about 25 requests (That are in 1 SOAP response) but once I go over that I get the timeout error in the Salesforce queue. for 50 requests is usually takes my PHP script 86.77 seconds. Could it be Apache? PHP? I have also tested just accepting the 100 request SOAP response and just accepting and sending the ACK the queue clears out, so I know it's on my side of things. I show no errors in the apache log, the script runs fine. Thanks for any insight into this, --Phill

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• AVAudioRecorder Memory Leak

  - by Eric Ranschau

  I'm hoping someone out there can back me up on this... I've been working on an application that allows the end user to record a small audio file for later playback and am in the process of testing for memory leaks. I continue to very consistently run into a memory leak when the AVAudioRecorder's "stop" method attempts to close the audio file to which it's been recording. This really seems to be a leak in the framework itself, but if I'm being a bonehead you can tell me. To illustrate, I've worked up a stripped down test app that does nothing but start/stop a recording w/ the press of a button. For the sake of simplicty, everything happens in app. delegate as follows: @synthesize audioRecorder, button; @synthesize window; - (BOOL) application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // create compplete path to database NSString *tempPath = NSTemporaryDirectory(); NSString *audioFilePath = [tempPath stringByAppendingString:@"/customStatement.caf"]; // define audio file url NSURL *audioFileURL = [[NSURL alloc] initFileURLWithPath:audioFilePath]; // define audio recorder settings NSDictionary *settings = [[NSDictionary alloc] initWithObjectsAndKeys: [NSNumber numberWithInt:kAudioFormatAppleIMA4], AVFormatIDKey, [NSNumber numberWithInt:1], AVNumberOfChannelsKey, [NSNumber numberWithInt:AVAudioQualityLow], AVSampleRateConverterAudioQualityKey, [NSNumber numberWithFloat:44100], AVSampleRateKey, [NSNumber numberWithInt:8], AVLinearPCMBitDepthKey, nil ]; // define audio recorder audioRecorder = [[AVAudioRecorder alloc] initWithURL:audioFileURL settings:settings error:nil]; [audioRecorder setDelegate:self]; [audioRecorder setMeteringEnabled:YES]; [audioRecorder prepareToRecord]; // define record button button = [UIButton buttonWithType:UIButtonTypeRoundedRect]; [button addTarget:self action:@selector(handleTouch_recordButton) forControlEvents:UIControlEventTouchUpInside]; [button setFrame:CGRectMake(110.0, 217.5, 100.0, 45.0)]; [button setTitle:@"Record" forState:UIControlStateNormal]; [button setTitle:@"Stop" forState:UIControlStateSelected]; // configure the main view controller UIViewController *viewController = [[UIViewController alloc] init]; [viewController.view addSubview:button]; // add controllers to window [window addSubview:viewController.view]; [window makeKeyAndVisible]; // release [audioFileURL release]; [settings release]; [viewController release]; return YES; } - (void) handleTouch_recordButton { if ( ![button isSelected] ) { [button setSelected:YES]; [audioRecorder record]; } else { [button setSelected:NO]; [audioRecorder stop]; } } - (void) dealloc { [audioRecorder release]; [button release]; [window release]; [super dealloc]; } The stack trace from Instruments that shows pretty clearly that the "closeFile" method in the AVFoundation code is leaking...something. You can see a screen shot of the Instruments session here: Developer Forums: AVAudioRecorder Memory Leak Any thoughts would be greatly appreciated!

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• Error accessing a Web Service with SSL

