Source Code Cross Referenced for StampsTest.java in  » IDE-Netbeans » library » org » netbeans » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » library » org.netbeans 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003:         * 
004:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005:         * 
006:         * The contents of this file are subject to the terms of either the GNU
007:         * General Public License Version 2 only ("GPL") or the Common
008:         * Development and Distribution License("CDDL") (collectively, the
009:         * "License"). You may not use this file except in compliance with the
010:         * License. You can obtain a copy of the License at
011:         * http://www.netbeans.org/cddl-gplv2.html
012:         * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013:         * specific language governing permissions and limitations under the
014:         * License.  When distributing the software, include this License Header
015:         * Notice in each file and include the License file at
016:         * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
017:         * particular file as subject to the "Classpath" exception as provided
018:         * by Sun in the GPL Version 2 section of the License file that
019:         * accompanied this code. If applicable, add the following below the
020:         * License Header, with the fields enclosed by brackets [] replaced by
021:         * your own identifying information:
022:         * "Portions Copyrighted [year] [name of copyright owner]"
023:         * 
024:         * If you wish your version of this file to be governed by only the CDDL
025:         * or only the GPL Version 2, indicate your decision by adding
026:         * "[Contributor] elects to include this software in this distribution
027:         * under the [CDDL or GPL Version 2] license." If you do not indicate a
028:         * single choice of license, a recipient has the option to distribute
029:         * your version of this file under either the CDDL, the GPL Version 2 or
030:         * to extend the choice of license to its licensees as provided above.
031:         * However, if you add GPL Version 2 code and therefore, elected the GPL
032:         * Version 2 license, then the option applies only if the new code is
033:         * made subject to such option by the copyright holder.
034:         * 
035:         * Contributor(s):
036:         * 
037:         * Portions Copyrighted 2008 Sun Microsystems, Inc.
038:         */
039:
040:        package org.netbeans;
041:
042:        import java.io.DataOutputStream;
043:        import java.io.File;
044:        import java.io.IOException;
045:        import java.io.InputStream;
046:        import java.nio.ByteBuffer;
047:        import java.nio.MappedByteBuffer;
048:        import java.util.LinkedList;
049:        import java.util.concurrent.Semaphore;
050:        import java.util.logging.Level;
051:        import java.util.logging.Logger;
052:        import junit.framework.Test;
053:        import org.netbeans.junit.Log;
054:        import org.netbeans.junit.NbTestCase;
055:        import org.netbeans.junit.NbTestSuite;
056:
057:        /**
058:         *
059:         * @author Jaroslav Tulach <jaroslav.tulach@netbeans.org>
060:         */
061:        public class StampsTest extends NbTestCase {
062:            private File userdir;
063:            private File ide;
064:            private File platform;
065:            private File install;
066:
067:            public static Test suite() {
068:                //        return new StampsTest("testFastWhenShutdown");
069:                return new NbTestSuite(StampsTest.class);
070:            }
071:
072:            public StampsTest(String testName) {
073:                super (testName);
074:            }
075:
076:            @Override
077:            protected void setUp() throws Exception {
078:                clearWorkDir();
079:
080:                install = new File(getWorkDir(), "install");
081:                platform = new File(install, "platform7");
082:                ide = new File(install, "ide8");
083:                userdir = new File(getWorkDir(), "tmp");
084:
085:                System.setProperty("netbeans.home", platform.getPath());
086:                System.setProperty("netbeans.dirs", ide.getPath());
087:                System.setProperty("netbeans.user", userdir.getPath());
088:
089:                createModule("org.openide.awt", platform, 50000L);
090:                createModule("org.openide.nodes", platform, 60000L);
091:                createModule("org.netbeans.api.languages", ide, 90000L);
092:                createModule("org.netbeans.modules.logmanagement", userdir,
