Return-Path: 
 <user-return-62240-apmail-ant-user-archive=ant.apache.org@ant.apache.org>
Delivered-To: apmail-ant-user-archive@www.apache.org
Received: (qmail 99192 invoked from network); 18 Sep 2007 08:24:57 -0000
Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2)
  by minotaur.apache.org with SMTP; 18 Sep 2007 08:24:57 -0000
Received: (qmail 17259 invoked by uid 500); 18 Sep 2007 08:24:45 -0000
Delivered-To: apmail-ant-user-archive@ant.apache.org
Received: (qmail 17220 invoked by uid 500); 18 Sep 2007 08:24:45 -0000
Mailing-List: contact user-help@ant.apache.org; run by ezmlm
Precedence: bulk
List-Unsubscribe: <mailto:user-unsubscribe@ant.apache.org>
List-Help: <mailto:user-help@ant.apache.org>
List-Post: <mailto:user@ant.apache.org>
List-Id: "Ant Users List" <user.ant.apache.org>
Reply-To: "Ant Users List" <user@ant.apache.org>
Delivered-To: mailing list user@ant.apache.org
Received: (qmail 17209 invoked by uid 99); 18 Sep 2007 08:24:45 -0000
Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230)
    by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 18 Sep 2007 01:24:45 -0700
X-ASF-Spam-Status: No, hits=-0.0 required=10.0
	tests=SPF_PASS
X-Spam-Check-By: apache.org
Received-SPF: pass (nike.apache.org: local policy)
Received: from [193.109.238.66] (HELO dnsinet.rzf-nrw.de) (193.109.238.66)
    by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 18 Sep 2007 08:26:37 +0000
Received: from z011100.bk.fin.local (z011100.bk.fin.local [172.18.101.140])
	by dnsinet.rzf-nrw.de (8.14.0/8.14.0) with ESMTP id l8I8OJTs002228
	for <user@ant.apache.org>; Tue, 18 Sep 2007 10:24:21 +0200
Received: from z011034.bk.fin.local ([130.11.7.34]) by z011100.bk.fin.local
 with Microsoft SMTPSVC(6.0.3790.0);
	 Tue, 18 Sep 2007 10:24:20 +0200
X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0
Content-class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: text/plain;
	charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Subject: AW: Query definition of target?
Date: Tue, 18 Sep 2007 10:24:20 +0200
Message-ID: <EF39D77A486C234B9D9933091CE6D21E020F8454@z011034.bk.fin.local>
X-MS-Has-Attach: 
X-MS-TNEF-Correlator: 
Thread-Topic: Query definition of target?
Thread-Index: Acf5ppFKR0EASxMRRrq6EYlN7LP5CQAGFNCgAAOHl8A=
From: <Jan.Materne@rzf.fin-nrw.de>
To: <user@ant.apache.org>
X-OriginalArrivalTime: 18 Sep 2007 08:24:20.0770 (UTC)
 FILETIME=[4FEA1020:01C7F9CD]
X-Virus-Checked: Checked by ClamAV on apache.org

Here the <targetIsOverwritten/> condition and a buildfile compiling and
testing the two conditions.
Test testAAndMainIsOverwritten is failing and therefore the algorithm
not fully right ...=20



import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.ProjectComponent;
import org.apache.tools.ant.taskdefs.condition.Condition;

import java.util.List;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;

// inherited getProject(), getLocation() + log()
public class IsTargetOverwrittenCondition extends ProjectComponent
implements Condition {
    // target to check
    String target;
    public void setTarget(String t) {
        target =3D t;
    }
   =20
    // specific buildfile which should be overwritten?
    String file;
    public void setFile(String f) {
        file =3D f;
    }

    public boolean eval() throws BuildException {
        if (target =3D=3D null) {
            throw new BuildException("Must specify 'target' to test.",
getLocation());
        }
        if (!projectHasTarget(target)) {
            // The target is not present, therefore it is also not
overwritten.
            return false;
        } else {
            // imported targets are in BOTH namespace:  <target> +
<buildfile>.<target>
            List importedTargets =3D findTargetsByName(target);
            if (importedTargets.isEmpty()) {
                // only in the main buildfile, means 'not overwritten'
                return false;
            } else {
                if (file =3D=3D null) {
                    return checkTargetIdentity(target, importedTargets);
                } else {
                    if (filterListByPrefix(importedTargets,
file).isEmpty()) {
                        return false;
                    } else {
                        return true;
                    }
                }
            }
        }
    }
   =20
    private boolean projectHasTarget(String name) {
        return getProject().getTargets().containsKey(target);
    }
    private List findTargetsByName(String name) {
        ArrayList rv =3D new ArrayList();
        for (Enumeration en =3D getProject().getTargets().keys();
en.hasMoreElements(); ) {
            String tName =3D (String)en.nextElement();
            if (tName.endsWith("." + name)) {
                rv.add(tName);
            }
        }
        return rv;
    }
   =20
    private List filterListByPrefix(List list, String prefix) {
        ArrayList rv =3D new ArrayList();
        for (Iterator it=3Dlist.iterator(); it.hasNext();) {
            String name =3D (String)it.next();
            if (name.startsWith(prefix)) {
                rv.add(name);
            }
        }
        return rv;
    }
   =20
    private boolean checkTargetIdentity(String target, List
otherTargetNames) {
        Object original =3D getProject().getTargets().get(target);
        for (Iterator it=3DotherTargetNames.iterator(); it.hasNext();) {
            Object next =3D it.next();
            if (original.equals(next)) return true;
        }
        return false;
    }
}