  - by Elie

  I have a program that is supposed to send a file to a web service, which requires an SSL connection. I run the program as follows: SET JAVA_HOME=C:\Program Files\Java\jre1.6.0_07 SET com.ibm.SSL.ConfigURL=ssl.client.props "%JAVA_HOME%\bin\java" -cp ".;Test.jar" ca.mypackage.Main This was works fine, but when I change the first line to SET JAVA_HOME=C:\Program Files\IBM\SDP\runtimes\base_v7\java\jre I get the following error: com.sun.xml.internal.ws.client.ClientTransportException: HTTP transport error: java.net.SocketException: java.lang.ClassNotFoundException: Cannot find the specified class com.ibm.websphere.ssl.protocol.SSLSocketFactory at com.sun.xml.internal.ws.transport.http.client.HttpClientTransport.getOutput(HttpClientTransport.java:119) at com.sun.xml.internal.ws.transport.http.client.HttpTransportPipe.process(HttpTransportPipe.java:140) at com.sun.xml.internal.ws.transport.http.client.HttpTransportPipe.processRequest(HttpTransportPipe.java:86) at com.sun.xml.internal.ws.api.pipe.Fiber.__doRun(Fiber.java:593) at com.sun.xml.internal.ws.api.pipe.Fiber._doRun(Fiber.java:552) at com.sun.xml.internal.ws.api.pipe.Fiber.doRun(Fiber.java:537) at com.sun.xml.internal.ws.api.pipe.Fiber.runSync(Fiber.java:434) at com.sun.xml.internal.ws.client.Stub.process(Stub.java:247) at com.sun.xml.internal.ws.client.sei.SEIStub.doProcess(SEIStub.java:132) at com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:242) at com.sun.xml.internal.ws.client.sei.SyncMethodHandler.invoke(SyncMethodHandler.java:222) at com.sun.xml.internal.ws.client.sei.SEIStub.invoke(SEIStub.java:115) at $Proxy26.fileSubmit(Unknown Source) at com.testing.TestingSoapProxy.fileSubmit(TestingSoapProxy.java:81) at ca.mypackage.Main.main(Main.java:63) Caused by: java.net.SocketException: java.lang.ClassNotFoundException: Cannot find the specified class com.ibm.websphere.ssl.protocol.SSLSocketFactory at javax.net.ssl.DefaultSSLSocketFactory.a(SSLSocketFactory.java:7) at javax.net.ssl.DefaultSSLSocketFactory.createSocket(SSLSocketFactory.java:1) at com.ibm.net.ssl.www2.protocol.https.c.afterConnect(c.java:110) at com.ibm.net.ssl.www2.protocol.https.d.connect(d.java:14) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:902) at com.ibm.net.ssl.www2.protocol.https.b.getOutputStream(b.java:86) at com.sun.xml.internal.ws.transport.http.client.HttpClientTransport.getOutput(HttpClientTransport.java:107) ... 14 more Caused by: java.lang.ClassNotFoundException: Cannot find the specified class com.ibm.websphere.ssl.protocol.SSLSocketFactory at javax.net.ssl.SSLJsseUtil.b(SSLJsseUtil.java:20) at javax.net.ssl.SSLSocketFactory.getDefault(SSLSocketFactory.java:36) at javax.net.ssl.HttpsURLConnection.getDefaultSSLSocketFactory(HttpsURLConnection.java:16) at javax.net.ssl.HttpsURLConnection.<init>(HttpsURLConnection.java:36) at com.ibm.net.ssl.www2.protocol.https.b.<init>(b.java:1) at com.ibm.net.ssl.www2.protocol.https.Handler.openConnection(Handler.java:11) at java.net.URL.openConnection(URL.java:995) at com.sun.xml.internal.ws.api.EndpointAddress.openConnection(EndpointAddress.java:206) at com.sun.xml.internal.ws.transport.http.client.HttpClientTransport.createHttpConnection(HttpClientTransport.java:277) at com.sun.xml.internal.ws.transport.http.client.HttpClientTransport.getOutput(HttpClientTransport.java:103) ... 14 more So it seems that this problem would be related to the JRE I'm using, but what doesn't seem to make sense is that the non-IBM JRE works fine, but the IBM JRE does not. Any ideas, or suggestions?

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• Xuggle codec identification fail