093:                        10000L);
094:
095:                Stamps.main("reset");
096:
097:                Thread.sleep(100);
098:
099:                Logger l = Logger.getLogger("org");
100:                l.setLevel(Level.OFF);
101:                l.setUseParentHandlers(false);
102:            }
103:
104:            @Override
105:            protected void tearDown() throws Exception {
106:                super .tearDown();
107:            }
108:
109:            public void testEmpty() {
110:                Stamps.getModulesJARs().waitFor(false);
111:            }
112:
113:            public void testGenerateTimeStamps() {
114:                long stamp = Stamps.moduleJARs();
115:                assertEquals("Timestamp is taken from api.languages module",
116:                        90000L, stamp);
117:
118:                assertStamp(60000L, platform, false, true);
119:                assertStamp(90000L, ide, false, true);
120:                assertStamp(-1L, userdir, false, false);
121:
122:                Stamps.main("reset");
123:
124:                CountingSecurityManager.initialize(install.getPath());
125:
126:                long newStamp = Stamps.moduleJARs();
127:
128:                CountingSecurityManager.assertCounts(
129:                        "Just two accesses installation", 2);
130:                assertEquals("Stamps are the same", stamp, newStamp);
131:
132:                assertStamp(60000L, platform, false, true);
133:                assertStamp(90000L, ide, false, true);
134:                assertStamp(-1L, userdir, false, false);
135:
136:                Stamps.main("reset");
137:                CountingSecurityManager.initialize(new File(userdir, "var")
138:                        .getPath());
139:                long newStamp2 = Stamps.moduleJARs();
140:
141:                CountingSecurityManager.assertCounts(
142:                        "Just two accesses to cache", 2);
143:                assertEquals("Stamps are the same", stamp, newStamp2);
144:            }
145:
146:            public void testWriteToCache() throws Exception {
147:                final Stamps s = Stamps.getModulesJARs();
148:
149:                assertNull(s.asByteBuffer("mycache.dat"));
150:                assertNull(s.asStream("mycache.dat"));
151:
152:                class Up implements  Stamps.Updater {
153:
154:                    public void flushCaches(DataOutputStream os)
155:                            throws IOException {
156:                        os.writeInt(1);
157:                        os.writeInt(2);
158:                        os.writeShort(2);
159:                    }
160:
161:                    public void cacheReady() {
162:                        assertNotNull("stream can be obtained", s
163:                                .asStream("mycache.dat"));
164:                    }
165:
166:                }
167:                Up updater = new Up();
168:
169:                s.scheduleSave(updater, "mycache.dat", false);
170:
171:                assertNull(s.asByteBuffer("mycache.dat"));
172:                assertNull(s.asStream("mycache.dat"));
173:
174:                s.waitFor(false);
175:
176:                ByteBuffer bb;
177:                InputStream is;
178:                assertNotNull(bb = s.asByteBuffer("mycache.dat"));
179:                assertNotNull(is = s.asStream("mycache.dat"));
180:
181:                assertEquals("10 bytes", 10, bb.remaining());
182:                assertEquals("10 bytes stream", 10, is.available());
183:                is.close();
184:                bb.clear();
185:
186:                s.discardCaches();
187:
188:                assertNull(s.asByteBuffer("mycache.dat"));
189:                assertNull(s.asStream("mycache.dat"));
190:            }
191:
192:            public void testAppendToCache() throws Exception {
193:                final Stamps s = Stamps.getModulesJARs();
194:
195:                assertNull(s.asByteBuffer("mycache.dat"));
196:                assertNull(s.asStream("mycache.dat"));
197:
198:                class Up implements  Stamps.Updater {
199:
200:                    public void flushCaches(DataOutputStream os)
201:                            throws IOException {
202:                        os.writeInt(1);
203:                        os.writeInt(2);
204:                        os.writeShort(2);
205:                    }
206:
207:                    public void cacheReady() {
208:                        assertNotNull("stream can be obtained", s
209:                                .asStream("mycache.dat"));
210:                    }
211:
212:                }
213:                Up updater = new Up();
214:
215:                s.scheduleSave(updater, "mycache.dat", true);
216:
217:                assertNull(s.asByteBuffer("mycache.dat"));
