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https://issues.apache.org/jira/browse/SYNAPSE-365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12614594#action_12614594
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keitha commented on SYNAPSE-365:
--------------------------------
If I may add a comment on this issue has I have a very simple test case that
does not work and is easy to reproduce.
The background to this is I wish to proxy and transform some xml that is
accessed in normal RESTful manner (GET). However the actual server is not
available to me all the time for development, so I thought to use some static
xml pages in place of the actual server.
The environment I am working in is XP Pro - everything is on the local machine.
In place of the actual server application I deployed an xml file to IIS 5.1.
This can easily be viewed in a web browser at the address
http://localhost/fdc-xml/test.xml
Here is the response headers for my GET request from firebug:
Response Headers
Server Microsoft-IIS/5.1
X-Powered-By ASP.NET
Date Fri, 18 Jul 2008 00:35:40 GMT
Content-Type text/xml
Accept-Ranges bytes
Last-Modified Thu, 17 Jul 2008 11:25:17 GMT
Etag "25f6dcaffe7c81:f6b"
Content-Length 173
And here is the actual response (again from firebug. I use a very simple
example here):
<docroot>
<parent>parent 1
<child>child 1</child>
<child>child 2</child>
</parent>
<parent>parent 2
<child>child 3</child>
</parent>
</docroot>
So, if I am correct although it is a trivial example of a static xml file, this
is also a perfectly valid RESTful web service.
Now I set up a proxy in Synapse:
<?xml version="1.0" encoding="UTF-8"?>
<syn:definitions xmlns:syn="http://ws.apache.org/ns/synapse";>
<syn:registry provider="org.wso2.esb.registry.WSO2Registry"/>
<syn:proxy name="xmltest" startOnLoad="true" statistics="enable"
trace="enable">
<syn:target>
<syn:endpoint>
<syn:address uri="http://localhost/fdc-xml/test.xml";
format="get"/>
</syn:endpoint>
<syn:outSequence>
<syn:send/>
</syn:outSequence>
</syn:target>
</syn:proxy>
<syn:sequence name="fault"/>
<syn:sequence name="main"/>
</syn:definitions>
I then try and access the proxied service from the following address:
http://localhost:8280/soap/xmltest/mediate (I hope this bit is correct, could
not find good documentation).
I have run this test for both 1.7 and ESB-NIGHTLY-82 and neither works,
although the results are different:
In the 1.7 release the error is an http 500 in the browser. In the log:
ERROR [18 Jul 2008 00:38:56] ServerWorker - Error processing GET request
for: /soap/xmltest/mediate
In ESB-NIGHTLY-82 there is an http 404 in the browser. In the log:
WARN [18 Jul 2008 00:46:20] ClientHandler - Unexpected HTTP status code
received : 404 :: Object Not Found
WARN [18 Jul 2008 00:46:20] ClientHandler - Received an unexpected response
- of content type : text/html and status code : 404 with reason : Object Not
Found
WARN [18 Jul 2008 00:46:20] ClientWorker - Unexpected response received :
com.ctc.wstx.exc.WstxUnexpectedCharException: Unexpected character '"' (code
34) in DOCTYPE declaration; expected a space between public and system
identifiers at [row,col {unknown-source}]: [1,55]
For the nightly build here is the response header from firebug:
Content-Type application/xml; charset=UTF-8
Date Fri, 18 Jul 2008 00:53:27 GMT
Server Synapse-HttpComponents-NIO
Transfer-Encoding chunked
Connection keep-alive
And here is the response:
<Exception>Unexpected response received :
com.ctc.wstx.exc.WstxUnexpectedCharException: Unexpected character '"' (code
34) in DOCTYPE declaration; expected a space between public and system
identifiers
 at [row,col {unknown-source}]: [1,55]</Exception>
I hope this is clear enough that you can reproduce (or, if my mistake in
configuration or access please let me know).
