private ClassLoader getRootLoader() { ClassLoader ret; for (ret = this.getClass().getClassLoader(); ret != null && ret.getParent() != null; ret = ret.getParent()) {} return ret; }
Class<?> getPluginClass(String packageName, String className) throws NameNotFoundException, ClassNotFoundException { Context pluginContext = this.mAppContext.createPackageContext( packageName, Context.CONTEXT_INCLUDE_CODE | Context.CONTEXT_IGNORE_SECURITY); ClassLoader pluginCL = pluginContext.getClassLoader(); return pluginCL.loadClass(className); }
/** * The value of <code>get(uidClassID)</code> must be the <code>String</code> name of a class that * implements the corresponding <code>ComponentUI</code> class. If the class hasn't been loaded * before, this method looks up the class with <code>uiClassLoader.loadClass()</code> if a non * <code>null</code> class loader is provided, <code>classForName()</code> otherwise. * * <p>If a mapping for <code>uiClassID</code> exists or if the specified class can't be found, * return <code>null</code>. * * <p>This method is used by <code>getUI</code>, it's usually not necessary to call it directly. * * @param uiClassID a string containing the class ID * @param uiClassLoader the object which will load the class * @return the value of <code>Class.forName(get(uidClassID))</code> * @see #getUI */ public Class<? extends ComponentUI> getUIClass(String uiClassID, ClassLoader uiClassLoader) { try { String className = (String) get(uiClassID); if (className != null) { ReflectUtil.checkPackageAccess(className); Class cls = (Class) get(className); if (cls == null) { if (uiClassLoader == null) { cls = SwingUtilities.loadSystemClass(className); } else { cls = uiClassLoader.loadClass(className); } if (cls != null) { // Save lookup for future use, as forName is slow. put(className, cls); } } return cls; } } catch (ClassNotFoundException e) { return null; } catch (ClassCastException e) { return null; } return null; }
/** * Get the current thread's context class loader which is set to the CommonClassLoader by * ApplicationServer * * @return the thread's context classloader if it exists; else the system class loader. */ public static ClassLoader getClassLoader() { if (Thread.currentThread().getContextClassLoader() != null) { return Thread.currentThread().getContextClassLoader(); } else { return ClassLoader.getSystemClassLoader(); } }
public boolean hasNext() { if (nextProc != null) return true; else { if (!names.hasNext()) return false; else { String processorName = names.next(); Processor processor; try { try { processor = (Processor) (processorCL.loadClass(processorName).newInstance()); } catch (ClassNotFoundException cnfe) { log.error("proc.processor.not.found", processorName); return false; } catch (ClassCastException cce) { log.error("proc.processor.wrong.type", processorName); return false; } catch (Exception e) { log.error("proc.processor.cant.instantiate", processorName); return false; } } catch (ClientCodeException e) { throw e; } catch (Throwable t) { throw new AnnotationProcessingError(t); } nextProc = processor; return true; } } }
/** * This function loads a class from file into the JVM given its fully-qualified name. * * @param classInfo the fully-qualified class name * @return a Class object representing the class name if such a class is defined, otherwise null */ private static Class<?> getClass(String classInfo) { try { return ClassLoader.getSystemClassLoader().loadClass(classInfo); } catch (ClassNotFoundException e) { throw new RuntimeException(e.toString()); } }
/* STATIC ACCESSORY METHODS */ public static Class getClassOfBean(ClassLoader classLoader, String clazz) { Class cls = null; try { cls = classLoader.loadClass(clazz); } catch (ClassNotFoundException cnfe) { } return cls; }
@SuppressWarnings("unchecked") public void addDefaultValue(String className, JSONObject oper) throws Exception { ObjectMapper defaultValueMapper = ObjectMapperFactory.getOperatorValueSerializer(); Class<? extends Operator> clazz = (Class<? extends Operator>) classLoader.loadClass(className); if (clazz != null) { Operator operIns = clazz.newInstance(); String s = defaultValueMapper.writeValueAsString(operIns); oper.put("defaultValue", new JSONObject(s).get(className)); } }
