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Posted to user@ant.apache.org by "M. Z." <co...@yahoo.com> on 2005/08/05 05:28:01 UTC
How to call imported ant target/task in Java
Hi there,
Can anybody advice me how to call an ant target/task, which is "<import/>"ed from another build file, from within Java code?
Here's my Java code (I got the sample from this mailing list, thanks):
---------------------------------------------
import org.apache.tools.ant.*;
import java.io.*;
import java.util.*;
public class MyTest
{
private Project project;
public void init(String _buildFile, String _baseDir) throws
Exception
{
project = new Project();
try { project.init(); }
catch (BuildException e)
{ throw new Exception("The default task list could not be loaded."
); }
// Set the base directory. If none is given, "." is used.
if (_baseDir == null) _baseDir=new String(".");
try { project.setBasedir(_baseDir); }
catch (BuildException e)
{ throw new Exception("The given basedir doesn't exist, or isn't a directory."); }
if (_buildFile == null) _buildFile=new String("a.xml");
try { ProjectHelper.getProjectHelper().parse(project, new File(_buildFile)); }
catch (BuildException e)
{ throw new Exception("Configuration file "+_buildFile+" is invalid, or cannot be read."); }
}
public void runTarget(String _target) throws Exception
{
// Test if the project exists
if (project == null) throw new Exception("No target can be launched because the project has not been initialized. Please call the 'init' method first !");
// If no target is specified, run the default one.
if (_target == null) _target = project.getDefaultTarget();
// Run the target
try { project.executeTarget(_target); }
catch (Exception e)
{ throw new Exception(e.getMessage()); }
}
public static void main(String args[])
{
try{
MyTest mytest=new MyTest();
mytest.init("c.xml",".");
mytest.runTarget(null);
}catch(Exception e)
{
e.printStackTrace();
}
}
}
---------------------------------------------
Here's my build files:
1.c.xml:
<project basedir="." default="runtests" name="TestC">
<import file="a.xml"/>
</project>
2. a.xml:
<project basedir="." default="runtests" name="TestA">
<target name="runtests" depends="">
<mkdir dir="ttt"/>
</target>
</project>
--------------------------------------
If I directly set build file "a.xml" in MyTest.java, everthing works well. However, if I set "c.xml" then do task "<mkdir dir="ttt"/>" defined in "a.xml" which was imported by "c.xml", when running, I got an exception. Looks like it can't parse my c.xml which include "import". BTW, I'm using ant 1.6.2, and running "ant -f c.xml" was ok.
Did I miss any classpath or something? Any idea?
Thanks,
Amy
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