Source Code Cross Referenced for TestJNDIContext.java in  » Wiki-Engine » JSPWiki » com » ecyrd » jspwiki » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Wiki Engine » JSPWiki » com.ecyrd.jspwiki 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package com.ecyrd.jspwiki;
002:
003:        import java.util.HashMap;
004:        import java.util.Hashtable;
005:        import java.util.Map;
006:
007:        import javax.naming.Context;
008:        import javax.naming.Name;
009:        import javax.naming.NameParser;
010:        import javax.naming.NamingEnumeration;
011:        import javax.naming.NamingException;
012:        import javax.naming.spi.InitialContextFactory;
013:
014:        /**
015:         * <p>Mock JNDI context that permits String names to be bound to objects. 
016:         * It is intended to simulate JNDI factories in web containers and
017:         * application servers, and provides only the bare minimum functions.
018:         * This class contains a static member InitialContextFactory class 
019:         * called Factory that installs a "root" instance of TestJNDIContext
020:         * as the initial context for the entire JVM. Additional contexts can 
021:         * be bound by supplying pairs of Strings and Objects using
022:         * {@link #bind(String, Object)}. Objects are looked up and retrieved 
023:         * using {@link #lookup(String)}. All other methods in this class no-op.</p>
024:         * <p>For example, simulating a JNDI DataSource requires us to first
025:         * establish an initial context of <code>java:comp/env</code>. Inside
026:         * the initial context, we bind our data source:</p>
027:         * <blockquote><code>Context initCtx = new InitialContext();<br/>
028:         * initCtx.bind( "java:comp/env", new TestJNDIContext() );<br/>
029:         * Context ctx = (Context)initCtx.lookup("java:comp/env");<br/>
030:         * DataSource ds = new TestJDBCDataSource();<br/>
031:         * ctx.bind( "jdbc/UserDatabase", ds);<br/>
032:         * </code></blockquote>
033:         * 
034:         * @author Andrew R. Jaquith
035:         * @since 2.3
036:         */
037:        public class TestJNDIContext implements  Context {
038:
039:            private final Map m_bindings = new HashMap();
040:
041:            private static boolean initialized = false;
042:
043:            /**
044:             * InitialContextFactory class that configures the JVM to
045:             * always return a particular TestJNDIContext.
046:             * @author Andrew R. Jaquith
047:             */
048:            public static class Factory implements  InitialContextFactory {
049:
050:                private static Context ctx = null;
051:
052:                public Context getInitialContext(Hashtable environment)
053:                        throws NamingException {
054:                    return ctx;
055:                }
056:
057:                protected static void setContext(Context context) {
058:                    if (ctx == null) {
059:                        ctx = context;
060:                    }
061:                }
062:            }
063:
064:            /**
065:             * Constructs a new mock JNDI context. Note that the instance has no
066:             * relationship to the JVM's initial context <em>per se</em>.
067:             * To configure the JVM so that it always returns a TestJNDIContext
068:             * instance, see {@link #initialize()}.
069:             */
070:            public TestJNDIContext() {
071:            }
072:
073:            /**
074:             * Static factory method that creates a new TestJNDIContext and 
075:             * configures the JVM so that the <code>new InitialContext()</code>
076:             * always returns this context.
077:             */
078:            public static void initialize() {
079:                if (!initialized) {
080:                    System.setProperty(Context.INITIAL_CONTEXT_FACTORY,
081:                            Factory.class.getName());
082:                    Factory.setContext(new TestJNDIContext());
083:                    initialized = true;
084:                }
085:            }
086:
087:            /**
088:             * No-op; always returns <code>null</code>.
089:             * @see javax.naming.Context#addToEnvironment(java.lang.String, java.lang.Object)
090:             */
091:            public Object addToEnvironment(String propName, Object propVal)
092:                    throws NamingException {
093:                return null;
094:            }
095:
096:            /**
097:             * No-op.
098:             * @see javax.naming.Context#bind(javax.naming.Name, java.lang.Object)
099:             */
100:            public void bind(Name name, Object obj) throws NamingException {
101:            }
102:
103:            /**
104:             * No-op.
105:             * @see javax.naming.Context#close()
106:             */
107:            public void close() throws NamingException {
108:            }
109:
110:            /**
111:             * No-op; always returns <code>null</code>.
112:             * @see javax.naming.Context#composeName(javax.naming.Name, javax.naming.Name)
113:             */
114:            public Name composeName(Name name, Name prefix)
115:                    throws NamingException {
116:                return null;
117:            }
118:
119:            /**
120:             * No-op; always returns <code>null</code>.
121:             * @see javax.naming.Context#composeName(java.lang.String, java.lang.String)
122:             */
123:            public String composeName(String name, String prefix)
124:                    throws NamingException {
125:                return null;
126:            }
127:
128:            /**
129:             * No-op; always returns <code>null</code>.
130:             * @see javax.naming.Context#createSubcontext(javax.naming.Name)
131:             */
132:            public Context createSubcontext(Name name) throws NamingException {
133:                return null;
134:            }
135:
136:            /**
137:             * No-op; always returns <code>null</code>.
138:             * @see javax.naming.Context#createSubcontext(java.lang.String)
139:             */
140:            public Context createSubcontext(String name) throws NamingException {
141:                return null;
142:            }
143:
144:            /**
145:             * No-op.
