Consuming ABL WSA web services with a ColdFusion client.

Posted by Admin on 07-Aug-2007 14:51

My CF code is as follows:

My problem is that the pdCustBal holder never gets populated.

The log files for the WSA look fine:

P-003544 T-http-8080-Processor8 3 wsa1 WSA New Request: ID=51 (10927)

P-003544 T-http-8080-Processor8 3 wsa1 WSA New Request: ID=51 (10927)

P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug POST request received from client anonymous at address 127.0.0.1 (10963)

P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug Raw SOAP request:

P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug 

1 (10964)
[07/08/07@13:29:10.644-0400] P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug    Raw SOAP response:
[07/08/07@13:29:10.644-0400]]>
[07/08/07@13:29:10.644-0400] P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug    
[07/08/07@13:29:10.644-0400] P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug    
[07/08/07@13:29:10.644-0400] P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug    
[07/08/07@13:29:10.644-0400] P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug    903.64
[07/08/07@13:29:10.644-0400] P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug    
[07/08/07@13:29:10.644-0400] P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug    
[07/08/07@13:29:10.644-0400] P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug    
[07/08/07@13:29:10.644-0400] P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug    ]]>

P-003544 T-http-8080-Processor8 4 wsa1 Message-Debug (10960)

Any ideas?

CF 7.0.2MX

OE 10.1B

Thanks,

Phillip

OpenEdge Development - Forum

All Replies

Posted by chadthomson on 16-Aug-2007 09:20

I've had some recent experiences working with ColdFusion against Webserverices (and OpenEdge services in specific).

When ColdFusion first accesses the WSDL of a webservice, it produces stubs for each method found.

Since your typical ABL procedure (generated to a webservice) has input and OUTPUT parameters, the resulting Java methods have a return value and output parameter.

When you try to access the methods as you have:

webService.checkBalance(piCustNum,pdCustBal);

CF doesn't realize that pdCustBal is an "output" parameter. It's expecting that the method only has a "return value".

I've found success with two avenues:

1: write a java wrapper to the Webservice classes that exposes a method to retrieve the output parameter. --

webservericewrapper.checkbalance(picustnum);

pdCustbal = webservicewrapper.getCustBal();

2: use a combination of the HTTP request object and XML parsing to build and parse the SOAP/XML "manually"

I hope that helps.

Posted by Admin on 27-Aug-2007 07:27

@Chad,

Thanks for the info. Here's what I ended up doing:

piCustNum = 1;

piCustNum = JavaCast("int", piCustNum);

pcCustBal = CreateObject("java","javax.xml.rpc.holders.StringHolder").init();

webService = createObject("webservice", "http://localhost:8080/wsa/wsa1/wsdl?targetURI=urn:wsCBalance");

webService.checkBalance(piCustNum,pcCustBal);

returnEnv = getSOAPResponse(webService);

pcCustBal = returnEnv;

I basically modified your concept with idea #2 so that I wouldn't have to generate the HTTP request. It's not the greatest solution but it's significantly less work.

Thanks again-

Phil

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