Sorry,
Incomplete original example methinks.

If you change
- <assign var="time" value="now"/>

to
+ <assign var="time" op="-now" fromvar="time"/>

it should work.

--- [ A WORKING EXAMPLE TO DEMONSTRATE (TESTED ;-))] ----

Here's a working sample (assuming AntX is installed in a
directory at ./antx relative to test script):

<project name="test" default="timed-target" basedir=".">
  <property name="jware.antx.defaults.valueuris.flag" value="yes"/>
  <path id="antx.classpath">
    <pathelement location="${basedir}/antx/JWare_apis.jar"/>
    <pathelement location="${basedir}/antx/AntX_tasks.jar"/>
  </path>

  <taskdef resource="com/idaremedia/antx/install/antlib.xml"
     classpathref="antx.classpath"/>
  <typedef resource="com/idaremedia/antx/valueuri/antlib.xml"
    classpathref="antx.classpath"/>

  <target name="timed-target">
    <assign var="time" op="now"/>
    <echo message="started @ ${$var:time} ms"/>
    <sleep seconds="2"/>
    <assign var="time" op="-now" fromvar="time"/>
    <echo message="duration was ${$var:time} ms"/>
    <copyproperty name="duration" variable="time"
        transform="duration"/>
    <echo message="Duration transformed is ${duration}"/>
  </target>
</project>


OUTPUT:
timed-target:
     [echo] started @ 1185500881950 ms
     [echo] duration was 2003 ms
     [echo] Duration transformed is 2sec.3ms


dkhanna01 wrote:
first of all thanks for the information
I tried to load antx libraries and it did worked, BUT while calculating the
duration its giving me an error as :

Unable to convert 'now' to time duration.
compile took -now

Here is my code:

<target name="usage" description="Displays a list of valid targets">
        <assign var="time" value="now"/>
        <copyproperty name="usage.start" variable="time"
transform="datetime"/>
        <echo level="info" message="usage started ${usage.start}"/>

        <antcall target="usage:default"/>

        <assign var="time" value="now"/>
        <copyproperty name="compile.duration" variable="time"
transform="duration"/>

        <echo level="info" message="compile took ${compile.duration}"/>
    </target>

Is there any thing I have missed.

THanks again




Wascally Wabbit wrote:
Hi,

The assign task is already defined for you as part of the
AntXtras antlib. The easiest thing to do is to load the
entire antlib and experiment. *See the Quick Start and
User Guide for additional information*.

Example (assuming at least Ant 1.6.5, and AntXtras bin download
to some local directory '${antextensions.d}/antx'):

[Top-Level]

   <path id="antx.classpath">
     <fileset dir="${antextensions.d}/antx">
       <include name="lib/*.jar"/>
     </fileset>
   </path>

   <taskdef resource="com/idaremedia/antx/install/antlib.xml"
      classpathref="antx.classpath"/>


[In any target or macrodef]
    <assign var="duration" value="now"/>
    ...
    <assign var="duration" value="-now" .../>
    ...

-The Wabbit


dkhanna01 wrote:
Hi I downloaded the antxtras unility from the site but the two jar files in
that does not contain class file for assign task. SO when I try to run my
script after adding assing task it gave an error that " Problem: failed
to
create task or type assign"

THanks


Wascally Wabbit wrote:
dkhanna01 wrote:
I need to find out the time taken by each of the process/target in our
build.xml file. Now for doing this I have use ANT tstamp task to
calculate
the start time and end time of the process. Now my question is how do I
find
out the total time taken by the process, I mean is there any way to
calculate difference between "End time" and "Start time"
Thanks
If you can use thirdparty libraries you can use the AntXtra's
<assign> task like so:

<target name="compile" depends="-init" description="Compile stuff">
   <assign var="time" value="now"/>
   ...[all your compiling tasks here]
   <assign var="time" value="-now" transform="duration"
      copyproperty="compile.duration"/>
   <echo level="info" message="compile took ${compile.duration}"/>
</target>

If you want to do this for lots of your targets you can leverage
macrodefs to do this for every target using something like:

<macrodef name="timedtarget">
   <attribute name="name">
   <attribute name="functions"/>
   <sequential>
     <assign var="time_" value="now"/>
     <callinline targets="@{functions}"/> <!--do NOT switch projects-->
     <assign var="time_" value="-now" transform="duration"
        copyproperty="@{name}.duration"/>
     <echo level="info" message="@{name} took [EMAIL PROTECTED]"/>
   </sequential>
</macrodef>

Then use it like so:

<target name="-compile">
    ...[all your compiling work here in private target]
</target>

<target name="compile" depends="-init" description="Compile stuff">
   <timetarget name="compile" functions="-compile"/>
</target>

AntXtras is at: http://antxtras.sf.net/

Hope that helps.

-The Wabbit

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