Web Services Essentials

Service Code

The complete service code is presented in Example 5-8. The ProductService2 class extends the original ProductService class and uses the same product hashtable. The new getProductInfo( ) method receives a String SKU parameter and checks the product hashtable.

Example 5-8. ProductService2.java

package com.ecerami.soap;

import java.util.Hashtable;

/**
 * A Sample SOAP Service
 * Provides Product Information for requested Stockkeeping Unit (SKU)
 */
public class ProductService2 extends ProductService {

  /**
  *  Provides Product Info for requested SKU.
  *  If SKU is not found, method throws a ProductNotFoundException
  */
  public ProductBean getProductInfo (String sku)
    throws ProductNotFoundException {
    ProductBean product = (ProductBean) products.get(sku);
    if (product==null)
                           throw new ProductNotFoundException ("SKU Not Found:  "+sku);
    return product;
  }
}

If a match is found, the method returns the correct ProductBean. Otherwise, the method throws a ProductNotFoundException. The ProductNotFoundException code is presented in Example 5-9.

Example 5-9. ProductNotFoundException.java

package com.ecerami.soap; import org.apache.soap.Fault; /** * ProductNotFoundException * Encapsulates any exceptions related to retrieving * product/price for Specified Stockkeeping Unit (SKU) */ public class ProductNotFoundException extends Exception { private Fault fault; public ProductNotFoundException (String faultString) { super (faultString); } public ProductNotFoundException (String faultString, Fault ...