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1
16 package org.apache.commons.chain.web.portlet;
17
18
19 import java.util.ArrayList  ;
20 import java.util.Collection ;
21 import java.util.Enumeration ;
22 import java.util.HashSet ;
23 import java.util.Iterator ;
24 import java.util.List ;
25 import java.util.Map ;
26 import java.util.Set ;
27 import javax.portlet.PortletContext;
28
29
30
37
38 final class PortletInitParamMap implements Map {
39
40
41 public PortletInitParamMap(PortletContext context) {
42 this.context = context;
43 }
44
45
46 private PortletContext context = null;
47
48
49 public void clear() {
50 throw new UnsupportedOperationException ();
51 }
52
53
54 public boolean containsKey(Object key) {
55 return (context.getInitParameter(key(key)) != null);
56 }
57
58
59 public boolean containsValue(Object value) {
60 Iterator values = values().iterator();
61 while (values.hasNext()) {
62 if (value.equals(values.next())) {
63 return (true);
64 }
65 }
66 return (false);
67 }
68
69
70 public Set entrySet() {
71 Set set = new HashSet ();
72 Enumeration keys = context.getInitParameterNames();
73 while (keys.hasMoreElements()) {
74 set.add(context.getInitParameter((String ) keys.nextElement()));
75 }
76 return (set);
77 }
78
79
80 public boolean equals(Object o) {
81 return (context.equals(o));
82 }
83
84
85 public Object get(Object key) {
86 return (context.getInitParameter(key(key)));
87 }
88
89
90 public int hashCode() {
91 return (context.hashCode());
92 }
93
94
95 public boolean isEmpty() {
96 return (size() < 1);
97 }
98
99
100 public Set keySet() {
101 Set set = new HashSet ();
102 Enumeration keys = context.getInitParameterNames();
103 while (keys.hasMoreElements()) {
104 set.add(keys.nextElement());
105 }
106 return (set);
107 }
108
109
110 public Object put(Object key, Object value) {
111 throw new UnsupportedOperationException ();
112 }
113
114
115 public void putAll(Map map) {
116 throw new UnsupportedOperationException ();
117 }
118
119
120 public Object remove(Object key) {
121 throw new UnsupportedOperationException ();
122 }
123
124
125 public int size() {
126 int n = 0;
127 Enumeration keys = context.getInitParameterNames();
128 while (keys.hasMoreElements()) {
129 keys.nextElement();
130 n++;
131 }
132 return (n);
133 }
134
135
136 public Collection values() {
137 List list = new ArrayList ();
138 Enumeration keys = context.getInitParameterNames();
139 while (keys.hasMoreElements()) {
140 list.add(context.getInitParameter((String ) keys.nextElement()));
141 }
142 return (list);
143 }
144
145
146 private String key(Object key) {
147 if (key == null) {
148 throw new IllegalArgumentException ();
149 } else if (key instanceof String ) {
150 return ((String ) key);
151 } else {
152 return (key.toString());
153 }
154 }
155
156
157 }
158 |
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