/**
* 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.impl;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.apache.camel.AsyncProcessor;
import org.apache.camel.CamelContext;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.NoSuchEndpointException;
import org.apache.camel.Processor;
import org.apache.camel.Route;
import org.apache.camel.impl.converter.AsyncProcessorTypeConverter;
import org.apache.camel.model.FromType;
import org.apache.camel.model.ProcessorType;
import org.apache.camel.model.RouteType;
import org.apache.camel.processor.Interceptor;
import org.apache.camel.processor.Pipeline;
import org.apache.camel.processor.ProceedProcessor;
import org.apache.camel.processor.UnitOfWorkProcessor;
/**
* The context used to activate new routing rules
*
* @version $Revision: 640438 $
*/
public class RouteContext {
private RouteType route;
private FromType from;
private Collection<Route> routes;
private Endpoint<? extends Exchange> endpoint;
private List<Processor> eventDrivenProcessors = new ArrayList<Processor>();
private Interceptor lastInterceptor;
private CamelContext camelContext;
public RouteContext(RouteType route, FromType from, Collection<Route> routes) {
this.route = route;
this.from = from;
this.routes = routes;
}
/**
* Only used for lazy construction from inside ExpressionType
*/
public RouteContext(CamelContext camelContext) {
this.camelContext = camelContext;
routes = new ArrayList<Route>();
route = new RouteType("temporary");
}
public Endpoint<? extends Exchange> getEndpoint() {
if (endpoint == null) {
endpoint = from.resolveEndpoint(this);
}
return endpoint;
}
public FromType getFrom() {
return from;
}
public RouteType getRoute() {
return route;
}
public CamelContext getCamelContext() {
if (camelContext == null) {
camelContext = getRoute().getCamelContext();
}
return camelContext;
}
public Processor createProcessor(ProcessorType node) throws Exception {
return node.createOutputsProcessor(this);
}
public Endpoint<? extends Exchange> resolveEndpoint(String uri) {
return route.resolveEndpoint(uri);
}
/**
* Resolves an endpoint from either a URI or a named reference
*/
public Endpoint<? extends Exchange> resolveEndpoint(String uri, String ref) {
Endpoint<? extends Exchange> endpoint = null;
if (uri != null) {
endpoint = resolveEndpoint(uri);
if (endpoint == null) {
throw new NoSuchEndpointException(uri);
}
}
if (ref != null) {
endpoint = lookup(ref, Endpoint.class);
if (endpoint == null) {
throw new NoSuchEndpointException("ref:" + ref);
}
}
if (endpoint == null) {
throw new IllegalArgumentException("Either 'uri' or 'ref' must be specified on: " + this);
} else {
return endpoint;
}
}
/**
* lookup an object by name and type
*/
public <T> T lookup(String name, Class<T> type) {
return getCamelContext().getRegistry().lookup(name, type);
}
/**
* Lets complete the route creation, creating a single event driven route
* for the current from endpoint with any processors required
*/
public void commit() {
// now lets turn all of the event driven consumer processors into a
// single route
if (!eventDrivenProcessors.isEmpty()) {
Processor processor = Pipeline.newInstance(eventDrivenProcessors);
// lets create the async processor
final AsyncProcessor asyncProcessor = AsyncProcessorTypeConverter.convert(processor);
Processor unitOfWorkProcessor = new UnitOfWorkProcessor(asyncProcessor);
// TODO: hz: move all this into the lifecycle strategy! (used by jmx naming strategy)
Route edcr = new EventDrivenConsumerRoute(getEndpoint(), unitOfWorkProcessor);
edcr.getProperties().put(Route.PARENT_PROPERTY, Integer.toHexString(route.hashCode()));
if (route.getGroup() != null) {
edcr.getProperties().put(Route.GROUP_PROPERTY, route.getGroup());
}
routes.add(edcr);
}
}
public void addEventDrivenProcessor(Processor processor) {
eventDrivenProcessors.add(processor);
}
public void intercept(Interceptor interceptor) {
/*
InterceptorRef block = new InterceptorRef(interceptor);
RouteType route = getRoute();
List<ProcessorType<?>> list = route.getOutputs();
for (ProcessorType<?> processorType : list) {
block.addOutput(processorType);
}
route.clearOutput();
route.addInterceptor(block);
*/
//getRoute().getInterceptors().add(new InterceptorRef(interceptor));
lastInterceptor = interceptor;
}
public Processor createProceedProcessor() {
if (lastInterceptor == null) {
throw new IllegalArgumentException("Cannot proceed() from outside of an interceptor!");
} else {
return new ProceedProcessor(lastInterceptor);
}
}
}