Java 1.2 How-To/JavaHowTo.iso/3rdParty/jbuilder/TRIAL/JBUILDER/JVISBRKR.Z/CreditApprovalImpl.java

Java Source | 1998-05-08 | 5.9 KB | 155 lines

/*
 * Copyright (c) 1997-1998 Borland International, Inc. All Rights Reserved.
 *
 * This SOURCE CODE FILE, which has been provided by Borland as part
 * of a Borland product for use ONLY by licensed users of the product,
 * includes CONFIDENTIAL and PROPRIETARY information of Borland.
 *
 * USE OF THIS SOFTWARE IS GOVERNED BY THE TERMS AND CONDITIONS
 * OF THE LICENSE STATEMENT AND LIMITED WARRANTY FURNISHED WITH
 * THE PRODUCT.
 *
 * IN PARTICULAR, YOU WILL INDEMNIFY AND HOLD BORLAND, ITS RELATED
 * COMPANIES AND ITS SUPPLIERS, HARMLESS FROM AND AGAINST ANY CLAIMS
 * OR LIABILITIES ARISING OUT OF THE USE, REPRODUCTION, OR DISTRIBUTION
 * OF YOUR PROGRAMS, INCLUDING ANY CLAIMS OR LIABILITIES ARISING OUT OF
 * OR RESULTING FROM THE USE, MODIFICATION, OR DISTRIBUTION OF PROGRAMS
 * OR FILES CREATED FROM, BASED ON, AND/OR DERIVED FROM THIS SOURCE
 * CODE FILE.
 */
//--------------------------------------------------------------------------------------------------
// CORBA Reference Application
// Copyright (c) 1997 by Borland International, All Rights Reserved
//
// Conatins Main Server class for the Server portion of the CORBA
// Reference Application
//--------------------------------------------------------------------------------------------------

package borland.reference.creditapproval.server;

import java.util.*;
import borland.reference.creditapproval.CORBAInterface.*;

/**
* CreditApprovalImpl implements the IDL-defined CreditApproval
* interface. This class is instantiated by the CreditApprovalDispenserImpl class.
*
* Requests to approve credit are made by the client to this object.
*/
public class CreditApprovalImpl extends _sk_CreditApproval {

  private boolean connectOnDemmand;

  // Do not use the singleton instance ( getDataModule() )
  CreditHistoryReviewer creditReviewer;
  CreditCardIssuer issueCreditCard;
  ResourceBundle res = Res.getBundle("borland.reference.creditapproval.server.Res");

  /**
  * Construct a persistently named object.
  */
  public CreditApprovalImpl(java.lang.String name, boolean onDemmand, boolean randomData )
    throws Exception {

    super(name);

    connectOnDemmand   = onDemmand;

    // Instantiate Data Modules
    creditReviewer  = new CreditHistoryReviewer( randomData );
    issueCreditCard = new CreditCardIssuer();

    // If not connecting on demand, have the datamodules establish a DB connection
    // now.
    if (!connectOnDemmand) {
      creditReviewer.connect( true );
      issueCreditCard.connect( true );
    }
  }

  /**
  * Construct a transient object.
  */
  public CreditApprovalImpl() {
    super();
  }

  /**
  * Called by the client to approve and applicant for a credit card.  If the
  * applicant is approved, a credit card is also issued.
  */
  public creditApprovalStruct getCreditApproval(
    applicantInfoStruct appInfo,
    ClientCallback callback )
    throws CreditApprovalException,
           CreditDeniedException {

    creditApprovalStruct creditApproval;

    // First Approve the applicant.
    try{
      callback.updateStatusText(res.getString("Processing_Credit") + "...");
      // Make sure the applicant data is valid!
      validateData( appInfo );

      if (connectOnDemmand) creditReviewer.connect( true );
      creditApproval = creditReviewer.approveCredit( appInfo );

      // Disconnect to free up a connection for the issueCreditCard DataModule.
      if (connectOnDemmand) creditReviewer.connect( false );

      // If the applicant was approved, issue a credit card!
      if (creditApproval.approved) {
        callback.updateStatusText(res.getString("Applicant_Approved") + "...");
        if (connectOnDemmand) issueCreditCard.connect( true );
        issueCreditCard.issueCreditCard( appInfo, creditApproval);
      }
    } catch( CreditApprovalException e) {
      throw(e);
    } catch (CreditDeniedException e ) {
      throw(e);
    } catch (Exception e) {
      throw new CreditApprovalException(
                                           e.getMessage() );
    } finally {
      // Make sure both objects are disconnected
      if (connectOnDemmand) {
        try {
          creditReviewer.connect( false );
          issueCreditCard.connect( false );
        } catch (Exception e) {
          System.err.println( e );
        }
      }
    }

    // Return approval information.
    return creditApproval;
  }

  /**
  *  Check the applicant information for validity
  */
  protected void validateData( applicantInfoStruct appInfo )
    throws CreditApprovalException {

    // Make sure all REQUIRED fields contain data
    if (appInfo.firstName.compareTo("") == 0) throw new CreditApprovalException("First name is required.");
    if (appInfo.lastName.compareTo("") == 0) throw new CreditApprovalException("Last name is required.");
    if (appInfo.address1.compareTo("") == 0) throw new CreditApprovalException("Address Line 1 is required.");
    if (appInfo.city.compareTo("") == 0) throw new CreditApprovalException("City is required.");
    if (appInfo.state.compareTo("") == 0) throw new CreditApprovalException("State is required.");
    if (appInfo.postalCode.compareTo("") == 0) throw new CreditApprovalException("Postal Code is required.");
    if (appInfo.country.compareTo("") == 0) throw new CreditApprovalException("Country is required.");
    if (appInfo.phone.compareTo("") == 0) throw new CreditApprovalException("Phone is required.");
    if (appInfo.DOB.compareTo("") == 0) throw new CreditApprovalException("DOB is required.");

    // Set non-required empty strings to SPACES to satisfy the Visigenic ODBC/JDBC driver.
    // These should really be set to a database NULL.
    if (appInfo.MI.compareTo("") == 0) appInfo.MI = " ";
    if (appInfo.address2.compareTo("") == 0) appInfo.address2 = " ";
    if (appInfo.PID.compareTo("") == 0) appInfo.PID = " ";
  }
}