Examples of org.apache.lucene.store.Lock$With

org.apache.lucene.store.Lock

An interprocess mutex lock.

Typical use might look like:

 new Lock.With(directory.makeLock("my.lock")) { public Object doBody() { ... code to execute while locked ... } }.run();

@see Directory#makeLock(String)

   * @return version number.
   * @throws IOException if segments file cannot be read.
   */
  public static long getCurrentVersion(Directory directory) throws IOException {
    synchronized (directory) {                 // in- & inter-process sync
      Lock commitLock=directory.makeLock(IndexWriter.COMMIT_LOCK_NAME);
      
      boolean locked=false;
      
      try {
         locked=commitLock.obtain(IndexWriter.COMMIT_LOCK_TIMEOUT);
         
         return SegmentInfos.readCurrentVersion(directory);
      } finally {
        if (locked) {
          commitLock.release();
        }
      }
    }
  }

View Full Code Here

   * 
   * @throws IOException
   */
  public boolean isCurrent() throws IOException {
    synchronized (directory) {                 // in- & inter-process sync
      Lock commitLock=directory.makeLock(IndexWriter.COMMIT_LOCK_NAME);
      
      boolean locked=false;
      
      try {
         locked=commitLock.obtain(IndexWriter.COMMIT_LOCK_TIMEOUT);
         
         return SegmentInfos.readCurrentVersion(directory) == segmentInfos.getVersion();
      } finally {
        if (locked) {
          commitLock.release();
        }
      }
    }
  }

View Full Code Here

  private void aquireWriteLock() throws IOException {
    if (stale)
      throw new IOException("IndexReader out of date and no longer valid for delete, undelete, or setNorm operations");


    if (writeLock == null) {
      Lock writeLock = directory.makeLock(IndexWriter.WRITE_LOCK_NAME);
      if (!writeLock.obtain(IndexWriter.WRITE_LOCK_TIMEOUT)) // obtain write lock
        throw new IOException("Index locked for write: " + writeLock);
      this.writeLock = writeLock;


      // we have to check whether index has changed since this reader was opened.
      // if so, this reader is no longer valid for deletion

View Full Code Here

    throws IOException {
      this.closeDir = closeDir;
      directory = d;
      analyzer = a;


      Lock writeLock = directory.makeLock(IndexWriter.WRITE_LOCK_NAME);
      if (!writeLock.obtain(writeLockTimeout)) // obtain write lock
        throw new IOException("Index locked for write: " + writeLock);
      this.writeLock = writeLock;                   // save it


      synchronized (directory) {        // in- & inter-process sync
        new Lock.With(directory.makeLock(IndexWriter.COMMIT_LOCK_NAME), commitLockTimeout) {

View Full Code Here

  private void verifyIndexIsLocked(boolean isLocked, Class type) throws IOException {
    SearchFactoryImplementor searchFactory = (SearchFactoryImplementor) builder.getSearchFactory();
    DirectoryBasedIndexManager indexManager = (DirectoryBasedIndexManager) searchFactory.getIndexBinding( type ).getIndexManagers()[0];
    Directory directory = indexManager.getDirectoryProvider().getDirectory();
    LockFactory lockFactory = directory.getLockFactory();
    Lock writeLock = lockFactory.makeLock( "write.lock" );
    Assert.assertEquals( isLocked, writeLock.isLocked() );
  }

View Full Code Here

      ensureOpen();
      if (stale)
        throw new StaleReaderException("IndexReader out of date and no longer valid for delete, undelete, or setNorm operations");
  
      if (writeLock == null) {
        Lock writeLock = directory.makeLock(IndexWriter.WRITE_LOCK_NAME);
        if (!writeLock.obtain(IndexWriter.WRITE_LOCK_TIMEOUT)) // obtain write lock
          throw new LockObtainFailedException("Index locked for write: " + writeLock);
        this.writeLock = writeLock;
  
        // we have to check whether index has changed since this reader was opened.
        // if so, this reader is no longer valid for deletion

View Full Code Here

    if (create) {
      // Clear the write lock in case it's leftover:
      directory.clearLock(WRITE_LOCK_NAME);
    }


    Lock writeLock = directory.makeLock(WRITE_LOCK_NAME);
    if (!writeLock.obtain(writeLockTimeout)) // obtain write lock
      throw new LockObtainFailedException("Index locked for write: " + writeLock);
    this.writeLock = writeLock;                   // save it


    try {
      if (create) {

View Full Code Here

  private List<Lock> acquireWriteLocks(Directory... dirs) throws IOException {
    List<Lock> locks = new ArrayList<>();
    for(int i=0;i<dirs.length;i++) {
      boolean success = false;
      try {
        Lock lock = dirs[i].makeLock(WRITE_LOCK_NAME);
        locks.add(lock);
        lock.obtain(config.getWriteLockTimeout());
        success = true;
      } finally {
        if (success == false) {
          // Release all previously acquired locks:
          IOUtils.closeWhileHandlingException(locks);

View Full Code Here

    throws IOException {
      this.closeDir = closeDir;
      directory = d;
      analyzer = a;


      Lock writeLock = directory.makeLock(IndexWriter.WRITE_LOCK_NAME);
      if (!writeLock.obtain(WRITE_LOCK_TIMEOUT)) // obtain write lock
        throw new IOException("Index locked for write: " + writeLock);
      this.writeLock = writeLock;                   // save it


      synchronized (directory) {        // in- & inter-process sync
        new Lock.With(directory.makeLock(IndexWriter.COMMIT_LOCK_NAME), COMMIT_LOCK_TIMEOUT) {

View Full Code Here


  /* (non-Javadoc)
   * @see org.apache.lucene.store.Directory#makeLock(java.lang.String)
   */
  public Lock makeLock(final String name) {
    return new Lock() {
      public boolean obtain() {
        return true;
      }


      public void release() {

View Full Code Here

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