Java Code Examples for java.nio.channels.FileLock#close()
The following examples show how to use
java.nio.channels.FileLock#close() .
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Example 1
Source File: FileUtil.java From Chronicle-Queue with Apache License 2.0 | 6 votes |
/** * Returns if the given {@code file } is used by any process (i.e. * has the file open for reading or writing). * * @param file to check * @return if the given {@code file } is used by any process */ // Todo: Here is a candidate for Windows. Verify that it works private static FileState stateWindows(@NotNull File file) { if (!file.exists()) return FileState.NON_EXISTENT; try (RandomAccessFile randomAccessFile = new RandomAccessFile(file, "rw"); FileChannel fileChannel = randomAccessFile.getChannel()) { final FileLock fileLock = fileChannel.tryLock(); if (fileLock != null) { fileLock.close(); return FileState.CLOSED; } return FileState.OPEN; } catch (IOException ignored) { // Do nothing } return FileState.UNDETERMINED; }
Example 2
Source File: StreamerUtils.java From WandFix with MIT License | 5 votes |
public static void safeClose(FileLock closeable) { if (closeable != null) { try { if (Build.VERSION.SDK_INT > 18) { closeable.close(); } else { closeable.release(); } } catch (Throwable e) { } } }
Example 3
Source File: RootDirectorySystem.java From baratine with GNU General Public License v2.0 | 5 votes |
synchronized boolean isFree() { if (_lock != null) { return false; } if (! Files.isReadable(_path)) { return true; } try (FileOutputStream fOs = (FileOutputStream) Files.newOutputStream(_path)) { FileLock lock = fOs.getChannel().tryLock(); if (lock != null) { lock.close(); return true; } else { return false; } } catch (Exception e) { log.finer(_path + ": isFree " + e); log.log(Level.FINEST, e.toString(), e); return true; } }
Example 4
Source File: TempFileManager.java From pumpernickel with MIT License | 5 votes |
private static boolean isLocked(File file) { try { FileLock lock = IOUtils.getFileLock(file, true); if (lock == null) return true; lock.close(); return false; } catch (IOException e) { return true; } }
Example 5
Source File: FileChannelTest.java From j2objc with Apache License 2.0 | 5 votes |
private void useFileChannel() throws IOException { File file = File.createTempFile("j2objc", "tmp"); ChannelGetter channelGetter = new ChannelGetter(); channelGetter.createChannel(file); // The FileOutputStream used to create the channel is released at this point. FileChannel channel = channelGetter.get(); FileLock lock = channel.lock(); lock.close(); channel.close(); assertTrue(file.delete()); }
Example 6
Source File: CleanupUnusedQueueFilesTest.java From Chronicle-Queue with Apache License 2.0 | 5 votes |
boolean isNotOpenByAnyProcess(@NotNull File file) { try (RandomAccessFile randomAccessFile = new RandomAccessFile(file, "rw"); FileChannel fileChannel = randomAccessFile.getChannel()) { final FileLock fileLock = fileChannel.tryLock(); if (fileLock != null) { fileLock.close(); return true; } } catch (IOException ignored) { } return false; }