/*
* 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.ant.jmx;
import java.util.ArrayList;
import java.util.List;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import org.apache.tools.ant.BuildException;
/**
* Access <em>JMX</em> JSR 160 MBeans Server.
* <ul>
* <li>open more then one JSR 160 rmi connection</li>
* <li>Get/Set Mbeans attributes</li>
* <li>Call Mbean Operation with arguments</li>
* <li>Argument values can be converted from string to int,long,float,double,boolean,ObjectName or InetAddress </li>
* <li>Query Mbeans</li>
* <li>Show Get, Call, Query result at Ant console log</li>
* <li>Bind Get, Call, Query result at Ant properties</li>
* </ul>
*
* Examples:
* <ul>
* <li>
* Get a session attribute hello from session with ref <em>${sessionid.0}</em> form
* app <em>Catalina:type=Manager,path=/ClusterTest,host=localhost</em>
* <pre>
* <jmx:invoke
* name="Catalina:type=Manager,path=/ClusterTest,host=localhost"
* operation="getSessionAttribute"
* resultproperty="hello">
* <arg value="${sessionid.0}"/>
* <arg value="Hello"/>
* </jmx:invoke>
* </pre>
* </li>
* <li>
* Create new AccessLogger at localhost
* <code>
* <jmx:invoke
* name="Catalina:type=MBeanFactory"
* operation="createAccessLoggerValve"
* resultproperty="accessLoggerObjectName"
* >
* <arg value="Catalina:type=Host,host=localhost"/>
* </jmx:invoke>
*
* </code>
* </li>
* <li>
* Remove existing AccessLogger at localhost
* <code>
* <jmx:invoke
* name="Catalina:type=MBeanFactory"
* operation="removeValve"
* >
* <arg value="Catalina:type=Valve,name=AccessLogValve,host=localhost"/>
* </jmx:invoke>
*
* </code>
* </li>
* </ul>
* <p>
* First call to a remote MBeanserver save the JMXConnection a referenz <em>jmx.server</em>
* </p>
* These tasks require Ant 1.6 or later interface.
*
* @author Peter Rossbach
*
* @since 5.5.10
*/
public class JMXAccessorInvokeTask extends JMXAccessorTask {
// ----------------------------------------------------- Instance Variables
private String operation ;
private List args=new ArrayList();
// ----------------------------------------------------- Instance Info
/**
* Descriptive information describing this implementation.
*/
private static final String info = "org.apache.catalina.ant.JMXAccessorInvokeTask/1.0";
/**
* Return descriptive information about this implementation and the
* corresponding version number, in the format
* <code><description>/<version></code>.
*/
public String getInfo() {
return (info);
}
// ------------------------------------------------------------- Properties
/**
* @return Returns the operation.
*/
public String getOperation() {
return operation;
}
/**
* @param operation The operation to set.
*/
public void setOperation(String operation) {
this.operation = operation;
}
public void addArg(Arg arg ) {
args.add(arg);
}
/**
* @return Returns the args.
*/
public List getArgs() {
return args;
}
/**
* @param args The args to set.
*/
public void setArgs(List args) {
this.args = args;
}
// ------------------------------------------------------ protected Methods
/**
* Execute the specified command, based on the configured properties. The
* input stream will be closed upon completion of this task, whether it was
* executed successfully or not.
*
* @exception BuildException
* if an error occurs
*/
public String jmxExecute(MBeanServerConnection jmxServerConnection)
throws Exception {
if (getName() == null) {
throw new BuildException("Must specify a 'name'");
}
if ((operation == null)) {
throw new BuildException(
"Must specify a 'operation' for call");
}
return jmxInvoke(jmxServerConnection, getName());
}
/**
* @param jmxServerConnection
* @throws Exception
*/
protected String jmxInvoke(MBeanServerConnection jmxServerConnection, String name) throws Exception {
Object result ;
if (args == null) {
result = jmxServerConnection.invoke(new ObjectName(name),
operation, null, null);
} else {
Object argsA[]=new Object[ args.size()];
String sigA[]=new String[args.size()];
for( int i=0; i<args.size(); i++ ) {
Arg arg=(Arg)args.get(i);
if( arg.type==null) {
arg.type="java.lang.String";
sigA[i]=arg.getType();
argsA[i]=arg.getValue();
} else {
sigA[i]=arg.getType();
argsA[i]=convertStringToType(arg.getValue(),arg.getType());
}
}
result = jmxServerConnection.invoke(new ObjectName(name), operation, argsA, sigA);
}
if(result != null) {
echoResult(operation,result);
createProperty(result);
}
return null;
}
}