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1
29
30 package com.caucho.loader;
31
32 import java.util.Collection  ;
33 import java.util.Enumeration ;
34 import java.util.Properties ;
35 import java.util.Set ;
36
37
42 public class EnvironmentProperties extends Properties {
43 private static Properties _origSystemProperties;
44 private static Properties _envSystemProperties;
45
46 private transient EnvironmentLocal<Properties > _envProps
47 = new EnvironmentLocal<Properties >();
48
49 private Properties _global;
50
51 public EnvironmentProperties(Properties global)
52 {
53 _global = global;
54 }
55
56 public EnvironmentProperties()
57 {
58 this(new Properties ());
59 }
60
61 public static void enableEnvironmentSystemProperties(boolean isEnable)
62 {
63 if (_origSystemProperties == null) {
64 _origSystemProperties = System.getProperties();
65 _envSystemProperties = new EnvironmentProperties(_origSystemProperties);
66 }
67
68 if (isEnable)
69 System.setProperties(_envSystemProperties);
70 else
71 System.setProperties(_origSystemProperties);
72 }
73
74 public Properties getGlobalProperties()
75 {
76 return _global;
77 }
78
79 public void setGlobalProperties(Properties global)
80 {
81 _global = global;
82 }
83
84 public int size()
85 {
86 return getEnvironmentProperties().size();
87 }
88
89 public boolean isEmpty()
90 {
91 return getEnvironmentProperties().isEmpty();
92 }
93
94 public Enumeration keys()
95 {
96 return getEnvironmentProperties().keys();
97 }
98
99 public Enumeration elements()
100 {
101 return getEnvironmentProperties().elements();
102 }
103
104 public boolean contains(Object value)
105 {
106 return getEnvironmentProperties().contains(value);
107 }
108
109 public boolean containsValue(Object value)
110 {
111 return getEnvironmentProperties().containsValue(value);
112 }
113
114 public boolean containsKey(Object value)
115 {
116 return getEnvironmentProperties().containsKey(value);
117 }
118
119 public Object get(String key)
120 {
121 Properties props = getEnvironmentProperties();
122
123 String value = props.getProperty(key);
124
125 if (value != null)
126 return value;
127 else
128 return _global.get(key);
129 }
130
131 public Object get(Object key)
132 {
133 return get((String ) key);
134 }
135
136 public String getProperty(String key)
137 {
138 Properties props = getEnvironmentProperties();
139
140 String value = props.getProperty(key);
141
142 if (value != null)
143 return value;
144 else
145 return _global.getProperty(key);
146 }
147
148 public String getProperty(String key, String defaultValue)
149 {
150 Properties props = getEnvironmentProperties();
151
152 String value = props.getProperty(key);
153
154 if (value != null)
155 return value;
156 else
157 return _global.getProperty(key, defaultValue);
158 }
159
160 public Enumeration propertyNames()
161 {
162 return getEnvironmentProperties().propertyNames();
163 }
164
165 public String put(String key, String value)
166 {
167 return (String ) getPutEnvironmentProperties().put(key, value);
168 }
169
170 public Object setProperty(String key, String value)
171 {
172 return put(key, value);
173 }
174
175 public Object put(Object key, Object value)
176 {
177 return getPutEnvironmentProperties().put(key, value);
178 }
179
180 public String remove(Object key)
181 {
182 return (String ) getPutEnvironmentProperties().remove(key);
183 }
184
185
191
192 public void clear()
193 {
194 getPutEnvironmentProperties().clear();
195 }
196
197 public Object clone()
198 {
199 return getEnvironmentProperties().clone();
200 }
201
202 public String toString()
203 {
204 return getEnvironmentProperties().toString();
205 }
206
207 public Set keySet()
208 {
209 return getPutEnvironmentProperties().keySet();
210 }
211
212 public Set entrySet()
213 {
214 return getPutEnvironmentProperties().entrySet();
215 }
216
217 public Collection values()
218 {
219 return getPutEnvironmentProperties().values();
220 }
221
222 public boolean equals(Object o)
223 {
224 return getEnvironmentProperties().equals(o);
225 }
226
227 public int hashCode()
228 {
229 return getEnvironmentProperties().hashCode();
230 }
231
232 private Properties getEnvironmentProperties()
233 {
234 Properties props = _envProps.get();
235
236 if (props != null)
237 return props;
238 else
239 return _global;
240 }
241
242 private synchronized Properties getPutEnvironmentProperties()
243 {
244 Properties props = _envProps.getLevel();
245
246 if (props == null) {
247 props = new Properties ();
248 Properties parentProps = _envProps.get();
249 if (parentProps == null)
250 parentProps = _global;
251
252 props.putAll(parentProps);
253
254 _envProps.set(props);
255
256 return props;
257 }
258 else
259 return props;
260 }
261
262 public Object writeReplace() throws java.io.ObjectStreamException
263 {
264 return getEnvironmentProperties();
265 }
266 }
267 |
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