Get Text from Envelope - wso2

Question

I want to get text from following Envelope so that I can use it as REST_URL_POSTFIX.
I am sending a plain text message to a JMS queue and following WSO2-ESB proxy service is used as a receiver/listener of JMS queue. I have tried following expressions but they does not work :
$body
$body/text
$body/text()
The SOAP 1.1 or 1.2 body element. For example, the expression
$body/getQuote refers to the first getQuote element in a SOAP body,
regardless of whether the message is SOAP-11 or SOAP-12.
and
//Envelope//Body//text
//Envelope//Body//text()
INFO - (Send
LogMediator To: , MessageID: ID:sunnydyal-K55VM-44230-1439804805911-3:2:1:1:9,
Direction: request, ##### Message = ,
Envelope:
<?xml version="1.0" encoding="utf-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Body>
<axis2ns8:text xmlns:axis2ns8="http://ws.apache.org/commons/ns/payload">Test</axis2ns8:text>
</soapenv:Body>
</soapenv:Envelope>
#Proxy Service:
<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="JmsToRestProxy"
transports="jms"
statistics="enable"
trace="enable"
startOnLoad="true">
<target>
<inSequence>
<property name="OUT_ONLY" value="true"/>
<property name="HTTP_METHOD" value="GET" scope="axis2" type="STRING"/>
<property name="SOAPAction" scope="default" action="remove"/>
<header name="Action" scope="default" action="remove"/>
<property name="REST_URL_POSTFIX"
expression="//Envelope//Body//text"
scope="axis2"
type="STRING"/>
<switch source="$axis2:HTTP_METHOD">
<case regex="GET">
<property name="HTTP_METHOD" value="GET" scope="axis2" type="STRING"/>
</case>
<case regex="POST">
<property name="HTTP_METHOD" value="POST" scope="axis2" type="STRING"/>
</case>
<default/>
</switch>
<log level="full">
<property name="##### Message" expression="$body/text"/>
</log>
<send>
<endpoint>
<address uri="http://localhost:8080/Rest/rest" format="rest"/>
</endpoint>
</send>
</inSequence>
</target>
<parameter name="transport.jms.ContentType">
<rules>
<jmsProperty>contentType</jmsProperty>
<default>text/plain</default>
</rules>
</parameter>
<description/>
</proxy>

Answer 1

text node belong to a specific namespace "http://ws.apache.org/commons/ns/payload" :
<log level="full">
<property xmlns:syn="http://ws.apache.org/commons/ns/payload" name="##### Message" expression="$body/syn:text/text()"/>
</log>

Answer 2

You can get the body using the $body variable[1]. /text() is trying to access the text element of the body which doesn't exist.
<log level="custom">
<property name="Body" expression="$body" />
</log>
[1] - https://docs.wso2.com/display/ESB481/Synapse+XPath+Variables#SynapseXPathVariables-$body