public static void main(String[] args) throws Exception { ClassLoader.getSystemClassLoader().setDefaultAssertionStatus(true); // Enable asserts new ProcessFiles(new AtUnit(), "class").start(args); if (failures == 0) Print.print("OK (" + testsRun + " tests)"); else { Print.print("(" + testsRun + " tests)"); Print.print("\n>>> " + failures + " FAILURE" + (failures > 1 ? "S" : "") + " <<<"); for (String failed : failedTests) Print.print(" " + failed); } }
public OperatorDiscoverer(String[] jars) { URL[] urls = new URL[jars.length]; for (int i = 0; i < jars.length; i++) { pathsToScan.add(jars[i]); try { urls[i] = new URL("file://" + jars[i]); } catch (MalformedURLException ex) { throw new RuntimeException(ex); } } classLoader = new URLClassLoader(urls, ClassLoader.getSystemClassLoader()); }
public static Properties getPropertiesFromFile(String file) throws IOException { InputStream is = ClassLoader.getSystemResourceAsStream(file); if (is != null) { Properties config = new Properties(); config.load(is); return config; } else { String remoteclient = "/" + file; InputStream is2 = Utility.class.getResourceAsStream(remoteclient); Properties config = new Properties(); config.load(is2); return config; } }
@SuppressWarnings("unchecked") public Class<? extends Operator> getOperatorClass(String className) throws ClassNotFoundException { if (CollectionUtils.isEmpty(operatorClassNames)) { loadOperatorClass(); } Class<?> clazz = classLoader.loadClass(className); if (!Operator.class.isAssignableFrom(clazz)) { throw new IllegalArgumentException("Argument must be a subclass of Operator class"); } return (Class<? extends Operator>) clazz; }
/** Look on disk for an editor with the class name 'ocName'. */ PluggableEditor loadEditorFromDisk(String ocName) { // if here, we need to look on disk for a pluggable editor class... log.finer("looking for ocName: " + ocName); try { Class c = myLoader.loadClass(ocName); Constructor constructor = c.getConstructor(new Class[0]); // XXX If the pluggable editor has an error in the constructor, under some // XXX circumstances it can fail so badly that this call never returns, and // XXX the thread hangs! It doesn't even get to the exception handler below... // XXX but sometimes if the constructor fails everything works as expected. Wierd. PluggableEditor editor = (PluggableEditor) constructor.newInstance(new Object[0]); editors.put(ocName, editor); // add the new editor to our list return editor; } catch (Exception e) // expected condition - just means no pluggable editor available { if (e instanceof InvocationTargetException) // rare exception - an error was encountered in the plugin's // constructor. { log.warning("unable to load special editor for: '" + ocName + "' " + e); if (JXConfig.debugLevel >= 1) { log.warning("Error loading plugin class: "); ((InvocationTargetException) e).getTargetException().printStackTrace(); } } log.log(Level.FINEST, "'Expected' Error loading " + ocName, e); editors.put(ocName, NONE); // add a blank place holder - we can't load // an editor for this, and there's no point looking again. (change if want dynamic loading, // i.e. look *every* time) } return null; // only here if an error has occured. }
/** * Creates a new <code>java.awt.Frame</code>. This frame is the root for the AWT components that * will be embedded within the composite. In order for the embedding to succeed, the composite * must have been created with the SWT.EMBEDDED style. * * <p>IMPORTANT: As of JDK1.5, the embedded frame does not receive mouse events. When a * lightweight component is added as a child of the embedded frame, the cursor does not change. In * order to work around both these problems, it is strongly recommended that a heavyweight * component such as <code>java.awt.Panel</code> be added to the frame as the root of all * components. * * @param parent