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/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001-2002 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/>.
*/
/*
* Portions of this software are based upon public domain software
* originally written at the National Center for Supercomputing Applications,
* University of Illinois, Urbana-Champaign.
*/
package org.apache.tools.ant.taskdefs.optional.perforce;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
/**
* Obtains or sets the value of a counter.
*
* <p> When used in its base form
* (where only the counter name is provided), the counter value will be
* printed to the output stream. When the value is provided, the counter
* will be set to the value provided. When a property name is provided,
* the property will be filled with the value of the counter. You may
* not specify to both get and set the value of the counter in the same
* Task.
* </p>
* <P>
* The user performing this task must have Perforce "review" permissions
* as defined by Perforce protections in order for this task to succeed.
</P>
* Example Usage:<br>
* <p4counter name="${p4.counter}" property=${p4.change}"/>
* @author <a href="mailto:kirk@radik.com">Kirk Wylie</a>
*/
public class P4Counter extends P4Base {
public String counter = null;
public String property = null;
public boolean shouldSetValue = false;
public boolean shouldSetProperty = false;
public int value = 0;
/**
* The name of the counter; required
*/
public void setName(String counter) {
this.counter = counter;
}
/**
* The new value for the counter; optional.
*/
public void setValue(int value) {
this.value = value;
shouldSetValue = true;
}
/**
* A property to be set with the value of the counter
*/
public void setProperty(String property) {
this.property = property;
shouldSetProperty = true;
}
/**
* again, properties are mutable in this tsk
*/
public void execute() throws BuildException {
if ((counter == null) || counter.length() == 0) {
throw new BuildException("No counter specified to retrieve");
}
if (shouldSetValue && shouldSetProperty) {
throw new BuildException("Cannot both set the value of the property and retrieve the value of the property.");
}
String command = "counter " + P4CmdOpts + " " + counter;
if (!shouldSetProperty) {
// NOTE kirk@radik.com 04-April-2001 -- If you put in the -s, you
// have to start running through regular expressions here. Much easier
// to just not include the scripting information than to try to add it
// and strip it later.
command = "-s " + command;
}
if (shouldSetValue) {
command += " " + value;
}
if (shouldSetProperty) {
final Project myProj = project;
P4Handler handler = new P4HandlerAdapter() {
public void process(String line) {
log("P4Counter retrieved line \"" + line + "\"", Project.MSG_VERBOSE);
try {
value = Integer.parseInt(line);
myProj.setProperty(property, "" + value);
} catch (NumberFormatException nfe) {
throw new BuildException("Perforce error. Could not retrieve counter value.");
}
}
};
execP4Command(command, handler);
} else {
execP4Command(command, new SimpleP4OutputHandler(this));
}
}
}
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