146:             * @see javax.naming.Context#destroySubcontext(javax.naming.Name)
147:             */
148:            public void destroySubcontext(Name name) throws NamingException {
149:            }
150:
151:            /**
152:             * No-op.
153:             * @see javax.naming.Context#destroySubcontext(java.lang.String)
154:             */
155:            public void destroySubcontext(String name) throws NamingException {
156:            }
157:
158:            /**
159:             * No-op; always returns <code>null</code>.
160:             * @see javax.naming.Context#getEnvironment()
161:             */
162:            public Hashtable getEnvironment() throws NamingException {
163:                // TODO Auto-generated method stub
164:                return null;
165:            }
166:
167:            /**
168:             * No-op; always returns <code>null</code>.
169:             * @see javax.naming.Context#getNameInNamespace()
170:             */
171:            public String getNameInNamespace() throws NamingException {
172:                return null;
173:            }
174:
175:            /**
176:             * No-op; always returns <code>null</code>.
177:             * @see javax.naming.Context#getNameParser(javax.naming.Name)
178:             */
179:            public NameParser getNameParser(Name name) throws NamingException {
180:                return null;
181:            }
182:
183:            /**
184:             * No-op; always returns <code>null</code>.
185:             * @see javax.naming.Context#getNameParser(java.lang.String)
186:             */
187:            public NameParser getNameParser(String name) throws NamingException {
188:                return null;
189:            }
190:
191:            /**
192:             * No-op; always returns <code>null</code>.
193:             * @see javax.naming.Context#list(javax.naming.Name)
194:             */
195:            public NamingEnumeration list(Name name) throws NamingException {
196:                return null;
197:            }
198:
199:            /**
200:             * No-op; always returns <code>null</code>.
201:             * @see javax.naming.Context#list(java.lang.String)
202:             */
203:            public NamingEnumeration list(String name) throws NamingException {
204:                return null;
205:            }
206:
207:            /**
208:             * No-op; always returns <code>null</code>.
209:             * @see javax.naming.Context#listBindings(javax.naming.Name)
210:             */
211:            public NamingEnumeration listBindings(Name name)
212:                    throws NamingException {
213:                return null;
214:            }
215:
216:            /**
217:             * No-op; always returns <code>null</code>.
218:             * @see javax.naming.Context#listBindings(java.lang.String)
219:             */
220:            public NamingEnumeration listBindings(String name)
221:                    throws NamingException {
222:                return null;
223:            }
224:
225:            /**
226:             * No-op; always returns <code>null</code>.
227:             * @see javax.naming.Context#lookup(javax.naming.Name)
228:             */
229:            public Object lookup(Name name) throws NamingException {
230:                return null;
231:            }
232:
233:            /**
234:             * Binds an object to a supplied String key.
235:             * @see javax.naming.InitialContext#bind(java.lang.String, java.lang.Object)
236:             */
237:            public void bind(String name, Object obj) throws NamingException {
238:                m_bindings.put(name, obj);
239:            }
240:
241:            /**
242:             * Retrieves an object using a String key. If not found, 
243:             * throws a NamingException.
244:             * @see javax.naming.InitialContext#lookup(java.lang.String)
245:             */
246:            public Object lookup(String name) throws NamingException {
247:                Object obj = m_bindings.get(name);
248:                if (obj == null) {
249:                    throw new NamingException("Object named '" + name
250:                            + "' not found in JNDI context.");
251:                }
252:                return obj;
253:            }
254:
255:            /**
256:             * No-op; always returns <code>null</code>.
257:             * @see javax.naming.Context#lookupLink(javax.naming.Name)
258:             */
259:            public Object lookupLink(Name name) throws NamingException {
260:                return null;
261:            }
262:
263:            /**
264:             * No-op; always returns <code>null</code>.
265:             * @see javax.naming.Context#lookupLink(java.lang.String)
266:             */
267:            public Object lookupLink(String name) throws NamingException {
268:                return null;
269:            }
270:
271:            /**
272:             * No-op.
273:             * @see javax.naming.Context#rebind(javax.naming.Name, java.lang.Object)
274:             */
275:            public void rebind(Name name, Object obj) throws NamingException {
276:            }
277:
278:            /**
279:             * No-op.
280:             * @see javax.naming.Context#rebind(java.lang.String, java.lang.Object)
281:             */
282:            public void rebind(String name, Object obj) throws NamingException {
283:            }
284:
285:            /**
286:             * No-op; always returns <code>null</code>.
287:             * @see javax.naming.Context#removeFromEnvironment(java.lang.String)
288:             */
289:            public Object removeFromEnvironment(String propName)
290:                    throws NamingException {
291:                return null;
292:            }
293:
294:            /**
295:             * No-op.
296:             * @see javax.naming.Context#rename(javax.naming.Name, javax.naming.Name)
297:             */
298:            public void rename(Name oldName, Name newName)
299:                    throws NamingException {
300:            }
301:
302:            /**
303:             * No-op.
304:             * @see javax.naming.Context#rename(java.lang.String, java.lang.String)
305:             */
306:            public void rename(String oldName, String newName)
307:                    throws NamingException {
308:            }
309:
310:            /**
311:             * No-op.
312:             * @see javax.naming.Context#unbind(javax.naming.Name)
313:             */
314:            public void unbind(Name name) throws NamingException {
315:            }
316:
317:            /**
318:             * No-op.
319:             * @see javax.naming.Context#unbind(java.lang.String)
320:             */
321:            public void unbind(String name) throws NamingException {
322:            }
323:        }
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