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• Ant failed to build

  - by eyal

  Hi, I have build a Java appliction which is using ant.jar (ant 1.8.2) classes for building android application from it's build.xml file with release as target. My Android project has been built by using android create project command, using sdk 2.2. When I run my application for building the Android application I get the following message - build.xml:46: taskdef class com.android.ant.SetupTask cannot be found I have verified the sdk.dir path and the sdk-location path and both are correct. How it can be solved? Thanks, Eyal.

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• Returning a collection of objects from a webmethod

  - by Narmatha Balasundaram

  How do I return a collection of objects from a webmethod? And can this collection of objects be of different types - say of these 3 classes, private class ClassA { int A1; int A2; } private class ClassB { int B1; } private class ClassC { int C1; } ClassA objA = new ClassA(...); ClassB objB = new ClassB(...); ClassC objC = new ClassC(...); How can I return the objects, objA, objB and objC from a method?

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• Java: is Exception class thread-safe?

  - by Vilius Normantas

  As I understand, Java's Exception class is certainly not immutable (methods like initCause and setStackTrace give some clues about that). So is it at least thread-safe? Suppose one of my classes has a field like this: private final Exception myException; Can I safely expose this field to multiple threads? I'm not willing to discuss concrete cases where and why this situation could occur. My question is more about the principle: can I tell that a class which exposes field of Exception type is thread-safe? Another example: class CustomException extends Exception { ... } Is this class thread-safe?

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• How to access project files from NUnit tests

  - by Daren Thomas

  I have some Tests that I run with ReSharpers "Run All Tests from Solution" feature. One of the classes being tested has a dependency on a file in the same folder as the assembly containing it. This file is copied to the output directory via MSBuild (set "Copy To Output Directory" to "Copy always"). Problem: The tests are not being run from the normal assembly output directory, but instead some temporary location in my user profile. Therefore, I don't really know where to look for the file - the test runner does not copy it there. Can I force it to?

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• how to execute two thread simultaneously in java swing?

