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:com.adaptris.core.fs.FsHelper.java
public static FileFilter createFilter(String filterExpression, String filterImpl) throws Exception { FileFilter result = null;/* w w w .jav a 2 s . c om*/ if (isEmpty(filterExpression)) { result = new NoOpFileFilter(); } else { Class[] paramTypes = { filterExpression.getClass() }; Object[] args = { filterExpression }; Class c = Class.forName(filterImpl); Constructor cnst = c.getDeclaredConstructor(paramTypes); result = (FileFilter) cnst.newInstance(args); } return logWarningIfRequired(result); }
From source file:com.mobiperf.util.MeasurementJsonConvertor.java
public static MeasurementTask makeMeasurementTaskFromJson(JSONObject json, Context context) throws IllegalArgumentException { try {/* w w w. j av a 2s .com*/ String type = String.valueOf(json.getString("type")); Class taskClass = MeasurementTask.getTaskClassForMeasurement(type); Method getDescMethod = taskClass.getMethod("getDescClass"); // The getDescClassForMeasurement() is static and takes no arguments Class descClass = (Class) getDescMethod.invoke(null, (Object[]) null); MeasurementDesc measurementDesc = (MeasurementDesc) gson.fromJson(json.toString(), descClass); Object[] cstParams = { measurementDesc, context }; Constructor<MeasurementTask> constructor = taskClass.getConstructor(MeasurementDesc.class, Context.class); return constructor.newInstance(cstParams); } catch (JSONException e) { throw new IllegalArgumentException(e); } catch (SecurityException e) { Logger.w(e.getMessage()); throw new IllegalArgumentException(e); } catch (NoSuchMethodException e) { Logger.w(e.getMessage()); throw new IllegalArgumentException(e); } catch (IllegalArgumentException e) { Logger.w(e.getMessage()); throw new IllegalArgumentException(e); } catch (InstantiationException e) { Logger.w(e.getMessage()); throw new IllegalArgumentException(e); } catch (IllegalAccessException e) { Logger.w(e.getMessage()); throw new IllegalArgumentException(e); } catch (InvocationTargetException e) { Logger.w(e.toString()); throw new IllegalArgumentException(e); } }
From source file:edu.cornell.mannlib.vitro.webapp.edit.n3editing.configuration.preprocessors.utils.ProcessDataGetterN3Utils.java
private static ProcessDataGetterN3 instantiateClass(String processorClass, JSONObject jsonObject) { ProcessDataGetterN3 pn = null;/*w w w . j a v a 2s . co m*/ try { Class<?> clz = Class.forName(processorClass); Constructor<?>[] ctList = clz.getConstructors(); for (Constructor<?> ct : ctList) { Class<?>[] parameterTypes = ct.getParameterTypes(); if (parameterTypes.length > 0 && parameterTypes[0].isAssignableFrom(jsonObject.getClass())) { pn = (ProcessDataGetterN3) ct.newInstance(jsonObject); } else { pn = (ProcessDataGetterN3) ct.newInstance(); } } } catch (Exception ex) { log.error("Error occurred instantiating " + processorClass, ex); } return pn; }
From source file:libepg.epg.section.SectionBodyTest.java
private static final SectionBody init(Object[] args) throws NoSuchMethodException, InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException { SectionBody target;/*from w w w.ja v a 2s . com*/ Class<?>[] params = { TABLE_ID.class, byte[].class }; Constructor<SectionBody> constructor = SectionBody.class.getDeclaredConstructor(params); constructor.setAccessible(true); target = constructor.newInstance(args); return target; }
From source file:it.doqui.index.ecmengine.client.backoffice.EcmEngineBackofficeDelegateFactory.java
