using if with resourcecontains in and is not returning true value - ant

Question

I'm reading a file that contains a list of files path.
For each file, I would like to know if it contains a substring.
the answer is always false, although part of it should be true.
Here is my target:
<target name="chek-file">
<loadfile property="file" srcfile="c:\tmp\testing.txt"/>
<for param="line" list="${file}" delimiter="${line.separator}">
<sequential>
<echo>#{line}</echo>
<loadfile property="inner_file" srcfile="#{line}"/>
<if>
<resourcecontains resource="${inner_file}" substring="parent" />
<then>
<echo message="this is a jpa jar"/>
</then>
<else>
<echo message="this is NOT a jpa jar"/>
</else>
</if>
</sequential>
</for>
</target>
the echo is typing "this is NOT a jpa jar" for all jars.
Is 'if' not working with 'resourcecontains'?

Answer 1

OK, found two problems:
1) The second load file is actually not needed here because resourcecontains needs to get the file name and not its value.
2) resourcecontains is inherited from <condition>
so the solution should be:
<target name="chek-file">
<loadfile property="file" srcfile="c:\tmp\testing.txt"/>
<for param="line" list="${file}" delimiter="${line.separator}">
<sequential>
<echo>#{line}</echo>
<condition property="substring_found">
<resourcecontains resource="#{line}" substring="JPA>true" />
</condition>
<echo message="substring_found value: ${substring_found}"/>
<if>
<equals arg1="${substring_found}" arg2="true" />
<then>
<echo message="this is a jpa jar"/>
<get_jar_name_no_version property.to.process="#{line}" output.property="linetobeadd" />
</then>
<else>
<echo message="this is NOT a jpa jar"/>
</else>
</if>
<var name="substring_found" unset="true"/>
</sequential>
</for>
</target>