List of usage examples for java.lang.reflect Constructor newInstance
@CallerSensitive @ForceInline public T newInstance(Object... initargs) throws InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException
From source file:libepg.epg.section.sdt.ClassGetter.java
public static ServiceDescriptionTableRepeatingPart init(byte[] data) throws Throwable { try {/*from w w w. j av a 2s . c o m*/ Object[] args = { data }; Class<?>[] params = { byte[].class }; Constructor<ServiceDescriptionTableRepeatingPart> constructor = ServiceDescriptionTableRepeatingPart.class .getDeclaredConstructor(params); constructor.setAccessible(true); ServiceDescriptionTableRepeatingPart target = constructor.newInstance(args); return target; } catch (InstantiationException | IllegalAccessException | IllegalArgumentException | SecurityException ex) { LOG.fatal(ex); } catch (InvocationTargetException ex) { throw ex.getCause(); } return null; }
From source file:info.magnolia.module.admininterface.dialogs.ConfiguredDialog.java
/** * @param paragraph//from w w w .ja v a2 s . c om * @param configNode2 * @param request * @param response * @param class1 * @return */ public static ConfiguredDialog getConfiguredDialog(String name, Content configNode, HttpServletRequest request, HttpServletResponse response, Class defaultClass) { // get class name String className = null; try { Class handlerClass = defaultClass; try { className = configNode.getNodeData("class").getString(); //$NON-NLS-1$ if (StringUtils.isNotEmpty(className)) { handlerClass = Class.forName(className); } } catch (Exception e) { log.error(MessageFormat.format("Unable to load class {0}", new Object[] { className })); //$NON-NLS-1$ } Constructor constructor = handlerClass.getConstructor(new Class[] { String.class, HttpServletRequest.class, HttpServletResponse.class, Content.class }); return (ConfiguredDialog) constructor.newInstance(new Object[] { name, request, response, configNode }); } catch (Exception e) { log.error("can't instantiate dialog: ", e); //$NON-NLS-1$ return null; } }
From source file:com.opengamma.util.ReflectionUtils.java
/** * Creates an instance of a class from a constructor. * /*from w w w .j a v a 2s. co m*/ * @param <T> the type * @param constructor the constructor to call, not null * @param args the arguments, not null * @return the constructor, not null * @throws RuntimeException if the class cannot be loaded */ public static <T> T newInstance(final Constructor<T> constructor, final Object... args) { try { return constructor.newInstance(args); } catch (InstantiationException ex) { throw new OpenGammaRuntimeException(ex.getMessage(), ex); } catch (IllegalAccessException ex) { throw new OpenGammaRuntimeException(ex.getMessage(), ex); } catch (InvocationTargetException ex) { if (ex.getCause() instanceof RuntimeException) { throw (RuntimeException) ex.getCause(); } throw new OpenGammaRuntimeException(ex.getMessage(), ex); } }
From source file:com.salas.bb.utils.xml.XmlReaderFactory.java
/** * Create reader for mapped encoding. If the encoding is present in * <code>mapping.properties</code> then the reader will be created. * * @param is input stream to wrap. * @param encoding encoding to use.//from w w w . j a v a 2 s. c om * * @return reader or NULL if failed or not found. */ static Reader createReaderForMappedEncoding(InputStream is, String encoding) { if (encoding == null || is == null) return null; Reader reader = null; String className = (String) readers.get(encoding.toLowerCase()); if (className != null) { try { String pckg = XmlReaderFactory.class.getPackage().getName() + "."; Class readerClass = Class.forName(pckg + className); Constructor constructor = readerClass.getConstructor(new Class[] { InputStream.class }); reader = (Reader) constructor.newInstance(new Object[] { is }); } catch (Exception e) { LOG.log(Level.SEVERE, Strings.error("failed.to.initialize.reader"), e); } } return reader; }
From source file:libepg.common.descriptor.Descriptors.java
public static final Descriptor init(byte[] data) throws InvocationTargetException { try {//from w w w.j ava 2 s .co m Object[] args = { data }; Class<?>[] params = { byte[].class }; Constructor<Descriptor> constructor = Descriptor.class.getDeclaredConstructor(params); constructor.setAccessible(true); Descriptor target = constructor.newInstance(args); return target; } catch (InstantiationException | IllegalAccessException | IllegalArgumentException | NoSuchMethodException | SecurityException ex) { LOG.fatal(ex); } return null; }
From source file:com.qualogy.qafe.business.integration.adapter.MappingAdapter.java
private static Object createServiceObj(String className, ClassLoader classLoader) { Object result = null;//from ww w .j a va 2 s .co m try { if (className == null) throw new UnableToAdaptException("Adapter states null outputclass"); Class<?> clazz = classLoader.loadClass(className); Constructor<?> c = clazz.getConstructor(new Class[0]); c.setAccessible(true); result = c.newInstance(new Object[0]); } catch (InstantiationException e) { throw new UnableToAdaptException( "Cannot instantiate [" + className + "], hint: define a default constructor", e); } catch (IllegalAccessException e) { throw new UnableToAdaptException(e); } catch (Exception e) { throw new UnableToAdaptException(e); } return result; }
