Java Tutorial/Ant/Existance Check

Check existance of source code

   <source lang="java">

<?xml version="1.0"?> <project name="Apache Ant Properties Project" basedir=".">

 <property name="jstl.src" value="jstl"/>

 
 <condition property="jstl.src.exists">
   <available file="${jstl.src}" filepath="./src"/>
 </condition>

 <target name="checkout-jstl" unless="jstl.src.exists">
   <echo message="Checking out ${jstl.jar}"/>
 </target>

</project></source>

Check jar file existance

   <source lang="java">

<?xml version="1.0"?> <project name="Apache Ant Properties Project" basedir=".">

 <property name="jstl.jar" value="jstl.jar"/> 
 
 <condition property="jstl.jar.exists">
   <available file="${jstl.jar}" filepath="./lib"/>
 </condition>
 <target name="build-jstl" depends="checkout-jstl" unless="jstl.jar.exists">
   <echo message="Building ${jstl.jar}"/>
 </target>

</project></source>