Source Code Cross Referenced for TestHelper.java in  » Development » Monolog » org » objectweb » util » monolog » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Development » Monolog » org.objectweb.util.monolog 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * Copyright (C) 2002
003:         */package org.objectweb.util.monolog;
004:
005:        import junit.framework.TestCase;
006:        import junit.textui.TestRunner;
007:        import org.objectweb.util.monolog.api.Handler;
008:        import org.objectweb.util.monolog.api.HandlerFactory;
009:        import org.objectweb.util.monolog.api.LevelFactory;
010:        import org.objectweb.util.monolog.api.LoggerFactory;
011:        import org.objectweb.util.monolog.api.TopicalLogger;
012:
013:        import java.io.*;
014:        import java.util.Vector;
015:
016:        /**
017:         * This class is test helper which provides tool methods to check a log file.
018:         * It extends TestCase to support the use with JUnit.
019:         * @author Sebastien Chassande-Barrioz
020:         */
021:        public class TestHelper extends TestCase {
022:            /**
023:             * This constant field contains the list of the setter name needed to
024:             * initialize this class.
025:             */
026:            public static final String[] SETTER_METHODS = { "setLoggerFactoryClassName", };
027:
028:            /**
029:             * The Logger factory used during the test
030:             */
031:            public static LoggerFactory lf = null;
032:
033:            /**
034:             * The handler factory used during the test
035:             */
036:            public static HandlerFactory hf = null;
037:
038:            /**
039:             * The level factory used during the test
040:             */
041:            public static LevelFactory lef = null;
042:
043:            /**
044:             * The default file name specify by a setter method.
045:             */
046:            protected String fileName = null;
047:
048:            public TestHelper() {
049:                super ("");
050:            }
051:
052:            public TestHelper(String s) {
053:                super (s);
054:            }
055:
056:            protected void setUp() throws Exception {
057:                if (lf == null) {
058:                    synchronized (TestHelper.class) {
059:                        lf = Monolog.getMonologFactory("monolog.properties");
060:                        hf = (HandlerFactory) lf;
061:                        lef = (LevelFactory) lf;
062:                    }
063:                }
064:            }
065:
066:            /**
067:             * It assigns the LoggerFactory class name. This method tries to get an
068:             * instance with this class name.
069:             */
070:            public void setLoggerFactoryClassName(String lfcn) {
071:                try {
072:                    lf = (LoggerFactory) Class.forName(lfcn).newInstance();
073:                } catch (ClassCastException e) {
074:                    throw new UnsupportedOperationException(
075:                            "The specified class is not a Logger factory: "
076:                                    + lfcn);
077:                } catch (Exception e) {
078:                    throw new UnsupportedOperationException(
079:                            "Logger factory class is not availlable: " + lfcn);
080:                }
081:                if (lf instanceof  HandlerFactory) {
082:                    hf = (HandlerFactory) lf;
083:                }
084:                if (lf instanceof  LevelFactory) {
085:                    lef = (LevelFactory) lf;
086:                }
087:            }
088:
089:            /**
090:             * It assigns the default log file name.
091:             */
092:            public void setOutputFile(String filename) {
093:                fileName = filename;
094:            }
095:
096:            /**
097:             * It runs the test.
098:             */
099:            public static void run(Class c, String[] methods, String params[],
100:                    String lfcn, String fn) {
101:                try {
102:                    TestRunner.run(getTestSuite(c, methods, params, lfcn, fn));
103:                } catch (Exception e) {
104:                    e.printStackTrace();
105:                }
106:            }
107:
108:            /**
109:             * It runs the test.
110:             */
111:            public static void run(Class c, String[] methods, String params[],
112:                    String lfcn) {
113:                try {
114:                    TestRunner.run(getTestSuite(c, methods, params, lfcn));
115:                } catch (Exception e) {
116:                    e.printStackTrace();
117:                }
118:            }
119:
120:            /**
121:             * It retrieves a test suite.
