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Apache CXF example source code file (ServiceInvokerInterceptor.java)

This example Apache CXF source code file (ServiceInvokerInterceptor.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Apache CXF tags/keywords

endpoint, endpoint, exchange, executor, futuretask, interruptedexception, message, message, messagecontentslist, messagecontentslist, object, object, runnable, serviceinvokerinterceptor, threading, threads, util

The Apache CXF ServiceInvokerInterceptor.java source code

/**
 * 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.cxf.interceptor;

import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executor;
import java.util.concurrent.FutureTask;

import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageContentsList;
import org.apache.cxf.message.MessageImpl;
import org.apache.cxf.phase.AbstractPhaseInterceptor;
import org.apache.cxf.phase.Phase;
import org.apache.cxf.service.Service;
import org.apache.cxf.service.invoker.Invoker;

/**
 * Invokes a Binding's invoker with the <code>INVOCATION_INPUT from
 * the Exchange.
 * @author Dan Diephouse
 */
public class ServiceInvokerInterceptor extends AbstractPhaseInterceptor<Message> {
    
    public ServiceInvokerInterceptor() {
        super(Phase.INVOKE);
    }

    public void handleMessage(final Message message) {
        final Exchange exchange = message.getExchange();
        final Endpoint endpoint = exchange.get(Endpoint.class);
        final Service service = endpoint.getService();
        final Invoker invoker = service.getInvoker();        

        Runnable invocation = new Runnable() {

            public void run() {
                Exchange runableEx = message.getExchange();
                Object result = invoker.invoke(runableEx, getInvokee(message));
                if (!exchange.isOneWay()) {
                    Endpoint ep = exchange.get(Endpoint.class);
                    
                    Message outMessage = runableEx.getOutMessage();
                    if (outMessage == null) {
                        outMessage = new MessageImpl();
                        outMessage.setExchange(exchange);
                        outMessage = ep.getBinding().createMessage(outMessage);
                        exchange.setOutMessage(outMessage);
                    }
                    copyJaxwsProperties(message, outMessage);
                    if (result != null) {
                        MessageContentsList resList = null;
                        if (result instanceof MessageContentsList) {
                            resList = (MessageContentsList)result;
                        } else if (result instanceof List) {
                            resList = new MessageContentsList((List)result);
                        } else if (result.getClass().isArray()) {
                            resList = new MessageContentsList((Object[])result);
                        } else {
                            outMessage.setContent(Object.class, result);                            
                        }
                        if (resList != null) {
                            outMessage.setContent(List.class, resList);
                        }
                    }                    
                }
            }

        };
        
        Executor executor = getExecutor(endpoint);
        if (exchange.get(Executor.class) == executor) {
            // already executing on the appropriate executor
            invocation.run();
        } else {
            exchange.put(Executor.class, executor);
            FutureTask<Object> o = new FutureTask(invocation, null) {
                @Override
                protected void done() {
                    super.done();
                    synchronized (this) {
                        this.notifyAll();
                    }
                }
            };
            synchronized (o) {
                executor.execute(o);
                if (!o.isDone()) {
                    try {
                        o.wait();
                    } catch (InterruptedException e) {
                        //IGNORE
                    }
                }
                try {
                    o.get();
                } catch (InterruptedException e) {
                    throw new Fault(e);
                } catch (ExecutionException e) {
                    if (e.getCause() instanceof RuntimeException) {
                        throw (RuntimeException)e.getCause();
                    } else {
                        throw new Fault(e.getCause());
                    }
                }
            }
        }
    }
    
    private Object getInvokee(Message message) {
        Object invokee = message.getContent(List.class);
        if (invokee == null) {
            invokee = message.getContent(Object.class);
        }
        return invokee;
    }

    /**
     * Get the Executor for this invocation.
     * @param endpoint
     * @return
     */
    private Executor getExecutor(final Endpoint endpoint) {
        return endpoint.getService().getExecutor();
    }
    
    private void copyJaxwsProperties(Message inMsg, Message outMsg) {       
        outMsg.put(Message.WSDL_OPERATION, inMsg.get(Message.WSDL_OPERATION));
        outMsg.put(Message.WSDL_SERVICE, inMsg.get(Message.WSDL_SERVICE));
        outMsg.put(Message.WSDL_INTERFACE, inMsg.get(Message.WSDL_INTERFACE));
        outMsg.put(Message.WSDL_PORT, inMsg.get(Message.WSDL_PORT));
        outMsg.put(Message.WSDL_DESCRIPTION, inMsg.get(Message.WSDL_DESCRIPTION));
    }    
}

Other Apache CXF examples (source code examples)

Here is a short list of links related to this Apache CXF ServiceInvokerInterceptor.java source code file:

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