  - by Thiago

  Hi there, I'm trying to run the following Xuggle code: public static boolean convert(String stream) throws IOException, InterruptedException { IMediaReader reader = ToolFactory.makeReader(stream + ".flv"); IMediaWriter writer = ToolFactory.makeWriter(stream + ".mp3", reader); reader.addListener(writer); while (reader.readPacket() != null) ; return true; } Where stream is the file path. But I'm getting the following exception: java.lang.IllegalArgumentException: could not find input codec id at com.xuggle.xuggler.IContainerFormat.establishOutputCodecId(IContainerFormat.java:393) at com.xuggle.xuggler.IContainerFormat.establishOutputCodecId(IContainerFormat.java:327) at com.xuggle.xuggler.IContainerFormat.establishOutputCodecId(IContainerFormat.java:300) at com.xuggle.mediatool.MediaWriter.addStreamFromContainer(MediaWriter.java:1141) at com.xuggle.mediatool.MediaWriter.getStream(MediaWriter.java:1046) at com.xuggle.mediatool.MediaWriter.encodeAudio(MediaWriter.java:837) at com.xuggle.mediatool.MediaWriter.onAudioSamples(MediaWriter.java:1448) at com.xuggle.mediatool.AMediaToolMixin.onAudioSamples(AMediaToolMixin.java:89) at com.xuggle.mediatool.MediaReader.dispatchAudioSamples(MediaReader.java:628) at com.xuggle.mediatool.MediaReader.decodeAudio(MediaReader.java:555) at com.xuggle.mediatool.MediaReader.readPacket(MediaReader.java:469) at <package_name>MediaFile.convert(MediaFile.java:66) at <package_name>.MediaFileTest.shouldConvertExistingFLV(MediaFileTest.java:32) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:73) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:46) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:180) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:41) at org.junit.runners.ParentRunner$1.evaluate(ParentRunner.java:173) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31) at org.junit.runners.ParentRunner.run(ParentRunner.java:220) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) The unit test is the following: @Test public void shouldConvertExistingFLV() throws IOException, InterruptedException { String str = "C:\Program Files\Wowza Media Systems\Wowza Media Server 2\content\Extremists"; //"c:/temp/corneta.flv" boolean result = MediaFile.convert(str); assertTrue(result); } So, why can't he find the codec, since I'm testing for a simple flv to mp3 conversion?

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• What IDE to use for Python

  - by husayt

  As a Python newbie, it is interesting to know what IDE's ("GUIs/editors") others use for Python coding. If you can just give the name (e.g. Textpad, Eclipse ..) that will be enough. If it is already mentioned, you can just vote for it. But if you can also give some more comparative information, that will be much appreciated. Thanks. Update: Results so far PyDev with Eclipse (CP, F, AC, PD, EM, SI, MLS, UML, SC, UT, LN, CF, BM) Komodo (CP, C/F, MLS, PD, AC, SC, SI, BM, LN, CF, CT) Emacs (CP, F, AC, MLS, PD, EM, SC, SI, BM, LN, CF, CT, UT, UML) Vim (CP, F, AC, MLS, SI, BM, LN, CF ) TextMate (Mac, CT, CF, MLS, SI, BM, LN) Gedit (Linux, F, AC, MLS, BM, LN, CT [sort of]) Idle (CP, F, AC) PIDA (Linux, CP, F, AC, MLS, SI, BM, LN, CF)(VIM Based) NotePad++ (Windows) BlueFish (Linux) JEdit (CP, F, BM, LN, CF, MLS) E-Texteditor (TextMate Clone for Windows) WingIde (CP, C, AC, MLS (support for C), PD, EM, SC, SI, BM, LN, CF, CT, UT) Eric Ide (CP, F, AC, PD, EM, SI, LN, CF, UT) Pyscripter (Windows, F, AC, PD, EM, SI, LN, CT, UT) ConTEXT (Windows, C) SPE (F, AC, UML) SciTE (CP, F, MLS, EM, BM, LN, CF, CT, SH) Zeus (W, C, BM, LN, CF, SI, SC, CT) NetBeans (CP, F, PD, UML, AC, MLS, SC, SI, BM, LN, CF, CT, UT, RAD) DABO (CP) BlackAdder (C, CP, CF, SI) PythonWin (W, F, AC, PD, SI, BM, CF) Geany (CP, F, very limited AC, MLS, SI, BM, LN, CF) UliPad (CP, F, AC, PD, MLS, SI, LI, CT, UT, BM) Boa Constructor (CP, F, AC, PD, EM, SI, BM, LN, UML, CF, CT) ScriptDev (W, C, AC, MLS, PD, EM, SI, BM, LN, CF, CT) Spider (CP, F, AC) Editra (CP, F, AC, MLS, SC, SI, BM, LN, CF) Pfaide (Windows, C, AC, MLS, SI, BM, LN, CF, CT) KDevelop (CP, F, MLS, SC, SI, BM, LN, CF) Acronyms used: CP - Cross Platfom C - Commercial F - Free AC - Automatic Code-completion MLS - Multi-Language Support PD - Integrated Python Debugging EM - ErrorMarkup SC - Source Control integration SI - Smart Indent BM - Bracket Matching LN - Line Numbering UML - UML editing / viewing CF - Code Folding CT - Code Templates UT - Unit Testing UID - Gui Designer (e.g. QT, Eric, ..) DB - integrated database support RAD - Rapid app development support I don't mention basics like Syntax highlighting as I expect these by default. This is a just dry list reflecting your feedback and comments, I am not advocating any of these tools. I will keep updating this list as you keep posting your answers. PS. Can you help me to add features of the above editors to the list (like autocomplete, debugging, or etc)?

