/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.camel.osgi;
import java.util.List;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.impl.converter.AnnotationTypeConverterLoader;
import org.apache.camel.impl.converter.DefaultTypeConverter;
import org.apache.camel.impl.converter.TypeConverterLoader;
import org.apache.camel.spring.SpringCamelContext;
import org.apache.camel.util.ObjectHelper;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.osgi.framework.BundleContext;
import org.springframework.osgi.context.BundleContextAware;
@XmlRootElement(name = "camelContext")
@XmlAccessorType(XmlAccessType.FIELD)
public class CamelContextFactoryBean extends org.apache.camel.spring.CamelContextFactoryBean implements BundleContextAware {
private static final transient Log LOG = LogFactory.getLog(CamelContextFactoryBean.class);
@XmlTransient
private BundleContext bundleContext;
public BundleContext getBundleContext() {
return bundleContext;
}
public void setBundleContext(BundleContext bundleContext) {
if (LOG.isDebugEnabled()) {
LOG.debug("Using BundleContext: " + bundleContext);
}
this.bundleContext = bundleContext;
}
protected SpringCamelContext createContext() {
SpringCamelContext context = super.createContext();
if (bundleContext != null) {
if (LOG.isDebugEnabled()) {
LOG.debug("Using OSGI resolvers");
}
updateRegistry(context);
LOG.debug("Using OsgiFactoryFinderResolver");
context.setFactoryFinderResolver(new OsgiFactoryFinderResolver());
LOG.debug("Using OsgiPackageScanClassResolver");
context.setPackageScanClassResolver(new OsgiPackageScanClassResolver(bundleContext));
LOG.debug("Using OsgiComponentResolver");
context.setComponentResolver(new OsgiComponentResolver());
LOG.debug("Using OsgiLanguageResolver");
context.setLanguageResolver(new OsgiLanguageResolver());
addOsgiAnnotationTypeConverterLoader(context);
} else {
// TODO: should we not thrown an exception to not allow it to startup
LOG.warn("BundleContext not set, cannot run in OSGI container");
}
return context;
}
protected void updateRegistry(DefaultCamelContext context) {
ObjectHelper.notNull(bundleContext, "BundleContext");
LOG.debug("Setting the OSGi ServiceRegistry");
OsgiServiceRegistry osgiServiceRegistry = new OsgiServiceRegistry(bundleContext);
// Need to clean up the OSGi service when camel context is closed.
context.addLifecycleStrategy(osgiServiceRegistry);
CompositeRegistry compositeRegistry = new CompositeRegistry();
compositeRegistry.addRegistry(osgiServiceRegistry);
compositeRegistry.addRegistry(context.getRegistry());
context.setRegistry(compositeRegistry);
}
protected void addOsgiAnnotationTypeConverterLoader(SpringCamelContext context) {
LOG.debug("Using OsgiAnnotationTypeConverterLoader");
DefaultTypeConverter typeConverter = (DefaultTypeConverter) context.getTypeConverter();
List<TypeConverterLoader> typeConverterLoaders = typeConverter.getTypeConverterLoaders();
// Remove the AnnotationTypeConverterLoader
TypeConverterLoader atLoader = null;
for (TypeConverterLoader loader : typeConverterLoaders) {
if (loader instanceof AnnotationTypeConverterLoader) {
atLoader = loader;
break;
}
}
if (atLoader != null) {
typeConverterLoaders.remove(atLoader);
}
// add our osgi annotation loader
typeConverterLoaders.add(new OsgiAnnotationTypeConverterLoader(context.getPackageScanClassResolver()));
}
}