001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.camel.component.binding;
018
019import org.apache.camel.CamelContextAware;
020import org.apache.camel.Endpoint;
021import org.apache.camel.Exchange;
022import org.apache.camel.Processor;
023import org.apache.camel.Producer;
024import org.apache.camel.impl.DefaultProducer;
025import org.apache.camel.util.ServiceHelper;
026
027/**
028 * A {@link Producer} which applies a {@link org.apache.camel.spi.Binding} before invoking the underlying {@link Producer} on the {@link Endpoint}
029 */
030public class BindingProducer extends DefaultProducer {
031    private final BindingEndpoint endpoint;
032    private final Processor bindingProcessor;
033    private final Producer delegateProducer;
034
035    public BindingProducer(BindingEndpoint endpoint) throws Exception {
036        super(endpoint);
037        this.endpoint = endpoint;
038        this.bindingProcessor = endpoint.getBinding().createProduceProcessor();
039        this.delegateProducer = endpoint.getDelegate().createProducer();
040    }
041
042    @Override
043    public void process(Exchange exchange) throws Exception {
044        endpoint.pipelineBindingProcessor(bindingProcessor, exchange, delegateProducer);
045    }
046
047    @Override
048    protected void doStart() throws Exception {
049        // inject CamelContext
050        if (bindingProcessor instanceof CamelContextAware) {
051            ((CamelContextAware) bindingProcessor).setCamelContext(getEndpoint().getCamelContext());
052        }
053        if (delegateProducer instanceof CamelContextAware) {
054            ((CamelContextAware) delegateProducer).setCamelContext(getEndpoint().getCamelContext());
055        }
056        ServiceHelper.startServices(bindingProcessor, delegateProducer);
057        super.doStart();
058    }
059
060    @Override
061    protected void doStop() throws Exception {
062        ServiceHelper.stopServices(delegateProducer, bindingProcessor);
063        super.doStop();
064    }
065}