218:                assertNull(s.asStream("mycache.dat"));
219:
220:                s.waitFor(false);
221:
222:                {
223:                    ByteBuffer bb;
224:                    InputStream is;
225:                    assertNotNull(bb = s.asByteBuffer("mycache.dat"));
226:                    assertNotNull(is = s.asStream("mycache.dat"));
227:
228:                    assertEquals("10 bytes", 10, bb.remaining());
229:                    assertEquals("10 bytes stream", 10, is.available());
230:
231:                    is.close();
232:                    bb.clear();
233:                }
234:
235:                s.scheduleSave(updater, "mycache.dat", true);
236:
237:                s.waitFor(false);
238:
239:                {
240:                    ByteBuffer bb;
241:                    assertNotNull(bb = s.asByteBuffer("mycache.dat"));
242:
243:                    assertEquals("appened bytes", 20, bb.remaining());
244:
245:                    bb.clear();
246:                }
247:
248:            }
249:
250:            public void testFastWhenShutdown() throws Exception {
251:                Stamps s = Stamps.getModulesJARs();
252:
253:                assertNull(s.asByteBuffer("mycache.dat"));
254:                assertNull(s.asStream("mycache.dat"));
255:
256:                class Up implements  Stamps.Updater {
257:                    volatile boolean finished;
258:
259:                    public void flushCaches(DataOutputStream os)
260:                            throws IOException {
261:                        byte[] arr = new byte[4096];
262:                        for (int i = 0; i < 10000; i++) {
263:                            long previous = System.currentTimeMillis();
264:                            os.write(arr);
265:                            synchronized (this ) {
266:                                notifyAll();
267:                            }
268:                        }
269:                        finished = true;
270:                    }
271:
272:                    public void cacheReady() {
273:                    }
274:
275:                }
276:                Up updater = new Up();
277:
278:                s.scheduleSave(updater, "mycache.dat", false);
279:
280:                long now = System.currentTimeMillis();
281:                s.flush(1000);
282:                synchronized (updater) {
283:                    updater.wait();
284:                }
285:                long diff = System.currentTimeMillis() - now;
286:                if (diff < 800) {
287:                    fail("Updating shall start after 1s, not sooner: " + diff);
288:                }
289:                s.waitFor(false);
290:
291:                assertTrue("Save is done", updater.finished);
292:            }
293:
294:            public void testWriteToCacheWithError() {
295:                Stamps s = Stamps.getModulesJARs();
296:
297:                assertNull(s.asByteBuffer("mycache.dat"));
298:                assertNull(s.asStream("mycache.dat"));
299:
300:                class Up implements  Stamps.Updater {
301:                    boolean called;
302:
303:                    public void flushCaches(DataOutputStream os)
304:                            throws IOException {
305:                        throw new IOException("Not supported yet.");
306:                    }
307:
308:                    public void cacheReady() {
309:                        called = true;
310:                    }
311:
312:                }
313:                Up updater = new Up();
314:
315:                s.scheduleSave(updater, "mycache.dat", false);
316:
317:                assertNull(s.asByteBuffer("mycache.dat"));
318:                assertNull(s.asStream("mycache.dat"));
319:
320:                CharSequence log = Log.enable("org.netbeans", Level.WARNING);
321:                s.waitFor(false);
322:
323:                assertNull(s.asByteBuffer("mycache.dat"));
324:                assertNull(s.asStream("mycache.dat"));
325:
326:                if (log.length() < 10) {
327:                    fail("There should be a warning written to log:\n" + log);
328:                }
329:
330:                assertFalse("cache ready not called", updater.called);
331:            }
332:
333:            public void testCanHaveSubdirs() {
334:                final Stamps s = Stamps.getModulesJARs();
335:
336:                assertNull(s.asByteBuffer("mydir/mycache.dat"));
337:
338:                class Up implements  Stamps.Updater {
339:                    boolean called;
340:
341:                    public void flushCaches(DataOutputStream os)
342:                            throws IOException {
343:                        os.write(1);
344:                    }
345:
