Hi Gilbert,
thanks a lot for your hint but I would like to find a way without using
antcontrib...
After some tries here what I've found but I've two issues:
i) a property defined in a target is not visible in another. How could I set,
let's say, a 'global property' ?
ii) a way to get 'your' $${${IPEvent}.pollerManagedServer} as value in a
property
My tries ....
<target name="test">
<antcall target="retrievePollerValue"/>
<echo>pollerValue : ${pollerValue}</echo>
<target name="retrievePollerValue"
depends="pollerEventIsSet-if,pollerEventIsSet-else"/>
<target name="check-pollerEventIsSet">
<condition property="pollerEventIsSet">
<isset property="${IPEvent}.pollerManagedServer"/>
</condition>
</target>
<target name="pollerEventIsSet-if" depends="check-pollerEventIsSet"
if="pollerEventIsSet">
<property name="pollerValue" value="$${${IPEvent}.pollerManagedServer}"/>
<echo>pollerEventIsSet, pollerValue: ${pollerValue}</echo>
</target>
<target name="pollerEventIsSet-else" depends="check-pollerEventIsSet"
unless="pollerEventIsSet">
<property name="pollerValue" value="${defaultPollerManagedServer}"/>
<echo>pollerEventIsNotSet, pollerValue: ${pollerValue}</echo>
</target>
where
<property name="defaultPollerManagedServer" value="A"/>
<property name="TestEvent.pollerManagedServer" value="B"/>
<property name="DummyEvent.pollerManagedServer" value="C"/>
that works more or less ...
I see
1) with a not defined <something>.pollerManagedServer property:
1.a) OK: pollerEventIsSet-else is called and 'locally' the value is correct
check-pollerEventIsSet:
pollerEventIsSet-if:
pollerEventIsSet-else:
[echo] pollerEventIsNotSet, pollerValue: bnk01alm01
1.b) but at 'test' target level the value is not visible
test:
[echo] pollerValue : ${pollerValue}
2. with a defined <something>.pollerManagedServer property:
2.a) pollerEventIsSet-if is called
check-pollerEventIsSet:
pollerEventIsSet-if:
[echo] pollerEventIsSet, pollerValue: ${DummyEvent.pollerManagedServer}
pollerEventIsSet-else:
but as you can see it seems that the
<property name="pollerValue" value="$${${IPEvent}.pollerManagedServer}"/>
is not the propery way to set the value !!!!
So, as you can see your 'if' is achieved in a different way but I'm not able to
solve my i) & ii) issues.
Do you have any idea ?
Regards
Patrizio
-----Original Message-----
From: Rebhan, Gilbert [mailto:[EMAIL PROTECTED]
Sent: mercoledì, 11. giugno 2008 13:45
To: Ant Users List
Subject: RE: how to check that a property exist
-----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
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