wso2 - How We Can Break a String in Wso2esb using Xpath -

i wish break string in wso2esb using xpath input

<property name="message" value="assetname:ups,assetcode:452chi,assetid:548935,assetvalue:215" scope="default"/> 

i need break in same property using xpath need this

assetname:ups assetcode=452chi assetid=54895 assetvalue=215 

for tried tokenize function wso2esb showing errors configure file

<proxy xmlns="http://ws.apache.org/ns/synapse" name="xpathcheck" transports="https,http" statistics="disable" trace="disable" startonload="true">    <target>       <insequence>          <property name="max" value="1" scope="default" type="string"/>          <property name="min" value="1" scope="default" type="string"/>          <property name="messagetext" expression="fn:concat('assetid:',get-property('min'),',','assetname:',get-property('max'))" scope="default" type="string"/>          <property name="tokenize" expression="fn:tokenize(get-property('messagetext'),',')" scope="default" type="string"/>          <log>             <property name="messagetext" expression="get-property('messagetext')"/>             <property name="tokenize" expression="get-property('tokenize')"/>          </log>                </insequence>       <outsequence/>    </target>    <description></description> </proxy> 

but throwing errors u have idea need store in db table 1 field separate lines error is

error - synapsexpath evaluation of xpath expression fn:tokenize(get-property('messagetext'),',') resulted in error org.jaxen.unresolvableexception: no such function tokenize 

tokenize function comes xpath 2.0. enable xpath 2.0 functions uncomment following entry in synapse.properties file located @ $esb_home/repository/conf directory

synapse.xpath.dom.failover.enabled=true 

then have specify mediator follows,

<property name="message" value="a,b,c,d,e" scope="default"/>          <property xmlns:fn="http://www.w3.org/2005/xpath-functions" name="tokenize" expression="fn:tokenize(syn:get-property('message'),',')" scope="default" type="string"/>