  - by jcrshankar

  My aim is to select all the files named with MANI.txt which is present in their respective folders and then load path of the MANI.txt files different location in table. After I load the path in the table,I used to select needed path and modifiying those. To load the MANI.txt files taking more time,because it may present more than 30 times in my workspace or etc. until load the files I want to give alarm to the user with help of ProgessBar.Once the list size has been populated I need to disable ProgressBar. Could anyone please help me out on this? import java.awt.*; import javax.swing.*; import javax.swing.table.*; import java.awt.event.*; import java.io.BufferedReader; import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.io.PrintWriter; public class JTableHeaderCheckBox extends JFrame implements ActionListener { Object colNames[] = {"", "Path"}; Object[][] data = {}; DefaultTableModel dtm; JTable table; JButton but; java.util.List list; public void buildGUI() { dtm = new DefaultTableModel(data,colNames); table = new JTable(dtm); table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF); int vColIndex = 0; TableColumn col = table.getColumnModel().getColumn(vColIndex); int width = 10; col.setPreferredWidth(width); int vColIndex1 = 1; TableColumn col1 = table.getColumnModel().getColumn(vColIndex1); int width1 = 500; col1.setPreferredWidth(width1); JFileChooser chooser = new JFileChooser(); //chooser.setCurrentDirectory(new java.io.File(".")); chooser.setDialogTitle("Choose workSpace Path"); chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); chooser.setAcceptAllFileFilterUsed(false); if (chooser.showOpenDialog(this) == JFileChooser.APPROVE_OPTION){ System.out.println("getCurrentDirectory(): " + chooser.getCurrentDirectory()); System.out.println("getSelectedFile() : " + chooser.getSelectedFile().getAbsolutePath()); } String path= chooser.getSelectedFile().getAbsolutePath(); File folder = new File(path); Here I need progress bar GatheringFiles ob = new GatheringFiles(); list=ob.returnlist(folder); for(int x = 0; x < list.size(); x++) { dtm.addRow(new Object[]{new Boolean(false),list.get(x).toString()}); } JPanel pan = new JPanel(); JScrollPane sp = new JScrollPane(table); TableColumn tc = table.getColumnModel().getColumn(0); tc.setCellEditor(table.getDefaultEditor(Boolean.class)); tc.setCellRenderer(table.getDefaultRenderer(Boolean.class)); tc.setHeaderRenderer(new CheckBoxHeader(new MyItemListener())); but = new JButton("REMOVE"); JFrame f = new JFrame(); pan.add(sp); but.move(650, 50); but.addActionListener(this); pan.add(but); f.add(pan); f.setSize(700, 100); f.pack(); f.setLocationRelativeTo(null); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); f.setVisible(true); } class MyItemListener implements ItemListener { public void itemStateChanged(ItemEvent e) { Object source = e.getSource(); if (source instanceof AbstractButton == false) return; boolean checked = e.getStateChange() == ItemEvent.SELECTED; for(int x = 0, y = table.getRowCount(); x < y; x++) { table.setValueAt(new Boolean(checked),x,0); } } } public static void main (String[] args) { SwingUtilities.invokeLater(new Runnable(){ public void run(){ new JTableHeaderCheckBox().buildGUI(); } }); } public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub if(e.getSource()==but) { System.err.println("table.getRowCount()"+table.getRowCount()); for(int x = 0, y = table.getRowCount(); x < y; x++) { if("true".equals(table.getValueAt(x, 0).toString())) { System.err.println(table.getValueAt(x, 0)); System.err.println(list.get(x).toString()); delete(list.get(x).toString()); } } } } public void delete(String a) { String delete = "C:"; System.err.println(a); try { File inFile = new File(a); if (!inFile.isFile()) { System.out.println("Parameter is not an existing file"); return; } //Construct the new file that will later be renamed to the original filename. File tempFile = new File(inFile.getAbsolutePath() + ".tmp"); BufferedReader br = new BufferedReader(new FileReader(inFile)); PrintWriter pw = new PrintWriter(new FileWriter(tempFile)); String line = null; //Read from the original file and write to the new //unless content matches data to be removed. while ((line = br.readLine()) != null) { System.err.println(line); line = line.replace(delete, " "); pw.println(line); pw.flush(); } pw.close(); br.close(); //Delete the original file if (!inFile.delete()) { System.out.println("Could not delete file"); return; } //Rename the new file to the filename the original file had. if (!tempFile.renameTo(inFile)) System.out.println("Could not rename file"); } catch (FileNotFoundException ex) { ex.printStackTrace(); } catch (IOException ex) { ex.printStackTrace(); } } } class CheckBoxHeader extends JCheckBox implements TableCellRenderer, MouseListener { protected CheckBoxHeader rendererComponent; protected int column; protected boolean mousePressed = false; public CheckBoxHeader(ItemListener itemListener) { rendererComponent = this; rendererComponent.addItemListener(itemListener); } public Component getTableCellRendererComponent( JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { if (table != null) { JTableHeader header = table.getTableHeader(); if (header != null) { rendererComponent.setForeground(header.getForeground()); rendererComponent.setBackground(header.getBackground()); rendererComponent.setFont(header.getFont()); header.addMouseListener(rendererComponent); } } setColumn(column); rendererComponent.setText("Check All"); setBorder(UIManager.getBorder("TableHeader.cellBorder")); return rendererComponent; } protected void setColumn(int column) { this.column = column; } public int getColumn() { return column; } protected void handleClickEvent(MouseEvent e) { if (mousePressed) { mousePressed=false; JTableHeader header = (JTableHeader)(e.getSource()); JTable tableView = header.getTable(); TableColumnModel columnModel = tableView.getColumnModel(); int viewColumn = columnModel.getColumnIndexAtX(e.getX()); int column = tableView.convertColumnIndexToModel(viewColumn); if (viewColumn == this.column && e.getClickCount() == 1 && column != -1) { doClick(); } } } public void mouseClicked(MouseEvent e) { handleClickEvent(e); ((JTableHeader)e.getSource()).repaint(); } public void mousePressed(MouseEvent e) { mousePressed = true; } public void mouseReleased(MouseEvent e) { } public void mouseEntered(MouseEvent e) { } public void mouseExited(MouseEvent e) { } } ****************** import java.io.File; import java.util.*; public class GatheringFiles { public static List returnlist(File folder) { List<File> list = new ArrayList<File>(); List<File> list1 = new ArrayList<File>(); getFiles(folder, list); return list; } private static void getFiles(File folder, List<File> list) { folder.setReadOnly(); File[] files = folder.listFiles(); for(int j = 0; j < files.length; j++) { if( "MANI.txt".equals(files[j].getName())) { list.add(files[j]); } if(files[j].isDirectory()) getFiles(files[j], list); } } }

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• Core-Plot graph in a UIViewController

  - by Kenneth

  Hi guys, im trying to put a Coreplot graph in a UIView. Some questions, should i do it in XIB? or should i do it programmically ? If so how should i write the codes? etc. I actually have two Classes. one called GraphView which is supposed to hold the Coreplot graph. Another called CorePlotViewController. Thx for looking guys.

