I am trying to use Apache Camel's AHC component for sending a request to
multiple URLs at the same time and gather the responses.
To do this on my local machine I have done two things:
1) Created a unit test to test the camel routes configured in my spring
context file SendXMLReceiveXMLTest-context.xml.
2) Created a servlet ReceiveXMLSendXMLServlet.java and deployed it on my
local Apache Tomcat 6.0.32 server.
This servlet does the following:
a) Receive an XML
b) The XML is unmarshalled into a POJO(VehiclesList.java) using JAXB
c) The POJO data is inspected and a new POJO(VehiclesAvailability.java) is
created containing the result data.
d) The POJO VehiclesAvailability.java is then marshalled back to XML and
this XML is sent via response.
When I execute the unit test using I encounter a difference, as can be seen
below, between the output emitted by test
method testSendXMLReceiveXML() and testAsyncHttpRequestsToMultipleURLs().
==============================mvn install ouput
.........
.........
################# testSendXMLReceiveXML ##############
--------------OUTPUT STARTS----------------------
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
Toyota
Camry
1615.7
--------------OUTPUT ENDS----------------------
09-Sep-2011 16:59:46 308
################# testAsyncHttpRequestsToMultipleURLs : LocalHost
##############
--------------OUTPUT STARTS----------------------
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
--------------OUTPUT ENDS----------------------
09-Sep-2011 16:59:46 394
################# testAsyncHttpRequestsToMultipleURLs : Google
##############
Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.615
sec
Running com.poc.apache.camel.message_processing.AppTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.009
sec
.........
.........
Stack Trace for reference:
Some exception occured while unmarshalling
javax.xml.bind.UnmarshalException
- with linked exception:
[java.io.IOException: Invalid CRLF]
at
com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:203)
at
com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal(UnmarshallerImpl.java:173)
at
javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:137)
at
javax.xml.bind.helpers.AbstractUnmarshallerImpl.unmarshal(AbstractUnmarshallerImpl.java:184)
at
com.poc.xml.ReceiveXMLSendXMLServlet.getAvailableVehiclesFromVehiclesRequest(ReceiveXMLSendXMLServlet.java:62)
at
com.poc.xml.ReceiveXMLSendXMLServlet.doGet(ReceiveXMLSendXMLServlet.java:38)
at
com.poc.xml.ReceiveXMLSendXMLServlet.doPost(ReceiveXMLSendXMLServlet.java:31)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.io.IOException: Invalid CRLF
at
org.apache.coyote.http11.filters.ChunkedInputFilter.parseCRLF(ChunkedInputFilter.java:362)
at
org.apache.coyote.http11.filters.ChunkedInputFilter.doRead(ChunkedInputFilter.java:186)
at
org.apache.coyote.http11.InternalInputBuffer.doRead(InternalInputBuffer.java:710)
at org.apache.coyote.Request.doRead(Request.java:428)
at
org.apache.catalina.connector.InputBuffer.realReadBytes(InputBuffer.java:304)
at
org.apache.tomcat.util.buf.ByteChunk.substract(ByteChunk.java:370)
at
org.apache.catalina.connector.InputBuffer.readByte(InputBuffer.java:317)
at
org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:105)
at
com.sun.org.apache.xerces.internal.impl.XMLEntityManager$RewindableInputStream.read(XMLEntityManager.java:2932)
at
com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:704)
at
com.sun.org.apache.xerces.internal.impl.XMLVersionDetector.determineDocVersion(XMLVersionDetector.java:186)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:772)
at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
at
com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
at
com.sun.xml.internal.bind.v2.runtime.unmarshaller.UnmarshallerImpl.unmarshal0(UnmarshallerImpl.java:200)
... 20 more
On inspecting the logs on the server in case of test method
/testAsyncHttpRequestsToMultipleURLs()/ the servlet is unable to unmarshal
the XML from request input stream and shows the error:
*Caused by: java.io.IOException: Invalid CRLF*
I am unable to resolve this.Can anybody please help me on why this is
happening only in case of test method
/testAsyncHttpRequestsToMultipleURLs()/ and the feature works perfectly in
case of test method /testSendXMLReceiveXML()/.
http://camel.465427.n5.nabble.com/file/n4786393/SourceCode.zip
SourceCode.zip
P.S.: I have attached the source code for the files mentioned about above in
SourceCode.zip.
Thanks,
Jignesh
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