the parent <code>Composite</code> of the new <code>java.awt.Frame</code> * @return a <code>java.awt.Frame</code> to be the parent of the embedded AWT components * @exception IllegalArgumentException * <ul> * <li>ERROR_NULL_ARGUMENT - if the parent is null * <li>ERROR_INVALID_ARGUMENT - if the parent Composite does not have the SWT.EMBEDDED style * </ul> * * @since 3.0 */ public static Frame new_Frame(final Composite parent) { if (parent == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); if ((parent.getStyle() & SWT.EMBEDDED) == 0) { SWT.error(SWT.ERROR_INVALID_ARGUMENT); } final int /*long*/ handle = parent.view.id; Class clazz = null; try { String className = embeddedFrameClass != null ? embeddedFrameClass : "apple.awt.CEmbeddedFrame"; if (embeddedFrameClass == null) { clazz = Class.forName(className, true, ClassLoader.getSystemClassLoader()); } else { clazz = Class.forName(className); } } catch (ClassNotFoundException cne) { SWT.error(SWT.ERROR_NOT_IMPLEMENTED, cne); } catch (Throwable e) { SWT.error(SWT.ERROR_UNSPECIFIED, e, " [Error while starting AWT]"); } initializeSwing(); Object value = null; Constructor constructor = null; try { constructor = clazz.getConstructor(new Class[] {long.class}); value = constructor.newInstance(new Object[] {new Long(handle)}); } catch (Throwable e) { SWT.error(SWT.ERROR_NOT_IMPLEMENTED, e); } final Frame frame = (Frame) value; frame.addNotify(); parent.setData(EMBEDDED_FRAME_KEY, frame); /* Forward the iconify and deiconify events */ final Listener shellListener = new Listener() { public void handleEvent(Event e) { switch (e.type) { case SWT.Deiconify: EventQueue.invokeLater( new Runnable() { public void run() { frame.dispatchEvent(new WindowEvent(frame, WindowEvent.WINDOW_DEICONIFIED)); } }); break; case SWT.Iconify: EventQueue.invokeLater( new Runnable() { public void run() { frame.dispatchEvent(new WindowEvent(frame, WindowEvent.WINDOW_ICONIFIED)); } }); break; } } }; Shell shell = parent.getShell(); shell.addListener(SWT.Deiconify, shellListener); shell.addListener(SWT.Iconify, shellListener); /* * Generate the appropriate events to activate and deactivate * the embedded frame. This is needed in order to make keyboard * focus work properly for lightweights. */ Listener listener = new Listener() { public void handleEvent(Event e) { switch (e.type) { case SWT.Dispose: Shell shell = parent.getShell(); shell.removeListener(SWT.Deiconify, shellListener); shell.removeListener(SWT.Iconify, shellListener); parent.setVisible(false); EventQueue.invokeLater( new Runnable() { public void run() { try { frame.dispose(); } catch (Throwable e) { } } }); break; case SWT.FocusIn: EventQueue.invokeLater( new Runnable() { public void run() { if (frame.isActive()) return; try { Class clazz = frame.getClass(); Method method = clazz.getMethod( "synthesizeWindowActivation", new Class[] {boolean.class}); if (method != null) method.invoke(frame, new Object[] {new Boolean(true)}); } catch (Throwable e) { e.printStackTrace(); } } }); break; case SWT.Deactivate: EventQueue.invokeLater( new Runnable() { public void run() { if (!frame.isActive()) return; try { Class clazz = frame.getClass(); Method method = clazz.getMethod( "synthesizeWindowActivation", new Class[] {boolean.class}); if (method != null) method.invoke(frame, new Object[] {new Boolean(false)}); } catch (Throwable e) { e.printStackTrace(); } } }); break; } } }; parent.addListener(SWT.FocusIn, listener); parent.addListener(SWT.Deactivate, listener); parent.addListener(SWT.Dispose, listener); parent .getDisplay() .asyncExec( new Runnable() { public void run() { if (parent.isDisposed()) return; final Rectangle clientArea = parent.getClientArea(); EventQueue.invokeLater( new Runnable() { public void run() { frame.setSize(clientArea.width, clientArea.height); frame.validate(); // Bug in Cocoa AWT? For some reason the frame isn't showing up on first // draw. // Toggling visibility seems to be the only thing that works. frame.setVisible(false); frame.setVisible(true); } }); } }); return frame; }
