1 Reply Latest reply on Sep 19, 2002 3:59 PM by berkgypsy

specifying DataHandler as input argument for webservice

filipdef Sep 18, 2002 11:08 PM

Hi,

Has anyone been able to register a DataHandler
as an input parameter to an Axis call (using
Jbossj-3.1.0alpha_tomcat-4.0.4, which includes
AxisB1) ?

When I pass in the datahandler into the Call.invoke,
I get following error (before even attempting to
make the call..):

java.lang.IllegalArgumentException: argument type mismatch on object "$Proxy88", method name "dummy", tried argument typ
es: org.apache.axis.attachments.AttachmentPart
at org.apache.axis.message.SOAPFaultBuilder.endElement(Unknown Source)
at org.apache.axis.encoding.DeserializationContextImpl.endElement(Unknown Source)
at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1528)
at org.apache.crimson.parser.Parser2.content(Parser2.java:1779)
at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1507)
at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:500)
at org.apache.crimson.parser.Parser2.parse(Parser2.java:305)
at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:442)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:345)
at org.apache.axis.encoding.DeserializationContextImpl.parse(Unknown Source)
at org.apache.axis.SOAPPart.getAsSOAPEnvelope(Unknown Source)
at org.apache.axis.client.Call.invoke(Unknown Source)

Here's a code snippet that shows what I'm doing
(and hopefully also what I'm NOT doing!):

call.setOperationName("dummy");

call.registerTypeMapping( DataHandler.class,
new QName("DataHandler"),
JAFDataHandlerSerializerFactory.class,
JAFDataHandlerDeserializerFactory.class );

// Call to addParameter/setReturnType as described in user-guide.html
call.addParameter(new QName("handlerIn"),
new QName("DataHandler"),
ParameterMode.PARAM_MODE_IN);

call.setReturnType( new QName("DataHandler") );

Object ret = null;
try {
logger.debug("calling dummy");
ret = call.invoke( new Object[] { inputH } );

} ..... ((inputH is a DataHandler that is passed in).

Many thanks in advance!

- Filip

1. Re: specifying DataHandler as input argument for webservice

berkgypsy Sep 19, 2002 3:59 PM (in response to filipdef)

Here is my code that works and does pretty much the same thing, but I'm using axis b2...

DataHandler dhSource = new DataHandler( new FileDataSource( filename ));

Service service = new Service();
Call call = (Call) service.createCall();
logger.info("Invoking the service at " + serviceURL);
call.setTargetEndpointAddress( new URL(serviceURL) ); //Set the target service host and service location
call.setOperationName(new QName("urn:UploadManagerService","upload") ); //This is the target service method to invoke.
QName qnameAttachment = new QName("urn:UploadManagerService", "DataHandler");

call.registerTypeMapping(dhSource.getClass(),//Add serializer for attachment.
qnameAttachment,
JAFDataHandlerSerializerFactory.class,
JAFDataHandlerDeserializerFactory.class);

result = (String)call.invoke( new Object[] { dhSource } ); //Add the attachment.
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