/**
* 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;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.CopyOnWriteArraySet;
import org.apache.cxf.Bus;
import org.apache.cxf.BusFactory;
import org.apache.cxf.buslifecycle.BusCreationListener;
import org.apache.cxf.buslifecycle.BusLifeCycleManager;
import org.apache.cxf.common.injection.NoJSR250Annotations;
import org.apache.cxf.configuration.ConfiguredBeanLocator;
import org.apache.cxf.feature.Feature;
import org.apache.cxf.feature.LoggingFeature;
import org.apache.cxf.interceptor.AbstractBasicInterceptorProvider;
@NoJSR250Annotations
public class CXFBusImpl extends AbstractBasicInterceptorProvider implements Bus {
static final boolean FORCE_LOGGING;
static {
boolean b = false;
try {
b = Boolean.getBoolean("org.apache.cxf.logging.enabled");
//treat these all the same
b |= Boolean.getBoolean("com.sun.xml.ws.transport.local.LocalTransportPipe.dump");
b |= Boolean.getBoolean("com.sun.xml.ws.util.pipe.StandaloneTubeAssembler.dump");
b |= Boolean.getBoolean("com.sun.xml.ws.transport.http.client.HttpTransportPipe.dump");
b |= Boolean.getBoolean("com.sun.xml.ws.transport.http.HttpAdapter.dump");
} catch (Throwable t) {
//ignore
}
FORCE_LOGGING = b;
}
protected final Map<Class<?>, Object> extensions;
protected final Set<Class<?>> missingExtensions;
protected String id;
private BusState state;
private final Collection<Feature> features = new CopyOnWriteArrayList<Feature>();
private final Map<String, Object> properties = new ConcurrentHashMap<String, Object>(16, 0.75f, 4);
public CXFBusImpl() {
this(null);
}
public CXFBusImpl(Map<Class<?>, Object> extensions) {
if (extensions == null) {
extensions = new ConcurrentHashMap<Class<?>, Object>(16, 0.75f, 4);
} else {
extensions = new ConcurrentHashMap<Class<?>, Object>(extensions);
}
this.extensions = extensions;
this.missingExtensions = new CopyOnWriteArraySet<Class<?>>();
state = BusState.INITIAL;
CXFBusFactory.possiblySetDefaultBus(this);
if (FORCE_LOGGING) {
features.add(new LoggingFeature());
}
}
protected void setState(BusState state) {
this.state = state;
}
public void setId(String i) {
id = i;
}
public final <T> T getExtension(Class<T> extensionType) {
Object obj = extensions.get(extensionType);
if (obj == null) {
if (missingExtensions.contains(extensionType)) {
//already know we cannot find it
return null;
}
ConfiguredBeanLocator loc = (ConfiguredBeanLocator)extensions.get(ConfiguredBeanLocator.class);
if (loc == null) {
loc = createConfiguredBeanLocator();
}
if (loc != null) {
obj = loc.getBeanOfType(extensionType.getName(), extensionType);
if (obj != null) {
extensions.put(extensionType, obj);
} else {
//force loading
Collection<?> objs = loc.getBeansOfType(extensionType);
if (objs != null) {
for (Object o : objs) {
extensions.put(extensionType, o);
}
}
obj = extensions.get(extensionType);
}
}
}
if (null != obj) {
return extensionType.cast(obj);
} else {
//record that it couldn't be found to avoid expensive searches again in the future
missingExtensions.add(extensionType);
}
return null;
}
public boolean hasExtensionByName(String name) {
for (Class<?> c : extensions.keySet()) {
if (name.equals(c.getName())) {
return true;
}
}
ConfiguredBeanLocator loc = (ConfiguredBeanLocator)extensions.get(ConfiguredBeanLocator.class);
if (loc == null) {
loc = createConfiguredBeanLocator();
}
if (loc != null) {
return loc.hasBeanOfName(name);
}
return false;
}
protected synchronized ConfiguredBeanLocator createConfiguredBeanLocator() {
ConfiguredBeanLocator loc = (ConfiguredBeanLocator)extensions.get(ConfiguredBeanLocator.class);
if (loc == null) {
loc = new ConfiguredBeanLocator() {
public List<String> getBeanNamesOfType(Class<?> type) {
return null;
}
public <T> Collection<? extends T> getBeansOfType(Class<T> type) {
return null;
}
public <T> boolean loadBeansOfType(Class<T> type, BeanLoaderListener<T> listener) {
return false;
}
public boolean hasConfiguredPropertyValue(String beanName,
String propertyName,
String value) {
return false;
}
public <T> T getBeanOfType(String name, Class<T> type) {
return null;
}
public boolean hasBeanOfName(String name) {
return false;
}
};
this.setExtension(loc, ConfiguredBeanLocator.class);
}
return loc;
}
public <T> void setExtension(T extension, Class<T> extensionType) {
extensions.put(extensionType, extension);
missingExtensions.remove(extensionType);
}
public String getId() {
return null == id ? DEFAULT_BUS_ID + Integer.toString(Math.abs(this.hashCode())) : id;
}
public void run() {
synchronized (this) {
state = BusState.RUNNING;
while (state == BusState.RUNNING) {
try {
wait();
} catch (InterruptedException ex) {
// ignore;
}
}
}
}
public void initialize() {
setState(BusState.INITIALIZING);
Collection<? extends BusCreationListener> ls = getExtension(ConfiguredBeanLocator.class)
.getBeansOfType(BusCreationListener.class);
for (BusCreationListener l : ls) {
l.busCreated(this);
}
doInitializeInternal();
BusLifeCycleManager lifeCycleManager = this.getExtension(BusLifeCycleManager.class);
if (null != lifeCycleManager) {
lifeCycleManager.initComplete();
}
setState(BusState.RUNNING);
}
protected void doInitializeInternal() {
initializeFeatures();
}
protected void loadAdditionalFeatures() {
}
protected void initializeFeatures() {
loadAdditionalFeatures();
if (features != null) {
for (Feature f : features) {
f.initialize(this);
}
}
}
public void shutdown() {
shutdown(true);
}
protected void destroyBeans() {
}
public void shutdown(boolean wait) {
if (state == BusState.SHUTTING_DOWN) {
return;
}
BusLifeCycleManager lifeCycleManager = this.getExtension(BusLifeCycleManager.class);
if (null != lifeCycleManager) {
lifeCycleManager.preShutdown();
}
synchronized (this) {
state = BusState.SHUTTING_DOWN;
}
destroyBeans();
synchronized (this) {
state = BusState.SHUTDOWN;
notifyAll();
}
if (null != lifeCycleManager) {
lifeCycleManager.postShutdown();
}
if (BusFactory.getDefaultBus(false) == this) {
BusFactory.setDefaultBus(null);
}
BusFactory.clearDefaultBusForAnyThread(this);
}
public BusState getState() {
return state;
}
public Collection<Feature> getFeatures() {
return features;
}
public synchronized void setFeatures(Collection<? extends Feature> features) {
this.features.clear();
this.features.addAll(features);
if (FORCE_LOGGING) {
this.features.add(new LoggingFeature());
}
if (state == BusState.RUNNING) {
initializeFeatures();
}
}
public interface ExtensionFinder {
<T> T findExtension(Class<T> cls);
}
public Map<String, Object> getProperties() {
return properties;
}
public void setProperties(Map<String, Object> map) {
properties.clear();
properties.putAll(map);
}
public Object getProperty(String s) {
return properties.get(s);
}
public void setProperty(String s, Object o) {
if (o == null) {
properties.remove(s);
} else {
properties.put(s, o);
}
}
}