Source Code Cross Referenced for ReflectionUtilsBean.java in  » Testing » DDSteps » org » ddsteps » mock » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Testing » DDSteps » org.ddsteps.mock 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* ReflectionUtilsBean.java
002:         * 
003:         * DDSteps - Data Driven JUnit Test Steps
004:         * Copyright (C) 2005 Jayway AB
005:         * 
006:         * This library is free software; you can redistribute it and/or
007:         * modify it under the terms of the GNU Lesser General Public
008:         * License version 2.1 as published by the Free Software Foundation.
009:         * 
010:         * This library is distributed in the hope that it will be useful,
011:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
012:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013:         * Lesser General Public License for more details.
014:         * 
015:         * You should have received a copy of the GNU Lesser General Public
016:         * License along with this library; if not, visit 
017:         * http://www.opensource.org/licenses/lgpl-license.php
018:         */
019:        package org.ddsteps.mock;
020:
021:        import java.lang.reflect.Method;
022:        import java.lang.reflect.Modifier;
023:        import java.util.Arrays;
024:        import java.util.HashSet;
025:        import java.util.Set;
026:
027:        import org.apache.commons.lang.ArrayUtils;
028:        import org.apache.commons.lang.ObjectUtils;
029:        import org.apache.commons.lang.StringUtils;
030:        import org.apache.commons.lang.Validate;
031:        import org.apache.commons.logging.Log;
032:        import org.apache.commons.logging.LogFactory;
033:
034:        /**
035:         * Static utilities for working with classes and methods.
036:         * 
037:         * @author adam
038:         * @version $Id: ReflectionUtilsBean.java,v 1.1 2005/12/03 12:51:40 adamskogman Exp $
039:         */
040:        public class ReflectionUtilsBean implements  ReflectionUtils {
041:
042:            private static final Log LOG = LogFactory
043:                    .getLog(MockUtilsBean.class);
044:
045:            /**
046:             * No-args.
047:             */
048:            public ReflectionUtilsBean() {
049:                super ();
050:            }
051:
052:            /** TODO Comment
053:             * @see org.ddsteps.mock.ReflectionUtils#findAllImplementedMethods(java.lang.Class)
054:             */
055:            public Set findAllImplementedMethods(final Class clazz) {
056:
057:                Set methodSet = new HashSet();
058:                Class currentClass = clazz;
059:
060:                // Object has superclass null
061:                while (currentClass != null) {
062:
063:                    // Get methods
064:                    Method[] methods = currentClass.getDeclaredMethods();
065:
066:                    // Add any abstract methods
067:                    for (int i = 0; i < methods.length; i++) {
068:                        Method method = methods[i];
069:
070:                        // not abstract? Add it!
071:                        if ((method.getModifiers() & Modifier.ABSTRACT) == 0) {
072:                            methodSet.add(method);
073:                        }
074:
075:                    }
076:
077:                    // move on to superclass
078:                    currentClass = currentClass.getSuperclass();
079:                }
080:
081:                return methodSet;
082:            }
083:
084:            /** TODO Comment
085:             * @see org.ddsteps.mock.ReflectionUtils#findAllMethodsInSuperclasses(java.lang.Class)
086:             */
087:            public Set findAllMethodsInSuperclasses(final Class clazz) {
088:                return findAllMethods(clazz.getSuperclass());
089:            }
090:
091:            /** TODO Comment
092:             * @see org.ddsteps.mock.ReflectionUtils#findInterfaceMethods(java.lang.Class)
093:             */
094:            public Set findInterfaceMethods(final Class clazz) {
095:
096:                Set methodSet = new HashSet();
097:                Class currentClass = clazz;
098:
099:                // Object has superclass null
100:                while (currentClass != null) {
101:
102:                    // Get methods
103:                    Class[] interfaces = currentClass.getInterfaces();
104:
105:                    for (int i = 0; i < interfaces.length; i++) {
106:                        Class face = interfaces[i];
107:
108:                        // Add all methods in the interface
109:                        methodSet.addAll(Arrays.asList(face.getMethods()));
110:                    }
111:
112:                    // move on to superclass
113:                    currentClass = currentClass.getSuperclass();
114:                }
115:
116:                return methodSet;
117:            }
118:
119:            // /**
120:            // * Find ALL interfaces supported by this class.
121:            // *
122:            // * @param clazz A class, not an interface.
