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.blueprint;
018    
019    import java.util.Set;
020    import javax.xml.bind.annotation.XmlAccessType;
021    import javax.xml.bind.annotation.XmlAccessorType;
022    import javax.xml.bind.annotation.XmlRootElement;
023    import javax.xml.bind.annotation.XmlTransient;
024    
025    import org.apache.camel.CamelContext;
026    import org.apache.camel.core.xml.AbstractCamelThreadPoolFactoryBean;
027    import org.osgi.service.blueprint.container.BlueprintContainer;
028    
029    /**
030     * A factory which instantiates {@link java.util.concurrent.ExecutorService} objects
031     *
032     * @version 
033     */
034    @XmlRootElement(name = "threadPool")
035    @XmlAccessorType(XmlAccessType.FIELD)
036    public class CamelThreadPoolFactoryBean extends AbstractCamelThreadPoolFactoryBean {
037    
038        @XmlTransient
039        private BlueprintContainer blueprintContainer;
040    
041        public void setBlueprintContainer(BlueprintContainer blueprintContainer) {
042            this.blueprintContainer = blueprintContainer;
043        }
044    
045        @Override
046        protected CamelContext getCamelContextWithId(String camelContextId) {
047            if (blueprintContainer != null) {
048                return (CamelContext) blueprintContainer.getComponentInstance(camelContextId);
049            }
050            return null;
051        }
052    
053        @Override
054        protected CamelContext discoverDefaultCamelContext() {
055            if (blueprintContainer != null) {
056                Set<String> ids = BlueprintCamelContextLookupHelper.lookupBlueprintCamelContext(blueprintContainer);
057                if (ids.size() == 1) {
058                    // there is only 1 id for a BlueprintCamelContext so fallback and use this
059                    return getCamelContextWithId(ids.iterator().next());
060                }
061            }
062            return null;
063        }
064    
065    }