[
https://issues.apache.org/jira/browse/SYNAPSE-905?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andreas Veithen resolved SYNAPSE-905.
-------------------------------------
Resolution: Fixed
Assignee: Andreas Veithen
Implemented solution (2).
> Namespace mismatch in samples that use SimpleStockQuoteService
> --------------------------------------------------------------
>
> Key: SYNAPSE-905
> URL: https://issues.apache.org/jira/browse/SYNAPSE-905
> Project: Synapse
> Issue Type: Bug
> Components: Documentation
> Reporter: Andreas Veithen
> Assignee: Andreas Veithen
> Priority: Minor
>
> According to the WSDL generated by Axis2, SimpleStockQuoteService uses two
> namespaces (i.e. wsdl:types contains two xs:schema elements):
> http://services.samples and http://services.samples/xsd. Responses from
> SimpleStockQuoteService use these two namespaces as expected. Unfortunately
> SimpleStockQuoteService is a POJO service and for this type of services,
> Axis2 doesn't check the namespaces used in request messages.
> There are multiple samples that send messages to SimpleStockQuoteService that
> don't conform to the WSDL. E.g. sample 158 sends the following SOAP request:
> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/";>
> <soapenv:Body>
> <ns0:getQuote xmlns:ns0="http://services.samples";>
> <ns1:request xmlns:ns1="http://services.samples";>
> <ns2:symbol xmlns:ns2="http://services.samples";>IBM</ns2:symbol>
> </ns1:request>
> </ns0:getQuote>
> </soapenv:Body>
> </soapenv:Envelope>
> This message doesn't conform to the WSDL of SimpleStockQuoteService because
> the "symbol" element is expected to be in the http://services.samples/xsd
> namespace, not in http://services.samples.
> Even the code of the test client (see the StockQuoteHandler class) uses the
> wrong namespaces, as shown in the following piece of code:
> /**
> * Create a new quote request with a body as follows
> * <m:GetQuote xmlns:m="http://services.samples";>
> * <m:request>
> * <m:symbol>IBM</m:symbol>
> * </m:request>
> * </m:GetQuote>
> * @param symbol the stock symbol
> * @return OMElement for SOAP body
> */
> public static OMElement createStandardQuoteRequest(String symbol, int
> itrCount) {
> OMFactory factory = OMAbstractFactory.getOMFactory();
> OMNamespace ns =
> factory.createOMNamespace("http://services.samples";, "m0");
> OMElement getQuote = factory.createOMElement("getQuote", ns);
> for (int i =0; i<itrCount; i++) {
> OMElement request = factory.createOMElement("request", ns);
> OMElement symb = factory.createOMElement("symbol", ns);
> request.addChild(symb);
> getQuote.addChild(request);
> symb.setText(symbol);
> }
> return getQuote;
> }
> Sample 15 is also interesting:
> <in>
> <enrich>
> <source type="custom"
> xpath="//m0:getQuote/m0:request/m0:symbol/text()"
> xmlns:m0="http://services.samples"/>
> ...
> </enrich>
> ...
> </in>
> <out>
> ...
> <enrich>
> <source type="custom"
>
> xpath="//ns:getQuoteResponse/ns:return/ax21:lastTradeTimestamp"
> xmlns:ns="http://services.samples";
> xmlns:ax21="http://services.samples/xsd"/>
> ...
> </enrich>
> …
> </out>
> One can see that the sample uses incorrect namespaces to extract data from
> the request message (because the test client uses the wrong namespace for the
> "symbol" element), but uses the correct ones to extract data from the
> response message (because the response is produced by Axis2 and conforms to
> the WSDL).
> Although these namespace mismatches don't trigger any errors when executing
> the samples (because as noted above, Axis2 doesn't check namespaces for POJO
> services), we still need to fix them:
> * Obviously, distributing samples that use messages not conforming to the
> WSDL of the target service doesn't give a good impression to end users.
> * There is a permanent risk that correcting the namespaces at one place will
> breaks things in other places.
> The root cause of the issue seems to be that between Axis2 1.4 and 1.5, the
> default conventions for namespaces used by POJO services have changed. In
> fact, in Synapse 1.2, the WSDL for SimpleStockQuoteService still used a
> single namespace (although that was http://services.samples/xsd and not
> http://services.samples).
> There are two solutions for this issue:
> (1) Leave the SimpleStockQuoteService as is and change the samples. Since
> most of the samples were originally written for the old conventions, this
> will require significant work. In addition, it will not be easy to identify
> the samples that need to be fixed.
> (2) Change the configuration of SimpleStockQuoteService so that it uses a
> single namespace again by adding the following to the services.xml file:
> <schema>
> <mapping package="samples.services"
> namespace="http://services.samples"/>
> </schema>
> This makes it significantly easier to fix the samples (it is easier to go
> from two namespaces to one namespace than the other way round). It will also
> be easy to identify the samples that need to be fixed, simply by looking for
> occurrences of http://services.samples/xsd.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
