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     */
017    package org.apache.camel.impl;
018    
019    import java.util.Collection;
020    import java.util.List;
021    
022    import org.apache.camel.CamelContext;
023    import org.apache.camel.Route;
024    import org.apache.camel.Service;
025    import org.apache.camel.model.RouteDefinition;
026    import org.apache.camel.spi.LifecycleStrategy;
027    import org.apache.camel.spi.RouteContext;
028    
029    /**
030     * Represents the runtime objects for a given {@link RouteDefinition} so that it can be stopped independently
031     * of other routes
032     *
033     * @version $Revision: 790922 $
034     */
035    public class RouteService extends ServiceSupport {
036    
037        private final DefaultCamelContext camelContext;
038        private final RouteDefinition routeDefinition;
039        private final List<RouteContext> routeContexts;
040        private final Collection<Route> routes;
041        private final String id;
042    
043        public RouteService(DefaultCamelContext camelContext, RouteDefinition routeDefinition, List<RouteContext> routeContexts, Collection<Route> routes) {
044            this.camelContext = camelContext;
045            this.routeDefinition = routeDefinition;
046            this.routeContexts = routeContexts;
047            this.routes = routes;
048            this.id = routeDefinition.idOrCreate();
049        }
050    
051        public String getId() {
052            return id;
053        }
054    
055        public CamelContext getCamelContext() {
056            return camelContext;
057        }
058    
059        public List<RouteContext> getRouteContexts() {
060            return routeContexts;
061        }
062    
063        public RouteDefinition getRouteDefinition() {
064            return routeDefinition;
065        }
066    
067        public Collection<Route> getRoutes() {
068            return routes;
069        }
070    
071        protected void doStart() throws Exception {
072            camelContext.addRouteCollection(routes);
073    
074            getLifecycleStrategy().onRoutesAdd(routes);
075    
076            for (Route route : routes) {
077                List<Service> services = route.getServicesForRoute();
078                for (Service service : services) {
079                    startChildService(service);
080                }
081            }
082        }
083    
084        protected void doStop() throws Exception {
085            camelContext.removeRouteCollection(routes);
086    
087            // there is no lifecycyle for routesRemove
088    
089            // do not stop child services as in doStart
090            // as route.getServicesForRoute() will restart
091            // already stopped services, so we end up starting
092            // stuff when we stop.
093        }
094    
095        protected LifecycleStrategy getLifecycleStrategy() {
096            return camelContext.getLifecycleStrategy();
097        }
098    
099        protected void startChildService(Service service) throws Exception {
100            getLifecycleStrategy().onServiceAdd(camelContext, service);
101            service.start();
102            addChildService(service);
103        }
104    
105        protected void stopChildService(Service service) throws Exception {
106            service.stop();
107            removeChildService(service);
108        }
109    
110    }