List of usage examples for java.lang Class getConstructor
@CallerSensitive public Constructor<T> getConstructor(Class<?>... parameterTypes) throws NoSuchMethodException, SecurityException
From source file:com.github.dozermapper.core.converters.StringConstructorConverter.java
public Object convert(Class destClass, Object srcObj) { String result = (String) stringConverter.convert(destClass, srcObj); try {/*from w w w .j a v a 2 s . c om*/ Constructor constructor = destClass.getConstructor(String.class); // TODO Check, but not catch return constructor.newInstance(result); } catch (NoSuchMethodException e) { // just return the string return result; } catch (Exception e) { throw new ConversionException(e); } }
From source file:com.linkedin.cubert.operator.CubeOperator.java
private static Object instantiateObject(Class<?> cls, JsonNode constructorArgs) throws InstantiationException, IllegalAccessException, IllegalArgumentException, SecurityException, InvocationTargetException, NoSuchMethodException { if (constructorArgs == null || constructorArgs.isNull()) return cls.newInstance(); Object[] args = new Object[constructorArgs.size()]; Class<?>[] argClasses = new Class[args.length]; for (int i = 0; i < args.length; i++) { args[i] = JsonUtils.asObject(constructorArgs.get(i)); argClasses[i] = args[i].getClass(); }//from w ww. j ava2 s . co m return cls.getConstructor(argClasses).newInstance(args); }
From source file:net.gplatform.sudoor.server.security.model.filter.CustomizeRequestFilter.java
@Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { HttpServletRequest httpRequest = (HttpServletRequest) request; logger.debug("CustomizeRequestFilter Start to Customize"); logger.debug("Original request -> {}", request); ServletRequest newRequestObject = null; try {/*from ww w . ja v a 2 s . c om*/ Class newRequestClass = Class.forName(requestFullName); Constructor newRequestConstructor = newRequestClass.getConstructor(HttpServletRequest.class); newRequestObject = (ServletRequest) newRequestConstructor.newInstance(request); } catch (Exception e) { logger.error("Can not customize request", e); } if (newRequestObject == null) { logger.debug("Execute Chain with original request"); chain.doFilter(request, response); } else { logger.debug("Execute Chain with new request -> {}", newRequestObject); chain.doFilter(newRequestObject, response); } }
From source file:fitnesse.authentication.PasswordFile.java
public PasswordCipher instantiateCipher(String cipherClassName) { try {// w w w . j ava2 s . com Class<?> cipherClass = Class.forName(cipherClassName); Constructor<?> constructor = cipherClass.getConstructor(new Class[] {}); cipher = (PasswordCipher) constructor.newInstance(); } catch (InstantiationException e) { throw new TodoException(e); } catch (IllegalAccessException e) { throw new TodoException(e); } catch (InvocationTargetException e) { throw new TodoException(e); } catch (ClassNotFoundException e) { throw new TodoException(e); } catch (NoSuchMethodException e) { throw new TodoException(e); } return cipher; }
From source file:com.netflix.paas.config.base.DynamicProxyArchaeusConfigurationFactory.java
@SuppressWarnings({ "unchecked", "static-access" })
public <T> T get(Class<T> configClass, DynamicPropertyFactory propertyFactory,
AbstractConfiguration configuration) throws Exception {
final Map<String, Supplier<?>> methods = ConfigurationProxyUtils.getMethodSuppliers(configClass,
propertyFactory, configuration);
if (configClass.isInterface()) {
Class<?> proxyClass = Proxy.getProxyClass(configClass.getClassLoader(), new Class[] { configClass });
return (T) proxyClass.getConstructor(new Class[] { InvocationHandler.class })
.newInstance(new Object[] { new InvocationHandler() {
@Override// www. j a va 2s . c o m
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
Supplier<?> supplier = (Supplier<?>) methods.get(method.getName());
return supplier.get();
}
} });
} else {
final Enhancer enhancer = new Enhancer();
final Object obj = (T) enhancer.create(configClass, new net.sf.cglib.proxy.InvocationHandler() {
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
Supplier<?> supplier = (Supplier<?>) methods.get(method.getName());
if (supplier == null) {
return method.invoke(proxy, args);
}
return supplier.get();
}
});
ConfigurationProxyUtils.assignFieldValues(obj, configClass, propertyFactory, configuration);
return (T) obj;
}
}
From source file:com.voa.weixin.mission.MissionManager.java
