Examples with FileLock java.nio.channels.FileLock used on opensource projects

Example 11 with FileLock

use of java.nio.channels.FileLock in project PocketHub by pockethub.

the class RequestWriter method write.

/**
     * Write request to file
     *
     * @param request
     * @return request
     */
public <V> V write(V request) {
    RandomAccessFile dir = null;
    FileLock lock = null;
    ObjectOutputStream output = null;
    try {
        createDirectory(handle.getParentFile());
        dir = new RandomAccessFile(handle, "rw");
        lock = dir.getChannel().lock();
        output = new ObjectOutputStream(new GZIPOutputStream(new FileOutputStream(dir.getFD()), 8192));
        output.writeInt(version);
        output.writeObject(request);
    } catch (IOException e) {
        Log.d(TAG, "Exception writing cache " + handle.getName(), e);
        return null;
    } finally {
        if (output != null) {
            try {
                output.close();
            } catch (IOException e) {
                Log.d(TAG, "Exception closing stream", e);
            }
        }
        if (lock != null) {
            try {
                lock.release();
            } catch (IOException e) {
                Log.d(TAG, "Exception unlocking file", e);
            }
        }
        if (dir != null) {
            try {
                dir.close();
            } catch (IOException e) {
                Log.d(TAG, "Exception closing file", e);
            }
        }
    }
    return request;
}

Example 12 with FileLock

use of java.nio.channels.FileLock in project robovm by robovm.

the class FileLockTest method test_channel.

/**
	 * @tests java.nio.channels.FileLock#channel()
	 */
public void test_channel() {
    assertSame(readWriteChannel, mockLock.channel());
    FileLock lock = new MockFileLock(null, 0, 10, true);
    assertNull(lock.channel());
}

Example 13 with FileLock

use of java.nio.channels.FileLock in project robovm by robovm.

the class FileLockTest method test_isShared.

/**
	 * @tests java.nio.channels.FileLock#isShared()
	 */
public void test_isShared() {
    assertFalse(mockLock.isShared());
    FileLock lock = new MockFileLock(null, 0, 10, true);
    assertTrue(lock.isShared());
}

Example 14 with FileLock

use of java.nio.channels.FileLock in project robovm by robovm.

the class FileLockTest method test_Constructor_Ljava_nio_channels_FileChannelJJZ.

/**
	 * @tests java.nio.channels.FileLock#FileLock(FileChannel, long, long,
	 *        boolean)
	 */
public void test_Constructor_Ljava_nio_channels_FileChannelJJZ() {
    FileLock fileLock1 = new MockFileLock(null, 0, 0, false);
    assertNull(fileLock1.channel());
    try {
        new MockFileLock(readWriteChannel, -1, 0, false);
        fail("should throw IllegalArgumentException.");
    } catch (IllegalArgumentException ex) {
    // expected
    }
    try {
        new MockFileLock(readWriteChannel, 0, -1, false);
        fail("should throw IllegalArgumentException.");
    } catch (IllegalArgumentException ex) {
    // expected
    }
    // Harmony-682 regression test
    try {
        new MockFileLock(readWriteChannel, Long.MAX_VALUE, 1, false);
        fail("should throw IllegalArgumentException.");
    } catch (IllegalArgumentException ex) {
    // expected
    }
}

Example 15 with FileLock

use of java.nio.channels.FileLock in project robovm by robovm.

the class OldFileChannelTest method testTryLockOverlapping.

public void testTryLockOverlapping() throws IOException {
    FileLock lockOne = readWriteFileChannel.tryLock(0, 10, false);
    FileLock lockTwo = readWriteFileChannel.tryLock(10, 20, false);
    assertLockFails(0, 10);
    lockOne.release();
    assertLockFails(5, 10);
    lockOne = readWriteFileChannel.tryLock(0, 10, false);
    lockTwo.release();
    lockOne.release();
}