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1 package xpetstore.web.struts.action;
2
3 import java.util.ResourceBundle  ;
4
5 import javax.naming.InitialContext ;
6
7 import javax.servlet.http.HttpServletRequest ;
8 import javax.servlet.http.HttpServletResponse ;
9 import javax.servlet.http.HttpSession ;
10
11 import org.apache.commons.logging.Log;
12 import org.apache.commons.logging.LogFactory;
13 import org.apache.struts.action.Action;
14 import org.apache.struts.action.ActionForm;
15 import org.apache.struts.action.ActionForward;
16 import org.apache.struts.action.ActionMapping;
17
18 import xpetstore.domain.customer.ejb.Customer;
19
20 import xpetstore.services.cart.ejb.Cart;
21 import xpetstore.services.petstore.ejb.Petstore;
22
23
24
27 public abstract class BaseAction
28 extends Action
29 {
30
32 public static final String BUNDLE_NAME = "Resources";
33 public static final String CART_KEY = "cart";
34 public static final String ERROR = "error";
35 public static final String MESSAGE_KEY = "message";
36 public static final String SUCCESS = "success";
37 public static final String USERID_KEY = "userId";
38 public static final String USERNAME_KEY = "username";
39
40
42 protected Log _log = LogFactory.getLog( getClass( ) );
43
44
46 protected void clearSession( HttpServletRequest request )
47 throws Exception
48 {
49 HttpSession session = request.getSession( );
50
51 session.removeAttribute( USERID_KEY );
52 session.removeAttribute( USERNAME_KEY );
53
54 Cart cart = getCart( false, request );
55
56 if ( cart != null )
57 {
58 session.removeAttribute( CART_KEY );
59 cart.remove( );
60 }
61 }
62
63 protected abstract ActionForward doExecute( ActionMapping mapping,
64 ActionForm form,
65 HttpServletRequest request,
66 HttpServletResponse response )
67 throws Exception ;
68
69
73 public ActionForward execute( ActionMapping mapping,
74 ActionForm form,
75 HttpServletRequest request,
76 HttpServletResponse response )
77 throws Exception
78 {
79 _log.info( "execute()" );
80
81 return doExecute( mapping, form, request, response );
82 }
83
84 public Cart getCart( boolean create,
85 HttpServletRequest request )
86 throws Exception
87 {
88 HttpSession session = request.getSession( );
89 Cart cart = ( Cart ) session.getAttribute( CART_KEY );
90 if ( ( cart == null ) && create )
91 {
92 cart = (Cart)new InitialContext ().lookup("ejb/Cart");
93 session.setAttribute( CART_KEY, cart );
94 }
95
96 return cart;
97 }
98
99 public Cart getCart( HttpServletRequest request )
100 throws Exception
101 {
102 return getCart( true, request );
103 }
104
105 public Petstore getPetstore( )
106 throws Exception
107 {
108 return (Petstore)new InitialContext ().lookup("ejb/Petstore");
109 }
110
111 public String getString( String key )
112 {
113 try
114 {
115 return ResourceBundle.getBundle( BUNDLE_NAME ).getString( key );
116 }
117 catch ( Exception e )
118 {
119 return "???" + key + "???";
120 }
121 }
122
123 protected void initSession( Customer customer,
124 HttpServletRequest request )
125 {
126 HttpSession session = request.getSession( );
127 session.setAttribute( USERID_KEY, customer.getUserId( ) );
128 session.setAttribute( USERNAME_KEY, customer.getFirstname( ) + " " + customer.getLastname( ) );
129 }
130 }
131 |
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