122:             */
123:            public static TestSuite getTestSuite(Class c, String[] methods,
124:                    String params[], String lfcn, String fn) {
125:                Object[] myparams = new Object[params.length + 2];
126:                myparams[0] = lfcn;
127:                myparams[1] = fn;
128:                for (int i = 0; i < params.length; i++) {
129:                    myparams[i + 2] = params[i];
130:                }
131:                String[] mymethods = new String[methods.length + 2];
132:                mymethods[0] = "setLoggerFactoryClassName";
133:                mymethods[1] = "setOutputFile";
134:                for (int i = 0; i < methods.length; i++) {
135:                    mymethods[i + 2] = methods[i];
136:                }
137:                try {
138:                    return new TestSuite(c, mymethods, myparams);
139:                } catch (Exception e) {
140:                    e.printStackTrace();
141:                    return null;
142:                }
143:            }
144:
145:            public static TestSuite getTestSuite(Class c, String[] methods,
146:                    String params[], String lfcn) {
147:                Object[] myparams = new Object[params.length + 1];
148:                myparams[0] = lfcn;
149:                for (int i = 0; i < params.length; i++) {
150:                    myparams[i + 1] = params[i];
151:                }
152:                String[] mymethods = new String[methods.length + 1];
153:                mymethods[0] = "setLoggerFactoryClassName";
154:                for (int i = 0; i < methods.length; i++) {
155:                    mymethods[i + 1] = methods[i];
156:                }
157:                try {
158:                    return new TestSuite(c, mymethods, myparams);
159:                } catch (Exception e) {
160:                    e.printStackTrace();
161:                    return null;
162:                }
163:            }
164:
165:            public static void main(String[] args) {
166:                if (args == null || args.length <= 1) {
167:                    System.out.println("Invalid argument");
168:                    System.exit(1);
169:                }
170:                try {
171:                    File f = new File(args[0]);
172:                    f.delete();
173:                    f.createNewFile();
174:                    PrintStream ps = new PrintStream(new FileOutputStream(f));
175:                    String[] required = new String[args.length - 1];
176:                    for (int i = 0; i < required.length; i++) {
177:                        required[i] = args[i + 1];
178:                        ps.println(required[i]);
179:                    }
180:                    ps.flush();
181:                    ps.close();
182:                    TestHelper to = new TestHelper();
183:                    to.setOutputFile(args[0]);
184:                    to.assertInFileEquals("my message", required);
185:                    f.delete();
186:                } catch (IOException e) {
187:                    e.printStackTrace();
188:                    fail(e.getMessage());
189:                }
190:            }
191:
192:            /**
193:             * It checks that the last line of the default log file is equals to a
194:             * specified string.
195:             * @param message is the error message if the string is not found.
196:             * @param required is the string which must be file in the default log file
197:             */
198:            public void assertInFileEquals(String message, String required) {
199:                String[] r = new String[1];
200:                r[0] = required;
201:                assertInFileEquals(message, fileName, r);
202:            }
203:
204:            /**
205:             * It checks that the last line of the specified log file is equals to a
206:             * specified string.
207:             * @param message is the error message if the string is not found.
208:             * @param filename is the log file name
209:             * @param required is the string which must be file in the default log file
210:             */
211:            public void assertInFileEquals(String message, String filename,
212:                    String required) {
213:                String[] r = new String[1];
214:                r[0] = required;
215:                assertInFileEquals(message, filename, r);
216:            }
217:
218:            /**
219:             * It checks that the last lines of the default log file is equals to a
220:             * specified string string.
221:             * @param message is the error message if the string array is not found.
222:             * @param required is the string array which must be file in the default
223:             * log file.
224:             */
225:            public void assertInFileEquals(String message, String[] required) {
226:                String[] text = getFirstLines(fileName, required.length);
227:                // Check the String
228:                for (int i = 0; i < required.length; i++) {
229:                    debug("found : text[" + i + "]=" + text[i]
230:                            + " text[i].length = " + text[i].length());
231:                    debug("required : required[" + i + "]=" + required[i]
232:                            + " required[i].length = " + required[i].length());
233:                    assertEquals(message + " " + i, required[i], text[i]);
234:                }
235:            }
236:
237:            /**
238:             * It checks that the last lines of the specified log file is equals to a
239:             * specified string string.
240:             * @param message is the error message if the string array is not found.
241:             * @param filename is the log file name
242:             * @param required is the string array which must be file in the default
243:             * log file.
244:             */
245:            public void assertInFileEquals(String message, String filename,
246:                    String[] required) {
247:                String[] text = getFirstLines(filename, required.length);
248:                // Check the String
249:                for (int i = 0; i < required.length; i++) {
250:                    debug("found : text[" + i + "]=" + text[i]);
251:                    debug("required : required[" + i + "]=" + required[i]);
252:                    assertEquals(message + " " + i, required[i], text[i]);
253:                }
254:            }
255:
256:            /**
257:             * Return the last lines of the default log file.
