| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.component.bean; |
| |
| import java.io.Externalizable; |
| import java.io.IOException; |
| import java.io.ObjectInput; |
| import java.io.ObjectOutput; |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.util.Arrays; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.util.ObjectHelper; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Invocation of beans that can handle being serialized. |
| */ |
| public class BeanInvocation implements Externalizable { |
| private static final transient Logger LOG = LoggerFactory.getLogger(BeanInvocation.class); |
| private Object[] args; |
| private MethodBean methodBean; |
| private transient Method method; |
| |
| public BeanInvocation() { |
| } |
| |
| public BeanInvocation(Method method, Object[] args) { |
| this.method = method; |
| this.args = args; |
| } |
| |
| @Override |
| public String toString() { |
| Object list = null; |
| if (args != null) { |
| list = Arrays.asList(args); |
| } |
| return "BeanInvocation " + method + " with " + list + "]"; |
| } |
| |
| public Object[] getArgs() { |
| return args; |
| } |
| |
| public Method getMethod() { |
| return method; |
| } |
| |
| public void setMethod(Method method) { |
| this.method = method; |
| } |
| |
| public void setArgs(Object[] args) { |
| this.args = args; |
| } |
| |
| /** |
| * This causes us to invoke the endpoint Pojo using reflection. |
| * |
| * @param pojo the bean on which to perform this invocation |
| * @param exchange the exchange carrying the method invocation |
| */ |
| public void invoke(Object pojo, Exchange exchange) { |
| try { |
| LOG.trace("Invoking method: {} with args: {}", getMethod(), getArgs()); |
| Object response = getMethod().invoke(pojo, getArgs()); |
| LOG.trace("Got response: {}", response); |
| exchange.getOut().setBody(response); |
| } catch (InvocationTargetException e) { |
| exchange.setException(ObjectHelper.wrapRuntimeCamelException(e.getCause())); |
| } catch (Exception e) { |
| throw ObjectHelper.wrapRuntimeCamelException(e); |
| } |
| } |
| |
| public void readExternal(ObjectInput objectInput) throws IOException, ClassNotFoundException { |
| methodBean = ObjectHelper.cast(MethodBean.class, objectInput.readObject()); |
| try { |
| method = methodBean.getMethod(); |
| } catch (NoSuchMethodException e) { |
| throw new IOException(e); |
| } |
| args = ObjectHelper.cast(Object[].class, objectInput.readObject()); |
| } |
| |
| public void writeExternal(ObjectOutput objectOutput) throws IOException { |
| if (methodBean == null) { |
| methodBean = new MethodBean(method); |
| } |
| objectOutput.writeObject(methodBean); |
| objectOutput.writeObject(args); |
| } |
| } |