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From "Uma Maheswar" <>
Subject return Substring from java file
Date Mon, 17 Apr 2006 13:13:38 GMT


I wanted to do "substring" and get the resultant string in the build.xml
file. This is my java code


public class AntHelper extends Task {

    private String message;

    public void execute() throws BuildException {
        message = message.substring(message.lastIndexOf(File.separator)+1,
        System.out.println("In Java::"+message);

    public void setMessage(String message) {
        this.message = message;

    public String getMessage(){
        return message;

    public void addText(String message) {
        this.message = message;

    public String createMessage() {
        return message;

And this is my build.xml file

    <target name="build" depends="compile" description="compile and generate
the war file" >

    	<taskdef name="mytask" classname="AntHelper" classpath="${antFiles}"/>
    	<mytask message1="${basedir}"/>

The reason I am doing this is in my project I am having different modules
and each module will have a common build.xml file. I wanted to generate
the "base directory" name as the "WAR file name".

I get the value printed in the console, but I need the value in the
build.xml file so that I can set the war file name dynamically

       <jar jarfile="${refLocation}/xx.war" basedir="${build.dir}"/>

Any clues please?


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