258:             * @param linenumber is the number of line which must be retrieved.
259:             * @return a string array which matches to the last line.
260:             */
261:            public String[] getLastLines(int linenumber) {
262:                return getLastLines(fileName, linenumber);
263:            }
264:
265:            /**
266:             * Return the last lines of the default log file.
267:             * @param linenumber is the number of line which must be retrieved.
268:             * @return a string array which matches to the last line.
269:             */
270:            public String[] getFirstLines(int linenumber) {
271:                return getFirstLines(fileName, linenumber);
272:            }
273:
274:            /**
275:             * Return the first lines of the specified log file.
276:             * @param linenumber is the number of line which must be retrieved.
277:             * @param filename is the log file name
278:             * @return a string array which matches to the last line.
279:             */
280:            public String[] getFirstLines(String filename, int linenumber) {
281:                if (filename == null || linenumber == 0)
282:                    return (null);
283:                Vector v = new Vector(linenumber);
284:                try {
285:                    FileReader fr = new FileReader(filename);
286:                    LineNumberReader lnr = new LineNumberReader(fr);
287:                    String str = lnr.readLine();
288:                    int i = 0;
289:                    while (i < linenumber && str != null) {
290:                        v.addElement(str);
291:                        str = lnr.readLine();
292:                        i++;
293:                    }
294:                    int size = v.size();
295:                    String[] res = new String[size];
296:                    for (int j = 0; j < size; j++) {
297:                        res[j] = (String) v.elementAt(j);
298:                    }
299:                    return res;
300:                } catch (Exception e) {
301:                    e.printStackTrace();
302:                    //			fail(e.getMessage());
303:                    return null;
304:                }
305:            }
306:
307:            /**
308:             * Return the last lines of the specified log file.
309:             * @param linenumber is the number of line which must be retrieved.
310:             * @param filename is the log file name
311:             * @return a string array which matches to the last line.
312:             */
313:            public String[] getLastLines(String filename, int linenumber) {
314:                if (filename == null || linenumber == 0)
315:                    return (null);
316:                Vector v = new Vector(linenumber);
317:                try {
318:                    FileReader fr = new FileReader(filename);
319:                    LineNumberReader lnr = new LineNumberReader(fr);
320:                    String str = lnr.readLine();
321:                    int i = 0;
322:                    while (str != null) {
323:                        v.addElement(str);
324:                        str = lnr.readLine();
325:                        i++;
326:                    }
327:                    int size = v.size();
328:                    String[] res = new String[size];
329:                    for (int j = 0; j < size; j++) {
330:                        res[j] = (String) v.elementAt(size - 1 - j);
331:                    }
332:                    return res;
333:                } catch (Exception e) {
334:                    e.printStackTrace();
335:                    //			fail(e.getMessage());
336:                    return null;
337:                }
338:            }
339:
340:            /**
341:             * It removes all handlers of the root logger.
342:             */
343:            public void quietRootLogger() {
344:                TopicalLogger l = (TopicalLogger) lf.getLogger("root");
345:                Handler[] hcs = l.getHandler();
346:                Handler hc = hf.createHandler("handlerOfroot", "file");
347:                hc.setAttribute(Handler.OUTPUT_ATTRIBUTE, "rootLogger.log");
348:                hc.setAttribute(Handler.PATTERN_ATTRIBUTE, "%m%n");
349:                hc.setAttribute("activation", lf);
350:                try {
351:                    l.addHandler(hc);
352:                    for (int i = 0; i < hcs.length; i++) {
353:                        l.removeHandler(hcs[i]);
354:                    }
355:                } catch (Exception e) {
356:                    fail("error" + e.getMessage());
357:                }
358:                l = null;
359:            }
360:
361:            static boolean debug = Boolean.valueOf(
362:                    System.getProperty("monolog.test.debug")).booleanValue();
363:
364:            /**
365:             * This methods is used to debug this helper.
366:             */
367:            protected void debug(String m) {
368:                if (debug)
369:                    System.out.println(m);
370:            }
371:
372:            private int next(int i, int max) {
373:                return (i + 1 == max ? 0 : i + 1);
374:            }
375:        }
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