/*
* 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.io.IOException;
import java.net.MalformedURLException;
import javax.management.MBeanServerConnection;
import javax.management.ObjectName;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.ProjectComponent;
import org.apache.tools.ant.taskdefs.condition.Condition;
/**
*
* Definition
* <pre>
* <path id="catalina_ant">
* <fileset dir="${catalina.home}/server/lib">
* <include name="catalina-ant.jar"/>
* </fileset>
* </path>
*
* <typedef
* name="jmxEquals"
* classname="org.apache.catalina.ant.jmx.JMXAccessorEqualsCondition"
* classpathref="catalina_ant"/>
* </pre>
*
* usage: Wait for start backup node
* <pre>
* <target name="wait">
* <waitfor maxwait="${maxwait}" maxwaitunit="second" timeoutproperty="server.timeout" >
* <and>
* <socket server="${server.name}" port="${server.port}"/>
* <http url="${url}"/>
* <jmxEquals
* host="localhost" port="9014" username="controlRole" password="tomcat"
* name="Catalina:type=IDataSender,host=localhost,senderAddress=192.168.111.1,senderPort=9025"
* attribute="connected" value="true"
* />
* </and>
* </waitfor>
* <fail if="server.timeout" message="Server ${url} don't answer inside ${maxwait} sec" />
* <echo message="Server ${url} alive" />
* </target>
*
* </pre>
*
* @author Peter Rossbach
*
* @since 5.5.10
*
*/
public class JMXAccessorEqualsCondition extends ProjectComponent implements Condition {
// ----------------------------------------------------- Instance Variables
private String url = null;
private String host = "localhost";
private String port = "8050";
private String password = null;
private String username = null;
private String name = null;
private String attribute;
private String value;
private String ref = "jmx.server" ;
// ----------------------------------------------------- Instance Info
/**
* Descriptive information describing this implementation.
*/
private static final String info = "org.apache.catalina.ant.JMXAccessorEqualsCondition/1.1";
/**
* 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 attribute.
*/
public String getAttribute() {
return attribute;
}
/**
* @param attribute The attribute to set.
*/
public void setAttribute(String attribute) {
this.attribute = attribute;
}
/**
* @return Returns the host.
*/
public String getHost() {
return host;
}
/**
* @param host The host to set.
*/
public void setHost(String host) {
this.host = host;
}
/**
* @return Returns the name.
*/
public String getName() {
return name;
}
/**
* @param objectName The name to set.
*/
public void setName(String objectName) {
this.name = objectName;
}
/**
* @return Returns the password.
*/
public String getPassword() {
return password;
}
/**
* @param password The password to set.
*/
public void setPassword(String password) {
this.password = password;
}
/**
* @return Returns the port.
*/
public String getPort() {
return port;
}
/**
* @param port The port to set.
*/
public void setPort(String port) {
this.port = port;
}
/**
* @return Returns the url.
*/
public String getUrl() {
return url;
}
/**
* @param url The url to set.
*/
public void setUrl(String url) {
this.url = url;
}
/**
* @return Returns the username.
*/
public String getUsername() {
return username;
}
/**
* @param username The username to set.
*/
public void setUsername(String username) {
this.username = username;
}
/**
* @return Returns the value.
*/
public String getValue() {
return value;
}
// The setter for the "value" attribute
public void setValue(String value) {
this.value = value;
}
/**
* @return Returns the ref.
*/
public String getRef() {
return ref;
}
/**
* @param refId The ref to set.
*/
public void setRef(String refId) {
this.ref = refId;
}
protected MBeanServerConnection getJMXConnection()
throws MalformedURLException, IOException {
return JMXAccessorTask.accessJMXConnection(
getProject(),
getUrl(), getHost(),
getPort(), getUsername(), getPassword(), ref);
}
/**
* @return The value
*/
protected String accessJMXValue() {
try {
Object result = getJMXConnection().getAttribute(
new ObjectName(name), attribute);
if(result != null)
return result.toString();
} catch (Exception e) {
// ignore access or connection open errors
}
return null;
}
// This method evaluates the condition
public boolean eval() {
if (value == null) {
throw new BuildException("value attribute is not set");
}
if ((name == null || attribute == null)) {
throw new BuildException(
"Must specify a 'attribute', name for equals condition");
}
//FIXME check url or host/parameter
String jmxValue = accessJMXValue();
if(jmxValue != null)
return jmxValue.equals(value);
return false;
}
}