Feisal
This is exactly the same issue as described in http://issues.apache.org/jira/browse/SYNAPSE-205
. This happens when Synapse is unable to connect to the target service.
Andreas
On 28 Dec 2007, at 15:52, ali_khan wrote:
The Synapse proxy is unable to pass request to the Amazon service.
below is my synapse_sample.xml code
<definitions xmlns="http://ws.apache.org/ns/synapse";>
<proxy name="AmazonProxy">
<target>
<endpoint>
<address
uri="http://soap.amazon.com/onca/soap?Service=AWSECommerceService"/>
</endpoint>
<outSequence>
<send/>
</outSequence>
</target>
<publishWSDL
uri="file:repository/conf/sample/resources/proxy/
AWSECommerceService.wsdl"/>
</proxy>
<send/>
</definitions>
and the client code segment which calls it is as below:
String trpUrl = "http://localhost:8080/AmazonProxy";;
String addUrl =
"http://soap.amazon.com/onca/soap?Service=AWSECommerceService";;
Options options = new Options();
options.setTo(new EndpointReference(addUrl));
options.setProperty(Constants.Configuration.TRANSPORT_URL, trpUrl);
OMElement result = serviceClient.sendReceive(payload);
where the payload is the following xml:
<m:ItemLookup
xmlns:m="http://webservices.amazon.com/AWSECommerceService/
2005-03-23">
<m:Request><m:ContentType>text/html</m:ContentType><m:IdType>ASIN</
m:IdType><m:ItemId>0706922611</
m:ItemId><m:SubscriptionId>0525E2PQ81DD7ZTWTK82</m:SubscriptionId></
m:Request></m:ItemLookup>
On running the client code i get the following exception in the
Synapse
console:
SequenceMediator End : Sequence <main>
Exception in thread "HttpCoreNIOSender" java.lang.NullPointerException
at
org.apache.synapse.transport.nhttp.HttpCoreNIOSender$3.handleError(Ht
tpCoreNIOSender.java:460)
at
org.apache.synapse.transport.nhttp.HttpCoreNIOSender$3.timeout(HttpCo
reNIOSender.java:439)
at
org.apache.http.impl.nio.reactor.SessionRequestImpl.timeout(SessionRe
questImpl.java:151)
at
org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processTi
meouts(DefaultConnectingIOReactor.java:149)
at
org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEv
ents(DefaultConnectingIOReactor.java:93)
at
org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute
(AbstractMultiworkerIOReactor.java:157)
at
org.apache.synapse.transport.nhttp.HttpCoreNIOSender.executeClientEng
ine(HttpCoreNIOSender.java:139)
at
org.apache.synapse.transport.nhttp.HttpCoreNIOSender.access$000(HttpC
oreNIOSender.java:68)
at
org.apache.synapse.transport.nhttp.HttpCoreNIOSender$1.run(HttpCoreNI
OSender.java:101)
at java.lang.Thread.run(Thread.java:595)
Also I am sitting behind network proxy. Please suggest if this is
the root
of the problem. Where will I have to specify the network proxy
settings to
get rid of this problem.
Please guide me so that Synapse proxy is able to pass request to the
Amazon
service.
Thanks,
Faisal
--
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