ALSB / OSB Java callout to gunzip

Question

We have an input file which is in a gz format, which we need to gunzip before passing onto our business service.
We're writing a simple Java callout component to do this - taking an input stream and returning an output stream.
What variable should I pass into my input stream from the callout in the proxy service message flow?
I've tried $body and $input, but neither of these work.
Thanks in advance
Phil Riley

Answer 1

Have tried logging to output, and this is what I get:
$attachments[0]/ctx:attachment/ctx:body - empty
$body
<soapenv:Body xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<con:binary-content ref="cid:2a96c6b3:12da3c4b844:-7f3c" xmlns:con="http://www.bea.com/wli/sb/context"/>
</soapenv:Body>
$inbound
<con:endpoint name="ProxyService$FredhopperExtract$ProxyServices$Test GZip" xmlns:con="http://www.bea.com/wli/sb/context">
<con:service/>
<con:transport>
<con:uri>file:////apps/bea/dp_tmp</con:uri>
<con:mode>request</con:mode>
<con:qualityOfService>best-effort</con:qualityOfService>
<con:request xsi:type="file:FileRequestMetaData" xmlns:file="http://www.bea.com/wli/sb/transports/file" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<tran:headers xsi:type="file:FileRequestHeaders" xmlns:tran="http://www.bea.com/wli/sb/transports">
<file:fileName>/apps/bea/dp_tmp/test.txt.gz</file:fileName>
</tran:headers>
<tran:encoding xmlns:tran="http://www.bea.com/wli/sb/transports">utf-8</tran:encoding>
<file:isFilePath>false</file:isFilePath>
</con:request>
</con:transport>
<con:security>
<con:transportClient>
<con:username>&lt;anonymous></con:username>
</con:transportClient>
</con:security>
</con:endpoint>
None of these actually have the contents of the message - the $body is the closest which tells me that it is binary and has a ref.