/**
* 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.binding;
import org.apache.camel.CamelContextAware;
import org.apache.camel.Component;
import org.apache.camel.Consumer;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.Producer;
import org.apache.camel.impl.DefaultEndpoint;
import org.apache.camel.processor.PipelineHelper;
import org.apache.camel.spi.Binding;
import org.apache.camel.spi.HasBinding;
import org.apache.camel.spi.UriEndpoint;
import org.apache.camel.util.ServiceHelper;
/**
* Applies a {@link org.apache.camel.spi.Binding} to an underlying {@link Endpoint} so that the binding processes messages
* before its sent to the endpoint and processes messages received by the endpoint consumer before its passed
* to the real consumer.
*/
@UriEndpoint(scheme = "binding", consumerClass = BindingConsumerProcessor.class)
public class BindingEndpoint extends DefaultEndpoint implements HasBinding {
private final Binding binding;
private final Endpoint delegate;
public BindingEndpoint(String uri, Component component, Binding binding, Endpoint delegate) {
super(uri, component);
this.binding = binding;
this.delegate = delegate;
}
@Override
public Producer createProducer() throws Exception {
return new BindingProducer(this);
}
@Override
public Consumer createConsumer(Processor processor) throws Exception {
Processor bindingProcessor = new BindingConsumerProcessor(this, processor);
return delegate.createConsumer(bindingProcessor);
}
@Override
public boolean isSingleton() {
return true;
}
@Override
public Binding getBinding() {
return binding;
}
public Endpoint getDelegate() {
return delegate;
}
/**
* Applies the {@link Binding} processor to the given exchange before passing it on to the delegateProcessor (either a producer or consumer)
*/
public void pipelineBindingProcessor(Processor bindingProcessor, Exchange exchange, Processor delegateProcessor) throws Exception {
bindingProcessor.process(exchange);
Exchange delegateExchange = PipelineHelper.createNextExchange(exchange);
delegateProcessor.process(delegateExchange);
}
@Override
protected void doStart() throws Exception {
// inject CamelContext
if (binding instanceof CamelContextAware) {
((CamelContextAware) binding).setCamelContext(getCamelContext());
}
ServiceHelper.startServices(delegate, binding);
super.doStart();
}
@Override
protected void doStop() throws Exception {
ServiceHelper.stopServices(delegate, binding);
super.doStop();
}
}