IBM Branch Transformation Toolkit 5.1 Migration and Usage Guidelines

466 IBM Branch Transformation Toolkit 5.1 Migration and Usage Guidelines

e. Set the EAR project as BTTBank, and click Finish. Click OK in the pop-up

window, as shown in Figure 8-192.

Figure 8-192 New BTTBankAppClientWeb

f. Click Finish in the Import Dialog boxto complete the Web Project Import.

g. Right-click the Web project BTTBankAppClientWeb, and select

Properties. In the pop-up window, select Java Build Path in the left

navigation panel, and the Projects tab in the right panel. Check

BTTBankEJB project. Click OK. This step can fix the errors in the

BTTBankAppClientWeb Web project.

2. In J2EE perspective, right-click BTTBankAppClientWeb project, and select

Java Resources. Click New → Package to create a package named

withdrawalServerOp.invoker.java.

3. Right-click BTTBankAppClientWeb project and select Java Resources →

withdrawalServerOp.invoker.java. Select New → Class to create a Java

class named WithdrawalServerOpInvoker which extends the super class

com.ibm.btt.cs.invoker.base.BeanInvokerImpl and implements the interface

Running H/F 1 467

com.ibm.btt.cs.invoker.base.BeanInvokerForJavaRequest, as shown in

Figure 8-193.

Figure 8-193 New class WithdrawalServerOpInvoker

4. Add code to class WithdrawalServerOpInvoker.java.

a. Add import class as shown in Example 8-50.

Example 8-50 Import class of WithdrawalServerOpInvoker

import com.ibm.btt.base.Context;

import java.util.Hashtable;

import javax.ejb.EJBHome;

import com.ibm.btt.base.BTTSystemData;

import com.ibm.btt.base.Constants;

import com.ibm.btt.base.DSEInvalidArgumentException;

import com.ibm.btt.base.DSEInvalidRequestException;

import com.ibm.btt.base.DSEObjectNotFoundException;

468 IBM Branch Transformation Toolkit 5.1 Migration and Usage Guidelines

import com.ibm.btt.cs.invoker.base.*;

import com.ibm.btt.cs.servlet.CSConstants;

import javax.naming.InitialContext;

import btt.bank.business.logic.*;

b. Add code to the method parseRequestData(String arg0), which uses

BeanInvokerFormatter instance to unformat the request data and put the

result into a hashtable, as shown in Example 8-51.

Example 8-51 WithdrawalServerOpInvoker.parseRequestData()

try {

//** Prepare session data in ejb parameters

getEjbParameters().put(Constants.SESSION_ID,

getSystemData().getSessionId());

getEjbParameters().put(CSConstants.DATAAPPLICATIONIDKEY,

getSystemData().getSubsessionId());

//** Get BranchId value from request data

Tokenizer tokens = getDelimitedTokenizer(arg0); //The arg0 is request data

BeanInvokerFormatter formatter = getFormatter();

String s = formatter.unformatString((String)tokens.nextToken("#"),null);

getEjbParameters().put("BranchId", s);

//** Get AccountNumber value

s = formatter.unformatString((String)tokens.nextToken("#"),null);

getEjbParameters().put("AccountNumber", s);

//** Get Date value

java.util.Date aDate =

formatter.unformatDate((String)tokens.nextToken("#"),true,"ymd",true,"/");

getEjbParameters().put("Date", aDate);

//** Get Amount value

Float amt = (Float) formatter.unformatFloat((String)tokens.nextToken("#"));

getEjbParameters().put("Amount", amt);

} catch (Exception e) {

throw new DSEInvalidRequestException(Constants.COMPID, "", e.getMessage());

}

c. Add code to the method processRespondData(Object arg0), which uses

BeanInvokerFormatter instance to format the SAE execution result to a

string for client withdrawal operation, as shown in Example 8-52.

Example 8-52 WithdrawalServerOpInvoker.processRespondData()

Hashtable haResult = (Hashtable)arg0;//The arg0 is SAE execution result.

BeanInvokerFormatter formatter = getFormatter();

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//Build a string

String responseString = "";

try {

responseString =

formatter.formatString((String)haResult.get("TrxReplyCode"), null);

responseString = formatter.addDelimiter(responseString, "#");

responseString +=

formatter.formatNumericString((String)haResult.get("AccountBalance"));

responseString = formatter.addDelimiter(responseString, "#");

responseString +=

formatter.formatString((String)haResult.get("TrxErrorMessage"), null);

responseString = formatter.addDelimiter(responseString, "#");

} catch (Exception e) {

throw new DSEInvalidRequestException(Constants.COMPID, "", e.getMessage());

}

return responseString;

d. Add code to the method createBeanInvokerProxy(), which creates an SAE

instance, as shown in Example 8-53.

Example 8-53 WithdrawalServerOpInvoker.createBeanInvokerProxy()

WithdrawalServerOp bean = null;

WithdrawalServerOpHome home = null;

try {

home = (WithdrawalServerOpHome)this.getHomeObject();

bean = (WithdrawalServerOp) home.create();

} catch (Exception e) {

throw new DSEInvalidRequestException(Constants.COMPID, "", e.getMessage());

}

return bean;

e. Add code to the method executeEJB(), which uses the created SAE

instance to execute the method in SAE and get results, as shown in

Example 8-54.

Example 8-54 WithdrawalServerOpInvoker.executeEJB()

WithdrawalServerOp bean = (WithdrawalServerOp) getBeanInvokerProxy();

Hashtable result = (Hashtable)bean.execute(getSystemData(),getEjbParameters());

return result;

f. Save and close the Java Editor for withdrawalServerOpInvoker.

470 IBM Branch Transformation Toolkit 5.1 Migration and Usage Guidelines

5. Create a property file named withdrawalServerOpOP.properties in the

package withdrawalServerOp.invoker.java.

a. Right-click BTTBankAppClient Web project, and select Java

Resources → withdrawalServerOp.invoker.java package. Click

New → Other.

b. In the dialog box, select Simple in the left navigation panel, and File in the

right panel, as shown in Figure 8-194, and click Next.

Figure 8-194 Create a simple file

c. The value in the parent folder field should be

BTTBankAppClientWeb/JavaSource/withdrawalServerOp/invoker/java,