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From Jan.Mate...@rzf.fin-nrw.de
Subject RE: Help creating a MatchingTask
Date Wed, 21 Jan 2004 09:47:53 GMT
Maybe the second tutorial (not finished yet) would help you.
Tutorial on [1] and sources on [2]. Especially the part about filesets [3].

Jan

[1]
http://cvs.apache.org/viewcvs.cgi/*checkout*/ant/docs/manual/tutorial-tasks-
filesets-properties.html?content-type=text%2Fplain
[2]
http://cvs.apache.org/viewcvs.cgi/ant/docs/manual/tutorial-tasks-filesets-pr
operties.zip?only_with_tag=HEAD
[3]
http://cvs.apache.org/viewcvs.cgi/*checkout*/ant/docs/manual/tutorial-tasks-
filesets-properties.html?content-type=text%2Fplain#filesets

> -----Original Message-----
> From: Mark McKay [mailto:mark@kitfox.com]
> Sent: Wednesday, January 21, 2004 10:43 AM
> To: Ant Developers List
> Subject: Re: Help creating a MatchingTask
> 
> 
> Conor MacNeill wrote:
> 
> >Mark,
> >
> >Peter and Jan look to have figured out your compile issue. I 
> would recommend, 
> >however, that you reconsider using MatchingTask. It was the 
> way early Ant 
> >tasks were implements but it is not ideal. A better approach 
> would be to use 
> >an addFileset(FileSet fs) method and process that fileset 
> (or multiple 
> >filesets) in your execute method.
> >
> >Your task then has an explicit fileset
> >
> ><task>
> >  <fileset .../>
> ></task>
> >
> >It's a cleaner approach overall.
> >
> >Conor
> >  
> >
> 
> Thanks for all the help offered so far.  I've modified my code and 
> getting better results, but am still error prone. 
> 
> I can build my ant task now; however, when I try to use it I get:
> 
>     build.xml [18] The <fileset> data type doesn't support the nested 
> "includes" element.
>     BUILD FAILED
> 
> I'm assuming this means that 'fileset' is seen as an ordinary nested 
> element, and not the special FileSet facility provided by Ant.
> 
> I've included my task and code.  Any further help would be great!
> 
> Mark McKay
> 
> =====================
> 
> 
> 
>     <target name="use" description="Use the Task" depends="jar">
>         <taskdef name="walkTree"
>                  classname="com.kitfox.anttask.MyAntTask"
>                  classpath="${ant.project.name}.jar"/>
>         <walkTree>
>             <fileset>
>                 <includes name="**/*.class"/>>
>             </fileset>
>         </walkTree>
>     </target>
> 
> 
> public class MyAntTask extends MatchingTask {
>    
>     FileSet sourceFiles;
>    
>     /** Creates a new instance of MyAntTask */
>     public MyAntTask() {
>     }
> 
>     public void addFileset(FileSet fs)
>     {
>         sourceFiles = fs;
>     }
> 
>     public void execute() throws BuildException
>     {
>         log("Walking tree");
>    
>         DirectoryScanner scanner = 
> sourceFiles.getDirectoryScanner(getProject());
>        
>         scanner.scan();
>        
>         String[] files = scanner.getIncludedFiles();
>         for (int i = 0; i < files.length; i++) {
>             //System.out.println(files[i]);
>             log(files[i]);
>         }
>    
>     }
>    
> }
> 
> 
> 
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