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The ActiveMQ Message Broker and Client implementations
/**
* 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.activemq.broker.jmx;
import org.apache.activemq.broker.Broker;
import org.apache.activemq.broker.TransportConnection;
import org.apache.activemq.broker.TransportConnector;
import org.apache.activemq.command.ConnectionInfo;
import org.apache.activemq.command.Response;
import org.apache.activemq.thread.TaskRunnerFactory;
import org.apache.activemq.transport.Transport;
import org.apache.activemq.util.IOExceptionSupport;
import org.apache.activemq.util.JMXSupport;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.io.IOException;
import java.util.Hashtable;
import javax.management.ObjectName;
/**
* A managed transport connection
*
* @version $Revision: 1.1 $
*/
public class ManagedTransportConnection extends TransportConnection {
private static final Log LOG = LogFactory.getLog(ManagedTransportConnection.class);
private final ManagementContext managementContext;
private final ObjectName connectorName;
private ConnectionViewMBean mbean;
private ObjectName byClientIdName;
private ObjectName byAddressName;
public ManagedTransportConnection(TransportConnector connector, Transport transport, Broker broker,
TaskRunnerFactory factory, ManagementContext context, ObjectName connectorName)
throws IOException {
super(connector, transport, broker, factory);
this.managementContext = context;
this.connectorName = connectorName;
this.mbean = new ConnectionView(this);
byAddressName = createByAddressObjectName("address", transport.getRemoteAddress());
registerMBean(byAddressName);
}
public void doStop() throws Exception {
if (isStarting()) {
setPendingStop(true);
return;
}
synchronized (this) {
unregisterMBean(byClientIdName);
unregisterMBean(byAddressName);
byClientIdName = null;
byAddressName = null;
}
super.doStop();
}
/**
* Sets the connection ID of this connection. On startup this connection ID
* is set to an incrementing counter; once the client registers it is set to
* the clientID of the JMS client.
*/
public void setConnectionId(String connectionId) throws IOException {
}
public Response processAddConnection(ConnectionInfo info) throws Exception {
Response answer = super.processAddConnection(info);
String clientId = info.getClientId();
if (clientId != null) {
if (byClientIdName == null) {
byClientIdName = createByClientIdObjectName(clientId);
registerMBean(byClientIdName);
}
}
return answer;
}
// Implementation methods
// -------------------------------------------------------------------------
protected void registerMBean(ObjectName name) {
if (name != null) {
try {
AnnotatedMBean.registerMBean(managementContext, mbean, name);
} catch (Throwable e) {
LOG.warn("Failed to register MBean: " + name);
LOG.debug("Failure reason: " + e, e);
}
}
}
protected void unregisterMBean(ObjectName name) {
if (name != null) {
try {
managementContext.unregisterMBean(name);
} catch (Throwable e) {
LOG.warn("Failed to unregister mbean: " + name);
LOG.debug("Failure reason: " + e, e);
}
}
}
protected ObjectName createByAddressObjectName(String type, String value) throws IOException {
// Build the object name for the destination
Hashtable map = connectorName.getKeyPropertyList();
try {
return new ObjectName(connectorName.getDomain() + ":" + "BrokerName="
+ JMXSupport.encodeObjectNamePart((String)map.get("BrokerName")) + ","
+ "Type=Connection," + "ConnectorName="
+ JMXSupport.encodeObjectNamePart((String)map.get("ConnectorName")) + ","
+ "ViewType=" + JMXSupport.encodeObjectNamePart(type) + "," + "Name="
+ JMXSupport.encodeObjectNamePart(value));
} catch (Throwable e) {
throw IOExceptionSupport.create(e);
}
}
protected ObjectName createByClientIdObjectName(String value) throws IOException {
// Build the object name for the destination
Hashtable map = connectorName.getKeyPropertyList();
try {
return new ObjectName(connectorName.getDomain() + ":" + "BrokerName="
+ JMXSupport.encodeObjectNamePart((String)map.get("BrokerName")) + ","
+ "Type=Connection," + "ConnectorName="
+ JMXSupport.encodeObjectNamePart((String)map.get("ConnectorName")) + ","
+ "Connection=" + JMXSupport.encodeObjectNamePart(value));
} catch (Throwable e) {
throw IOExceptionSupport.create(e);
}
}
}