Are you sure this is a bug? Since your on the Apache webservices team, I'll take your word for it.
I was expecting I'm just doing something wrong, though if there's a right way to do this, I can't find it documented anywhere.
Is there really no way to get Java2WSDL to add the "mime:multipartRelated" element inserted in the "wsdl:output" of a "wsdl:operation" within the "wsdl:binding" portion of the WSDL document?
Cheers, Bill
On Apr 2, 2004, at 8:52 AM, Davanum Srinivas wrote:
Please log a bug - http://issues.apache.org/jira/
--- William Bug <[EMAIL PROTECTED]> wrote:Hi All,
I'm having trouble creating an appropriate WSDL file to create a service that returns a large set of binary attachments.
I've been trying to combine what I could pull from the documentation on
WSDL2Java with the info in the very useful article:
Web services programming tips and tricks: SOAP attachments with JAX-RPC
http://www-106.ibm.com/developerworks/webservices/library/ws-tip-
soapjax.html
So far, I've not been successful.
I've got an original implementation in SAAJ that works, but the code is
much more complicated than it would be had I used JAX-RPC attachments
as described in the article listed above.
I created a very simple Interface that I ran through Java2WSDL to create my WSDL file.
The Interface is as follows:
<snippet> import java.io.File; import java.rmi.Remote; import java.rmi.RemoteException;
/** * * @author billbug */ public interface IRepositoryAccess extends Remote { public File[] getImages(Boolean returnZip, String imageSet) throws RemoteException; } </snippet>
I assumed extrapolating from the article above that I could have a return type of File[] to return a collection of attached files.
The WSDL generated from this interface is all exactly as I'd expect it to be - except in the wsdl:output element created within the wsdl:operation element for my function call within the wsdl:binding section of the WSDL. Unfortunately, all I get is:
<snippet>
<wsdl:output name="getImagesResponse">
<wsdlsoap:body namespace="urn:RepositoryAccessService" use="encoded"/>
</wsdl:output>
</snippet>
According to the article, it should look something like this:
<snippet> <wsdl:output name="getImagesResponse"> <mime:multipartRelated> <mime:part name="part1"> <wsdlsoap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"; namespace="urn:RepositoryAccessService" use="encoded"/> </mime:part> <mime:part name="part2"> <mime:content part="output" type="application/octetstream"/> </mime:part> </mime:multipartRelated> </wsdl:output> </snippet>
with: xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/"; included in the wsdl:definitions element at the top of the WSDL.
Basically, it's a multipart MIME message, where the first part is the body of the SOAP response message, the the additional part(s) are the attached binary files.
If I add in the mime:multipartRelated as given above into the wsdl:output element, then try to run WSDL2Java, I get the following error:
java org.apache.axis.wsdl.WSDL2Java --output "gen" --deployScope
"Application" --server-side --skeletonDeploy --verbose
RepositoryAcess.wsdl
java.lang.NullPointerException
at
org.apache.axis.wsdl.symbolTable.SymbolTable.addMIMETypes(SymbolTable. ja
va:2084)
at
org.apache.axis.wsdl.symbolTable.SymbolTable.fillInBindingInfo(SymbolT ab
le.java:1860)
at
org.apache.axis.wsdl.symbolTable.SymbolTable.populateBindings(SymbolTa bl
e.java:1795)
at
org.apache.axis.wsdl.symbolTable.SymbolTable.populate(SymbolTable.java :
577)
at
org.apache.axis.wsdl.symbolTable.SymbolTable.add(SymbolTable.java:421)
at
org.apache.axis.wsdl.symbolTable.SymbolTable.populate(SymbolTable.java :
408)
at
org.apache.axis.wsdl.symbolTable.SymbolTable.populate(SymbolTable.java :
393)
at
org.apache.axis.wsdl.gen.Parser$WSDLRunnable.run(Parser.java:245)
at java.lang.Thread.run(Thread.java:552)
I peaked into the source for org.apache.axis.wsdl.symbolTable.SymbolTable. At line 2084 where it's hitting a NullPointerException, it is in the function addMIMETypes as indicated above. Here's a snippet from that function:
<snippet>
/**
* Add the parts that are really MIME types as MIME types.
* A side effect is to return the body Type of the given
* MIMEMultipartRelated object.
*/
private Use addMIMETypes(BindingEntry bEntry, MIMEMultipartRelated
mpr,
Operation op) throws IOException {
Use bodyType = Use.ENCODED;
List parts = mpr.getMIMEParts();
Iterator i = parts.iterator();
while (i.hasNext()) {
MIMEPart part = (MIMEPart) i.next();
List elems = part.getExtensibilityElements();
Iterator j = elems.iterator();
while (j.hasNext()) {
Object obj = j.next();
if (obj instanceof MIMEContent) {
MIMEContent content = (MIMEContent) obj;
TypeEntry typeEntry = findPart(op,
content.getPart());
line:2084-->String dims = typeEntry.getDimensions();
if(dims.length() <=0 && typeEntry.getRefType() !=
null) {
Node node = typeEntry.getRefType().getNode();
if(getInnerCollectionComponentQName(node)!=null)
dims += "[]";
}
String type = content.getType();
if(type == null || type.length() == 0)
type = "text/plain";
bEntry.setMIMEInfo(op.getName(), content.getPart(),
type, dims);
</snippet>
As best I figure from this code, the typeEntry object is null, probably
because content.getPart() returns null or an invalid value.
I'm pretty certain I've got the wsdl:output MIME syntax in the WSDL very close. The part I'm pretty certain is wrong is the line:
<mime:content part="output" type="application/octetstream"/>
I think the 'part="output" is the offending piece. The article I'm
using as my example describes how to create a WSDL for a function that
accepts an attachment as an input parameter, not one that returns an
attachment. I'm also trying to attach several files, not just a single
file. It seems I ought to have to specify I'm returning an array of
attachments somewhere in the mime:content element.
I've been to the World-Wide Web consortium site to look over the WSDL v1.2 specification. There's very little info contained in the section on MIME multi-part messages: http://www.w3.org/TR/2003/WD-wsdl12-bindings-20030611/#_mime There's really nothing here that goes much beyond the original article I site above.
Can anyone suggest how to get this working?
Many thanks ahead of time for any assistance you can offer.
Cheers, Bill Bug
Bill Bug Senior Analyst/Ontological Engineer
Laboratory for Bioimaging & Anatomical Informatics Department of Neurobiology & Anatomy Drexel University College of Medicine 2900 Queen Lane Philadelphia, PA 19129 215 991 8430 (ph)
===== Davanum Srinivas - http://webservices.apache.org/~dims/
Bill Bug Senior Analyst/Ontological Engineer
Laboratory for Bioimaging & Anatomical Informatics Department of Neurobiology & Anatomy Drexel University College of Medicine 2900 Queen Lane Philadelphia, PA 19129 215 991 8430 (ph)
