Example #1
0
  /**
   * @return Collection of readers after check.
   * @throws GridCacheEntryRemovedException If removed.
   */
  public Collection<ReaderId> checkReaders() throws GridCacheEntryRemovedException {
    synchronized (mux) {
      checkObsolete();

      if (!readers.isEmpty()) {
        List<ReaderId> rmv = null;

        for (ReaderId reader : readers) {
          if (!cctx.discovery().alive(reader.nodeId())) {
            if (rmv == null) rmv = new LinkedList<ReaderId>();

            rmv.add(reader);
          }
        }

        if (rmv != null) {
          readers = new LinkedList<ReaderId>(readers);

          for (ReaderId rdr : rmv) readers.remove(rdr);

          readers = Collections.unmodifiableList(readers);
        }
      }

      return readers;
    }
  }
Example #2
0
  /** {@inheritDoc} */
  @Override
  public boolean removeAttributeListener(GridTaskSessionAttributeListener lsnr) {
    A.notNull(lsnr, "lsnr");

    synchronized (mux) {
      List<GridTaskSessionAttributeListener> lsnrs =
          new ArrayList<GridTaskSessionAttributeListener>(this.lsnrs);

      boolean rmv = lsnrs.remove(lsnr);

      this.lsnrs = Collections.unmodifiableList(lsnrs);

      return rmv;
    }
  }
Example #3
0
  /**
   * @param nodeId Reader to remove.
   * @param msgId Message ID.
   * @return {@code True} if reader was removed as a result of this operation.
   * @throws GridCacheEntryRemovedException If entry was removed.
   */
  public boolean removeReader(UUID nodeId, long msgId) throws GridCacheEntryRemovedException {
    synchronized (mux) {
      checkObsolete();

      ReaderId reader = readerId(nodeId);

      if (reader == null || reader.messageId() > msgId) return false;

      readers = new LinkedList<ReaderId>(readers);

      readers.remove(reader);

      // Seal.
      readers = Collections.unmodifiableList(readers);

      return true;
    }
  }