Patterns: Implementing Self-Service in an SOA Environment

Chapter 12. J2EE Connector Architecture scenario 431

public MartAccounts deleteMartAccount_CICS(MartAccounts input) throws

Exception{

MartAccounts respOutput_forDelete = null;

try{

MartJ2CBeanImplProxy proxy = new MartJ2CBeanImplProxy();

respOutput_forDelete = proxy.deleteCustomer(input);

}catch (Exception e){

System.out.println("JCAWSClientBean -

deleteMartAccount_CICS failed" + e.toString());

throw e;

}

return respOutput_forDelete;

}

12.4.4 Integrate the JCA service client with Processor

Now we are ready to integrate the two components.

Processor.java calls the JCA service client.

Attention: During this project we ran into a few problems using the early

version of Rational Software Architect. We anticipate the fixes for these

problems to be included in a near future Fix Pack. In the meantime, here are

the problems that we ran into and the work-arounds we used.

򐂰 Problem 1: Change the componentNameLink value in bnd file.

a. Open

JCAClient/ejbModule/META-INF/ibm-webservicesclient-bnd.xmi.

b. Replace the value ___SET_THIS_TO_ejb-name___ of

componentNameLink to JCAWSClient.

򐂰 Problem 2: Change the

componentNameLink value in ext file.

a. Open

JCAClient/ejbModule/META-INF/ibm-webservicesclient-ext.xmi.

b. Replace the value ___SET_THIS_TO_ejb-name___ of

componentNameLink to JCAWSClient.

򐂰 Problem 3: Add serializable statement in MartAccounts.java.

a. Open

JCAClient/ejbModule/com.ibm.patterns.jcaService/MartAccounts.

java.

b. Add implements java.io.Serializable to public class MartAccounts:

public class MartAccounts implements java.io.Serializable {

432 Patterns: Implementing Self-Service in an SOA Environment

򐂰 Processor.java can be found in ProcessorEJB EJB Project

򐂰 Package com.ibm.patterns.serialProcess.

Example 12-16 shows the snippet of code in Processor.java that invokes the

Web service for the JCA call.

Example 12-16 Call to JCA in Processor.java

private void createCustomer() {

//Call to CreditRating application

String creditRating = new ProcessorWebService().getCreditRating(customerDetails);

if (isCreditSatisfactory(creditRating)) {

//Credit is Satisfactory

//Create customer in CRM and send Acceptance Mail

ProcessorJCA.storeCustomerDetails_CICS(customerDetails);

new MailService().sendActivationMail(customerDetails);

System.out.println("Customer created successfully....");

}

else {

//Credit rating is not satisfactory

//Delete customer from Db2 and send rejection Email

deleteCustomerfromDB();

new MailService().sendRejectionEmail(customerDetails);

System.out.println("The customer does not have satisfactory credit");

}

}

private void deleteCustomer() {

ProcessorJCA.deleteCustomerDetails_CICS(pkey);

deleteCustomerfromDB();

new MailService().sendDeletionEmail(pkey);

System.out.println("Customer deleted successfully...");

}

private void updateCustomer() {

ProcessorJCA.updateCustomerDetails_CICS(pkey);

new MailService().sendUpdationEmail(customerDetails);

System.out.println("Customer details updated successfully...");

}

}