From source file:Main.java
public static void setDUMode() { System.err.println("Orion::setDUMode"); try {//from www . ja v a2 s .co m if (successful) { Constructor RegionParamsConstructor = epdControllerRegionParamsClass .getConstructor(new Class[] { Integer.TYPE, Integer.TYPE, Integer.TYPE, Integer.TYPE, epdControllerWaveClass, Integer.TYPE }); Object localRegionParams = RegionParamsConstructor .newInstance(new Object[] { 0, 0, 600, 800, waveEnums[2], 14 }); Method epdControllerSetRegionMethod = epdControllerClass.getMethod("setRegion", new Class[] { String.class, epdControllerRegionClass, epdControllerRegionParamsClass }); epdControllerSetRegionMethod.invoke(null, new Object[] { "Orion", regionEnums[2], localRegionParams }); } } catch (Exception e) { e.printStackTrace(); } }
From source file:org.hawk.service.api.utils.APIUtils.java
@SuppressWarnings({ "deprecation", "restriction" })
public static <T extends TServiceClient> T connectTo(Class<T> clazz, String url, ThriftProtocol thriftProtocol,
final Credentials credentials) throws TTransportException, URISyntaxException {
try {//w ww .ja v a2 s .co m
final URI parsed = new URI(url);
TTransport transport;
if (parsed.getScheme().startsWith("http")) {
final DefaultHttpClient httpClient = APIUtils.createGZipAwareHttpClient();
if (credentials != null) {
httpClient.getCredentialsProvider().setCredentials(new AuthScope(null, -1), credentials);
}
transport = new THttpClient(url, httpClient);
} else {
transport = new TZlibTransport(new TSocket(parsed.getHost(), parsed.getPort()));
transport.open();
}
Constructor<T> constructor = clazz.getDeclaredConstructor(org.apache.thrift.protocol.TProtocol.class);
return constructor.newInstance(thriftProtocol.getProtocolFactory().getProtocol(transport));
} catch (InstantiationException | IllegalAccessException | IllegalArgumentException
| InvocationTargetException | NoSuchMethodException | SecurityException e) {
throw new TTransportException(e);
}
}
From source file:com.chiorichan.factory.groovy.GroovyRegistry.java
public static Script getCachedScript(ScriptingContext context, Binding binding) { try {/*ww w.j ava 2 s .c om*/ // File classFile = FileFunc.buildFile( context.cache(), context.scriptPackage().replace( '.', File.separatorChar ), context.scriptSimpleName() + ".class" ); if (scriptCacheMd5.containsKey(context.scriptClassName())) { if (scriptCacheMd5.get(context.site().getId() + "//" + context.scriptClassName()) .equals(context.md5())) { Class<?> scriptClass = Class.forName(context.scriptClassName()); Constructor<?> con = scriptClass.getConstructor(Binding.class); Script script = (Script) con.newInstance(binding); return script; } } else scriptCacheMd5.put(context.site().getId() + "//" + context.scriptClassName(), context.md5()); } catch (Throwable t) { } return null; }
From source file:com.glaf.jbpm.util.CustomFieldInstantiator.java
public static Object getValue(Class<?> type, Element propertyElement) { Object value = null;//from ww w .j a v a2 s. c om if (type == String.class) { value = propertyElement.getText(); } else if ((type == Integer.class) || (type == int.class)) { value = Integer.parseInt(propertyElement.getTextTrim()); } else if ((type == Long.class) || (type == long.class)) { value = Long.parseLong(propertyElement.getTextTrim()); } else if ((type == Float.class) || (type == float.class)) { value = new Float(propertyElement.getTextTrim()); } else if ((type == Double.class) || (type == double.class)) { value = Double.parseDouble(propertyElement.getTextTrim()); } else if ((type == Boolean.class) || (type == boolean.class)) { value = Boolean.valueOf(propertyElement.getTextTrim()); } else if ((type == Character.class) || (type == char.class)) { value = Character.valueOf(propertyElement.getTextTrim().charAt(0)); } else if ((type == Short.class) || (type == short.class)) { value = Short.valueOf(propertyElement.getTextTrim()); } else if ((type == Byte.class) || (type == byte.class)) { value = Byte.valueOf(propertyElement.getTextTrim()); } else if (type.isAssignableFrom(java.util.Date.class)) { value = DateUtils.toDate(propertyElement.getTextTrim()); } else if (type.isAssignableFrom(List.class)) { value = getCollectionValue(propertyElement, new java.util.ArrayList<Object>()); } else if (type.isAssignableFrom(Set.class)) { value = getCollectionValue(propertyElement, new LinkedHashSet<Object>()); } else if (type.isAssignableFrom(Collection.class)) { value = getCollectionValue(propertyElement, new java.util.ArrayList<Object>()); } else if (type.isAssignableFrom(Map.class)) { value = getMapValue(propertyElement, new LinkedHashMap<Object, Object>()); } else if (type == Element.class) { value = propertyElement; } else { try { Constructor<?> constructor = type.getConstructor(new Class[] { String.class }); if ((propertyElement.isTextOnly()) && (constructor != null)) { value = constructor.newInstance(new Object[] { propertyElement.getTextTrim() }); } } catch (Exception ex) { logger.error("couldn't parse the bean property value '" + propertyElement.asXML() + "' to a '" + type.getName() + "'"); throw new RuntimeException(ex); } } return value; }