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Date: Tue, 12 Aug 2003 15:28:00 -0700 (PDT)
From: Robert Rice <robert@windermere.com>
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To: Dominique Devienne <DDevienne@lgc.com>
cc: 'Ant Users List' <user@ant.apache.org>
Subject: RE: Custom Selectors missing Project and logging?
In-Reply-To: <D44A54C298394F4E967EC8538B1E00F10248C63B@lgchexch002.lgc.com>
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Thanks for the clear example.  That worked perfectly.  My params are now 
coming into the custom selector.

Robert Rice

On Tue, 12 Aug 2003, Dominique Devienne wrote:

> I used the protected parameters myself. Here's an example. You probably need
> to override verifySettings() and call explicitly validate() in your
> isSelected() method, as demonstrated below. --DD
> 
> PS: Note that Ant CVS HEAD configures selectors using the same introspection
> rules as for types and tasks, and thus supercedes the Parameter-based stuff.
> 
> public class TestTypeAndConfigSelector
>              extends BaseExtendSelector {
> 
>   /**
>    * Converters the recorded parameters into setter calls.
>    * <p>
>    * This selector can be configured either explicitly in code using the
>    * non-default constructor, and by calling explicitly {@link #setType}
>    * or {@link #setConfig}, or by the Ant selector mechanism using
>    * parameters, and thus requires to keep track whether is was configured
>    * or not.
>    */
>   public void verifySettings() {
>     if (_configured) {
>       return;
>     }
>     if (parameters == null) {
>         setError("Nested 'type' and/or 'config' params required!");
>         return;
>     }
>     for (int i = 0; i < parameters.length; ++i) {
>       Parameter param = parameters[i];
>       String name = param.getName().toLowerCase().intern();
>       String value = param.getValue();
>       if (name == "type") {
>         setType(value);
>       }
>       else if (name == "config") {
>         setConfig(value);
>       }
>       else if (name == "typefield") {
>         setTypeField(value);
>       }
>       else if (name == "configfield") {
>         setConfigField(value);
>       }
>       else {
>         setError("Invalid param name: " + name);
>         return;
>       }
>     }
>     _configured = true;
>   }
> 
>   // Implements FileSelector#isSelected
>   //       thru BaseExtendSelector#isSelected
>   public boolean isSelected(File basedir, String filename, File file)
>                  throws BuildException {
>     validate(); // calls verifySettings...
>     ...
>     return true;
>   }
> 
> } // END class TestTypeAndConfigSelector
> 
> 
> > -----Original Message-----
> > From: Robert Rice [mailto:robert@windermere.com]
> > Sent: Tuesday, August 12, 2003 4:29 PM
> > To: Ant Users List
> > Subject: RE: Custom Selectors missing Project and logging?
> > 
> > Any chance this also goes for the list of parameters?  getParameters( )
> > seems to return null, though I am setting two parameters on the custom
> > selector using the <param> nested element.
> > 
> > Robert Rice
> > 
> > On Tue, 12 Aug 2003, Dominique Devienne wrote:
> > 
> > > I think I spoke too soon...
> > >
> > > You can get back the current Task, thru Project#getThreadTask, but you
> > need
> > > a Project instance to do that. I'm not sure the current project is ever
> > > registered... Sorry, --DD
> > >
> > > > -----Original Message-----
> > > > From: Robert Rice [mailto:robert@windermere.com]
> > > > Sent: Tuesday, August 12, 2003 2:54 PM
> > > > To: Dominique Devienne
> > > > Subject: RE: Custom Selectors missing Project and logging?
> > > >
> > > > Thanks for the help.  I was guessing that it might be a bug.  Just
> > seemed
> > > > too strange since Project is usually readily available.
> > > >
> > > > If you find the reference to getting the current project, I would sure
> > be
> > > > interested.  I had previously poked around thinking I might be able to
> > > > find it but no luck.  I will follow your suggestions and see what I
> > can
> > > > find.
> > > >
> > > > Thanks again,
> > > > Robert Rice
> > >
> > > > -----Original Message-----
> > > > From: Dominique Devienne [mailto:DDevienne@lgc.com]
> > > > Sent: Tuesday, August 12, 2003 2:19 PM
> > > > To: 'Ant Users List'
> > > > Subject: RE: Custom Selectors missing Project and logging?
> > > >
> > > > I think there was a bug (now fixed in CVS) where setProject() was not
> > > > called for custom selectors in 1.5.x.
> > > >
> > > > As a turn around, somebody posted a few months back a trick getting
> > back
> > > > the
> > > > current project for the current thread either thru the context loaded,
> > or
> > > > a
> > > > thread local (I think it was the former). I cannot find the reference
> > > > though... --DD
> > > >
> > > > > -----Original Message-----
> > > > > From: Robert Rice [mailto:robert@windermere.com]
> > > > > Sent: Tuesday, August 12, 2003 2:32 PM
> > > > > To: user@ant.apache.org
> > > > > Subject: Custom Selectors missing Project and logging?
> > > > >
> > > > > I'm writing a simple custom selector that extends
> > > > > BaseExtendSelector.  Thus far, I have only implemented the one
> > required
> > > > > method: public boolean isSelected( File basedir, String filename,
> > File
> > > > > file );
> > > > > My custom selector is declared using the <custom ...> tag nested
> > within
> > > > a
> > > > > <fileset>.
> > > > >
> > > > > I am trying to log messages from this custom selector.  It does not
> > log.
> > > > > As I look closer, I find that the project reference ( getProject( )
> > ) is
> > > > > null, which may explain why no logging takes place.
> > > > >
> > > > > Is there something I need to do within my selector implementation,
> > or in
> > > > > the way that I reference it in my build file, to cause the project
> > to
> > > > get
> > > > > set on the selector?
> > > > >
> > > > > Robert Rice
> > > >
> > > > ---------------------------------------------------------------------
> > > > To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
> > > > For additional commands, e-mail: user-help@ant.apache.org
> > >
> > > ---------------------------------------------------------------------
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> > >
> > 
> > 
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