-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Wednesday, June 11, 2008 12:22 PM To: [email protected] Subject: how to check that a property exist /* I've a properties file like that: ... defaultPollerManagedServer=A TestEvent.pollerManagedServer=B DummyEvent.pollerManagedServer=C ... I run my build.xml providing a parameter: ant -DIPEvent=TestEvent And I would like to set the value of a property named 'pollerEventValue' according to these rules: 1) if exists a property like <property name="pollerEvent" value="${IPEvent}.pollerManagedServer"/> then the requested value is: <property name="pollerEventValue" value="${${pollerEvent}}"/> ?????? but I think the syntax is wrong 2) else take as value <property name="pollerEventValue" value="${defaultPollerManagedServer}"/> So if I run: ant -DIPEvent=TestEvent the expected value is B ant -DIPEvent=other the expected value is A (the default one) Could anyone help me to solve that ? */ that's a tricky one, i once had a similar problem and discovered, that it works with the <var> task of antcontrib, so the solution in your case would be = ant -DIPEvent=TestEvent -f yourbuild.xml ... and <!-- // Taskdefs --> <!-- Import AntContrib --> <taskdef resource="net/sf/antcontrib/antlib.xml" /> <!-- Taskdefs // --> <!-- // Properties --> <property name="defaultPollerManagedServer" value="A"/> <property name="TestEvent.pollerManagedServer" value="B"/> <property name="DummyEvent.pollerManagedServer" value="C"/> <!-- Properties // --> <target name="depends"> <if> <isset property="${IPEvent}.pollerManagedServer"/> <then> <var name="pollerEventValue" value="$${${IPEvent}.pollerManagedServer}"/> </then> <else> <property name="pollerEventValue" value="${defaultPollerManagedServer}"/> </else> </if> </target> <target name="main" depends="depends"> <echo>$${pollerEventValue} == ${pollerEventValue}</echo> </target> </project> you need antcontrib = http://sourceforge.net/project/showfiles.php?group_id=36177 Regards, Gilbert --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
