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 org.apache.camel.TypeConverter;
020    import org.apache.camel.core.osgi.OsgiCamelContextHelper;
021    import org.apache.camel.core.osgi.OsgiCamelContextNameStrategy;
022    import org.apache.camel.core.osgi.OsgiClassResolver;
023    import org.apache.camel.core.osgi.OsgiFactoryFinderResolver;
024    import org.apache.camel.core.osgi.OsgiPackageScanClassResolver;
025    import org.apache.camel.core.osgi.OsgiTypeConverter;
026    import org.apache.camel.impl.DefaultCamelContext;
027    import org.apache.camel.spi.Registry;
028    import org.apache.commons.logging.Log;
029    import org.apache.commons.logging.LogFactory;
030    import org.osgi.framework.BundleContext;
031    import org.osgi.service.blueprint.container.BlueprintContainer;
032    
033    public class BlueprintCamelContext extends DefaultCamelContext {
034    
035        private static final transient Log LOG = LogFactory.getLog(BlueprintCamelContext.class);
036    
037        private BundleContext bundleContext;
038        private BlueprintContainer blueprintContainer;
039    
040        public BlueprintCamelContext() {
041        }
042    
043        public BlueprintCamelContext(BundleContext bundleContext, BlueprintContainer blueprintContainer) {
044            this.bundleContext = bundleContext;
045            this.blueprintContainer = blueprintContainer;
046            setNameStrategy(new OsgiCamelContextNameStrategy(bundleContext));
047            setClassResolver(new OsgiClassResolver(bundleContext));
048            setFactoryFinderResolver(new OsgiFactoryFinderResolver(bundleContext));
049            setPackageScanClassResolver(new OsgiPackageScanClassResolver(bundleContext));
050            setComponentResolver(new BlueprintComponentResolver(bundleContext));
051            setLanguageResolver(new BlueprintLanguageResolver(bundleContext));
052            setDataFormatResolver(new BlueprintDataFormatResolver(bundleContext));
053        }
054    
055        public BundleContext getBundleContext() {
056            return bundleContext;
057        }
058    
059        public void setBundleContext(BundleContext bundleContext) {
060            this.bundleContext = bundleContext;
061        }
062    
063        public BlueprintContainer getBlueprintContainer() {
064            return blueprintContainer;
065        }
066    
067        public void setBlueprintContainer(BlueprintContainer blueprintContainer) {
068            this.blueprintContainer = blueprintContainer;
069        }
070    
071        public void init() throws Exception {
072            maybeStart();
073        }
074    
075        private void maybeStart() throws Exception {
076            if (!isStarted() && !isStarting()) {
077                start();
078            } else {
079                // ignore as Camel is already started
080                LOG.trace("Ignoring maybeStart() as Apache Camel is already started");
081            }
082        }
083    
084        public void destroy() throws Exception {
085            stop();
086        }
087    
088        @Override
089        protected TypeConverter createTypeConverter() {
090            return new OsgiTypeConverter(bundleContext, getInjector());
091        }
092    
093        @Override
094        protected Registry createRegistry() {
095            Registry reg = new BlueprintContainerRegistry(getBlueprintContainer());
096            return OsgiCamelContextHelper.wrapRegistry(this, reg, bundleContext);
097        }
098    
099    }