IBM Branch Transformation Toolkit 5.1 Migration and Usage Guidelines

Chapter 6. Post-migration activities 163

import com.ibm.btt.samples.business.sna.lu0.DummyLu0Record;

import com.ibm.btt.services.*;

import com.ibm.btt.services.jdbcjournalservice.Journal;

import com.ibm.btt.formatter.client.FormatElement;

In execute() method add the code in Example 6-10.

Example 6-10 Additional code for depositServerOp.snippets.state2 execute() method

try{

javax.naming.Context initialContext = null;

ConnectionFactory connectionFactory = null;

if (initialContext == null) {

initialContext = new javax.naming.InitialContext();

connectionFactory = (ConnectionFactory)

initialContext.lookup("snalu0");

}

// START TRANSACTION

long begin = System.currentTimeMillis();

DummyLu0ConnectionSpec lu0ConnectionSpec = new

DummyLu0ConnectionSpec();

lu0ConnectionSpec.setUserName("sna");

lu0ConnectionSpec.setPassword("sna");

Connection connection =

connectionFactory.getConnection(lu0ConnectionSpec);

System.out.println("connection created...");

// Beginning of testing SYNC_SEND_RECEIVE

Interaction interaction = connection.createInteraction();

System.out.println("interaction created...");

DummyLu0InteractionSpec interactionSpec = new

DummyLu0InteractionSpec();

DummyLu0Record in = new DummyLu0Record();

DummyLu0Record out = new DummyLu0Record();

in.setData((String) getValueAt("HostBuff"));

interactionSpec.setInteractionVerb(InteractionSpec.SYNC_SEND_RECEIVE);

interactionSpec.setExecutionTimeout(10000);

interaction.execute(interactionSpec, in, out);

System.out.println("data from host: " + out.getData());

164 IBM Branch Transformation Toolkit 5.1 Migration and Usage Guidelines

interaction.close();

System.out.println("interaction closed...");

connection.close();

System.out.println("connection closed...");

com.ibm.btt.formatter.client.FormatElement fromHost =

(com.ibm.btt.formatter.client.FormatElement) getFormat("depositRecFmt");

//$NON-NLS-1$

fromHost.unformat(out.getData(),getContext());

}catch(Exception e){

e.printStackTrace();

}

Change "return 0" to" return 1".

For depositServerOp.snippets.state3, add the import class code in

Example 6-11 on top:

Example 6-11 Import class code for depositServerOpsnippets.state3

import com.ibm.btt.services.jdbcjournalservice.JDBCJournal;

import com.ibm.btt.services.jdbcjournalservice.Journal;

In execute() method add code in Example 6-12.

Example 6-12 Additional code for depositServerOpsnippets.state3

try{

Journal journal;

journal = (Journal)getService("JournalService");

journal.addRecord(getContext(), " afterRecJournalFmt");//$NON-NLS-1$

journal.releaseServiceRequester();

}catch(Exception e){

e.printStackTrace();

}

Change "return 0" to"return 1".

For the complete source code, refer to Appendix A, “Branch Transformation

Toolkit development and runtime requirements” on page 477 and Appendix B,

“Setting up a Branch Transformation Toolkit sample application” on page 493.

9. Modify the BPEL file for depositServerOp business process.

a. Find the package named depositServerOp, and double-click

depositServerOp.bpel to edit.

b. Select depositServerOp. Its properties are displayed in the lower panel.

Select Environment, change the ContextMode to remote, and add

Chapter 6. Post-migration activities 165

"TrxReplyCode, AccountBalance, TrxErrorMessage" to the MapList. See

Figure 6-38.

• In the editor, select initial → Implementation. Delete the second line

of the code.

• In the same way, select state2 → Implementation. Delete the second

line of the code.

Save and close the depositServerOp.bpel file.

Figure 6-38 Modify environment property

166 IBM Branch Transformation Toolkit 5.1 Migration and Usage Guidelines

10.Modify the *.wsdl file for the depositServerOp business process.

In the same package, open depositServerOpInterface.wsdl with Source

Editor. Add two new lines in the message tag named InputMessage, as in

Example on page 166.

<part name="Amount" type="xsd:string" />

<part name="AccountNumber" type="xsd:string" />

The result should look as follows:

<message name="InputMessage">

<part name="systemData" type="xsd1:BTTSystemData"/>

<part name="Amount" type="xsd:string" />

<part name="AccountNumber" type="xsd:string" />

</message>

Save and close depositServerOpInterface.wsdl..

11.Implement the snippets for the withdrawalServerOp business process.

Expand the BaseSampleProcess project, and find the package named

withdrawalServerOp.snippets. Edit three Java files inside: initial.java,

state2.java, and state3.java.

For withdrawalServerOp.snippets.initial, add the import class code in

Example 6-13 on top.

Example 6-13 Added import code for withdrawalServerOp.snippets.initial.java

import com.ibm.btt.base.Context;

import com.ibm.btt.formatter.client.FormatElement;

import com.ibm.btt.server.flow.al.workarea.BPWorkArea;

import com.ibm.btt.services.jdbcjournalservice.JDBCJournal;

import com.ibm.btt.services.jdbcjournalservice.Journal;

import com.ibm.websphere.workarea.UserWorkArea;

In the execute() method, add the code in Example 6-14.

Example 6-14 Code for execute() method of withdrawalServerOp.snippets.initial.java

try{

if(getContext().getParent()==null)

//getContext().chainTo(Context.getContextNamed("javaSessionCtx"));

getContext().chainTo(Context.getContextByInstanceID(getSystemData().getInst

anceId()));

// JDBCJournal journal;

Journal journal;

Chapter 6. Post-migration activities 167

setValueAt("HostBuff",((FormatElement)getFormat("withdrawalSendFmt")).forma

t(getContext()));//$NON-NLS-2$//$NON-NLS-1$

// writes to the journal using the appropriate format

journal = (Journal)getService("JournalService");

journal.addRecord(getContext(),"preSendJournalFmt ");//$NON-NLS-1$

journal.releaseServiceRequester();

System.out.println("Withdrawal : executeJournalHostRequestDataStep

ok!");

} catch(Exception e){

e.printStackTrace();

}

Change "return 0" to" return 1";

For withdrawalServerOp.snippets.state2, add the needed import class code

in Example 6-15 on top:

Example 6-15 Added import class code for withdrawalServerOp.snippets.state2

import java.util.Hashtable;

import javax.resource.cci.*;

import com.ibm.btt.base.*;

import com.ibm.btt.samples.business.sna.lu0.DummyLu0ConnectionSpec;

import com.ibm.btt.samples.business.sna.lu0.DummyLu0InteractionSpec;

import com.ibm.btt.samples.business.sna.lu0.DummyLu0Record;

import com.ibm.btt.services.*;

import com.ibm.btt.services.jdbcjournalservice.Journal;

import com.ibm.btt.formatter.client.FormatElement;

In the execute() method, add the code in Example 6-16:

Example 6-16 Additional code for withdrawalServerOp.snippets.state2 execute() method

try{

javax.naming.Context initialContext = null;

ConnectionFactory connectionFactory = null;

if (initialContext == null) {

initialContext = new javax.naming.InitialContext();

connectionFactory = (ConnectionFactory)

initialContext.lookup("snalu0");

}

// START TRANSACTION

long begin = System.currentTimeMillis();