org.apache.tools.ant.taskdefs.optional.j2ee.WebLogicHotDeploymentTool Maven / Gradle / Ivy
/*
* 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;
/**
* An Ant wrapper task for the weblogic.deploy tool. This is used to
* hot-deploy J2EE applications to a running WebLogic server.
* This is not the same as creating the application archive.
* This task assumes the archive (EAR, JAR, or WAR) file has been
* assembled and is supplied as the "source" attribute.
* In the end, this task assembles the commadline parameters
* and runs the weblogic.deploy tool in a seperate JVM.
*
* @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 WebLogicHotDeploymentTool extends AbstractHotDeploymentTool
implements HotDeploymentTool {
private static final int STRING_BUFFER_SIZE = 1024;
/** The classname of the tool to run **/
private static final String WEBLOGIC_DEPLOY_CLASS_NAME = "weblogic.deploy";
/** All the valid actions that weblogic.deploy permits **/
private static final String[] VALID_ACTIONS
= {ACTION_DELETE, ACTION_DEPLOY, ACTION_LIST, ACTION_UNDEPLOY, ACTION_UPDATE};
/** Represents the "-debug" flag from weblogic.deploy **/
private boolean debug;
/** The application name that is being deployed **/
private String application;
/** The component name:target(s) for the "-component" argument of weblogic.deploy **/
private String component;
/**
* Perform the actual deployment.
* For this implementation, a JVM is spawned and the weblogic.deploy
* tools is executed.
* @exception org.apache.tools.ant.BuildException if the attributes are invalid or incomplete.
*/
public void deploy() {
Java java = new Java(getTask());
java.setFork(true);
java.setFailonerror(true);
java.setClasspath(getClasspath());
java.setClassname(WEBLOGIC_DEPLOY_CLASS_NAME);
java.createArg().setLine(getArguments());
java.execute();
}
/**
* Validates the passed in attributes.
*
The rules are:
*
- If action is "deploy" or "update" the "application" and "source"
* attributes must be supplied.
*
- If action is "delete" or "undeploy" the "application" attribute must
* be supplied.
* @exception org.apache.tools.ant.BuildException if the attributes are invalid or incomplete
*/
public void validateAttributes() throws BuildException {
super.validateAttributes();
String action = getTask().getAction();
// check that the password has been set
if ((getPassword() == null)) {
throw new BuildException("The password attribute must be set.");
}
// check for missing application on deploy & update
if ((action.equals(ACTION_DEPLOY) || action.equals(ACTION_UPDATE))
&& application == null) {
throw new BuildException("The application attribute must be set "
+ "if action = " + action);
}
// check for missing source on deploy & update
if ((action.equals(ACTION_DEPLOY) || action.equals(ACTION_UPDATE))
&& getTask().getSource() == null) {
throw new BuildException("The source attribute must be set if "
+ "action = " + action);
}
// check for missing application on delete & undeploy
if ((action.equals(ACTION_DELETE) || action.equals(ACTION_UNDEPLOY))
&& application == null) {
throw new BuildException("The application attribute must be set if "
+ "action = " + action);
}
}
/**
* Builds the arguments to pass to weblogic.deploy according to the
* supplied action.
* @return A String containing the arguments for the weblogic.deploy tool.
* @throws BuildException if there is an error.
*/
public String getArguments() throws BuildException {
String action = getTask().getAction();
String args = null;
if (action.equals(ACTION_DEPLOY) || action.equals(ACTION_UPDATE)) {
args = buildDeployArgs();
} else if (action.equals(ACTION_DELETE) || action.equals(ACTION_UNDEPLOY)) {
args = buildUndeployArgs();
} else if (action.equals(ACTION_LIST)) {
args = buildListArgs();
}
return args;
}
/**
* Determines if the action supplied is valid.
*
Valid actions are contained in the static array VALID_ACTIONS
* @return true if the action attribute is valid, false if not.
*/
protected boolean isActionValid() {
boolean valid = false;
String action = getTask().getAction();
for (int i = 0; i < VALID_ACTIONS.length; i++) {
if (action.equals(VALID_ACTIONS[i])) {
valid = true;
break;
}
}
return valid;
}
/**
* Builds the prefix arguments to pass to weblogic.deploy.
* These arguments are generic across all actions.
* @return A StringBuffer containing the prefix arguments.
* The action-specific build methods will append to this StringBuffer.
*/
protected StringBuffer buildArgsPrefix() {
ServerDeploy task = getTask();
// constructs the "-url -debug " portion
// of the commmand line
return new StringBuffer(STRING_BUFFER_SIZE)
.append((getServer() != null)
? "-url " + getServer()
: "")
.append(" ")
.append(debug ? "-debug " : "")
.append((getUserName() != null)
? "-username " + getUserName()
: "")
.append(" ")
.append(task.getAction()).append(" ")
.append(getPassword()).append(" ");
}
/**
* Builds the arguments to pass to weblogic.deploy for deployment actions
* ("deploy" and "update").
* @return A String containing the full argument string for weblogic.deploy.
*/
protected String buildDeployArgs() {
String args = buildArgsPrefix()
.append(application).append(" ")
.append(getTask().getSource())
.toString();
if (component != null) {
args = "-component " + component + " " + args;
}
return args;
}
/**
* Builds the arguments to pass to weblogic.deploy for undeployment actions
* ("undeploy" and "delete").
* @return A String containing the full argument string for weblogic.deploy.
*/
protected String buildUndeployArgs() {
return buildArgsPrefix()
.append(application).append(" ")
.toString();
}
/**
* Builds the arguments to pass to weblogic.deploy for the list action
* @return A String containing the full argument string for weblogic.deploy.
*/
protected String buildListArgs() {
return buildArgsPrefix()
.toString();
}
/**
* If set to true, additional information will be
* printed during the deployment process; optional.
* @param debug A boolean representing weblogic.deploy "-debug" flag.
*/
public void setDebug(boolean debug) {
this.debug = debug;
}
/**
* The name of the application being deployed; required.
* @param application A String representing the application portion of the
* weblogic.deploy command line.
*/
public void setApplication(String application) {
this.application = application;
}
/**
* the component string for the deployment targets; optional.
* It is in the form <component>:<target1>,<target2>...
* Where component is the archive name (minus the .jar, .ear, .war
* extension). Targets are the servers where the components will be deployed
* @param component A String representing the value of the "-component"
* argument of the weblogic.deploy command line argument.
*/
public void setComponent(String component) {
this.component = component;
}
}