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/*
* 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.tools.ant.taskdefs.optional.j2ee;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.taskdefs.Java;
import org.apache.tools.ant.types.Commandline;
/**
* A generic tool for J2EE server hot deployment.
* <p>The simple implementation spawns a JVM with the supplied
* class name, jvm args, and arguments.
*
* @see org.apache.tools.ant.taskdefs.optional.j2ee.HotDeploymentTool
* @see org.apache.tools.ant.taskdefs.optional.j2ee.AbstractHotDeploymentTool
* @see org.apache.tools.ant.taskdefs.optional.j2ee.ServerDeploy
*/
public class GenericHotDeploymentTool extends AbstractHotDeploymentTool {
/** A Java task used to run the deployment tool **/
private Java java;
/** The fully qualified class name of the deployment tool **/
private String className;
/** List of valid actions **/
private static final String[] VALID_ACTIONS = {ACTION_DEPLOY};
/**
* Add a nested argument element to hand to the deployment tool; optional.
* @return A Commandline.Argument object representing the
* command line argument being passed when the deployment
* tool is run. IE: "-user=mark", "-password=venture"...
*/
public Commandline.Argument createArg() {
return java.createArg();
}
/**
* Add a nested argument element to hand to the JVM running the
* deployment tool.
* Creates a nested arg element.
* @return A Commandline.Argument object representing the
* JVM command line argument being passed when the deployment
* tool is run. IE: "-ms64m", "-mx128m"...
*/
public Commandline.Argument createJvmarg() {
return java.createJvmarg();
}
/**
* Determines if the "action" attribute defines a valid action.
* <p>Subclasses should determine if the action passed in is
* supported by the vendor's deployment tool.
* For this generic implementation, the only valid action is "deploy"
* @return true if the "action" attribute is valid, false if not.
*/
protected boolean isActionValid() {
return (getTask().getAction().equals(VALID_ACTIONS[0]));
}
/**
* Sets the parent task.
* @param task An ServerDeploy object representing the parent task.
* @ant.attribute ignored="true"
*/
public void setTask(ServerDeploy task) {
super.setTask(task);
java = new Java(task);
}
/**
* Perform the actual deployment.
* For this generic implementation, a JVM is spawned using the
* supplied classpath, classname, JVM args, and command line arguments.
* @exception org.apache.tools.ant.BuildException if the attributes are invalid or incomplete.
*/
public void deploy() throws BuildException {
java.setClassname(className);
java.setClasspath(getClasspath());
java.setFork(true);
java.setFailonerror(true);
java.execute();
}
/**
* Validates the passed in attributes.
* Ensures the className and arguments attribute have been set.
* @exception org.apache.tools.ant.BuildException if the attributes are invalid or incomplete.
*/
public void validateAttributes() throws BuildException {
super.validateAttributes();
if (className == null) {
throw new BuildException("The classname attribute must be set");
}
}
/**
* The name of the class to execute to perform
* deployment; required.
* Example: "com.foobar.tools.deploy.DeployTool"
* @param className The fully qualified class name of the class
* to perform deployment.
*/
public void setClassName(String className) {
this.className = className;
}
/**
* get the java attribute.
* @return the java attribute.
*/
public Java getJava() {
return java;
}
/**
* Get the classname attribute.
* @return the classname value.
*/
public String getClassName() {
return className;
}
}
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