123:            // * @return (link Set) of (@link Class)
124:            // */
125:            // public Set findAllInterfaces(Class clazz) {
126:            //
127:            // Set interfaceSet = new HashSet();
128:            //
129:            // Class[] implementedInterfaces = clazz.getInterfaces();
130:            //
131:            // if (implementedInterfaces == null || implementedInterfaces.length == 0) {
132:            // // fail fast
133:            // return interfaceSet;
134:            // }
135:            //
136:            // // Add root interfaces to work list
137:            // LinkedList workList = new LinkedList(Arrays.asList(implementedInterfaces));
138:            //
139:            // // Work until list is empty
140:            // while (!workList.isEmpty()) {
141:            //
142:            // Class face = (Class) workList.removeFirst();
143:            //            
144:            // // Add to set of handled interfaces
145:            // if (interfaceSet.add(face)) {
146:            // // New interface, process
147:            // }
148:            //
149:            // }
150:            //
151:            // return interfaceSet;
152:            //
153:            // }
154:
155:            /** TODO Comment
156:             * @see org.ddsteps.mock.ReflectionUtils#findAllAbstractMethods(java.lang.Class)
157:             */
158:            public Set findAllAbstractMethods(final Class clazz) {
159:
160:                Set methodSet = new HashSet();
161:                Class currentClass = clazz;
162:
163:                // Object has superclass null
164:                while (currentClass != null) {
165:
166:                    // Get methods
167:                    Method[] methods = currentClass.getDeclaredMethods();
168:
169:                    // Add any abstract methods
170:                    for (int i = 0; i < methods.length; i++) {
171:                        Method method = methods[i];
172:
173:                        // abstract
174:                        if ((method.getModifiers() & Modifier.ABSTRACT) > 0) {
175:                            methodSet.add(method);
176:                        }
177:
178:                    }
179:
180:                    // move on to superclass
181:                    currentClass = currentClass.getSuperclass();
182:                }
183:
184:                return methodSet;
185:            }
186:
187:            /** TODO Comment
188:             * @see org.ddsteps.mock.ReflectionUtils#findLocalImplementedMethods(java.lang.Class)
189:             */
190:            public Set findLocalImplementedMethods(final Class clazz) {
191:
192:                Set methodSet = new HashSet();
193:
194:                // Get methods
195:                Method[] methods = clazz.getDeclaredMethods();
196:
197:                // Add any NON abstract methods
198:                for (int i = 0; i < methods.length; i++) {
199:                    Method method = methods[i];
200:
201:                    // not abstract
202:                    if ((method.getModifiers() & Modifier.ABSTRACT) == 0) {
203:                        methodSet.add(method);
204:                    }
205:
206:                }
207:
208:                return methodSet;
209:            }
210:
211:            /** TODO Comment
212:             * @see org.ddsteps.mock.ReflectionUtils#findMethodByName(java.lang.Class, java.lang.String)
213:             */
214:            public Method findMethodByName(Class clazz, String methodName)
215:                    throws NoSuchMethodException {
216:
217:                Method[] methods = clazz.getDeclaredMethods();
218:
219:                // Add all methods
220:                for (int i = 0; i < methods.length; i++) {
221:                    Method method = methods[i];
222:
223:                    if (StringUtils.equals(method.getName(), methodName)) {
224:
225:                        if (LOG.isInfoEnabled()) {
226:                            LOG.info("Not mocking method. (Method = " + method
227:                                    + ")");
228:                        }
229:
230:                        return method;
231:                    }
232:
233:                }
234:
235:                throw new NoSuchMethodException("Method '" + methodName
236:                        + "' not found in class '" + clazz.getName() + "'");
237:
238:            }
239:
240:            /** TODO Comment
241:             * @see org.ddsteps.mock.ReflectionUtils#findAllMethods(java.lang.Class)
242:             */
243:            public Set findAllMethods(final Class clazz) {
244:
245:                Set methodSet = new HashSet();
246:                Class currentClass = clazz;
247:
248:                // Object has superclass null
249:                while (currentClass != null) {
250:
251:                    // Get methods (never null)
252:                    Method[] methods = currentClass.getDeclaredMethods();
253:
254:                    // Add all methods
255:                    methodSet.addAll(Arrays.asList(methods));
256:
257:                    // move on to superclass
258:                    currentClass = currentClass.getSuperclass();
259:                }
260:
261:                return methodSet;
262:            }
263:
264:            /** TODO Comment
265:             * @see org.ddsteps.mock.ReflectionUtils#isFinal(java.lang.reflect.Method)
266:             */
267:            public boolean isFinal(Method method) {
268:                Validate.notNull(method, "Argument method must not be null");
269:
270:                return (method.getModifiers() & Modifier.FINAL) > 0;
271:            }
272:
273:            /** TODO Comment
274:             * @see org.ddsteps.mock.ReflectionUtils#isNative(java.lang.reflect.Method)
275:             */
276:            public boolean isNative(Method method) {
277:                Validate.notNull(method, "Argument method must not be null");
278:
279:                return (method.getModifiers() & Modifier.NATIVE) > 0;
280:            }
281:
282:            /** TODO Comment
283:             * @see org.ddsteps.mock.ReflectionUtils#isOverride(java.lang.reflect.Method, java.lang.reflect.Method)
284:             */
285:            public boolean isOverride(Method possibleOverride, Method reference) {
286:
287:                return StringUtils.equals(possibleOverride.getName(), reference
288:                        .getName())
289:                        && ArrayUtils.isEquals(possibleOverride
290:                                .getParameterTypes(), reference
291:                                .getParameterTypes())
292:                        && ObjectUtils.equals(possibleOverride.getReturnType(),
293:                                reference.getReturnType());
294:
295:            }
296:
297:        }
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