Source Code Cross Referenced for MemberInvocation.java in  » Web-Server » JicarillaHTTP » org » jicarilla » container » tck » util » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Server » JicarillaHTTP » org.jicarilla.container.tck.util 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* ====================================================================
002:        The Jicarilla Software License
003:
004:        Copyright (c) 2003 Leo Simons.
005:        All rights reserved.
006:
007:        Permission is hereby granted, free of charge, to any person obtaining
008:        a copy of this software and associated documentation files (the
009:        "Software"), to deal in the Software without restriction, including
010:        without limitation the rights to use, copy, modify, merge, publish,
011:        distribute, sublicense, and/or sell copies of the Software, and to
012:        permit persons to whom the Software is furnished to do so, subject to
013:        the following conditions:
014:
015:        The above copyright notice and this permission notice shall be
016:        included in all copies or substantial portions of the Software.
017:
018:        THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
019:        EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
020:        MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
021:        IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
022:        CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
023:        TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
024:        SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
025:        ==================================================================== */
026:        package org.jicarilla.container.tck.util;
027:
028:        import java.lang.reflect.Member;
029:        import java.util.HashMap;
030:        import java.util.Map;
031:
032:        /**
033:         * 
034:         *
035:         * @author <a href="lsimons at jicarilla dot org">Leo Simons</a>
036:         * @version $Id: MemberInvocation.java,v 1.2 2004/03/23 13:37:54 lsimons Exp $
037:         */
038:        public class MemberInvocation {
039:            // ----------------------------------------------------------------------
040:            //  Properties
041:            // ----------------------------------------------------------------------
042:
043:            protected Object m_proxy;
044:            protected Object m_target;
045:            protected Member m_member;
046:            protected Object[] m_args;
047:            protected Object m_result;
048:            protected Throwable m_throwable;
049:
050:            protected Map m_invocationContext;
051:
052:            // ----------------------------------------------------------------------
053:            //  Constructors
054:            // ----------------------------------------------------------------------
055:
056:            /**
057:             * Create an empty invocation instance.
058:             */
059:            public MemberInvocation() {
060:                m_invocationContext = new HashMap();
061:            }
062:
063:            /**
064:             * Create a fully populated invocation instance.
065:             *
066:             * @param target the actual recipient of the invocation
067:             * @param proxy the proxy around the target
068:             * @param method the method to call on the target
069:             * @param args the arguments to the method
070:             */
071:            public MemberInvocation(final Object target, final Object proxy,
072:                    final Member method, final Object[] args) {
073:                this ();
074:                m_target = target;
075:                m_proxy = proxy;
076:                m_member = method;
077:                m_args = args;
078:            }
079:
080:            // ----------------------------------------------------------------------
081:            //  Members
082:            // ----------------------------------------------------------------------
083:
084:            /**
085:             * Recycle the invocation.
086:             *
087:             * @see org.jicarilla.lang.Recyclable#recycle()
088:             */
089:            public final void recycle() {
090:                m_target = null;
091:                m_proxy = null;
092:                m_member = null;
093:                m_args = null;
094:                m_result = null;
095:                m_throwable = null;
096:
097:                if (m_invocationContext != null) {
098:                    try {
099:                        m_invocationContext.clear();
100:                    } catch (UnsupportedOperationException uoe) {
101:                        m_invocationContext = new HashMap();
102:                    }
103:                } else {
104:                    m_invocationContext = new HashMap();
105:                }
106:            }
107:
108:            /**
109:             * Get the proxy around the target.
110:             *
111:             * @return the proxy
112:             */
113:            public final Object getProxy() {
114:                return m_proxy;
115:            }
116:
117:            /**
118:             * Set the proxy around the target.
119:             *
120:             * @param proxy the proxy
121:             */
122:            public final void setProxy(final Object proxy) {
123:                m_proxy = proxy;
124:            }
125:
126:            /**
127:             * Get the recipient of the invocation.
128:             *
129:             * @return the recipient
130:             */
131:            public final Object getTarget() {
132:                return m_target;
133:            }
134:
135:            /**
136:             * Set the recipient of the invocation.
137:             *
138:             * @param target the recipient
139:             */
140:            public final void setTarget(final Object target) {
141:                m_target = target;
142:            }
143:
144:            /**
145:             * Get the method to invoke on the recipient.
146:             *
147:             * @return the method to invoke
148:             */
149:            public final Member getMember() {
150:                return m_member;
151:            }
152:
153:            /**
154:             * Set the method to invoke on the recipient.
