/*
* 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.catalina.mbeans;
import java.util.ArrayList;
import java.util.List;
import javax.management.MBeanException;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;
import org.apache.catalina.Container;
import org.apache.catalina.ContainerListener;
import org.apache.catalina.JmxEnabled;
import org.apache.catalina.LifecycleException;
import org.apache.catalina.LifecycleListener;
import org.apache.catalina.Valve;
import org.apache.catalina.core.ContainerBase;
import org.apache.catalina.core.StandardContext;
import org.apache.catalina.core.StandardHost;
import org.apache.catalina.startup.ContextConfig;
import org.apache.catalina.startup.HostConfig;
public class ContainerMBean extends BaseCatalinaMBean<ContainerBase> {
/**
* Add a new child Container to those associated with this Container , if supported . Won ' t start the child yet . Has
* to be started with a call to Start method after necessary configurations are done .
*
* @ param type ClassName of the child to be added
* @ param name Name of the child to be added
*
* @ exception MBeanException if the child cannot be added
*/
public void addChild(String type, String name) throws MBeanException {
Container contained = (Container) newInstance(type);
contained.setName(name);
if (contained instanceof StandardHost) {
HostConfig config = new HostConfig();
contained.addLifecycleListener(config);
} else if (contained instanceof StandardContext) {
ContextConfig config = new ContextConfig();
contained.addLifecycleListener(config);
}
boolean oldValue = true ;
ContainerBase container = doGetManagedResource();
try {
oldValue = container.getStartChildren();
container.setStartChildren(false );
container.addChild(contained);
contained.init();
} catch (LifecycleException e) {
throw new MBeanException(e);
} finally {
if (container != null ) {
container.setStartChildren(oldValue);
}
}
}
/**
* Remove an existing child Container from association with this parent Container .
*
* @ param name Name of the existing child Container to be removed
*
* @ throws MBeanException if the child cannot be removed
*/
public void removeChild(String name) throws MBeanException {
if (name != null ) {
Container container = doGetManagedResource();
Container contained = container.findChild(name);
container.removeChild(contained);
}
}
/**
* Adds a valve to this Container instance .
*
* @ param valveType ClassName of the valve to be added
*
* @ return the MBean name of the new valve
*
* @ throws MBeanException if adding the valve failed
*/
public String addValve(String valveType) throws MBeanException {
Valve valve = (Valve) newInstance(valveType);
Container container = doGetManagedResource();
container.getPipeline().addValve(valve);
if (valve instanceof JmxEnabled) {
return ((JmxEnabled) valve).getObjectName().toString();
} else {
return null ;
}
}
/**
* Remove an existing Valve .
*
* @ param valveName MBean Name of the Valve to remove
*
* @ exception MBeanException if a component cannot be removed
*/
public void removeValve(String valveName) throws MBeanException {
Container container = doGetManagedResource();
ObjectName oname;
try {
oname = new ObjectName(valveName);
} catch (MalformedObjectNameException | NullPointerException e) {
throw new MBeanException(e);
}
if (container != null ) {
Valve[] valves = container.getPipeline().getValves();
for (Valve valve : valves) {
if (valve instanceof JmxEnabled) {
ObjectName voname = ((JmxEnabled) valve).getObjectName();
if (voname.equals(oname)) {
container.getPipeline().removeValve(valve);
}
}
}
}
}
/**
* Add a LifecycleEvent listener to this component .
*
* @ param type ClassName of the listener to add
*
* @ throws MBeanException if adding the listener failed
*/
public void addLifecycleListener(String type) throws MBeanException {
LifecycleListener listener = (LifecycleListener) newInstance(type);
Container container = doGetManagedResource();
container.addLifecycleListener(listener);
}
/**
* Remove a LifecycleEvent listeners from this component .
*
* @ param type The ClassName of the listeners to be removed . Note that all the listeners having given ClassName will
* be removed .
*
* @ throws MBeanException propagated from the managed resource access
*/
public void removeLifecycleListeners(String type) throws MBeanException {
Container container = doGetManagedResource();
LifecycleListener[] listeners = container.findLifecycleListeners();
for (LifecycleListener listener : listeners) {
if (listener.getClass().getName().equals(type)) {
container.removeLifecycleListener(listener);
}
}
}
/**
* List the class name of each of the lifecycle listeners added to this container .
*
* @ return the lifecycle listeners class names
*
* @ throws MBeanException propagated from the managed resource access
*/
public String[] findLifecycleListenerNames() throws MBeanException {
Container container = doGetManagedResource();
List<String> result = new ArrayList<>();
LifecycleListener[] listeners = container.findLifecycleListeners();
for (LifecycleListener listener : listeners) {
result.add(listener.getClass().getName());
}
return result.toArray(new String[0 ]);
}
/**
* List the class name of each of the container listeners added to this container .
*
* @ return the container listeners class names
*
* @ throws MBeanException propagated from the managed resource access
*/
public String[] findContainerListenerNames() throws MBeanException {
Container container = doGetManagedResource();
List<String> result = new ArrayList<>();
ContainerListener[] listeners = container.findContainerListeners();
for (ContainerListener listener : listeners) {
result.add(listener.getClass().getName());
}
return result.toArray(new String[0 ]);
}
}
Messung V0.5 in Prozent C=94 H=91 G=92
¤ Dauer der Verarbeitung: 0.4 Sekunden
¤
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