Examples of java.nio.channels.FileLock.release()

java.nio.channels.FileLock.release()
Releases this particular lock on the file. If the lock is invalid then this method has no effect. Once released the lock becomes invalid. @throws ClosedChannelException if the channel is already closed when an attempt to release the lock is made. @throws IOException some other IO exception occurred.

        can = FilePath.get(fsBase).toRealPath().toString();
        String can2 = FileUtils.toRealPath(FileUtils.getParent(path));
        assertEquals(can, can2);
        FileLock lock = channel.tryLock();
        if (lock != null) {
            lock.release();
        }
        assertEquals(10000, channel.size());
        channel.close();
        assertEquals(10000, FileUtils.size(fsBase + "/test"));
        channel = FileUtils.open(fsBase + "/test", "r");

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            FileLock lock = channel.lock();
            if (LOG.isTraceEnabled()) {
                LOG.trace("Acquired exclusive read lock: " + lock + " to file: " + file);
            }
            // just release it now we dont want to hold it during the rest of the processing
            lock.release();
        } finally {
            // must close channel
            ObjectHelper.close(channel, "FileConsumer during acquiring of exclusive read lock", LOG);
        }
    }

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            }
            writer.println(DATE_FORMAT.format(date) + " - " + actionStr + " - " + username);
            writer.flush();
            writer.close();
            if (lock.isValid()) {
                lock.release();
            }
        } catch (IOException e) {
            throw new RuntimeException("Unable to write to authentication log file", e);
        }
    }

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      throw new IOException(msg);
    }
    FileLock secondLock = tryLock(dir);
    if(secondLock != null) {
      LOGGER.warn("Directory "+dir+" does not support locking");
      secondLock.release();
      secondLock.channel().close();
    }
    locks.put(dir.getAbsolutePath(), lock);
  }

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  private void unlock(File dir) throws IOException {
    FileLock lock = locks.remove(dir.getAbsolutePath());
    if(lock == null) {
      return;
    }
    lock.release();
    lock.channel().close();
    lock = null;
  }
  static class BackgroundWorker implements Runnable {
    private static final Logger LOG = LoggerFactory

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                writable = false;
            } finally {
                if (lock != null) {
                    writable = true;
                    try {
                        lock.release();
                    } catch (IOException e) {
                        log.warn("Error while releasing the lock on file: " + file.getName(), e);
                        writable = false;
                    }
                } else {

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                // if lock is null the file is locked by another process
                fileCanBeLocked = true;
                try
                {
                    // Release the lock
                    lock.release();
                }
                catch (IOException e)
                {
                    // ignore
                }

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                position += read;
            }
            return position;
        } finally {
            out.close();
            lock.release();
        }
    }


    public InputStream getInputStream() throws IOException {
        return new FileInputStream(file);

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   * @tests java.nio.channels.FileLock#isValid()
   */
  public void test_isValid() throws IOException {
    FileLock fileLock = readWriteChannel.lock();
    assertTrue(fileLock.isValid());
    fileLock.release();
    assertFalse(fileLock.isValid());
  }
    
    /**
     * @tests java.nio.channels.FileLock#release()

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        FileOutputStream fout = new FileOutputStream(file);
        FileChannel fileChannel = fout.getChannel();
        FileLock fileLock = fileChannel.lock();
        fileChannel.close();
        try {
            fileLock.release();
            fail("should throw ClosedChannelException");
        } catch (ClosedChannelException e) {
            // expected
        }

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