bookpurchaseservice.java

java web services how to program

// Fig. 16.23: BookPurchaseService.java.
// BookPurchaseService invokes the Book Purchase Web service.
package jws1casestudy.clients.j2me;

// import J2ME classes
import java.util.*;

// import Enhydra XML and SOAP packages
import org.ksoap.*;
import org.ksoap.transport.*;
import org.kobjects.serialization.*;

// import Deitel packages
import jws1casestudy.pricefinder.common.Customer;

public class BookPurchaseService {

   // URL of Book Purchase Web service
   private final static String SERVICE_URL = 
      "http://localhost:8080/axis/services/BookPurchase";

   // namespace that Book Purchase Web service uses
   private final static String NAMESPACE = 
      "http://schemas.xmlsoap.org/soap/envelope/";

   // invoke Book Purchase Web service
   public void placeOrder( PriceQuote quote, Customer customer )
   {
      // invoke Web service and convert result to String array
      try {

         // establish HTTP connection to Web-service URL
         HttpTransport httpTransport = 
            new HttpTransport( SERVICE_URL, "" );

         // create SOAP request to invoke Book Purchase service
         SoapObject request = 
            new SoapObject( NAMESPACE, "orderBook" );

         // create SoapPrimitive to represent price, because
         // CLDC does not support floating-point operations
         SoapPrimitive price = new SoapPrimitive( 
            "http://www.w3.org/2001/XMLSchema", "double", 
            quote.getPrice() );

         // create elements quote and customer
         SoapObject quoteElement = new SoapObject( "", "" );
         SoapObject customerElement = new SoapObject( "", "" );

         // include PriceQuote as parameter in SOAP request
         quoteElement.addProperty( "price", price );
         quoteElement.addProperty( "isbn", quote.getIsbn() );
         quoteElement.addProperty( "storeID", 
            new Integer( quote.getStoreID() ) );
         quoteElement.addProperty( "storeDescription", 
            quote.getStoreDescription() );

         // include Customer as parameter in SOAP request
         customerElement.addProperty( "firstName", 
            customer.getFirstName() );
         customerElement.addProperty( "lastName", 
            customer.getLastName() );
         customerElement.addProperty( "emailAddress", 
            customer.getEmailAddress() );
         customerElement.addProperty( "streetAddress", 
            customer.getStreetAddress() );
         customerElement.addProperty( "city", 
            customer.getCity() );
         customerElement.addProperty( "state", 
            customer.getState() );
         customerElement.addProperty( "zipCode", 
            customer.getZipCode() );
         customerElement.addProperty( "country", 
            customer.getCountry() );
         customerElement.addProperty( "creditCardNumber", 
            customer.getCreditCardNumber() );

         // add elements quote and customer to root element
         request.addProperty( "quote", quoteElement );
         request.addProperty( "customer", customerElement );

         // invoke Book Purchase Web service
         httpTransport.call( request );
      }

      // handle exception in Web-service invocation
      catch ( SoapFault fault ) {
         fault.printStackTrace();
      }

      // handle exception in sending or receiving SOAP message
      catch ( java.io.IOException ioException ) {
         ioException.printStackTrace();
      }

   } // end method placeOrder

} // end class BookPurchaseService