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• How to use GWT when downloading Files with a Servlet?

  - by molleman

  Hello Guys I am creating a simple project that will allow me to upload and download files using gwt. i am having trouble with the downloading of files that are on my server. For the file upload i used http://code.google.com/p/gwtupload/ and followed the instructions there. My file is stored on the server outside of the website container(on the hard drive), Now when it comes to the downloading of a file, i want a user to press a download button and whatever item is currently selected will download. i dont really know how this will be done i know i need a download servlet public class DownloadAttachmentServlet extends HttpServlet { @Override protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { // TODO Auto-generated method stub super.doGet(req, resp); } @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String fileName = (String) req.getSession().getAttribute("fileName"); YFUser user = (YFUser) req.getSession().getAttribute(TestServiceImpl.SESSION_USER); if (user == null) throw new ServletException("Invalid Session"); InputStream in = null; OutputStream out = resp.getOutputStream(); FileInputStream fIn = new FileInputStream(fileName); byte[] buffer = new byte[4096]; int length; while ((length = in.read(buffer)) > 0){ out.write(buffer, 0, length); } in.close(); out.flush(); } } for the moment i will just pass a fileName string to retrieve the file for testing now i am lost at what to do on the client side, i have a simple public class DownloadFilePanel extends Composite { public DownloadFilePanel(final YFUser user , final String fileName){ final Element downloadIframe = RootPanel.get("__download").getElement(); VerticalPanel content = new VerticalPanel(); content.add(new Label("Download For this File : " + fileName)); Button button = new Button("Download"); button.addClickHandler(new ClickHandler(){ @Override public void onClick(ClickEvent event) { // i do not know what to do here }); content.add(button); initWidget(content); } } above is a simple widget that will supply a panel that will allow for the download of a file based on a fileName as you can see above, i do not know what to do to be able to download the file is there any one that can point me in the right direction?

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• WebClient security error when accessing the world of warcraft armoury

  - by user348446

  Hello World, I am trying to piece together a solution to a problem. Basically I am using Silverlight 4 with C# 4.0 to access the world of warcraft armoury. If anyone has done this - please oh please provide the working .net 4.0 code. The code I am attempting to run is (e.Error contains a securtiy error): private void button10_Click(object sender, RoutedEventArgs e) { string url = @"http://eu.wowarmory.com/guild-info.xml?r=Eonar&n=Gifted and Talented"; WebClient wc = new WebClient(); // HOW DO I ADD A USER AGENT STRING (RESPONSE MAY VARY (I.E. HTML VS XML) IF PAGE THINKS CALL IS NOT CAPABABLE OF SUPPORTING XML TRANSFORMATIONS) //wc.ResponseHeaders["User-Agent"] = "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)"; wc.DownloadStringCompleted += new DownloadStringCompletedEventHandler(wc_DownloadStringCompleted); wc.DownloadStringAsync(new Uri(url)); } void wc_DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e) { if (e.Error == null) { string result = e.Result; XDocument ArmouryXML = XDocument.Parse(result); ShowGuildies(ArmouryXML); } else { MessageBox.Show("Something is complaining about security but not sure what!"); } } Notes: C# 4.0 The armoury is an XML file - but i believe it reverts to html should the request not be from a browser that supports XML transformation. But i don't think I am getting this far. The armoury has a cross domain policy file on it - this may be the cause of the error (not sure! I have uploaded to a production server I am testing it locally using IIS website I am going insane! Websites have made the suggestion that this problem can be overcome by creating a WebProxy - but I haven't the first clue how to do this. It would be great if someone could take on this challenge and show us all that it is possible. I'd prefer a non-proxy solution first, then try a proxy. The error details: e.Error = {System.Security.SecurityException --- System.Security.SecurityException: Security error. at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult) at System.Net.Browser.BrowserHttpWebRequest.<c__DisplayClass5. Any intelligent master coders out there who can solve this in their sleep? Thanks if you can! Pass this on to someone who can if you can't. If you know someone who can't, don't pass it to them, but if you know someone can't then presumedly you know how to solve it and would encourage you to give it a go! Cheers! Dan.

