Source Code Cross Referenced for Utilities.java in  » ERP-CRM-Financial » Kuali-Financial-System » edu » iu » uis » eden » util » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » ERP CRM Financial » Kuali Financial System » edu.iu.uis.eden.util 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2005-2006 The Kuali Foundation.
003:         * 
004:         * 
005:         * Licensed under the Educational Community License, Version 1.0 (the "License");
006:         * you may not use this file except in compliance with the License.
007:         * You may obtain a copy of the License at
008:         * 
009:         * http://www.opensource.org/licenses/ecl1.php
010:         * 
011:         * Unless required by applicable law or agreed to in writing, software
012:         * distributed under the License is distributed on an "AS IS" BASIS,
013:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         * See the License for the specific language governing permissions and
015:         * limitations under the License.
016:         */
017:        package edu.iu.uis.eden.util;
018:
019:        import java.io.PrintWriter;
020:        import java.io.StringWriter;
021:        import java.net.InetAddress;
022:        import java.net.UnknownHostException;
023:        import java.sql.Timestamp;
024:        import java.util.ArrayList;
025:        import java.util.Calendar;
026:        import java.util.Collection;
027:        import java.util.Collections;
028:        import java.util.Comparator;
029:        import java.util.Date;
030:        import java.util.HashSet;
031:        import java.util.List;
032:        import java.util.Set;
033:
034:        import org.apache.commons.lang.text.StrSubstitutor;
035:
036:        import edu.iu.uis.eden.EdenConstants;
037:        import edu.iu.uis.eden.KEWServiceLocator;
038:        import edu.iu.uis.eden.actionrequests.ActionRequestValue;
039:        import edu.iu.uis.eden.applicationconstants.ApplicationConstant;
040:        import edu.iu.uis.eden.exception.WorkflowRuntimeException;
041:        import edu.iu.uis.eden.user.WorkflowUser;
042:
043:        /**
044:         * Various static utility methods.
045:         *
046:         * @author bmcgough
047:         * @author rkirkend
048:         * @author ewestfal
049:         * @author ahamid
050:         */
051:        public class Utilities {
052:            /**
053:             * Commons-Lang StrSubstitor which substitutes variables specified like ${name} in strings,
054:             * using a lookup implementation that pulls variables from the core config
055:             */
056:            private static StrSubstitutor substitutor = new StrSubstitutor(
057:                    new ConfigStringLookup());
058:
059:            /**
060:             * Performs variable substitution on the specified string, replacing variables specified like ${name}
061:             * with the value of the corresponding config parameter obtained from the current context Config object
062:             * @param string the string on which to perform variable substitution
063:             * @return a string with any variables substituted with configuration parameter values
064:             */
065:            public static String substituteConfigParameters(String string) {
066:                return substitutor.replace(string);
067:            }
068:
069:            public static String getApplicationConstant(String name) {
070:                ApplicationConstant constant = KEWServiceLocator
071:                        .getApplicationConstantsService().findByName(name);
072:                if (constant == null) {
073:                    return null;
074:                }
075:                return constant.getApplicationConstantValue();
076:            }
077:
078:            public static boolean getBooleanConstant(String name,
079:                    boolean defaultValue) {
080:                String value = getApplicationConstant(name);
081:                if (value == null) {
082:                    return defaultValue;
083:                }
084:                return Boolean.valueOf(value);
085:            }
086:
087:            public static boolean isEmpty(String value) {
088:                return value == null || value.trim().equals("");
089:            }
090:
091:            public static boolean isEmpty(Collection collection) {
092:                return collection == null || collection.isEmpty();
093:            }
094:
095:            public static boolean isEmpty(Object[] array) {
096:                return array == null || array.length == 0;
097:            }
098:
099:            public static boolean equals(Object a, Object b) {
100:                return ((a == null && b == null) || (a != null && a.equals(b)));
101:            }
102:
103:            public static String collectStackTrace(Throwable t) {
104:                StringWriter sw = new StringWriter();
105:                PrintWriter pw = new PrintWriter(sw);
106:                t.printStackTrace(pw);
107:                pw.close();
108:                return sw.toString();
109:            }
110:
111:            public static boolean isAdmin(WorkflowUser user) {
112:                String adminUserString = getApplicationConstant("Config.Application.AdminUserList");
113:                String[] users = adminUserString.split(" ");
114:                for (int i = 0; i < users.length; i++) {
115:                    if (users[i].equalsIgnoreCase(user
116:                            .getAuthenticationUserId().getAuthenticationId())) {
117:                        return true;
118:                    }
119:                }
120:                return false;
121:            }
122:
123:            public static Calendar convertTimestamp(Timestamp timestamp) {
124:                if (timestamp == null) {
125:                    return null;
126:                }
127:                Calendar calendar = Calendar.getInstance();
128:                calendar.setTime(timestamp);
129:                return calendar;
130:            }
131:
132:            public static Timestamp convertCalendar(Calendar calendar) {
133:                if (calendar == null) {
134:                    return null;
135:                }
136:                return new Timestamp(calendar.getTime().getTime());
137:            }
138:
139:            public static Set asSet(Object[] objects) {
140:                Set set = new HashSet();
141:                if (objects != null) {
142:                    for (int index = 0; index < objects.length; index++) {
143:                        Object object = objects[index];
144:                        set.add(object);
145:                    }
146:                }
147:                return set;
148:            }
149:
150:            public static Set asSet(Object object) {
151:                Set set = new HashSet();
152:                if (object != null) {
153:                    set.add(object);
154:                }
155:                return set;
156:            }
157:
158:            public static List asList(Object object) {
159:                List<Object> list = new ArrayList<Object>(1);