346:                    public void cacheReady() {
347:                        assertTrue("Now the cache can be accessed", s
348:                                .exists("mydir/mycache.dat"));
349:                        called = true;
350:                    }
351:
352:                }
353:                Up updater = new Up();
354:
355:                s.scheduleSave(updater, "mydir/mycache.dat", false);
356:                s.waitFor(false);
357:
358:                File userDir = new File(System.getProperty("netbeans.user"));
359:                File my = new File(new File(new File(new File(userDir, "var"),
360:                        "cache"), "mydir"), "mycache.dat");
361:
362:                assertTrue("file created", my.canRead());
363:                assertEquals("size 1", 1, my.length());
364:
365:                assertTrue("cache was ready", updater.called);
366:            }
367:
368:            public void testShutdownAndThenNoNotify() {
369:                final Stamps s = Stamps.getModulesJARs();
370:
371:                assertNull(s.asByteBuffer("mydir/mycache.dat"));
372:
373:                class Up implements  Stamps.Updater {
374:                    boolean called;
375:
376:                    public void flushCaches(DataOutputStream os)
377:                            throws IOException {
378:                        os.write(1);
379:                    }
380:
381:                    public void cacheReady() {
382:                        called = true;
383:                    }
384:
385:                }
386:                Up updater = new Up();
387:
388:                s.scheduleSave(updater, "mydir/mycache.dat", false);
389:                s.flush(10000);
390:                s.shutdown();
391:
392:                File userDir = new File(System.getProperty("netbeans.user"));
393:                File my = new File(new File(new File(new File(userDir, "var"),
394:                        "cache"), "mydir"), "mycache.dat");
395:
396:                assertTrue("file created", my.canRead());
397:                assertEquals("size 1", 1, my.length());
398:
399:                assertFalse("cache was not called, due to shutdown",
400:                        updater.called);
401:            }
402:
403:            public void testJustOnce() {
404:                final Stamps s = Stamps.getModulesJARs();
405:
406:                assertNull(s.asByteBuffer("mydir/mycache.dat"));
407:
408:                class Up implements  Stamps.Updater {
409:                    int cnt;
410:
411:                    public void flushCaches(DataOutputStream os)
412:                            throws IOException {
413:
414:                        assertNull("Now it is null", s
415:                                .asStream("mydir/mycache.dat"));
416:
417:                        os.write(1);
418:                        cnt++;
419:                        if (cnt == 2) {
420:                            fail("Can save just once");
421:                        }
422:                    }
423:
424:                    public void cacheReady() {
425:                    }
426:
427:                }
428:                Up updater = new Up();
429:
430:                s.scheduleSave(updater, "mydir/mycache.dat", false);
431:                s.scheduleSave(updater, "mydir/mycache.dat", false);
432:
433:                s.waitFor(false);
434:
435:                assertEquals("only once", 1, updater.cnt);
436:
437:                s.scheduleSave(updater, "mydir/mycache.dat", false);
438:                assertNull("Now it is null as well", s
439:                        .asStream("mydir/mycache.dat"));
440:                updater.cnt = 0;
441:                s.waitFor(false);
442:
443:                assertNotNull("Returns value again", s
444:                        .asStream("mydir/mycache.dat"));
445:                assertEquals("only once", 1, updater.cnt);
446:
447:            }
448:
449:            public void testParael() throws InterruptedException {
450:                final Stamps s = Stamps.getModulesJARs();
451:
452:                assertNull(s.asMappedByteBuffer("mydir/mycache.dat"));
453:
454:                class Up implements  Stamps.Updater, Runnable {
455:                    int ready;
456:                    int cnt;
457:                    Semaphore flushing = new Semaphore(0);
458:                    Semaphore scheduled = new Semaphore(0);
459:
460:                    public void flushCaches(DataOutputStream os)
461:                            throws IOException {
462:                        int what = cnt++;
463:                        if (what == 0) {
464:                            flushing.release();
465:                            scheduled.acquireUninterruptibly();
466:                        }