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• How to add/register helpers with Zend Framework

  - by manyxcxi

  I'm just starting out with Zend Framework and am having issues using Zend_Controller_Action_HelperBroker::addPath() to add helpers. I'm not sure if my classes are named incorrectly, I'm giving it the wrong prefix, or what I'm doing wrong so I will post the code and file structure and get out of the way. In Bootstrap.php public function __construct($application) { ... // This works with a manual include_once('../application/plugins/helpers/Csrf.php'); //Zend_Controller_Action_HelperBroker::addHelper(new Application_Controller_Action_Helper_Csrf()); // This isn't picking up my helper class automagically Zend_Controller_Action_HelperBroker::addPath('../application/plugins/helpers','Application_Controller_Action_Helper'); ... } In application/plugins/helpers/Csrf.php class Application_Controller_Action_Helper_Csrf extends Zend_Controller_Action_Helper_Abstract { ... } My directory tree: / application/ ... plugins/ helpers/ Csrf.php CsrfProtect.php ...

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• C# compile finalize method's on runtime?

  - by Royi Namir

  As im reading through 3 books about GC , ive notice some strange fact : C# via CLR CriticalFinalizerObject : the CLR treats this class and classes derived from it in a very special manner what ??? "not find enough memory to COMPILE a method? " IMHO - the code should be already compiled... no ? when Im writing c# code - the whole code is compiled to IL before its running... no? but according to the text - at RUNTIME - he MAY find insufficient memory for compile... Help ?

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• Automatic database generation / migration with perl

  - by pistacchio

  Hi, In Ror or Django or web2py you can "describe" a database (as a set of classes that remaps to tables) and the framework (having being provided with a connection string to the desired database) generates the tables, fields, relations and in the case of RoR and web2py it also keeps it up-to-date (eg, removing a class drops the table, adding a property to the class triggers an "alter table add" etc). Is there any perl module that does the same? Eg, it takes the YAML / XML / JSON description of a database as input and modifies / generates the database accordingly? Thanks in advance.

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• Service locator for generics

  - by vittore

  Hi everyone, I have say a dozen types T which inherit from EntityObject and IDataObject. I have generic the following interface IDataManager<T> where T : EntityObject, IDataObject ... I have also base class for data managers BaseDataManager<T> : IDataManager<T> where T : EntityObject, IDataObject .... And i have particular classes public class Result : EntityObject, IDataObject .... public class ResultDataManager : BaseDataManager<Result> ... I want to implement service locator, which will return instance of IDataManager<T> for T But I stucked how to implement it in a neat way without a lot of castings. Any ideas?

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• Quering distinct values throught related model

  - by matheus.emm

  Hi! I have a simple one-to-many (models.ForeignKey) relationship between two of my model classes: class TeacherAssignment(models.Model): # ... some fields year = models.CharField(max_length=4) class LessonPlan(models.Model): teacher_assignment = models.ForeignKey(TeacherAssignment) # ... other fields I'd like to query my database to get the set of distinct years of TeacherAssignments related to at least one LessonPlan. I'm able to get this set using Django query API if I ignore the relation to LessonPlan: class TeacherAssignment(models.Model): # ... model's fields def get_years(self): year_values = self.objects.all().values_list('year').distinct().order_by('-year') return [yv[0] for yv in year_values if len(yv[0]) == 4] Unfortunately I don't know how to express the condition that the TeacherAssignment must be related to at least one LessonPlan. Any ideas how I'd be able to write the query? Thanks in advance.

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• Are there any open source SimpleTest Test Cases that test PHP SPL interfaces

  - by JW

  I have quite a few objects in my system that implement the PHP SPL Iterator interface. As I write them I also write tests. I know that writing tests is generally NOT a cut 'n paste job. But, when it comes to testing classes that implement Standard PHP Library interfaces, surely it makes sense to have a few script snippets that can be borrowed and dropped in to a Test class - purely to test that particular interface. It seems sensible to have these publicly available. So, I was wondering if you knew of any?

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• Is it possble to make this content box round corner?

