Hi,
Recently with [1]CXF-3146, I make an improvement to let gzip encoding
works over jms transport, but it's only applicable with cxf 2.2
branch, as the jms transport with cxf 2.2 is a kind of proprietary
implementation.
Since cxf 2.3, cxf implements the soap over jms spec[2] which ensure
interoperability between the implementations of different Web services
vendors. With this spec, seems there's noway we can enable gzip
encoding over jms. I previously thought the main barrier is there's no
Content-Encoding/Accept-Encoding "JMS Message Properties" defined in
the specs, but "JMS Message Properties" in the spec isn't exclusive so
that seems we could have extend it to make at least both cxf client/
server over jms understand gzip encoding. But finally I realize that
the below part in the spec is the real reason we can't use gzip
encoding.
2.4 The JMS Message Body
The contents of the JMS Message body MUST be the SOAP payload as a JMS
BytesMessage or TextMessage. † [Definition: A fault MUST be generated
with subcode unsupportedJMSMessageFormat when the arriving message
format is not BytesMessage or TextMessage. † ]
The bytes or characters of the JMS Message payload correspond to the
MIME format as indicated by the definition of the contentType
property. In this way, the SOAP node determines the proper formatting
of the SOAP payload irrespective of the underlying JMS message type,
and specifies an appropriate value for the contentType property which
describes it to the receiving SOAP node. Specifically, if the payload
is formatted as a MIME multipart message, then the first byte or
character encountered in the JMS Message body MUST be the start of the
MIME boundary for the start of the first part — what MIME Part One
[IETF RFC 2045] section 2.5 calls a "Body Part". † If the message is
formatted as "text/xml" or "application/soap+xml", then the first byte
or character of the JMS Message body MUST be the start of a conforming
XML document. †
Is my understanding correct? Or is there any way we can implement the
gzip encoding without breaking the spec?
Any comment is welcome.
[1]https://issues.apache.org/jira/browse/CXF-3146
[2]http://www.w3.org/TR/soapjms/
Thanks
Freeman
--
Freeman Fang
------------------------
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