EJB hot deploy tool, contributed by Christopher A. Longo - cal@cloud9.net

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@272013 13f79535-47bb-0310-9956-ffa450edef68

src/main/org/apache/tools/ant/taskdefs/optional/ejb/AbstractEjbHotDeploymentTool.java

@@ -0,0 +1,158 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2002 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+
+package org.apache.tools.ant.taskdefs.optional.ejb;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Task;
+
+/**
+ *  Abstract class to support vendor-specific hot deployment tools.
+ *  This class will validate boilerplate attributes.
+ *
+ *  Subclassing this class for a vendor specific tool involves the
+ *  following.
+ *  <ol>
+ *  <li>Implement the <code>getClassName()</code> method to supply the
+ *  super-task class name of the vendor specific deployment tool to run.
+ *  <li>Implement the <code>getArguments()</code> method to supply the
+ *  super-task the command line to pass for the vendor specific deployment
+ *  tool.
+ *  <li>Implement the <code>isActionValid()<code> method to insure the
+ *  action supplied as the "action" attribute of EjbDeploy is valid.
+ *  <li>Implement the <code>validateAttributes()</code> method to insure
+ *  all required attributes are supplied, and are in the correct format.
+ *  <li>Add a <code>create&lt;TOOL&gt;</code> method to the EjbDeploy
+ *  class.  This method will be called when Ant encounters a
+ *  <code>create&lt;TOOL&gt;</code> task nested in the
+ *  <code>ejbdeploy</code> task.
+ *
+ *  @author Christopher A. Longo - cal@cloud9.net
+ *
+ *  @see EjbHotDeploymentTool
+ *  @see EjbDeploy
+ */
+public abstract class AbstractEjbHotDeploymentTool
+        extends Task
+        implements EjbHotDeploymentTool
+{
+    /** The super-task **/
+    private EjbDeploy deploy;
+
+    /**
+     *  Constructor.
+     *  @param deploy The super-task which wraps this one.
+     */
+    public AbstractEjbHotDeploymentTool(EjbDeploy deploy) {
+        this.deploy = deploy;
+    }
+
+    /**
+     *  Returns the class name of the weblogic.deploy tool to the super-task.
+     *  <p>This is called by the super-task, EjbDeploy.
+     *  <p>Subclasses should return the fully qualified class name of the
+     *  vendor tool to run.  IE: "com.foobar.tools.DeployTool"
+     *  @return A String representing the classname of the deployment tool to run
+     */
+    public abstract String getClassName();
+
+    /**
+     *  Returns a String containing the runtime commandline arguments
+     *  of the deployment tool.
+     *  <p>Subclasses should return the appropriate string from that
+     *  vendor's tool.  IE: "-url=http://myserver:31337 -user=foo -passsword=bar"
+     *  @return a String containing the runtime commandline arguments
+     *  of the deployment tool.
+     */
+    public abstract String getArguments();
+
+    /**
+     *  Validates the passed in attributes.
+     *  Subclasses should chain to this super-method to insure
+     *  validation of boilerplate attributes.
+     *  <p>Only the "action" and "password" attributes are required in the
+     *  base class.  Subclasses should check attributes accordingly.
+     *  @exception BuildException if the attributes are invalid or incomplete
+     */
+    public void validateAttributes() throws BuildException {
+        String action = deploy.getAction();
+
+        if(action == null)
+            throw new BuildException("The \"action\" attribute must be set");
+
+        if(!isActionValid())
+            throw new BuildException("Invalid action \"" + action + "\" passed");
+
+        if(deploy.getPassword() == null)
+            throw new BuildException("The WebLogic system password must be set");
+    }
+
+    /**
+     *  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.
+     *  <p>Actions may by "deploy", "delete", etc... It all depends
+     *  on the tool.
+     *  @return true if the "action" attribute is valid, false if not.
+     */
+    protected abstract boolean isActionValid();
+
+    /**
+     *  Returns the super-task.
+     *  @return An EjbDeploy object representing the super-task.
+     */
+    protected EjbDeploy getDeploy() {
+        return deploy;
+    }
+}