467:                        for (int i = 0; i < 1024 * 1024; i++) {
468:                            os.write(what);
469:                        }
470:                    }
471:
472:                    public void run() {
473:                        flushing.acquireUninterruptibly();
474:                        s.scheduleSave(this , "mydir/mycache.dat", false);
475:                        scheduled.release();
476:                        assertFalse(s.exists("mydir/mycache.dat"));
477:                        s.waitFor(false);
478:                    }
479:
480:                    public void cacheReady() {
481:                        ready++;
482:                    }
483:                }
484:                Up updater = new Up();
485:
486:                s.scheduleSave(updater, "mydir/mycache.dat", false);
487:
488:                Thread t = new Thread(updater, "fast flush");
489:                t.start();
490:                // slow flush
491:                s.flush(50);
492:                t.join();
493:
494:                assertEquals("run twice", 2, updater.cnt);
495:                assertEquals("but just once ready", 1, updater.ready);
496:
497:                MappedByteBuffer mmap = s
498:                        .asMappedByteBuffer("mydir/mycache.dat");
499:                {
500:                    assertEquals("1mb", 1024 * 1024, mmap.remaining());
501:                    int r = 0;
502:                    while (mmap.remaining() > 0) {
503:                        assertEquals("Value " + r + " OK: ", 1, mmap.get());
504:                        r++;
505:                    }
506:                }
507:
508:                s.scheduleSave(updater, "mydir/mycache.dat", false);
509:                assertNull("Now it is null as well", s
510:                        .asStream("mydir/mycache.dat"));
511:                s.waitFor(false);
512:
513:                MappedByteBuffer mmap2 = s
514:                        .asMappedByteBuffer("mydir/mycache.dat");
515:                assertNotNull(mmap2);
516:
517:                {
518:                    assertEquals("1mb", 1024 * 1024, mmap2.remaining());
519:                    int r = 0;
520:                    while (mmap2.remaining() > 0) {
521:                        assertEquals("Value2 " + r + " OK: ", 2, mmap2.get());
522:                        r++;
523:                    }
524:                }
525:            }
526:
527:            private static void assertStamp(long expectedValue, File cluster,
528:                    boolean global, boolean local) {
529:                File globalStamp = new File(cluster, ".lastModified");
530:
531:                File userDir = new File(System.getProperty("netbeans.user"));
532:                File localStamp = new File(new File(new File(new File(userDir,
533:                        "var"), "cache"), "lastModified"), cluster.getName());
534:
535:                if (global) {
536:                    assertTrue("File shall exist: " + globalStamp, globalStamp
537:                            .exists());
538:                    assertEquals("Modification time is good " + globalStamp,
539:                            expectedValue, globalStamp.lastModified());
540:                } else {
541:                    assertFalse("File shall not exist: " + globalStamp,
542:                            globalStamp.exists());
543:                }
544:
545:                if (local) {
546:                    assertTrue("File shall exist: " + localStamp, localStamp
547:                            .exists());
548:                    assertEquals("Modification time is good " + localStamp,
549:                            expectedValue, localStamp.lastModified());
550:                } else {
551:                    assertFalse("File shall not exist: " + localStamp,
552:                            localStamp.exists());
553:                }
554:
555:            }
556:
557:            private void createModule(String cnb, File cluster, long accesTime)
558:                    throws IOException {
559:                String dashes = cnb.replace('.', '-');
560:
561:                File config = new File(new File(new File(cluster, "config"),
562:                        "Modules"), dashes + ".xml");
563:                File jar = new File(new File(cluster, "modules"), dashes
564:                        + ".jar");
565:
566:                config.getParentFile().mkdirs();
567:                jar.getParentFile().mkdirs();
568:
569:                config.createNewFile();
570:                jar.createNewFile();
571:                config.setLastModified(accesTime);
572:                jar.setLastModified(accesTime);
573:            }
574:
575:        }
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