Hi,
I am using Eclipse 3.2 with the latest Webtools to develop a webservice.
As engine to run the service I use to tomcat 5.5 with axis 1.3 (axis
is coming with eclipse!? - well I havent installed it anyway :D)
IDEA:
the service exposes two operations:
<code>
BackupResult uploadFiles(BackupFile[] files);
BackupResult downloadFiles();
//result is container for error OR files array.
</code>
SERVER:
Axis was used here to make WSDL for my Java Bean and manages the
service when published on the tomcat server.
CLIENT:
wsdl2java genereated me the necessary stubs for the needed Bean (and
all complex types)
My calls to the service are performed using axis
SO FAR SO GOOD
All's up and running... but one major drawback: every file's content
is a byte[]
This works for small files or few files but not when having to load
all data in memory just so I can then send it off.
I decided that what I wanted were attachments. And as my clients are
java and/or c# I needed a interopable solution.
AND HERE'S WHERE IT WENT WRONG
:) I realized I'd need REAL Attachments (not just some variable typed
as DataHandler) and they'd have to be in the DIME format.
I cant get ANY attachment to work though :/ (oh and I do have action
and mail.jar - no RuntimeError IIRC)
I tackled upload first. So the client has to attach data.
<code>
//remove old and make DIME
try {
((BackupServiceProxy)
backupService).getStub().clearAttachments();
((BackupServiceProxy)
backupService).getStub()._setProperty(
Call.ATTACHMENT_ENCAPSULATION_FORMAT,
Call.ATTACHMENT_ENCAPSULATION_FORMAT_DIME);
} catch (Exception e) {
e.printStackTrace();
}
...
//attach File
DataSource source = new FileDataSource(new File(path));
DataHandler buildFile = new DataHandler(source);
try {
((BackupServiceProxy)
backupService).getStub().addAttachment(
buildFile);
} catch (Exception e) {
e.printStackTrace();
}
</code>
I do this in a static private method after which I make the call
using the proxy object (which in turn just calls the stub):
<code>
public core.BackupResult uploadFiles(core.BackupSettings settings,
core.BackupFile[] files) throws
java.rmi.RemoteException {
if (backupService == null)
_initBackupServiceProxy();
try {
int attachLength = ((BackupServiceSoapBindingStub)
backupService).getAttachments().length;
System.out.println(attachLength + " attachments");
} catch (Exception e) {
e.printStackTrace();
}
return backupService.uploadFiles(settings, files);
}
</code>
i added an output and it returns the correct amount of attachments
namely one for each file.
next step is to 'unpack' the attachments on the server and here I get
0 everytime:
<code>
public static AttachmentPart[] getMessageAttachments() throws
AxisFault {
MessageContext msgContext = MessageContext.getCurrentContext();
if (null == msgContext) {
System.out.println("cant get context");
return null;
}
System.out.println("name of msg:" + msgContext.getCurrentMessage
().getSOAPPartAsString());
Iterator it = msgContext.getCurrentMessage().getAttachments();
ArrayList<AttachmentPart> attachments = new
ArrayList<AttachmentPart>();
while (it.hasNext()) {
AttachmentPart part = (AttachmentPart) it.next();
attachments.add(part);
}
System.out.println(attachments.size() + " attachments");
return attachments.toArray(new AttachmentPart[0]);
}
}
</code>
QUESTION:
Simply - WHY. Im desperate and after hours of experimenting I ran out
of ideas...
Best regards,
and thanks in advance,
Dominik
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