src/main/org/apache/tools/ant/taskdefs/optional/ejb/EjbDeploy.java

@@ -0,0 +1,263 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2002 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+
+package org.apache.tools.ant.taskdefs.optional.ejb;
+
+import java.io.File;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Task;
+import org.apache.tools.ant.taskdefs.Java;
+import org.apache.tools.ant.types.Path;
+
+/**
+ *  A task to support "hot" deployment tools for J2EE servers.
+ *
+ *  This class is used as a framework for the creation of vendor specific
+ *  "hot" deployment tools.
+ *
+ *  @author Christopher A. Longo - cal@cloud9.net
+ *
+ *  @see EjbHotDeploymentTool
+ *  @see AbstractEjbHotDeploymentTool
+ *  @see WebLogicHotDeploymentTool
+ */
+public class EjbDeploy extends Task
+{
+    /** The action to be performed.  IE: "deploy", "delete", etc... **/
+    private String action;
+
+    /** The classpath passed to the JVM on execution. **/
+    private Path classpath;
+
+    /** The username for the deployment server. **/
+    private String userName;
+
+    /** The password for the deployment server. **/
+    private String password;
+
+    /** The URL of the deployment server **/
+    private String serverUrl;
+
+    /** The source (fully-qualified path) to the component being deployed **/
+    private File source;
+
+    /** The vendor specific tool for deploying the component **/
+    private EjbHotDeploymentTool vendorTool;
+
+    /**
+     *  Creates a classpath.  Used to handle the nested classpath
+     *  element.
+     *  @return A Path object representing the classpath to be used.
+     */
+    public Path createClasspath() {
+        if(classpath == null)
+            classpath = new Path(project);
+
+        return classpath.createPath();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    //
+    //	Place vendor specific tool creations here.
+    //
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     *  Creates a WebLogic deployment tool, for deployment to WebLogic servers.
+     *  <p>Ant calls this method on creation to handle embedded "weblogic" tags
+     *  in the EjbDeploy task.
+     *  @return An instance of WebLogicHotDeployment tool.
+     */
+    public WebLogicHotDeploymentTool createWeblogic() {
+        WebLogicHotDeploymentTool weblogic = new WebLogicHotDeploymentTool(this);
+        vendorTool = (EjbHotDeploymentTool)weblogic;
+        return weblogic;
+    }
+
+    /**
+     *  Execute the task.
+     *  <p>This will fork a JVM and run the vendor-specific deployment tool.
+     *  The process will fail if the tool returns an error.
+     *  @exception BuildException if the attributes are invalid or incomplete
+     */
+    public void execute() throws BuildException {
+        if (vendorTool == null) {
+            throw new BuildException("No vendor tool specified");
+        }
+        
+        vendorTool.validateAttributes();
+
+        Java deploy = (Java)project.createTask("java");
+        deploy.setFork(true);
+        deploy.setFailonerror(true);
+        deploy.setClasspath(classpath);
+
+        deploy.setClassname(vendorTool.getClassName());
+        deploy.createArg().setLine(vendorTool.getArguments());
+        deploy.execute();
+
+        deploy = null;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    //
+    //	Set/get methods
+    //
+    ///////////////////////////////////////////////////////////////////////////
+
+    /**
+     *  Returns the action field.
+     *  @return A string representing the "action" attribute.
+     */
+    public String getAction() {
+        return action;
+    }
+
+    /**
+     *  Sets the action field.
+     *  This is a required attribute.
+     *  @param action A String representing the "action" attribute.
+     */
+    public void setAction(String action) {
+        this.action = action;
+    }
+
+    /**
+     *  gets the classpath field.
+     *  @return A Path representing the "classpath" attribute.
+     */
+    public Path getClasspath() {
+        return classpath;
+    }
+
+    /**
+     *  Sets the classpath field.
+     *  This is not a required attribute.
+     *  @param classpath A Path object representing the "classpath" attribute.
+     */
+    public void setClasspath(Path classpath) {
+        this.classpath = classpath;
+    }
+
+    /**
+     *  Returns the userName field.
+     *  @return A String representing the "userName" attribute.
+     */
+    public String getUserName() {
+        return userName;
+    }
+
+    /**
+     *  Sets the userName field.
+     *  This is not a required attribute.
+     *  @param userName A String representing the "userName" attribute.
+     */
+    public void setUserName(String userName) {
+        this.userName = userName;
+    }
+
+    /**
+     *  Returns the password field.
+     *  @return A String representing the "password" attribute.
+     */
+    public String getPassword() {
+        return password;
+    }
+
+    /**
+     *  Set the password field.
+     *  This is a required attribute.
+     *  @param A String representing the "password" attribute.
+     */
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    /**
+     *  Returns the serverUrl field.
+     *  @return A String representing the "serverUrl" attribute.
+     */
+    public String getServerUrl() {
+        return serverUrl;
+    }
+
+    /**
+     *  Sets the serverUrl field.
+     *  This is not a required attribute.
+     *  @param serverUrl A String representing the "serverUrl" attribute.
+     */
+    public void setServerUrl(String serverUrl) {
+        this.serverUrl = serverUrl;
+    }
+
+    /**
+     *  Returns the source field (the path/filename of the component to be
+     *  deployed.
+     *  @return A File object representing the "source" attribute.
+     */
+    public File getSource() {
+        return source;
+    }
+
+    /**
+     *  Sets the source field (the path/filename of the component to be
+     *  deployed.
+     *  This is not a required attribute.
+     *  @param A String representing the "source" attribute.
+     */
+    public void setSource(File source) {
+        this.source = source;
+    }
+}

