Code example for FileWriter

Methods: close, flush, sleep, write

0
        DefaultFileMonitor monitor = new DefaultFileMonitor(new TestFileListener());
        monitor.setDelay(100);
        monitor.addFile(fileObj);
        monitor.start();
        writeToFile(testFile);
        Thread.sleep(300);
        assertTrue("No event occurred", changeStatus != 0);
        assertTrue("Incorrect event", changeStatus == 3);
        monitor.stop();
    } 
 
    public void testFileDeleted() throws Exception 
    { 
        writeToFile(testFile);
        FileObject fileObj = fsManager.resolveFile(testFile.toURL().toString());
        DefaultFileMonitor monitor = new DefaultFileMonitor(new TestFileListener());
        monitor.setDelay(100);
        monitor.addFile(fileObj);
        monitor.start();
        testFile.delete();
        Thread.sleep(300);
        assertTrue("No event occurred", changeStatus != 0);
        assertTrue("Incorrect event", changeStatus == 2);
        monitor.stop();
    } 
 
    public void testFileModified() throws Exception 
    { 
        writeToFile(testFile);
        FileObject fileObj = fsManager.resolveFile(testFile.toURL().toString());
        DefaultFileMonitor monitor = new DefaultFileMonitor(new TestFileListener());
        monitor.setDelay(100);
        monitor.addFile(fileObj);
        monitor.start();
        // Need a long delay to insure the new timestamp doesn't truncate to be the same as 
        // the current timestammp. Java only guarantees the timestamp will be to 1 second. 
        Thread.sleep(1000);
        long value = System.currentTimeMillis();
        boolean rc = testFile.setLastModified(value);
        assertTrue("setLastModified succeeded",rc);
        Thread.sleep(300);
        assertTrue("No event occurred", changeStatus != 0);
        assertTrue("Incorrect event", changeStatus == 1);
        monitor.stop();
    } 
 
 
    public void testFileRecreated() throws Exception 
    { 
        FileObject fileObj = fsManager.resolveFile(testFile.toURL().toString());
        DefaultFileMonitor monitor = new DefaultFileMonitor(new TestFileListener());
        monitor.setDelay(100);
        monitor.addFile(fileObj);
        monitor.start();
        writeToFile(testFile);
        Thread.sleep(300);
        assertTrue("No event occurred", changeStatus != 0);
        assertTrue("Incorrect event " + changeStatus, changeStatus == 3);
        changeStatus = 0;
        testFile.delete();
        Thread.sleep(300);
        assertTrue("No event occurred", changeStatus != 0);
        assertTrue("Incorrect event " + changeStatus, changeStatus == 2);
        changeStatus = 0;
        Thread.sleep(500);
        monitor.addFile(fileObj);
        writeToFile(testFile);
        Thread.sleep(300);
        assertTrue("No event occurred", changeStatus != 0);
        assertTrue("Incorrect event " + changeStatus, changeStatus == 3);
        monitor.stop();
    } 
 
    private void writeToFile(File file) throws Exception
    { 
        FileWriter out = new FileWriter(file);
        out.write("string=value1");
        out.flush();
        out.close();
    } 
 
 
    public class TestFileListener implements FileListener 
    {