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| package photospace.vfs.event; |
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| import java.io.*; |
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| import java.util.*; |
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| import org.apache.commons.io.*; |
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| import org.apache.commons.logging.*; |
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| import junit.framework.*; |
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| import photospace.vfs.*; |
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| public class FileSystemWatcherTest |
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| extends TestCase |
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| implements FileEventListener |
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| { |
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| private static final Log log = LogFactory.getLog(FileSystemWatcherTest.class); |
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| |
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| List fileEvents = new ArrayList(); |
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| List folderEvents = new ArrayList(); |
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| |
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| public synchronized void testFileEvents() throws Exception
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| { |
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| File testDir = new File(System.getProperties().getProperty("java.io.tmpdir"), "test");
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| File testFile = new File(testDir, "foo.jpg");
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| if (testDir.exists()) FileUtils.forceDelete(testDir);
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| |
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| testDir.mkdir();
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| assertTrue(testDir.exists());
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| assertTrue(testDir.isDirectory());
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| |
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| FileSystemWatcher watcher = new FileSystemWatcher();
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| watcher.setSleep(100);
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| watcher.setFilter(new MetaFileFilter());
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| watcher.addRoot(testDir);
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| watcher.addListener(this);
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| watcher.start();
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| wait(800);
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| testFile.createNewFile();
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| wait(800);
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| FileEvent lastFileEvent = popLastFileEvent();
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| assertEquals(FileEvent.CREATED, lastFileEvent.getType());
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| assertEquals(testFile.getCanonicalFile(), lastFileEvent.getSource());
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| FileEvent lastFolderEvent = popLastFolderEvent();
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| assertEquals(FileEvent.UPDATED, lastFolderEvent.getType());
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| assertEquals(testDir.getCanonicalFile(), lastFolderEvent.getSource());
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| testFile.setLastModified(new Date().getTime());
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| wait(800);
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| lastFileEvent = popLastFileEvent();
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| assertEquals(FileEvent.UPDATED, lastFileEvent.getType());
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| assertEquals(testFile.getCanonicalFile(), lastFileEvent.getSource());
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| lastFolderEvent = popLastFolderEvent();
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| assertNull(lastFolderEvent);
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| assertEquals(2, watcher.getSnapshot().size());
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| testFile.delete();
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| wait(800);
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| lastFileEvent = popLastFileEvent();
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| assertEquals(FileEvent.DELETED, lastFileEvent.getType());
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| assertEquals(testFile.getCanonicalFile(), lastFileEvent.getSource());
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| lastFolderEvent = popLastFolderEvent();
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| assertEquals(FileEvent.UPDATED, lastFolderEvent.getType());
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| assertEquals(testDir.getCanonicalFile(), lastFolderEvent.getSource());
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| assertEquals(1, watcher.getSnapshot().size());
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| File subDir = new File(testDir, "subdir");
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| subDir.mkdir();
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| assertTrue(subDir.exists());
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| wait(800);
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| lastFolderEvent = popLastFolderEvent();
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| assertEquals(FileEvent.CREATED, lastFolderEvent.getType());
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| assertEquals(subDir.getCanonicalFile(), lastFolderEvent.getSource());
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| lastFolderEvent = popLastFolderEvent();
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| assertEquals(FileEvent.UPDATED, lastFolderEvent.getType());
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| assertEquals(testDir.getCanonicalFile(), lastFolderEvent.getSource());
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| assertEquals(2, watcher.getSnapshot().size());
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| } |
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| public void handleFileEvent(FileEvent event)
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| { |
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| if (event.getSource().isDirectory()) folderEvents.add(event);
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3
| else fileEvents.add(event);
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| } |
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3
| public FileEvent popLastFileEvent()
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| { |
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0
| if (fileEvents.isEmpty()) return null;
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3
| return (FileEvent) fileEvents.remove(fileEvents.size() - 1);
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| } |
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5
| public FileEvent popLastFolderEvent()
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| { |
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1
| if (folderEvents.isEmpty()) return null;
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4
| return (FileEvent) folderEvents.remove(folderEvents.size() - 1);
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| } |
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| } |
