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1
16 package org.apache.myfaces.context.servlet;
17
18 import java.util.Enumeration  ;
19
20 import javax.servlet.http.Cookie ;
21 import javax.servlet.http.HttpServletRequest ;
22
23
40 public class CookieMap extends AbstractAttributeMap
41 {
42 private static final Cookie [] EMPTY_ARRAY = new Cookie [0];
43
44 final HttpServletRequest _httpServletRequest;
45
46 CookieMap(HttpServletRequest httpServletRequest)
47 {
48 _httpServletRequest = httpServletRequest;
49 }
50
51 public void clear()
52 {
53 throw new UnsupportedOperationException (
54 "Cannot clear HttpRequest Cookies");
55 }
56
57 public boolean containsKey(Object key)
58 {
59 Cookie [] cookies = _httpServletRequest.getCookies();
60 if (cookies == null) return false;
61 for (int i = 0, len = cookies.length; i < len; i++)
62 {
63 if (cookies[i].getName().equals(key))
64 {
65 return true;
66 }
67 }
68
69 return false;
70 }
71
72 public boolean containsValue(Object findValue)
73 {
74 if (findValue == null)
75 {
76 return false;
77 }
78
79 Cookie [] cookies = _httpServletRequest.getCookies();
80 if (cookies == null) return false;
81 for (int i = 0, len = cookies.length; i < len; i++)
82 {
83 if (findValue.equals(cookies[i].getValue()))
84 {
85 return true;
86 }
87 }
88
89 return false;
90 }
91
92 public boolean isEmpty()
93 {
94 Cookie [] cookies = _httpServletRequest.getCookies();
95 return cookies == null || cookies.length == 0;
96 }
97
98 public int size()
99 {
100 Cookie [] cookies = _httpServletRequest.getCookies();
101 return cookies == null ? 0 : cookies.length;
102 }
103
104 protected Object getAttribute(String key)
105 {
106 Cookie [] cookies = _httpServletRequest.getCookies();
107 if (cookies == null) return null;
108 for (int i = 0, len = cookies.length; i < len; i++)
109 {
110 if (cookies[i].getName().equals(key))
111 {
112 return cookies[i];
113 }
114 }
115
116 return null;
117 }
118
119 protected void setAttribute(String key, Object value)
120 {
121 throw new UnsupportedOperationException (
122 "Cannot set HttpRequest Cookies");
123 }
124
125 protected void removeAttribute(String key)
126 {
127 throw new UnsupportedOperationException (
128 "Cannot remove HttpRequest Cookies");
129 }
130
131 protected Enumeration getAttributeNames()
132 {
133 Cookie [] cookies = _httpServletRequest.getCookies();
134 if (cookies == null)
135 {
136 return new CookieNameEnumeration(EMPTY_ARRAY);
137 }
138 else
139 {
140 return new CookieNameEnumeration(cookies);
141 }
142 }
143
144 private static class CookieNameEnumeration implements Enumeration
145 {
146 private final Cookie [] _cookies;
147 private final int _length;
148 private int _index;
149
150 public CookieNameEnumeration(Cookie [] cookies)
151 {
152 _cookies = cookies;
153 _length = cookies.length;
154 }
155
156 public boolean hasMoreElements()
157 {
158 return _index < _length;
159 }
160
161 public Object nextElement()
162 {
163 return _cookies[_index++].getName();
164 }
165 }
166 }
167 |
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