160:                if (object != null) {
161:                    list.add(object);
162:                }
163:                return list;
164:            }
165:
166:            /**
167:             * 
168:             *	Consider moving out of this class if this bugs
169:             */
170:            public class PrioritySorter implements  Comparator {
171:                public int compare(Object arg0, Object arg1) {
172:                    ActionRequestValue ar1 = (ActionRequestValue) arg0;
173:                    ActionRequestValue ar2 = (ActionRequestValue) arg1;
174:                    int value = ar1.getPriority().compareTo(ar2.getPriority());
175:                    if (value == 0) {
176:                        value = ActionRequestValue
177:                                .compareActionCode(ar1.getActionRequested(),
178:                                        ar2.getActionRequested());
179:                        if (value == 0) {
180:                            value = ar1.getActionRequestId().compareTo(
181:                                    ar2.getActionRequestId());
182:                        }
183:                    }
184:                    return value;
185:                }
186:            }
187:
188:            /**
189:             * 
190:             *	Consider moving out of this class if this bugs
191:             */
192:            public class RouteLogActionRequestSorter implements  Comparator {
193:                public int compare(Object arg0, Object arg1) {
194:                    ActionRequestValue ar1 = (ActionRequestValue) arg0;
195:                    ActionRequestValue ar2 = (ActionRequestValue) arg1;
196:
197:                    if (!ar1.getChildrenRequests().isEmpty()) {
198:                        Collections.sort(ar1.getChildrenRequests(),
199:                                new RouteLogActionRequestSorter());
200:                    }
201:                    if (!ar2.getChildrenRequests().isEmpty()) {
202:                        Collections.sort(ar2.getChildrenRequests(),
203:                                new RouteLogActionRequestSorter());
204:                    }
205:
206:                    int routeLevelCompareVal = ar1.getRouteLevel().compareTo(
207:                            ar2.getRouteLevel());
208:                    if (routeLevelCompareVal != 0) {
209:                        return routeLevelCompareVal;
210:                    }
211:
212:                    if (ar1.isActive() && ar2.isPending()) {
213:                        return -1;
214:                    } else if (ar2.isActive() && ar1.isPending()) {
215:                        return 1;
216:                    }
217:
218:                    return new Utilities().new PrioritySorter().compare(arg0,
219:                            arg1);
220:                }
221:            }
222:
223:            public static boolean validateDate(String date, boolean dateOptional) {
224:                if ((date == null) || date.trim().equals("")) {
225:                    if (dateOptional) {
226:                        return true;
227:                    } else {
228:                        return false;
229:                    }
230:                }
231:
232:                try {
233:                    Date parsedDate = EdenConstants.getDefaultDateFormat()
234:                            .parse(date.trim());
235:                    if (!EdenConstants.getDefaultDateFormat()
236:                            .format(parsedDate).equals(date))
237:                        return false;
238:                    Calendar calendar = Calendar.getInstance();
239:                    calendar.setTime(parsedDate);
240:                    int yearInt = calendar.get(Calendar.YEAR);
241:                    if (yearInt <= 0 || yearInt > 2999) {
242:                        return false;
243:                    }
244:                    return true;
245:                } catch (Exception ex) {
246:                    return false;
247:                }
248:            }
249:
250:            public static boolean checkDateRanges(String fromDate, String toDate) {
251:                try {
252:                    Date parsedDate = EdenConstants.getDefaultDateFormat()
253:                            .parse(fromDate.trim());
254:                    Calendar fromCalendar = Calendar.getInstance();
255:                    fromCalendar.setTime(parsedDate);
256:                    fromCalendar.set(Calendar.HOUR_OF_DAY, 0);
257:                    fromCalendar.set(Calendar.MINUTE, 0);
258:                    fromCalendar.set(Calendar.SECOND, 0);
259:                    fromCalendar.set(Calendar.MILLISECOND, 0);
260:                    parsedDate = EdenConstants.getDefaultDateFormat().parse(
261:                            toDate.trim());
262:                    Calendar toCalendar = Calendar.getInstance();
263:                    toCalendar.setTime(parsedDate);
264:                    toCalendar.set(Calendar.HOUR_OF_DAY, 0);
265:                    toCalendar.set(Calendar.MINUTE, 0);
266:                    toCalendar.set(Calendar.SECOND, 0);
267:                    toCalendar.set(Calendar.MILLISECOND, 0);
268:                    if (fromCalendar.after(toCalendar)) {
269:                        return false;
270:                    }
271:                    return true;
272:                } catch (Exception ex) {
273:                    return false;
274:                }
275:            }
276:
277:            /**
278:             * Performs a "brute force" comparison of collections by testing whether the collections contain each other.
279:             * This circuments any particular uniqueness or ordering constraints on the collections
280:             * (for instance, lists that are unordered but contain the same elements, where a hashset would not suffice
281:             * for comparison purposes because it enforces element uniqueness)
282:             */
283:            public static boolean collectionsEquivalent(Collection a,
284:                    Collection b) {
285:                if (a == null && b == null)
286:                    return true;
287:                if (a == null ^ b == null)
288:                    return false;
289:                return a.containsAll(b) && b.containsAll(a);
290:            }
291:
292:            public static String getIpNumber() {
293:                try {
294:                    return InetAddress.getLocalHost().getHostAddress();
295:                } catch (UnknownHostException e) {
296:                    throw new WorkflowRuntimeException(
297:                            "Error retrieving ip number.", e);
298:                }
299:            }
300:
301:            public static String getHostName() {
302:                try {
303:                    return InetAddress.getLocalHost().getHostName();
304:                } catch (UnknownHostException e) {
305:                    throw new WorkflowRuntimeException(
306:                            "Error retrieving host name.", e);
307:                }
308:            }
309:        }
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