Hi,
Thanks Brain, for the reply .. I have some doubts, request you to make me
understand some features... A similar post is already posted by my team member
couple of times ..excuses for resending it. Very thankful to them who help us
in understanding the concepts in a good way ...
1) So for reading every appender , we need to set the appender into a variable
as in the solution.
<param name="appender1" path="appender[1]/text()" />
> <param name="appender2" path="appender[2]/text()" />
>
>
There is no way to get into a single variable ,If I'm wrong here ..please help
me understand..
2 ) For replacing the value in a param value in appender node -
<appender class="org.apache.log4j.RollingFileAppender" name="a2">
<param name="File" value="uan.log"/>
<param name="Append" value="true"/>
<param name="MaxFileSize" value="25000KB"/>
<param name="MaxBackupIndex" value="5"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{DATE} %-5p %-15c{1}
[%t][%x]: %m%n"/>
</layout>
</appender>
In my build-configuration file - it is like this now -
----------------------------
<appenderupdates>
<appendername>a2</appendername>
<paramname>MaxFileSize</paramname>
<paramvalue>10000KB</paramvalue >
</appenderupdates>
------------------------------------
In my ant build file the following xml task is used for reading the values from
build -configuration
<call path="/categoryset/appenderupdates" target="replacetask">
<param name="appendername" path="appendername/text()"/>
<param name="paramname" path="paramname/text()"/>
<param name="paramvalue" path="paramvalue/text()"/>
</call>
Replace task is -
<replace
path="/log4j:configuration/append...@name='${testname}']/par...@name='${paramname}']...@value"
withText="${paramvalue}"/>
The problem with the replace is , it is unable to find the correct match -
: <xmltask> subtasks failed to find matches was the error.
I understand that xpath usage is wrong here .. how can i parse this ?
The above question is solved using the attr xmltask -
<attr
path="/log4j:configuration/append...@name='${appendername}']/par...@name='${paramname}']"
attr="value" value='${paramvalue}'/>
3) And when i run my ant build.xml repeatedly then it creates the same set of
appenders and categories again and again , is there a way that we can stop the
same appenders and categories writing again and again into myweb.xml file.
4) Can we call xml task inside another call xml task . I tried this feature for
a scenario but it failed....
regards,
soumya ..
________________________________
From: Brian Agnew <br...@oopsconsultancy.com>
To: soumya sree kullu <soumyasree...@yahoo.co.in>
Cc: xmltask-users@lists.sourceforge.net
Sent: Tuesday, 11 August, 2009 3:29:16 PM
Subject: Re: XML Task Help
1) why not use something like:
<call path="/categoryset/category/appender/" target="..."/>
to process every appender ? You may have to do this separately from
setting the name.
2) Your <replace> doesn't work. Can you post how you're using it
(the one-liner <replace>), pls ?
Brian
On 11/08/2009 14:03, soumya sree kullu wrote:
Hi ,
>
>
>I am using xml task for dynamically adding log4j appenders and
>categories in my web.xml ,
>
>
>My solution goes like this -
>
>
> my web.xml is
>----------------------------
>
>
><?xml version="1.0" encoding="UTF-8"?>
><root>
> <priority value="fatal"/>
> </root>
> </log4j:configuration>
>-------------------------------------------
>
>
>I want to add the appenders and categories to the above xml
>file. hence I used xml task in my ant build.xml file ,
>by reading the appenders and category names through a
>configuration file like this -
>
>
>Build-configuration file
>-----------------------------------
><?xml version="1.0"?>
><categoryset>
><category >
>
> <testname>Category1</testname>
>
> <appender>A1</appender>
>
> <appender>B1</appender>
>
> <appender>C1</appender>
></category>
><category >
>
> <testname>Category2</testname>
>
> <appender>a2</appender>
>
> <appender>b2</appender>
>
> <appender>c2</appender>
></category>
><appenderfilesize>
> <testname>a2</testname>
><MaxFileSize>10000KB</MaxFileSize >
></appenderfilesize>
></categoryset>
>-------------------------------------
>
>In the ant build.xml file I
>use xml task to
>add appenders and categories that adds to my web.xml ,