public static void main(String[] args) throws Exception { System.out.println( "Checking that all known MBeans that are " + "NotificationBroadcasters have sane " + "MBeanInfo.getNotifications()"); System.out.println("Checking platform MBeans..."); checkPlatformMBeans(); URL codeBase = ClassLoader.getSystemResource("javax/management/MBeanServer.class"); if (codeBase == null) { throw new Exception("Could not determine codeBase for " + MBeanServer.class); } System.out.println(); System.out.println("Looking for standard MBeans..."); String[] classes = findStandardMBeans(codeBase); System.out.println("Testing standard MBeans..."); for (int i = 0; i < classes.length; i++) { String name = classes[i]; Class<?> c; try { c = Class.forName(name); } catch (Throwable e) { System.out.println(name + ": cannot load (not public?): " + e); continue; } if (!NotificationBroadcaster.class.isAssignableFrom(c)) { System.out.println(name + ": not a NotificationBroadcaster"); continue; } if (Modifier.isAbstract(c.getModifiers())) { System.out.println(name + ": abstract class"); continue; } NotificationBroadcaster mbean; Constructor<?> constr; try { constr = c.getConstructor(); } catch (Exception e) { System.out.println(name + ": no public no-arg constructor: " + e); continue; } try { mbean = (NotificationBroadcaster) constr.newInstance(); } catch (Exception e) { System.out.println(name + ": no-arg constructor failed: " + e); continue; } check(mbean); } System.out.println(); System.out.println("Testing some explicit cases..."); check(new RelationService(false)); /* We can't do this: check(new RequiredModelMBean()); because the Model MBean spec more or less forces us to use the names GENERIC and ATTRIBUTE_CHANGE for its standard notifs. */ checkRMIConnectorServer(); System.out.println(); if (!suspicious.isEmpty()) System.out.println("SUSPICIOUS CLASSES: " + suspicious); if (failed.isEmpty()) System.out.println("TEST PASSED"); else { System.out.println("TEST FAILED: " + failed); System.exit(1); } }
public void loadContents() { // read from the class (operations and atributes) Debug.assert( getReference() != null, "my own ref null"); org.omg.CORBA.StructDef myReference = org.omg.CORBA.StructDefHelper.narrow( getReference()); Debug.assert( myReference != null, "narrow failed for " + getReference() ); /* load nested definitions from interfacePackage directory */ String[] classes = null; if( my_dir != null ) { classes = my_dir.list( new IRFilenameFilter(".class") ); // load class files in this interface's Package directory if( classes != null) { for( int j = 0; j < classes.length; j++ ) { try { org.jacorb.util.Debug.output(2, "Struct " +name+ " tries " + full_name.replace('.', fileSeparator) + "Package" + fileSeparator + classes[j].substring( 0, classes[j].indexOf(".class")) ); ClassLoader loader = getClass().getClassLoader(); if( loader == null ) { loader = RepositoryImpl.loader; } Class cl = loader.loadClass( ( full_name.replace('.', fileSeparator) + "Package" + fileSeparator + classes[j].substring( 0, classes[j].indexOf(".class")) ).replace( fileSeparator, '/') ); Contained containedObject = Contained.createContained( cl, path, myReference, containing_repository ); if( containedObject == null ) continue; org.omg.CORBA.Contained containedRef = Contained.createContainedReference(containedObject); if( containedObject instanceof ContainerType ) ((ContainerType)containedObject).loadContents(); containedRef.move( myReference, containedRef.name(), containedRef.version() ); org.jacorb.util.Debug.output(2, "Struct " + full_name + " loads "+ containedRef.name() ); contained.put( containedRef.name() , containedRef ); containedLocals.put( containedRef.name(), containedObject ); } catch ( Exception e ) { e.printStackTrace(); } } } } }
public OperatorDiscoverer() { classLoader = ClassLoader.getSystemClassLoader(); }
public java.net.URL getResource(String name) { return ClassLoader.getSystemResource(name); }
public InputStream getResourceAsStream(String name) { return ClassLoader.getSystemResourceAsStream(name); }