  - by jitendra

  Is it possible to make this box's corner round with same html tags. without using any other tag. but i can use css classes. and box height should be depend on content of <p>grr</p> <h2>Nulla Facilisi</h2> <p> Phasellus at turpis lacus. Nulla hendrerit lobortis nibh. In lectus erat, blandit non feugiat vel, accumsan ac dolor. Etiam et ligula vel tortor tempus vehicula porttitor ut ligula. Mauris felis odio, fermentum vel </p>

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• Adding custom validator without using Zend_Form's addElementPrefixPath

  - by nush

  The problem is that I don't use Zend_Form, so I can't use the built in capabilities. I usually look for three things when setting a validator: - its path (usually in library/path/validators/MyValidator.php) - its class name (tried Validators_MyValidator) and - in application.ini, the autoloaderNamespaces[] = "Validators" I've tried different settings/namings/layouts to no avail. When using a validator in my Zend_Validate_Input, an exception occurs, saying that it couldn't find my plugin/validator, the classes being searched only in Zend/Validate with the Zend_Validate prefix (I didn't try this prefix, though). Wasn't there a setting in app.ini that added a prefix and a path?

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• Visual Studio add-in for performance benchmarking

  - by chiccodoro

  I'd like to measure the performance of some code blocks in my c# winforms application. In particular I want to measure performance regression/improvement after some restructuring of the code. So long I've seen the System.Diagnostics.Stopwatch. However, I want to avoid writing measuring code into my classes, I would rather prefer to separate measuring from actual code. As for debugging, you can set breakpoints on several code lines and "jump" from one to the next by "Continue Execution", I imagine something similar for measuring: Mark to lines of code and make Visual Studio display the time elapsing from one to the next. Is there any feature/add-in in that direction?

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• Automatically minifying attribute/element names when using XmlSerializer

  - by frou

  When serializing a C# class using XmlSerializer, the attributes/elements representing the properties of the class will have the same names as they do in the source code. I know you can override this by doing like so: [XmlAttribute("num")] public int NumberOfThingsThatAbcXyz { get; set; } I'd like the generated XML for my classes to be as compact as possible, but obviously still capable of being automatically deserialized on the other side. Is there a way to have these names minified as much as possible without having to manually think of and annotate everything with a short string? The resultant XML being easily human readable isn't a concern.

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• python decorator to add function to list in current scope

  - by AlexH

  Goal: Make a decorator which can modify the scope that it is used in. If it worked: class Blah(): # or perhaps class Blah(ParentClassWhichMakesThisPossible) def one(self): pass @decorated def two(self): pass Blah.decorated ["two"] Why? I essentially want to write classes which can maintain specific dictionaries of methods, so that I can retrieve lists of available methods of different types on a per class basis. errr..... I want to do this: class RuleClass(ParentClass): @rule def blah(self): pass @rule def kapow(self): pass def shazam(self): class OtherRuleClass(ParentClass): @rule def foo(self): pass def bar(self): pass RuleClass.rules.keys() ["blah", "kapow"] OtherRuleClass.rules.keys() ["foo"]

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• PHP - Frameworks, ORM, Encapsulation.

  - by Ian

  Programming languages/environments aside, are there many developers who are using a framework in PHP, ORM and still abide by encapsulation for the DAL/BLL? I'm managing a team of a few developers and am finding that most of the frameworks require me to do daily code inspection because my developers are using the built in ORM. Right now, I've been using a tool to generate the classes and CRUD myself, with an area for them to write additional queries/functions. What's been happening though, is they are creating vulnerabilities by not doing proper checks on data permission, or allowing the key fields to be manipulated in the form. Any suggestions, other than get a new team and a new language (I've seen Python/Ruby frameworks have the same issues).

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• Stable Scala 2.8 plugin

  - by Felix

  Does anyone know if there exists a stable version of the Scala plugin for eclipse, running with Scala 2.8 (any version of scala 2.8...RC or beta or whatever). I like the fact that it compiles 10 times faster than the netbeans plugin, but it is very unstable, and auto-imports doesnt work. Also, sometimes it cant find classes when I hit "run", then I have to clean it again. This is with some random nightly build of the 2.8 eclipse scala plugin. Is there a stable version? If so, can you link me to it? Thanks in advance :)

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• Looking for a syntactic shortcut for accessing dictionaries

  - by Sisiutl

  I have an abstract base class that holds a Dictionary. I'd like inherited classes to be able to access the dictionary fields using a convenient syntax. Currently I have lots of code like this: string temp; int val; if (this.Fields.TryGetValue("Key", out temp)) { if (int.TryParse(temp, out val)) { // do something with val... } } Obviously I can wrap this in utility functions but I'd like to have a cool, convenient syntax for accessing the dictionary fields where I can simply say something like: int result = @Key; Is there any way to do something like this in C# (3.5)?

