1    package net.server.servlets; 
2     
3    import javax.servlet.http.Cookie; 
4    import javax.servlet.http.HttpServletRequest; 
5    import java.util.Enumeration; 
6    import java.util.Vector; 
7     
8    /** 
9     * RequestUtil Class 
10    */ 
11    
12   public class RequestUtil { 
13    
14       /** 
15        * Returns the parameters as an array 
16        * 
17        * @return      String[] 
18        */ 
19    
20       public static String[] getParmNames(HttpServletRequest request) { 
21    
22           Vector v = new Vector(); 
23    
24           Enumeration e = 
25                   request.getParameterNames(); 
26    
27           while (e.hasMoreElements()) 
28               v.addElement(e.nextElement()); 
29    
30           String s[] = new String[v.size()]; 
31    
32           for (int i = 0; i < s.length; i++) 
33               s[i] = (String) v.elementAt(i); 
34    
35           return s; 
36    
37       } 
38    
39       /** 
40        * Returns the parameter values as an array 
41        * 
42        * @return      String[] 
43        */ 
44    
45       public static String[] getParmValues(String pn[], 
46                                            HttpServletRequest request) { 
47    
48           String pv[] = new String[pn.length]; 
49    
50           for (int i = 0; i < pn.length; i++) 
51               pv[i] = request.getParameter(pn[i]); 
52    
53           return pv; 
54       } 
55    
56       /** 
57        * Returns the cookie value 
58        * 
59        * @return       String         cookieValue 
60        */ 
61    
62       public static String getCookieValue(Cookie[] cookies, String cookieName) { 
63    
64           for (int i = 0; i < cookies.length; i++) { 
65               Cookie cookie = cookies[i]; 
66               if (cookieName.equals(cookie.getName())) 
67                   return (cookie.getValue()); 
68           } 
69    
70           return null; 
71       } 
72    
73       /** 
74        * Returns the Cookies as an array 
75        * 
76        * @return       Cookie         cookie 
77        */ 
78    
79       public static Cookie getCookie(Cookie[] cookies, String cookieName) { 
80    
81           for (int i = 0; i < cookies.length; i++) { 
82               Cookie cookie = cookies[i]; 
83               if (cookieName.equals(cookie.getName())) 
84                   return cookie; 
85           } 
86    
87           return null; 
88       } 
89    
90   } 
91    
92