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.core.osgi.utils.BundleContextUtils;
027    import org.apache.camel.impl.DefaultCamelContext;
028    import org.apache.camel.spi.Registry;
029    import org.apache.commons.logging.Log;
030    import org.apache.commons.logging.LogFactory;
031    import org.osgi.framework.BundleContext;
032    import org.osgi.service.blueprint.container.BlueprintContainer;
033    
034    public class BlueprintCamelContext extends DefaultCamelContext {
035    
036        private static final transient Log LOG = LogFactory.getLog(BlueprintCamelContext.class);
037    
038        private BundleContext bundleContext;
039        private BlueprintContainer blueprintContainer;
040    
041        public BlueprintCamelContext() {
042        }
043    
044        public BlueprintCamelContext(BundleContext bundleContext, BlueprintContainer blueprintContainer) {
045            this.bundleContext = bundleContext;
046            this.blueprintContainer = blueprintContainer;
047            setNameStrategy(new OsgiCamelContextNameStrategy(bundleContext));
048            setClassResolver(new OsgiClassResolver(bundleContext));
049            setFactoryFinderResolver(new OsgiFactoryFinderResolver(bundleContext));
050            setPackageScanClassResolver(new OsgiPackageScanClassResolver(bundleContext));
051            setComponentResolver(new BlueprintComponentResolver(bundleContext));
052            setLanguageResolver(new BlueprintLanguageResolver(bundleContext));
053            setDataFormatResolver(new BlueprintDataFormatResolver(bundleContext));
054        }
055    
056        public BundleContext getBundleContext() {
057            return bundleContext;
058        }
059    
060        public void setBundleContext(BundleContext bundleContext) {
061            this.bundleContext = bundleContext;
062        }
063    
064        public BlueprintContainer getBlueprintContainer() {
065            return blueprintContainer;
066        }
067    
068        public void setBlueprintContainer(BlueprintContainer blueprintContainer) {
069            this.blueprintContainer = blueprintContainer;
070        }
071    
072        public void init() throws Exception {
073            maybeStart();
074        }
075    
076        private void maybeStart() throws Exception {
077            if (!isStarted() && !isStarting()) {
078                start();
079            } else {
080                // ignore as Camel is already started
081                LOG.trace("Ignoring maybeStart() as Apache Camel is already started");
082            }
083        }
084    
085        public void destroy() throws Exception {
086            stop();
087        }
088    
089        @Override
090        protected TypeConverter createTypeConverter() {
091            // CAMEL-3614: make sure we use a bundle context which imports org.apache.camel.impl.converter package
092            BundleContext ctx = BundleContextUtils.getBundleContext(getClass());
093            if (ctx == null) {
094                ctx = bundleContext;
095            }
096            return new OsgiTypeConverter(ctx, getInjector());
097        }
098    
099        @Override
100        protected Registry createRegistry() {
101            Registry reg = new BlueprintContainerRegistry(getBlueprintContainer());
102            return OsgiCamelContextHelper.wrapRegistry(this, reg, bundleContext);
103        }
104    
105    }