private static EcmEngineBackofficeDelegate getClassInstance(String ecmEngineBkoDelegateImplName, Log logger) throws EcmEngineBackofficeDelegateInstantiationException { EcmEngineBackofficeDelegate classInstance = null; logger.debug("[EcmEngineBackofficeDelegateFactory::getClassInstance] BEGIN"); try {/*from ww w. ja v a2 s.c om*/ logger.debug("[EcmEngineBackofficeDelegateFactory::getClassInstance] " + "Caricamento classe: " + ecmEngineBkoDelegateImplName); final Class delegateClass = Class.forName(ecmEngineBkoDelegateImplName); final Constructor constructor = delegateClass.getConstructor(new Class[] { Log.class }); classInstance = (EcmEngineBackofficeDelegate) constructor.newInstance(new Object[] { logger }); } catch (ClassNotFoundException e) { logger.error("[EcmEngineBackofficeDelegateFactory::getClassInstance] " + "FATAL: classe non trovata."); throw new EcmEngineBackofficeDelegateInstantiationException("Classe non trovata.", e); } catch (NoSuchMethodException e) { logger.error("[EcmEngineBackofficeDelegateFactory::getClassInstance] " + "FATAL: nessun costruttore compatibile."); throw new EcmEngineBackofficeDelegateInstantiationException("Nessun costruttore compatibile.", e); } catch (InstantiationException e) { logger.error( "[EcmEngineBackofficeDelegateFactory::getClassInstance] " + "FATAL: errore di istanziazione."); throw new EcmEngineBackofficeDelegateInstantiationException("Errore di istanziazione.", e); } catch (IllegalAccessException e) { logger.error("[EcmEngineBackofficeDelegateFactory::getClassInstance] " + "FATAL: errore di accesso."); throw new EcmEngineBackofficeDelegateInstantiationException("Errore di accesso.", e); } catch (InvocationTargetException e) { logger.error("[EcmEngineBackofficeDelegateFactory::getClassInstance] " + "FATAL: eccezione nel target invocato."); throw new EcmEngineBackofficeDelegateInstantiationException("Eccezione nel target invocato.", e); } finally { logger.debug("[EcmEngineBackofficeDelegateFactory::getClassInstance] END"); } return classInstance; }
From source file:com.google.wireless.speed.speedometer.util.MeasurementJsonConvertor.java
@SuppressWarnings("unchecked") public static MeasurementTask makeMeasurementTaskFromJson(JSONObject json, Context context) throws IllegalArgumentException { try {//from w ww . j a v a 2s . c om String type = String.valueOf(json.getString("type")); Class taskClass = MeasurementTask.getTaskClassForMeasurement(type); Method getDescMethod = taskClass.getMethod("getDescClass"); // The getDescClassForMeasurement() is static and takes no arguments Class descClass = (Class) getDescMethod.invoke(null, (Object[]) null); MeasurementDesc measurementDesc = gson.fromJson(json.toString(), descClass); Object[] cstParams = { measurementDesc, context }; Constructor<MeasurementTask> constructor = taskClass.getConstructor(MeasurementDesc.class, Context.class); return constructor.newInstance(cstParams); } catch (JSONException e) { throw new IllegalArgumentException(e); } catch (SecurityException e) { Log.w(SpeedometerApp.TAG, e.getMessage()); throw new IllegalArgumentException(e); } catch (NoSuchMethodException e) { Log.w(SpeedometerApp.TAG, e.getMessage()); throw new IllegalArgumentException(e); } catch (IllegalArgumentException e) { Log.w(SpeedometerApp.TAG, e.getMessage()); throw new IllegalArgumentException(e); } catch (InstantiationException e) { Log.w(SpeedometerApp.TAG, e.getMessage()); throw new IllegalArgumentException(e); } catch (IllegalAccessException e) { Log.w(SpeedometerApp.TAG, e.getMessage()); throw new IllegalArgumentException(e); } catch (InvocationTargetException e) { Log.w(SpeedometerApp.TAG, e.toString()); throw new IllegalArgumentException(e); } }
From source file:it.cnr.icar.eric.common.security.X509Parser.java
/** * Parses a X509Certificate from a DER formatted input stream. Uses the * BouncyCastle provider if available.// w w w .java 2 s.c o m * * @param inStream The DER InputStream with the certificate. * @return X509Certificate parsed from stream. * @throws JAXRException in case of IOException or CertificateException * while parsing the stream. */ public static X509Certificate parseX509Certificate(InputStream inStream) throws JAXRException { try { //possible options // - der x509 generated by keytool -export // - der x509 generated by openssh x509 (might require BC provider) // Get the CertificateFactory to parse the stream // if BouncyCastle provider available, use it CertificateFactory cf; try { Class<?> clazz = Class.forName("org.bouncycastle.jce.provider.BouncyCastleProvider"); Constructor<?