This is a known problem with beanshell 2.0b1.
You need to just call the script once in a top-level
target (! i.e. do not place the script task at the top-level!)
and then use the antcall's.
<scripttypedef/> solves this problem by checking if the
scripttypedef has been defined before.
Peter
Jose Alberto Fernandez wrote:
Peter,
I found a problem with your solution. My build uses <antcall/> which
mens
the script will be executed several times.
But you can only run the script once per build process.
Otherwise, beanshell fails with:
[script] java.lang.reflect.InvocationTargetException:
java.lang.LinkageError: trying to redefine class NameSelector (bad class
loader?)
[script] at java.lang.ClassLoader.defineClass0(Native Method)
[script] at
java.lang.ClassLoader.defineClass(ClassLoader.java:703)
[script] at
java.lang.ClassLoader.defineClass(ClassLoader.java:627)
[script] at java.lang.reflect.Method.invoke(Native Method)
[script] at bsh.Reflect.invokeOnMethod(Unknown Source)
[script] at bsh.Reflect.invokeObjectMethod(Unknown Source)
[script] at bsh.BshClassManager.defineClass(Unknown Source)
[script] at bsh.ClassGeneratorImpl.generateClassImpl(Unknown
Source)
[script] at bsh.ClassGeneratorImpl.generateClass(Unknown Source)
[script] at bsh.BSHClassDeclaration.eval(Unknown Source)
[script] at bsh.Interpreter.eval(Unknown Source)
[script] at bsh.Interpreter.eval(Unknown Source)
[script] at bsh.Interpreter.eval(Unknown Source)
[script] at bsh.util.BeanShellBSFEngine.eval(Unknown Source)
[script] at bsh.util.BeanShellBSFEngine.exec(Unknown Source)
[script] at org.apache.bsf.BSFManager$6.run(Unknown Source)
[script] at java.security.AccessController.doPrivileged(Native
Method)
[script] at org.apache.bsf.BSFManager.exec(Unknown Source)
[script] at
org.apache.tools.ant.util.ScriptRunner.executeScript(ScriptRunner.java:1
30)
[script] at
org.apache.tools.ant.taskdefs.optional.Script.execute(Script.java:61)
[script] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java(Compiled
Code))
[script] at org.apache.tools.ant.Task.perform(Task.java(Compiled
Code))
[script] at
org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:65)
[script] at org.apache.tools.ant.Task.perform(Task.java(Compiled
Code))
[script] at net.sf.antcontrib.logic.TryCatchTask.execute(Unknown
Source)
[script] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java(Compiled
Code))
[script] at org.apache.tools.ant.Task.perform(Task.java(Compiled
Code))
[script] at
org.apache.tools.ant.Target.execute(Target.java(Compiled Code))
[script] at
org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:135
)
[script] at
org.apache.tools.ant.ProjectHelper.configureProject(ProjectHelper.java:8
9)
[script] at
org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:345)
[script] at
org.apache.tools.ant.taskdefs.CallTarget.execute(CallTarget.java:107)
[script] at org.apache.tools.ant.Task.perform(Task.java(Compiled
Code))
[script] at
org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:65)
[script] at
net.sf.antcontrib.logic.ForEach.executeSequential(Unknown Source)
[script] at net.sf.antcontrib.logic.ForEach.execute(Unknown
Source)
[script] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java(Compiled
Code))
[script] at org.apache.tools.ant.Task.perform(Task.java(Compiled
Code))
[script] at
org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:65)
[script] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java(Compiled
Code))
[script] at org.apache.tools.ant.Task.perform(Task.java(Compiled
Code))
[script] at
org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:3
40)
[script] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java(Compiled
Code))
[script] at org.apache.tools.ant.Task.perform(Task.java(Compiled
Code))
[script] at
org.apache.tools.ant.taskdefs.Sequential.execute(Sequential.java:65)
[script] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java(Compiled
Code))
[script] at org.apache.tools.ant.Task.perform(Task.java(Compiled
Code))
[script] at
org.apache.tools.ant.taskdefs.MacroInstance.execute(MacroInstance.java:3
40)
[script] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java(Compiled
Code))
[script] at org.apache.tools.ant.Task.perform(Task.java(Compiled
Code))
[script] at
org.apache.tools.ant.Target.execute(Target.java(Compiled Code))
[script] at
org.apache.tools.ant.Target.performTasks(Target.java:328)
[script] at
org.apache.tools.ant.Project.executeTarget(Project.java:1215)
[script] at
org.apache.tools.ant.Project.executeTargets(Project.java:1063)
[script] at org.apache.tools.ant.Main.runBuild(Main.java:632)
[script] at org.apache.tools.ant.Main.startAnt(Main.java:183)
[script] at
org.apache.tools.ant.launch.Launcher.run(Launcher.java:197)
[script] at
org.apache.tools.ant.launch.Launcher.main(Launcher.java:56)
I think for this to work generically, we need a way to create a
disposable classloader that beanshell can use and discard if necessary.
I will try to
solve my problem by defining different classes each time.
Jose Alberto
-----Original Message-----
From: Peter Reilly [mailto:[EMAIL PROTECTED]
Sent: 12 March 2004 13:27
To: Ant Developers List
Subject: Re: Poor support for selectors
Ok,
an example!
you can do:
<project xmlns:ac="antlib:net.sf.antcontrib">
<script language="beanshell">
import java.io.File;
import org.apache.tools.ant.types.selectors.FileSelector;
public class NameSelector implements FileSelector {
private String match;
public void setMatch(String match) {
this.match = match;
}
public boolean isSelected(File basedir, String
filename, File file) {
return new File(filename).name.matches(match);
}
}
project.addDataTypeDefinition("selectname", NameSelector.class);
</script>
<ac:for param="file">
<ac:path>
<ac:fileset dir=".">
<selectname match="^.*reg.*$"/>
</ac:fileset>
</ac:path>
<ac:sequential>
<echo>file is @{file}</echo>
</ac:sequential>
</ac:for>
</project>
It would be a little easier using the proposed scripttypedef,
but <script> works fine as well. Peter
Peter Reilly wrote:
If you use beanshell 2.0x (which you do!), you can use
a normal script task to create a selector.
Peter
Jose Alberto Fernandez wrote:
I need to construct a fileset using rules a little bit out of the
ordinary and I an having a very hard time trying to do it in ANT.
What I need is to be able to match filenames using egexp rules for
the filename. The only regexp things we have for selectors
looks at
the content of the file,
and the only things to select of filenames, use ANT's filename
expressions.
We do not provide either a scriptselector (like we provide a script
filter)
neither.
Shall we try to close some of this gaps in 1.6.x? Or shall we wait
for 1.7 and the new role based code.
I think one thing we should do in 1.7 is take a look at
the all the
core
features: filters, mappers, selectors, conditions, etc.
And make sure we
provide simillar strength across the board (by prviding
scriptXXX for
all) at a minimum.
Comments?
Jose Alberto
---------------------------------------------------------------------
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