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• IE6 and fieldset background color?

  - by codemonkey613

  Hey, I'm having some difficulty with CSS and IE6 compatibility. URL: http://bit.ly/dlX7cS Problem #1: I put a background image on the fieldset around Canada and United States. In IE6 and IE7, the background bleeds above the border-top of the fieldset. So, I found a fix. It is applied only to IE browsers, and moves the legend up a few pixels, aligning the background correctly. <!-- Fix: IE6/IE7, Legends --> <!--[if lte IE 7]> <style type="text/css"> fieldset { position: relative; } fieldset legend { position: absolute; top: -0.5em; left: 0; } </style> <![endif]--> This fixes IE7. But in IE6, it seems to make my legend for Canada vanish completely. Does anyone have a copy of IE6 they can open my site and tell me if you see Canada label. (I am testing with a multi-IE program, and it keeps crashing. My copy might not be accurate). If it's not there, any suggestions on how to fix it? Also, any suggestion on where I can download working copy of IE6? Problem #2: I have a Google Map embedded using iframe. The width of that iframe is 515px. In Firefox, Chrome, IE7 -- that is the correct alignment. But in IE6, it gets <br/> underneath the Just Energy paragraph beside it. It doesn't fit. I have to change width to 513px for it to fit. Uhm, anyone know where those 2px of difference happen? I removed border, padding, margin from the iframe, but still something is happening. <!-- Google Maps --> <iframe class="gmap" src="http://maps.google.com/maps/ms?hl=en&amp;ie=UTF8&amp;msa=0&amp;msid=100146512697135839835.000481e2a2779e8865863&amp;ll=42,-100&amp;spn=20,80&amp;output=embed" frameborder="0" marginheight="0" marginwidth="0" scrolling="no"></iframe> <!-- / Google Maps --> Er, big headache. lol

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• ASP.NET site move to IIS7 results in gibberish characters in page output

  - by frankadelic

  I have an ASP.NET site that was working fine running on Windows Server 2003 / IIS6. I moved it to Windows Server 2008 / IIS7 and the aspx page output now includes gibberish text. For example: p???? ????? The majority of the page renders properly, but there is gibberish here and there. I have checked the event logs and there is nothing. Any idea what's going on here? How can I fix this? I have noticed that this issue shows up when I include multiple Server.Execute statements in the aspx code: <% Server.Execute("/inc/top.inc"); %> <% Server.Execute("/inc/footer.inc"); %> The .inc files above contain just html. It appears that the files have to be of a significant length to cause the error. Here is the sample html I've been testing with: <div class="logo"> <a href="/"> <img src="/logo.png" alt="logo" width="31" height="29" class="logoimg" /> </a> </div> <div class="logo"> <a href="/"> <img src="/logo.png" alt="logo" width="31" height="29" class="logoimg" /> </a> </div> <div class="logo"> <a href="/"> <img src="/logo.png" alt="logo" width="31" height="29" class="logoimg" /> </a> </div> <div class="logo"> <a href="/"> <img src="/logo.png" alt="logo" width="31" height="29" class="logoimg" /> </a> </div> <div class="logo"> <a href="/"> <img src="/logo.png" alt="logo" width="31" height="29" class="logoimg" /> </a> </div> <div class="logo"> <a href="/"> <img src="/logo.png" alt="logo" width="31" height="29" class="logoimg" /> </a> </div> Also, the gibberish characters appear inconsistently. If I ctrl+F5 the pages, the gibberish characters change and occasionally don't appear at all.

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