> like this-
>
>In the ant build.xml file
>--------------------------------
><target name="main"
>depends="testprg"/>
>
><property
>name="web.xmlfile"
>value="C:/test/web.xml" />
>
><target name="testprg">
> <xmltask
>source="build-configuration.xml">
> <call
>path="/categoryset/category" target="roottest">
> <param name="name"
>path="testname/text()" />
> <param name="appender1"
>path="appender[1]/text()" />
> <param name="appender2"
>path="appender[2]/text()" />
> <param name="appender3"
>path="appender[3]/text()" />
> </call>
>
><call
>path="/categoryset/catego...@testname]/appender"
>target="compile-and-release">
><param
>name="build"
>path="text()"/>
></call>
>
>
> </xmltask>
></target>
>
>
> <target name="roottest" >
> <echo>Building Category
>${name}</echo>
> <echo>Appender
>${appender1}</echo>
>
> <echo>Appender ${appender2}</echo>
> <echo>Appender
>${appender3}</echo>
>
>
> <xmltask source="${web.xmlfile}"
>dest="${web.xmlfile}" failWithoutMatch="true">
> <insert
>path="/log4j:configuration/root"
>position="after">
> <![CDATA[ <category
>name="${name}">
> <priority
>value="debug"
>/>
> <appender-ref
>ref="${appender1}"
>/>
> <appender-ref
>ref="${appender2}"
>/>
> <appender-ref
>ref="${appender3}"
>/>
> </category>
>]]>
>
> </insert>
>
> </xmltask>
>
> </target>
>
><target
>name="compile-and-release">
> <xmltask
>source="${web.xmlfile}"
>dest="${web.xmlfile}"
>failWithoutMatch="true">
> <insert
>path="/log4j:configuration/root"
>position="after">
>
> <![CDATA[
>
> <appender name="${build}"
>class="org.apache.log4j.RollingFileAppender">
>
> <param
>name="File" value="uan.log"
>/>
>
> <param
>name="Append" value="true" />
>
> <param
>name="MaxFileSize" value="25000KB" />
>
> <param
>name="MaxBackupIndex" value="5"/>
>
> <layout
>class="org.apache.log4j.PatternLayout">
>
> <param
>name="ConversionPattern" value="%d{DATE} %-5p %-15c{1} [%t][%x]:
>%m%n"/>
>
> </layout>
>
> </appender>
>
>]]>
> </insert>
></xmltask>
>-----------------------------------------------------
>
>
>The above solution works fine until i know the number of
> appenders, but -
>
>
>I dont want to mention the array notation of appenders in xml
>task , ie.
>
><call
>path="/categoryset/category" target="roottest">
> <param name="name"
>path="testname/text()" />
> <param name="appender1"
>path="appender[1]/text()" />
> <param name="appender2"
>path="appender[2]/text()" />
> <param name="appender3"
>path="appender[3]/text()" />
>
></call>
>
>
>
>
> as the appenders are not static , they may increase or
>decrease under a category. I want to implement some looping kind of
>mechanism which actually reads the category and then loop through the
>appenders which creates nodes under category like - and should get the
>same output into web.xml like what the solution does now...i.e.
>
>
><category
>name="Category2">
> <priority
>value="debug"/>
>
> <appender-ref ref="a2"/>
>
> <appender-ref ref="b2"/>
>
> <appender-ref ref="c2"/>
></category>
>
>
>Is there a way ?
>
>
>2 ) I facing some problems in replacign the value in the xml
>node..
>
>
>Using build-configuration file . I read the max-file size but it
>doesnt work
>------------------------------------
><appenderfilesize>
> <testname>a2</testname>
><MaxFileSize>10000KB</MaxFileSize >
></appenderfilesize>
>--------------------------
>
>
><appender class="org.apache.log4j.RollingFileAppender"
>name="a2">
> <param name="File" value="uan.log"/>
> <param name="Append" value="true"/>
> <param name="MaxFileSize" value="25000KB"/>
> <param name="MaxBackupIndex" value="5"/>
> <layout class="org.apache.log4j.PatternLayout">
> <param name="ConversionPattern" value="%d{DATE} %-5p
>%-15c{1} [%t][%x]: %m%n"/>
> </layout>
> </appender>
>
>
>The value has to be changed to 10000KB , i was using replace
>xmltask but didnt succeed..
>
>
>can anyone please help me out in solving the issues ... ??will
>be so thankful to them ..
>
>
>soumya
>
>
>________________________________
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--
Brian Agnew http://www.oopsconsultancy.com
OOPS Consultancy Ltd
Tel: +44 (0)7720 397526
Fax: +44 (0)20 8682 0012
________________________________
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