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.blueprint;
018
019import java.util.Set;
020
021import javax.xml.bind.annotation.XmlAccessType;
022import javax.xml.bind.annotation.XmlAccessorType;
023import javax.xml.bind.annotation.XmlRootElement;
024import javax.xml.bind.annotation.XmlTransient;
025
026import org.apache.camel.CamelContext;
027import org.apache.camel.core.xml.AbstractCamelProducerTemplateFactoryBean;
028import org.osgi.service.blueprint.container.BlueprintContainer;
029
030/**
031 * A factory for creating a new {@link org.apache.camel.ProducerTemplate}
032 * instance with a minimum of XML
033 */
034@XmlRootElement(name = "template")
035@XmlAccessorType(XmlAccessType.FIELD)
036public class CamelProducerTemplateFactoryBean extends AbstractCamelProducerTemplateFactoryBean {
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}