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/**
* 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.cxf.bus.extension;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import org.apache.cxf.binding.BindingFactoryManager;
import org.apache.cxf.bus.BusState;
import org.apache.cxf.bus.CXFBusImpl;
import org.apache.cxf.bus.managers.BindingFactoryManagerImpl;
import org.apache.cxf.bus.managers.ConduitInitiatorManagerImpl;
import org.apache.cxf.bus.managers.DestinationFactoryManagerImpl;
import org.apache.cxf.common.util.SystemPropertyAction;
import org.apache.cxf.configuration.ConfiguredBeanLocator;
import org.apache.cxf.configuration.Configurer;
import org.apache.cxf.configuration.NullConfigurer;
import org.apache.cxf.resource.DefaultResourceManager;
import org.apache.cxf.resource.ObjectTypeResolver;
import org.apache.cxf.resource.PropertiesResolver;
import org.apache.cxf.resource.ResourceManager;
import org.apache.cxf.resource.ResourceResolver;
import org.apache.cxf.resource.SinglePropertyResolver;
import org.apache.cxf.transport.ConduitInitiatorManager;
import org.apache.cxf.transport.DestinationFactoryManager;
/**
* This bus uses CXF's built in extension manager to load components
* (as opposed to using the Spring bus implementation). While this is faster
* to load it doesn't allow extensive configuration and customization like
* the Spring bus does.
*/
public class ExtensionManagerBus extends CXFBusImpl {
public static final String BUS_PROPERTY_NAME = "bus";
private static final String BUS_ID_PROPERTY_NAME = "org.apache.cxf.bus.id";
private final ExtensionManagerImpl extensionManager;
public ExtensionManagerBus(Map, Object> e, Map properties,
ClassLoader extensionClassLoader) {
super(e);
if (null == properties) {
properties = new HashMap();
}
Configurer configurer = (Configurer)extensions.get(Configurer.class);
if (null == configurer) {
configurer = new NullConfigurer();
extensions.put(Configurer.class, configurer);
}
setId(getBusId(properties));
ResourceManager resourceManager = new DefaultResourceManager();
properties.put(BUS_ID_PROPERTY_NAME, BUS_PROPERTY_NAME);
properties.put(BUS_PROPERTY_NAME, this);
properties.put(DEFAULT_BUS_ID, this);
ResourceResolver propertiesResolver = new PropertiesResolver(properties);
resourceManager.addResourceResolver(propertiesResolver);
ResourceResolver busResolver = new SinglePropertyResolver(BUS_PROPERTY_NAME, this);
resourceManager.addResourceResolver(busResolver);
resourceManager.addResourceResolver(new ObjectTypeResolver(this));
busResolver = new SinglePropertyResolver(DEFAULT_BUS_ID, this);
resourceManager.addResourceResolver(busResolver);
resourceManager.addResourceResolver(new ObjectTypeResolver(this));
resourceManager.addResourceResolver(new ResourceResolver() {
public T resolve(String resourceName, Class resourceType) {
if (extensionManager != null) {
return extensionManager.getExtension(resourceName, resourceType);
}
return null;
}
public InputStream getAsStream(String name) {
return null;
}
});
extensions.put(ResourceManager.class, resourceManager);
extensionManager = new ExtensionManagerImpl(new String[0],
extensionClassLoader,
extensions,
resourceManager,
this);
setState(BusState.INITIAL);
if (null == this.getExtension(DestinationFactoryManager.class)) {
new DestinationFactoryManagerImpl(this);
}
if (null == this.getExtension(ConduitInitiatorManager.class)) {
new ConduitInitiatorManagerImpl(this);
}
if (null == this.getExtension(BindingFactoryManager.class)) {
new BindingFactoryManagerImpl(this);
}
extensionManager.load(new String[] {
ExtensionManagerImpl.BUS_EXTENSION_RESOURCE,
ExtensionManagerImpl.BUS_EXTENSION_RESOURCE_XML,
ExtensionManagerImpl.BUS_EXTENSION_RESOURCE_OLD_XML});
extensionManager.activateAllByType(ResourceResolver.class);
this.setExtension(extensionManager, ExtensionManager.class);
}
public ExtensionManagerBus(Map, Object> e, Map properties) {
this(e, properties, Thread.currentThread().getContextClassLoader());
}
public ExtensionManagerBus() {
this(null, null, Thread.currentThread().getContextClassLoader());
}
@Override
public void doInitializeInternal() {
extensionManager.initialize();
super.doInitializeInternal();
}
protected void destroyBeans() {
extensionManager.destroyBeans();
}
protected synchronized ConfiguredBeanLocator createConfiguredBeanLocator() {
ConfiguredBeanLocator loc = (ConfiguredBeanLocator)extensions.get(ConfiguredBeanLocator.class);
if (loc == null) {
loc = extensionManager;
this.setExtension(loc, ConfiguredBeanLocator.class);
}
return loc;
}
private String getBusId(Map properties) {
String busId = null;
// first check properties
if (null != properties) {
busId = (String)properties.get(BUS_ID_PROPERTY_NAME);
if (null != busId && !"".equals(busId)) {
return busId;
}
}
// next check system properties
busId = SystemPropertyAction.getPropertyOrNull(BUS_ID_PROPERTY_NAME);
if (null != busId && !"".equals(busId)) {
return busId;
}
// otherwise use null so the default will be used
return null;
}
}