> constructor = clazz.getConstructor(new Class[] {}); Provider bcProvider = (Provider) constructor.newInstance(new Object[] {}); Security.addProvider(bcProvider); cf = CertificateFactory.getInstance("X.509", "BC"); } catch (Exception e) { // log error if bc present but failed to instanciate/add provider if (!(e instanceof ClassNotFoundException)) { log.error(CommonResourceBundle.getInstance() .getString("message.FailedToInstantiateBouncyCastleProvider")); } // fall back to default provider cf = CertificateFactory.getInstance("X.509"); } // Read the stream to a local variable DataInputStream dis = new DataInputStream(inStream); byte[] bytes = new byte[dis.available()]; dis.readFully(bytes); ByteArrayInputStream certStream = new ByteArrayInputStream(bytes); // Parse the cert stream int i = 0; Collection<? extends Certificate> c = cf.generateCertificates(certStream); X509Certificate[] certs = new X509Certificate[c.toArray().length]; for (Iterator<? extends Certificate> it = c.iterator(); it.hasNext();) { certs[i++] = (X509Certificate) it.next(); } // Some logging.. if (log.isDebugEnabled()) { if (c.size() == 1) { log.debug("One certificate, no chain."); } else { log.debug("Certificate chain length: " + c.size()); } log.debug("Subject DN: " + certs[0].getSubjectDN().getName()); log.debug("Issuer DN: " + certs[0].getIssuerDN().getName()); } // Do we need to return the chain? // do we need to verify if cert is self signed / valid? return certs[0]; } catch (CertificateException e) { String msg = CommonResourceBundle.getInstance().getString("message.parseX509CertificateStreamFailed", new Object[] { e.getClass().getName(), e.getMessage() }); throw new JAXRException(msg, e); } catch (IOException e) { String msg = CommonResourceBundle.getInstance().getString("message.parseX509CertificateStreamFailed", new Object[] { e.getClass().getName(), e.getMessage() }); throw new JAXRException(msg, e); } finally { try { inStream.close(); } catch (IOException e) { inStream = null; } } }
From source file:lite.flow.runtime.kiss.ComponentUtil.java
public static Object newInstance(Component component, FlowExecutionContext executionContext) throws ReflectiveOperationException { Class<?> componentClazz = component.componentClazz; Map<String, Object> resources = executionContext.getResources(); Map<String, Object> parameters = component.parameters; Constructor<?> constructor = pickConstructor(componentClazz, resources, parameters); Object args[] = buildConstructorArgs(constructor, resources, parameters); Object componentInstance = constructor.newInstance(args); return componentInstance; }
From source file:info.novatec.testit.livingdoc.util.ClassUtils.java
public static <T> T invoke(Constructor<T> constructor, Object... args) throws Throwable { try {/*from www. ja v a 2 s . co m*/ return constructor.newInstance(args); } catch (InstantiationException e) { throw e.getCause(); } }
From source file:com.auth10.federation.FederatedConfiguration.java
private static IFederatedConfiguration load(HttpServletRequest request) { java.util.Properties props = new java.util.Properties(); IFederatedConfiguration configurator = null; try {/*from w w w. j a va 2 s . c o m*/ InputStream is = FederatedConfiguration.class.getResourceAsStream("/federation.properties"); props.load(is); String className = props.getProperty(LOADER_CLASS, "com.auth10.federation.BasicFileConfiguration"); if (!StringUtils.isEmpty(className)) { Constructor<?> declaredConstructor = Class.forName(className) .getDeclaredConstructor(HttpServletRequest.class); configurator = (IFederatedConfiguration) declaredConstructor.newInstance(request); } } catch (IOException e) { throw new RuntimeException("Configuration could not be loaded", e); } catch (NoSuchMethodException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InstantiationException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalAccessException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalArgumentException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InvocationTargetException e) { // TODO Auto-generated catch block e.printStackTrace(); } /* if (configurator == null){ //Utilizamos los valores por defecto configurator = new BasicFileConfiguration(request); } */ return configurator; }