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.osgi;
018    
019    import javax.xml.bind.annotation.XmlAccessType;
020    import javax.xml.bind.annotation.XmlAccessorType;
021    import javax.xml.bind.annotation.XmlRootElement;
022    import javax.xml.bind.annotation.XmlTransient;
023    
024    import org.apache.camel.core.osgi.OsgiCamelContextPublisher;
025    import org.apache.camel.core.osgi.OsgiEventAdminNotifier;
026    import org.apache.camel.spring.SpringCamelContext;
027    import org.osgi.framework.BundleContext;
028    import org.slf4j.Logger;
029    import org.slf4j.LoggerFactory;
030    import org.springframework.osgi.context.BundleContextAware;
031    
032    @XmlRootElement(name = "camelContext")
033    @XmlAccessorType(XmlAccessType.FIELD)
034    public class CamelContextFactoryBean extends org.apache.camel.spring.CamelContextFactoryBean implements BundleContextAware {
035        private static final transient Logger LOG = LoggerFactory.getLogger(CamelContextFactoryBean.class);
036        
037        @XmlTransient
038        private BundleContext bundleContext;
039    
040        public BundleContext getBundleContext() {
041            return bundleContext;
042        }
043    
044        public void setBundleContext(BundleContext bundleContext) {
045            if (LOG.isDebugEnabled()) {
046                LOG.debug("Using BundleContext: " + bundleContext);
047            }
048            this.bundleContext = bundleContext;
049        }
050        
051        protected SpringCamelContext createContext() {
052            SpringCamelContext ctx = newCamelContext();
053            // only set the name if its explicit (Camel will auto assign name if none explicit set)
054            if (!isImplicitId()) {
055                ctx.setName(getId());
056            }
057            return ctx;
058        }
059        
060        protected SpringCamelContext newCamelContext() {
061            return new OsgiSpringCamelContext(getApplicationContext(), getBundleContext());
062        }
063    
064        @Override
065        public void afterPropertiesSet() throws Exception {
066            super.afterPropertiesSet();
067            getContext().getManagementStrategy().addEventNotifier(new OsgiCamelContextPublisher(bundleContext));
068            try {
069                getClass().getClassLoader().loadClass("org.osgi.service.event.EventAdmin");
070                getContext().getManagementStrategy().addEventNotifier(new OsgiEventAdminNotifier(bundleContext));
071            } catch (Throwable t) {
072                // Ignore, if the EventAdmin package is not available, just don't use it
073                LOG.debug("EventAdmin package is not available, just don't use it");
074            }
075        }
076    }