private void init() { Document doc = null;//from ww w.j a v a 2 s . c o m try { doc = WeixinUtils.getDocumentResource("weixin.mission.xml"); } catch (Exception e) { logger.warn("can't find or parser weixin.mission.xml:" + e.getMessage()); } if (doc == null) return; List<Element> missionEs = doc.getRootElement().elements("mission"); for (Element missionE : missionEs) { String name = missionE.elementText("name"); String period = missionE.elementText("period"); String delay = missionE.elementText("delay"); String className = missionE.elementText("class"); try { Class clz = Class.forName(className); Constructor<Mission> constructor = clz.getConstructor(String.class); Mission mission = constructor.newInstance(name); mission.setDelay((Integer.valueOf(delay) * 1000)); mission.setPeriod((Integer.valueOf(period) * 1000)); missions.put(name, mission); timer.schedule(mission, mission.getDelay(), mission.getPeriod()); } catch (Exception e) { logger.warn("mission can't be instance : " + name); logger.warn("cause by " + e.getMessage()); } } }
From source file:com.otterca.common.crypto.CryptoConfiguration.java
/** * Get utility class.// w ww . j av a2 s . c o m * * @return */ @Bean public synchronized X509CertificateUtil getX509CertificateUtil() { if (x509CertUtil == null) { String classname = bundle.getString("X509CertificateUtil.classname"); try { LOG.debug("using {} for X509CertificiateUtil class", classname); Class<?> c = this.getClass().getClassLoader().loadClass(classname); x509CertUtil = (X509CertificateUtil) c.getConstructor(Void.class).newInstance(); } catch (ClassNotFoundException e) { LOG.warn("unable to load class {}", classname, e); } catch (NoSuchMethodException e) { LOG.warn("unable to load class {}", classname, e); } catch (InvocationTargetException e) { LOG.warn("unable to load class {}", classname, e); } catch (IllegalAccessException e) { LOG.warn("unable to load class {}", classname, e); } catch (InstantiationException e) { LOG.warn("unable to load class {}", classname, e); } } return x509CertUtil; }
From source file:com.netflix.paas.config.base.JavaAssistArchaeusConfigurationFactory.java
@SuppressWarnings({ "unchecked", "static-access" })
public <T> T get(Class<T> configClass, DynamicPropertyFactory propertyFactory,
AbstractConfiguration configuration) throws Exception {
final Map<String, Supplier<?>> methods = ConfigurationProxyUtils.getMethodSuppliers(configClass,
propertyFactory, configuration);
if (configClass.isInterface()) {
Class<?> proxyClass = Proxy.getProxyClass(configClass.getClassLoader(), new Class[] { configClass });
return (T) proxyClass.getConstructor(new Class[] { InvocationHandler.class })
.newInstance(new Object[] { new InvocationHandler() {
@Override//www . j a v a 2s . c om
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
Supplier<?> supplier = (Supplier<?>) methods.get(method.getName());
if (supplier == null) {
return method.invoke(proxy, args);
}
return supplier.get();
}
} });
} else {
final Enhancer enhancer = new Enhancer();
final Object obj = (T) enhancer.create(configClass, new net.sf.cglib.proxy.InvocationHandler() {
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
Supplier<?> supplier = (Supplier<?>) methods.get(method.getName());
if (supplier == null) {
return method.invoke(proxy, args);
}
return supplier.get();
}
});
ConfigurationProxyUtils.assignFieldValues(obj, configClass, propertyFactory, configuration);
return (T) obj;
}
}
From source file:com.flozano.socialauth.AbstractProvider.java
@Override public <T> T getPlugin(final Class<T> clazz) throws Exception { Class<? extends Plugin> plugin = pluginsMap.get(clazz); Constructor<? extends Plugin> cons = plugin.getConstructor(ProviderSupport.class); ProviderSupport support = new ProviderSupport(getOauthStrategy()); Plugin obj = cons.newInstance(support); return (T) obj; }
From source file:org.malaguna.cmdit.service.CommandRunner.java
/** * Dada una clase de un comando, instancia el mismo apropiadamente * /*w ww. j ava 2s. co m*/ * @param clazz * @return */ protected Command createCommand(Class<? extends Command> clazz) { Command comand = null; //Build a new command using Web Application Context (wac) try { Constructor<?> c = clazz.getConstructor(BeanFactory.class); comand = (Command) c.newInstance(getBeanFactory()); } catch (Exception e) { logger.error("Error creating new command [" + clazz.toString() + "] : " + e.getMessage()); } return comand; }