src/main/org/apache/tools/ant/taskdefs/optional/ejb/EjbHotDeploymentTool.java

@@ -0,0 +1,97 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2002 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+package org.apache.tools.ant.taskdefs.optional.ejb;
+
+import org.apache.tools.ant.BuildException;
+
+/**
+ *  An interface for vendor-specific "hot" deployment tools.
+ *
+ *  @author Christopher A. Longo - cal@cloud9.net
+ *
+ *  @see AbstractEjbHotDeploymentTool
+ *  @see EjbDeploy
+ */
+public interface EjbHotDeploymentTool
+{
+    /**
+     *  Returns the class name of the weblogic.deploy tool to the super-task.
+     *  <p>This is called by the super-task, EjbDeploy.
+     *  <p>Subclasses should return the fully qualified class name of the
+     *  vendor tool to run.  IE: "com.foobar.tools.DeployTool"
+     *  @return A String representing the classname of the deployment tool to run
+     */
+    public String getClassName();
+
+    /**
+     *  Validates the passed in attributes.
+     *  <p>The rules are:
+     *  <ol><li>If action is "deploy" or "update" the "application" and "source"
+     *  attributes must be supplied.
+     *  <li>If action is "delete" or "undeploy" the "application" attribute must
+     *  be supplied.
+     *  @exception BuildException if the attributes are invalid or incomplete
+     */
+    public void validateAttributes() throws BuildException;
+
+    /**
+     *  Returns a String containing the runtime commandline arguments
+     *  of the deployment tool.
+     *  <p>Subclasses should return the appropriate string from that
+     *  vendor's tool.  IE: "-url=http://myserver:31337 -user=foo -passsword=bar"
+     *  @return a String containing the runtime commandline arguments
+     *  of the deployment tool.
+     */
+    public String getArguments() throws BuildException;
+}

src/main/org/apache/tools/ant/taskdefs/optional/ejb/WebLogicHotDeploymentTool.java