<project xmlns:au=3D"antlib:org.apache.ant.antunit" default=3D"suite">
    <import file=3D"a.xml"/>
    <import file=3D"b.xml"/>
   =20
    <target name=3D"onlyMain"/>
    <target name=3D"AandMain"/>
    <target name=3D"BandMain"/>
    <target name=3D"all"/>
   =20
   =20
   =20
    <target name=3D"prepare">
        <javac srcdir=3D"." destdir=3D"."/>
        <typedef name=3D"hastarget" classname=3D"HasTargetCondition"
classpath=3D"."/>
        <typedef name=3D"targetIsOverwritten"
classname=3D"IsTargetOverwrittenCondition" classpath=3D"."/>
    </target>

    <target name=3D"suite" depends=3D"prepare">
        <au:antunit>
            <fileset file=3D"${ant.file}"/>
            <au:plainlistener/>
        </au:antunit>
    </target>



    <target name=3D"testOnlyAExists">
        <au:assertTrue>
            <hastarget target=3D"onlyA"/>
        </au:assertTrue>
    </target>
    <target name=3D"testXxxDoesNotExist">
        <au:assertFalse>
            <hastarget target=3D"xxx"/>
        </au:assertFalse>
    </target>
    <target name=3D"testHasTargetFailsWithoutTarget">
        <au:expectfailure expectedMessage=3D"Must specify 'target' to
test.">
            <condition property=3D"p">
                <hastarget/>
            </condition>
        </au:expectfailure>
    </target>

    <target name=3D"testTargetIsOverwrittenFailsWithoutTarget">
        <au:expectfailure expectedMessage=3D"Must specify 'target' to
test.">
            <condition property=3D"p">
                <targetIsOverwritten/>
            </condition>
        </au:expectfailure>
    </target>
    <target name=3D"testOnlyAIsNotOverwritten">
        <au:assertFalse>
            <targetIsOverwritten target=3D"onlyA"/>
        </au:assertFalse>
    </target>
    <target name=3D"testOnlyMainIsNotOverwritten">
        <au:assertFalse>
            <targetIsOverwritten target=3D"onlyMain"/>
        </au:assertFalse>
    </target>
    <target name=3D"testAAndMainIsOverwritten">
        <au:assertTrue>
            <targetIsOverwritten target=3D"AandMain"/>
        </au:assertTrue>
    </target>
    <target name=3D"testAAndMainIsOverwrittenFromA">
        <au:assertTrue>
            <targetIsOverwritten target=3D"AandMain" file=3D"a"/>
        </au:assertTrue>
    </target>
    <target name=3D"testAAndMainIsNotOverwrittenFromB">
        <au:assertFalse>
            <targetIsOverwritten target=3D"AandMain" file=3D"b"/>
        </au:assertFalse>
    </target>


</project>


<project name=3D"a">
    <target name=3D"onlyA"/>
    <target name=3D"AandMain"/>
    <target name=3D"AandB"/>
    <target name=3D"all"/>
</project>


<project name=3D"b">
    <target name=3D"onlyB"/>
    <target name=3D"BandMain"/>
    <target name=3D"AandB"/>
    <target name=3D"all"/>
</project>




Jan
















>A quick implementation of <hastarget> would be:
>
>
>
>
>
>import org.apache.tools.ant.BuildException;
>import org.apache.tools.ant.Project;
>import org.apache.tools.ant.taskdefs.condition.Condition;
>
>public class HasTargetCondition implements Condition {
>
>    // dynamically set by Ant runtime
>    Project project;
>    public void setProject(Project p) {
>        project =3D p;
>    }
>    public Project getProject() {
>        return project;
>    }
>   =20
>    // target to check
>    String target;
>    public void setTarget(String t) {
>        target =3D t;
>    }
>   =20
>    //implements Condition
>    public boolean eval() throws BuildException {
>        if (target =3D=3D null) {
>            throw new BuildException("Must specify 'target' to test.");
>        }
>        return getProject().getTargets().containsKey(target);
>    }
>}
>
>
>
>    <typedef name=3D"hastarget" classname=3D"HasTargetCondition"=20
>classpath=3D"."/>
>    <condition property=3D"x.onlyA.exists">
>        <hastarget target=3D"onlyA"/>
>    </condition>

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@ant.apache.org
For additional commands, e-mail: user-help@ant.apache.org