View Javadoc

1   /**
2    * 
3    */
4   package org.apache.geronimo.samples.inventory.web;
5   
6   import java.io.IOException;
7   
8   import javax.servlet.ServletException;
9   import javax.servlet.http.HttpServlet;
10  import javax.servlet.http.HttpServletRequest;
11  import javax.servlet.http.HttpServletResponse;
12  
13  import org.apache.geronimo.samples.inventory.exception.NotSufficientQuantityException;
14  import org.apache.geronimo.samples.inventory.services.InventoryManager;
15  
16  
17  public class IssueingServlet extends HttpServlet {
18  
19  	
20  	protected void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
21  		process(req,res);
22  	}
23  
24  	protected void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
25  		doGet(req,res);
26  	}
27  	
28  	private void process(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException{
29  		String itemNo = req.getParameter("item_no");
30  		
31  		int quantity = 0;
32  		try {
33  			quantity = Integer.parseInt(req.getParameter("quantity"));
34  			InventoryManager itemManager = new InventoryManager();
35  			itemManager.issueItem(itemNo,quantity);
36  
37  			getServletContext().getRequestDispatcher("/welcome.jsp").forward(req,res);
38  		} catch (NumberFormatException e) {
39  			e.printStackTrace();
40  			req.setAttribute("error","Invalid Number Format for Quantity");
41  			getServletContext().getRequestDispatcher("/jsp/error.jsp").forward(req,res);			
42  		} catch (NotSufficientQuantityException e) {
43  			req.setAttribute("error","Not Sufficient Qunatity to Issue Items");
44  			getServletContext().getRequestDispatcher("/jsp/error.jsp").forward(req,res);	
45  		}
46  	}
47  	
48  
49  }