@@ -0,0 +1,291 @@
+/*
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2002 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution, if
+ *    any, must include the following acknowlegement:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowlegement may appear in the software itself,
+ *    if and wherever such third-party acknowlegements normally appear.
+ *
+ * 4. The names "The Jakarta Project", "Ant", and "Apache Software
+ *    Foundation" must not be used to endorse or promote products derived
+ *    from this software without prior written permission. For written
+ *    permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache"
+ *    nor may "Apache" appear in their names without prior written
+ *    permission of the Apache Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+
+package org.apache.tools.ant.taskdefs.optional.ejb;
+
+import org.apache.tools.ant.BuildException;
+
+/**
+ *  An Ant wrapper task for the weblogic.deploy tool.  This is used to
+ *  hot-deploy J2EE applications to a running WebLogic server.
+ *  This is <b>not</b> 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.
+ *  <p>
+ *  In the end, this task assembles the commadline parameters
+ *  to run the weblogic.deploy tool.
+ *
+ *  @author Christopher A. Longo - cal@cloud9.net
+ *
+ *  @see EjbHotDeploymentTool
+ *  @see AbstractEjbHotDeploymentTool
+ *  @see EjbDeploy
+ */
+public class WebLogicHotDeploymentTool
+        extends AbstractEjbHotDeploymentTool
+        implements EjbHotDeploymentTool
+{
+    /** The delete action String **/
+    public static final String ACTION_DELETE = "delete";
+
+    /** The deploy action String **/
+    public static final String ACTION_DEPLOY = "deploy";
+
+    /** The list action String **/
+    public static final String ACTION_LIST = "list";
+
+    /** The undeploy action String **/
+    public static final String ACTION_UNDEPLOY = "undeploy";
+
+    /** The update action String **/
+    public static final String ACTION_UPDATE = "update";
+
+    /** 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 **/
+    public boolean debug;
+
+    /** The application name that is being deployed **/
+    public String application;
+
+    /** The component name:target(s) for the "-component" argument of weblogic.deploy **/
+    public String component;
+
+    /**
+     *  Constructor
+     *  @param deploy - The super-task which wraps this task
+     */
+    public WebLogicHotDeploymentTool(EjbDeploy deploy) {
+        super(deploy);
+    }
+
+    /**
+     *  Returns the class name of the weblogic.deploy tool to the super-task.
+     *  <p>This is called by the super-task, EjbDeploy.
+     *  @return A String representing the classname of the deployment tool to run
+     */
+    public String getClassName() {
+        return WEBLOGIC_DEPLOY_CLASS_NAME;
+    }
+
+    /**
+     *  Validates the passed in attributes.
+     *  <p>The rules are:
+     *  <ol><li>If action is "deploy" or "update" the "application" and "source"
+     *  attributes must be supplied.
+     *  <li>If action is "delete" or "undeploy" the "application" attribute must
+     *  be supplied.
+     *  @exception BuildException if the attributes are invalid or incomplete
+     */
+    public void validateAttributes() throws BuildException {
+        super.validateAttributes();
+
+        String action = getDeploy().getAction();
+
+        // 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))
+                && getDeploy().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.
+     */
+    public String getArguments() throws BuildException {
+        String action = getDeploy().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.
+     *  <p>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 = getDeploy().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() {
+        EjbDeploy deploy = getDeploy();
+
+        // constructs the "-url <url> -debug <action> <password>" portion
+        // of the commmand line
+        return new StringBuffer(1024)
+                .append((deploy.getServerUrl() != null)
+                ? "-url " + deploy.getServerUrl()
+                : "")
+                .append(" ")
+                .append(debug ? "-debug " : "")
+                .append((deploy.getUserName() != null)
+                ? "-username " + deploy.getUserName()
+                : "")
+                .append(" ")
+                .append(deploy.getAction()).append(" ")
+                .append(deploy.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(getDeploy().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();
+    }
+
+    /**
+     *  Sets the debug field.
+     *  <p>This attribute is not a required attribute.
+     *  @param debug A boolean representing weblogic.deploy "-debug" flag.
+     */
+    public void setDebug(boolean debug) {
+        this.debug = debug;
+    }
+
+    /**
+     *  Sets the application field.
+     *  <p>This attribute is a required attribute.
+     *  @param application A String representing the application portion of the
+     *  weblogic.deploy command line.
+     */
+    public void setApplication(String application) {
+        this.application = application;
+    }
+
+    /**
+     *  Sets the component attribute.
+     *  <p>This attribute is not a required attribute.
+     *  @param component A String representing the value of the "-component"
+     *  argument of the weblogic.deploy command line argument.<br>
+     *  This string should be in the format of
+     *  &lt;<i>componentName</i>&gt;:&lt<i>target1</i>&gt;,&lt<i>target2</i>&gt;...
+     */
+    public void setComponent(String component) {
+        this.component = component;
+    }
+}