| career | drupal | java | mac | mysql | perl | scala | uml | unix  

Ant example source code file (

This example Ant source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Ant tags/keywords

buildexception, buildexception, p4base, p4base, p4revert, p4revert, p4view, simplep4outputhandler, string, string

The source code

 *  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
 *  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.
 * Portions of this software are based upon public domain software
 * originally written at the National Center for Supercomputing Applications,
 * University of Illinois, Urbana-Champaign.



 * Revert Perforce open files or files in a changelist
 * @ant.task category="scm"
public class P4Revert extends P4Base {

    private String revertChange = null;
    private boolean onlyUnchanged = false;

     * The changelist to revert; optional.
     * @param revertChange : the change list to revert
     * @throws BuildException if the change list is null or empty string
    public void setChange(String revertChange) throws BuildException {
        if (revertChange == null || revertChange.equals("")) {
            throw new BuildException("P4Revert: change cannot be null or empty");

        this.revertChange = revertChange;


     * flag to revert only unchanged files (p4 revert -a); optional, default false.
     * @param onlyUnchanged if set to true revert only unchanged files
    public void setRevertOnlyUnchanged(boolean onlyUnchanged) {
        this.onlyUnchanged = onlyUnchanged;

     * do the work
     * @throws BuildException if an error occurs during the execution of the Perforce command
     * and failonError is set to true
    public void execute() throws BuildException {

        /* Here we can either revert any unchanged files in a changelist
         * or
         * any files regardless of whether they have been changed or not
         * The whole process also accepts a p4 filespec
        String p4cmd = "-s revert";
        if (onlyUnchanged) {
            p4cmd += " -a";

        if (revertChange != null) {
            p4cmd += " -c " + revertChange;

        execP4Command(p4cmd + " " + P4View, new SimpleP4OutputHandler(this));

Other Ant examples (source code examples)

Here is a short list of links related to this Ant source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller


new blog posts


Copyright 1998-2021 Alvin Alexander,
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.