155:             *
156:             * @param method the method to invoke
157:             */
158:            public final void setMember(final Member method) {
159:                m_member = method;
160:            }
161:
162:            /**
163:             * Get the arguments to the method.
164:             *
165:             * @return the arguments
166:             */
167:            public final Object[] getArgs() {
168:                return m_args;
169:            }
170:
171:            /**
172:             * Set the arguments to the method.
173:             *
174:             * @param args the arguments
175:             */
176:            public final void setArgs(final Object[] args) {
177:                m_args = args;
178:            }
179:
180:            /**
181:             * Get the result of the invocation.
182:             *
183:             * @return the result
184:             */
185:            public final Object getResult() {
186:                return m_result;
187:            }
188:
189:            /**
190:             * Set the result of the invocation.
191:             *
192:             * @param result the result
193:             */
194:            public final void setResult(final Object result) {
195:                m_result = result;
196:            }
197:
198:            /**
199:             * Get the exception or error caused by the invocation.
200:             *
201:             * @return the exception or error
202:             */
203:            public final Throwable getThrowable() {
204:                return m_throwable;
205:            }
206:
207:            /**
208:             * Set the exception or error caused by the invocation.
209:             *
210:             * @param throwable the exception or error
211:             */
212:            public final void setThrowable(final Throwable throwable) {
213:                m_throwable = throwable;
214:            }
215:
216:            /**
217:             * Get the map of arbitrary values associated with this invocation, the
218:             * invocation context.
219:             *
220:             * @return the map containing the invocation context
221:             */
222:            public final Map getInvocationContext() {
223:                return m_invocationContext;
224:            }
225:
226:            /**
227:             * Set the map of arbitrary values associated with this invocation, the
228:             * invocation context.
229:             *
230:             * @param invocationContext the map containing the invocation context
231:             */
232:            public final void setInvocationContext(final Map invocationContext) {
233:                m_invocationContext = invocationContext;
234:            }
235:
236:            // ----------------------------------------------------------------------
237:            //  equals, hashcode, clone
238:            // ----------------------------------------------------------------------
239:
240:            /**
241:             * Compares objects for equality.
242:             *
243:             * @param object the object to test against this one
244:             *
245:             * @return true if the two objects are equal, false otherwise
246:             * @see java.lang.Object#equals(Object)
247:             */
248:            public boolean equals(final Object object) {
249:                if (object == null) {
250:                    return false;
251:                }
252:                if (super .equals(object)) {
253:                    return true;
254:                }
255:
256:                if (!(object instanceof  MemberInvocation)) {
257:                    return false;
258:                }
259:
260:                final MemberInvocation other = (MemberInvocation) object;
261:
262:                if (equalField(this .getArgs(), other.getArgs())
263:                        && equalField(this .getInvocationContext(), other
264:                                .getInvocationContext())
265:                        && equalField(this .getMember(), other.getMember())
266:                        && equalField(this .getProxy(), other.getProxy())
267:                        && equalField(this .getResult(), other.getResult())
268:                        && equalField(this .getTarget(), other.getTarget())
269:                        && equalField(this .getThrowable(), other.getThrowable())) {
270:                    return true;
271:                }
272:
273:                return false;
274:            }
275:
276:            /**
277:             * Test whether two fields are the same. A helper method for equals().
278:             *
279:             * @param thisF the first field to test
280:             * @param otherF the second field to test
281:             *
282:             * @return true if the arguments are equal, false otherwise
283:             */
284:            protected boolean equalField(final Object this F, final Object otherF) {
285:                if (otherF == null) {
286:                    if (this F != null) {
287:                        return false;
288:                    }
289:                } else {
290:                    if (this F == null) {
291:                        return false;
292:                    }
293:                    if (!this F.equals(otherF)) {
294:                        return false;
295:                    }
296:                }
297:                return true;
298:            }
299:
300:            /**
301:             * Return a code for placing the invocation in a hash.
302:             *
303:             * @return a code hash for use in hash mapping
304:             * @see Object#hashCode()
305:             */
306:            public int hashCode() {
307:                int code = 0;
308:
309:                if (m_proxy != null) {
310:                    code = m_proxy.hashCode();
311:                }
312:                if (m_target != null) {
313:                    code = code | m_proxy.hashCode();
314:                }
315:                if (m_member != null) {
316:                    code = code | m_member.hashCode();
317:                }
318:                if (m_args != null) {
319:                    code = code | m_args.hashCode();
320:                }
321:                if (m_result != null) {
322:                    code = code | m_result.hashCode();
323:                }
324:                if (m_throwable != null) {
325:                    code = code | m_throwable.hashCode();
326:                }
327:
328:                return code;
329:            }
330:        }
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