Cocoa, WebServices and J5EE working in harmony (almost)
Cocoa, WebServices and J5EE working in harmony (almost)
- Subject: Cocoa, WebServices and J5EE working in harmony (almost)
- From: Alexander Hartner <email@hidden>
- Date: Tue, 16 Jan 2007 01:51:15 +0000
I set out with the goal of calling a EJB3 Stateless Session bean via
a webservice. I started out by declaring a session bean and
annotating it as a webservice(see below). Once deployed and tested I
generated stubs using
/Developer/Tools/WSMakeStubs -x ObjC -dir syncClient/SyncClientWS/ -
name SyncClient -url "http://localhost:8080/SynchroniserBean/
SynchroniserBean?WSDL"
It generated 4 files (2 x .h and 2 x .m). After a bit of searching
around I figured I should be using the following code to invoke my
service :
NSDictionary * params = [NSDictionary dictionary];
id result = [SynchroniserBeanService synchroniseNothing:params];
NSLog(@"Result : %@",result);
This however did not produce the result I expected. After some
further googling I came accross the following article which suggested
a solution:
http://www.cocoadev.com/index.pl?
WSMakeStubsWSGenerateObjCallingASPNETWebservice
In the end I didn't use the generated stubs and got the following
code to work. I am still battling passing objects as parameters
including user defined types. If anybody has an example of getting
either the stubs working or how to pass parameters I would be very
grateful.
WSMethodInvocationRef rpcCall;
NSURL *rpcURL = [NSURL URLWithString: @"http://localhost:8080/
SynchroniserBean/SynchroniserBean"];
NSString *methodName = @"synchroniseNothing";
NSDictionary * params = [NSDictionary dictionary];
NSDictionary *result;
rpcCall = WSMethodInvocationCreate ((CFURLRef) rpcURL, (CFStringRef)
methodName, kWSSOAP2001Protocol);
WSMethodInvocationSetProperty(rpcCall, kWSSOAPBodyEncodingStyle,
(NSString*) kWSSOAPStyleDoc);
WSMethodInvocationSetParameters (rpcCall, (CFDictionaryRef) params,
NULL);
WSMethodInvocationSetProperty(rpcCall, kWSSOAPMethodNamespaceURI,
@"http://synchomatic.j2anywhere.com/";);
NSString * soapActionKey = @"SOAPAction";
NSString * soapAction = @"http://synchomatic.j2anywhere.com/
synchroniseNothing";
NSDictionary * headers = [[NSDictionary
dictionaryWithObjects:&soapAction forKeys:&soapActionKey count:1]
retain];
WSMethodInvocationSetProperty(rpcCall, kWSHTTPExtraHeaders, headers);
[headers release];
result = (NSDictionary *) (WSMethodInvocationInvoke (rpcCall));
NSEnumerator *enumerator = [result keyEnumerator];
id key;
id value;
while ((key = [enumerator nextObject]))
{
value = [result objectForKey:key];
NSLog(@"Result : %@ -> %@",key,value);
}
During my searching around I also put the following AppleScript
together which might be useful to some developers.
tell application "http://localhost:8080/SynchroniserBean/
SynchroniserBean"
call soap {method name:"synchroniseNothing", method namespace
uri:"http://synchomatic.j2anywhere.com/";, parameters:{},
SOAPAction:"http://synchomatic.j2anywhere.com/synchroniseNothing"}
end tell
// EJB3 Session Bean
package com.j2anywhere.synchomatic;
import javax.ejb.Stateless;
import javax.jws.WebMethod;
import javax.jws.WebService;
@Stateless
@WebService(serviceName = "SynchroniserBean")
public class SynchroniserBean implements
com.j2anywhere.synchomatic.SynchroniserRemote,
com.j2anywhere.synchomatic.SynchroniserLocal
{
@WebMethod(operationName="synchroniseNothing")
public String synchroniseNothing()
{
System.out.println("Synchronising Nothing");
return "THIS IS A WEB SERVICE";
}
@WebMethod(operationName="synchroniseText")
public String synchroniseText(String input)
{
System.out.println("Synchronising Text");
return input.toUpperCase();
}
@WebMethod(operationName="synchronise")
public String synchronise(Contact[] people)
{
System.out.println("Synchronising Objects");
return "Processed : "+people.length+" contacts";
}
}
Alexander Hartner
email@hidden
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