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• How do I draw a gradated boarder on a polygon using GDI+ via C#/WinForms?

  - by AndyJ

  Hi, I have polygons of various shapes and sizes. They have a solid fill and currently a solid border. I would like to give the polygons a gradient on their edge to soften them. So far I've tried using a Pen with a LinearGradientBrush and whilst the effect it produces is very interesting it's most defintly not what I want ;) I've looked through the System.Drawing.Drawing2D namespace but there didnt seem to be any other classes that would be applicable for this purpose. I've had a search around and the articles that i can find are mostly about creating boarders for rectangles, which are mush easier, or are irrelivent. So to summerise, does anyone have a way of drawing a gradient boarder on a polygon using GDI+?

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• Objective-C Custom extend

  - by ryanjm.mp

  I have a couple classes that have nearly identical code. Only a string or two is different between them. What I would like to do is to make them from another class that defines those functions and then uses constants or something else to define those strings that are different. I'm not sure if "___" is inheritance or extending or what. That is what I need help with. For example: objectA.m: -(void)helloWorld { NSLog("Hello %@",child.name); } objectBob.m: #define name @"Bob" objectJoe.m #define name @"Joe" (I'm not sure if it's legal to define strings, but this gets the point across) It would be ideal if objectBob.m and objectJoe.m didn't have to even define the methods, just their relationship to objectA.m. Is there any way to do something like this? If all else fails I'll just make objectA.m: -(void)helloWorld:(NSString *name) { NSLog("Hello %@",name); } And have the other files call that function (and just #import objectA.m).

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• tools for testing vim plugins

  - by intuited

  I'm looking for some tools for testing vim scripts. Either vim scripts that do unit/functional testing, or classes for some other library (eg Python's unittest module) that make it convenient to run vim with parameters that cause it to do some tests on its environment, and determine from the output whether or not a given test passed. I'm aware of a couple of vim scripts that do unit testing, but they're sort of vaguely documented and may or may not actually be useful: vim-unit: purports "To provide vim scripts with a simple unit testing framework and tools" first and only version (v0.1) was released in 2004 documentation doesn't mention whether or not it works reliably, other than to state that it is "fare [sic] from finished". unit-test.vim: This one also seems pretty experimental, and may not be particularly reliable. May have been abandoned or back-shelved: last commit was in 2009-11 ( 6 months ago) No tagged revisions have been created (ie no releases) So information from people who are using one of those two existent modules, and/or links to other, more clearly usable, options, are very welcome.

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• Tab widget example not running

  - by michbeck

  I'm trying to reproduce the tabwidget example (http://developer.android.com/resources/tutorials/views/hello-tabwidget.html). I'm not really sure what's the problem, I got no errors while compiling, but i cannot see the application on the emulators screen. It would be excellent if maybe anyone could have a look at my classes and tell me what's my mistake? I've packed my project here: http://etanto.com/TabTest.zip here's the console dump while the run: [2010-06-10 09:18:34 - TabTest] Launching a new emulator with Virtual Device 'Virtual1' [2010-06-10 09:18:35 - TabTest] New emulator found: emulator-5554 [2010-06-10 09:18:35 - TabTest] Waiting for HOME ('android.process.acore') to be launched... [2010-06-10 09:19:05 - TabTest] WARNING: Application does not specify an API level requirement! [2010-06-10 09:19:05 - TabTest] Device API version is 8 (Android 2.2) [2010-06-10 09:19:05 - TabTest] HOME is up on device 'emulator-5554' [2010-06-10 09:19:05 - TabTest] Uploading TabTest.apk onto device 'emulator-5554' [2010-06-10 09:19:05 - TabTest] Installing TabTest.apk... [2010-06-10 09:19:22 - TabTest] Success! [2010-06-10 09:19:22 - TabTest] \TabTest\bin\TabTest.apk installed on device [2010-06-10 09:19:22 - TabTest] Done!

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• What is the second best possible way to make this content box round corner (without border-radius)?

  - by jitendra

  Is it possible to make this box's corner round with same html tags. without using any other tag and border-radius property. but i can use css classes and background images. and box height should be depend on content of <p>grr</p> <h2>Nulla Facilisi</h2> <p> Phasellus at turpis lacus. Nulla hendrerit lobortis nibh. In lectus erat, blandit non feugiat vel, accumsan ac dolor. Etiam et ligula vel tortor tempus vehicula porttitor ut ligula. Mauris felis odio, fermentum vel </p> Edit : What is the best possible way to achieve this without css border-radius property which is not supported by internet explorer?

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