Thanks, Keith
> REST support not working in synapse 1.2
> ---------------------------------------
>
> Key: SYNAPSE-365
> URL: https://issues.apache.org/jira/browse/SYNAPSE-365
> Project: Synapse
> Issue Type: Bug
> Components: Endpoints, Proxy Services, Transports
> Reporter: Jasper Spoel
> Assignee: Asankha C. Perera
> Fix For: NIGHTLY
>
>
> When submitting a GET request to a synapse proxy service that points to a
> REST webservice
> AND Content-Type is not text/xml or application/xml the error: "Cannot create
> DocumentElement without destination EPR" comes out. (e.g try to approach the
> service proxy with a webbrowers and it will do this)
> configuration is as follows:
> <definitions xmlns="http://ws.apache.org/ns/synapse";>
> <proxy name="Forwarder">
> <target>
> <endpoint>
> <address uri="http://localhost:11111/MyService/echo";
> format="get"/>
> </endpoint>
> <outSequence>
> <send/>
> </outSequence>
> </target>
> </proxy>
> </definitions>
> If the message is send with the 'correct' content-type like for example so:
> curl -G -H "Content-Type: text/xml" http://localhost:8280/Forwarder/mediate
> Synapse gives me the following output:
> 2008-06-18 15:10:59,714 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG ServerHandler HTTP connection [/0:0:0:0:0:0:0:1%0:56697]: Connected
> 2008-06-18 15:10:59,732 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG ServerHandler HTTP connection [/0:0:0:0:0:0:0:1%0:56697]: GET
> /soap/Forwarder/mediate HTTP/1.1
> 2008-06-18 15:10:59,780 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG headers >> GET /soap/Forwarder/mediate HTTP/1.1
> 2008-06-18 15:10:59,780 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG headers >> User-Agent: curl/7.16.3 (powerpc-apple-darwin9.0)
> libcurl/7.16.3 OpenSSL/0.9.7l zlib/1.2.3
> 2008-06-18 15:10:59,780 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG headers >> Host: localhost:8280
> 2008-06-18 15:10:59,780 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG headers >> Accept: */*
> 2008-06-18 15:10:59,780 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG headers >> Content-Type:application/xml
> 2008-06-18 15:10:59,797 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG TransportUtils createSOAPEnvelope using Builder (class
> org.apache.axis2.builder.ApplicationXMLBuilder) selected from type
> (application/xml)
> 2008-06-18 15:10:59,841 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SynapseMessageReceiver Synapse received a new message for message
> mediation...
> 2008-06-18 15:10:59,841 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SynapseMessageReceiver Received To: null
> 2008-06-18 15:10:59,841 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SynapseMessageReceiver SOAPAction: null
> 2008-06-18 15:10:59,843 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SynapseMessageReceiver WSA-Action: null
> 2008-06-18 15:10:59,845 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG Axis2SynapseEnvironment Injecting MessageContext
> 2008-06-18 15:10:59,845 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG Axis2SynapseEnvironment Using Main Sequence for injected message
> 2008-06-18 15:10:59,845 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SequenceMediator Start : Sequence <main>
> 2008-06-18 15:10:59,845 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SequenceMediator Sequence <SequenceMediator> :: mediate()
> 2008-06-18 15:10:59,846 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG LogMediator Start : Log mediator
> 2008-06-18 15:10:59,846 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> INFO LogMediator To: , MessageID: urn:uuid:27AA6F4DF24676A7641213794659778,
> Direction: request
> 2008-06-18 15:10:59,846 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG LogMediator End : Log mediator
> 2008-06-18 15:10:59,846 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG DropMediator Start : Drop mediator
> 2008-06-18 15:10:59,852 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG DropMediator End : Drop mediator
> 2008-06-18 15:10:59,852 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG SequenceMediator End : Sequence <main>
> 2008-06-18 15:10:59,853 [10.0.0.12-equilibrium.local] [HttpServerWorker-1]
> DEBUG ServerWorker Sending 202 Accepted response for MessageID :
> urn:uuid:27AA6F4DF24676A7641213794659778 response written : null response
> will follow : true acked : false forced ack : false
> 2008-06-18 15:10:59,862 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG ServerHandler HTTP connection [localhost/0:0:0:0:0:0:0:1%0:56697]:
> Output ready
> 2008-06-18 15:10:59,863 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG ServerHandler HTTP connection [localhost/0:0:0:0:0:0:0:1%0:56697]:
> Content encoder [chunk-coded; completed: true]
> 2008-06-18 15:10:59,864 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG ServerHandler HTTP connection [localhost/0:0:0:0:0:0:0:1%0:56697]:
> Response ready
> 2008-06-18 15:10:59,865 [10.0.0.12-equilibrium.local] [I/O dispatcher 5]
> DEBUG ServerHandler HTTP connection [closed]: Closed
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