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Apache CXF example source code file (MultipleEndpointObserver.java)

This example Apache CXF source code file (MultipleEndpointObserver.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

bus, bus, copyonwritearraylist, endpoints, list, list, message, message, messageobserver, multipleendpointobserver, phaseinterceptorchain, phaseinterceptorchain, set, string, threading, threads, util

The Apache CXF MultipleEndpointObserver.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.transport;

import java.util.List;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.CopyOnWriteArraySet;

import org.apache.cxf.Bus;
import org.apache.cxf.BusFactory;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.interceptor.Interceptor;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.ExchangeImpl;
import org.apache.cxf.message.Message;
import org.apache.cxf.phase.PhaseInterceptorChain;
import org.apache.cxf.phase.PhaseManager;

/**
 * This MessageObserver creates an Interceptor chain which adds in the interceptors
 * set on this class and the global Bus interceptors. At somepoint, it is expected
 * that these interceptors will resolve the appropriate Endpoint/Binding combination
 * and continue setting up the chain.
 *
 */
public class MultipleEndpointObserver implements MessageObserver {
    
    public static final String ENDPOINTS = "multipleEndpointObserver.endpoints";
    
    protected Bus bus;
    protected List<Interceptor bindingInterceptors
        = new CopyOnWriteArrayList<Interceptor();
    protected List<Interceptor routingInterceptors
        = new CopyOnWriteArrayList<Interceptor();
    private Set<Endpoint> endpoints = new CopyOnWriteArraySet();
    
    public MultipleEndpointObserver(Bus bus) {
        super();
        this.bus = bus;
    }

    public void onMessage(Message message) {
        Bus origBus = BusFactory.getThreadDefaultBus(false);
        BusFactory.setThreadDefaultBus(bus);
        try {
            Exchange exchange = message.getExchange();
            if (exchange == null) {
                exchange = new ExchangeImpl();
                exchange.setInMessage(message);
                message.setExchange(exchange);
            }
            message = createMessage(message);
            message.setExchange(exchange);                
            exchange.setInMessage(message);
            setExchangeProperties(exchange, message);
            
            // setup chain
            PhaseInterceptorChain chain = createChain();
            
            message.setInterceptorChain(chain);
            
            chain.add(bus.getInInterceptors());
            if (bindingInterceptors != null) {
                chain.add(bindingInterceptors);
            }
            if (routingInterceptors != null) {
                chain.add(routingInterceptors);
            }
            
            if (endpoints != null) {
                exchange.put(ENDPOINTS, endpoints);
            }
            
            chain.doIntercept(message);
        } finally {
            BusFactory.setThreadDefaultBus(origBus);
        }
    }

    /**
     * Give a chance for a Binding to customize their message
     */
    protected Message createMessage(Message message) {
        return message;
    }

    protected PhaseInterceptorChain createChain() {
        PhaseInterceptorChain chain = new PhaseInterceptorChain(bus.getExtension(PhaseManager.class)
            .getInPhases());
        return chain;
    }
    
    protected void setExchangeProperties(Exchange exchange, Message m) {
        exchange.put(Bus.class, bus);
        if (exchange.getDestination() == null) {
            exchange.setDestination(m.getDestination());
        }
    }

    public List<Interceptor getBindingInterceptors() {
        return bindingInterceptors;
    }

    public List<Interceptor getRoutingInterceptors() {
        return routingInterceptors;
    }

    public Set<Endpoint> getEndpoints() {
        return endpoints;
    }

}

Other Apache CXF examples (source code examples)

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

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