Example #1
0
  /**
   * Adds the metadata of a new block into this storage dir or throws IOException.
   *
   * @param tempBlockMeta the meta data of a temp block to add
   * @throws IOException if blockId already exists or not enough space
   */
  public void addTempBlockMeta(TempBlockMeta tempBlockMeta) throws IOException {
    Preconditions.checkNotNull(tempBlockMeta);
    long userId = tempBlockMeta.getUserId();
    long blockId = tempBlockMeta.getBlockId();
    long blockSize = tempBlockMeta.getBlockSize();

    if (getAvailableBytes() < blockSize) {
      throw new IOException(
          "Failed to add TempBlockMeta: blockId "
              + blockId
              + " is "
              + blockSize
              + " bytes, but only "
              + getAvailableBytes()
              + " bytes available");
    }
    if (hasTempBlockMeta(blockId)) {
      throw new IOException("Failed to add TempBlockMeta: blockId " + blockId + " exists");
    }

    mBlockIdToTempBlockMap.put(blockId, tempBlockMeta);
    Set<Long> userTempBlocks = mUserIdToTempBlockIdsMap.get(userId);
    if (userTempBlocks == null) {
      mUserIdToTempBlockIdsMap.put(userId, Sets.newHashSet(blockId));
    } else {
      userTempBlocks.add(blockId);
    }
    reserveSpace(blockSize, false);
  }
Example #2
0
 /**
  * Changes the size of a temp block or throws IOException.
  *
  * @param tempBlockMeta the meta data of the temp block to resize
  * @param newSize the new size after change in bytes
  * @throws IOException
  */
 public void resizeTempBlockMeta(TempBlockMeta tempBlockMeta, long newSize) throws IOException {
   long oldSize = tempBlockMeta.getBlockSize();
   tempBlockMeta.setBlockSize(newSize);
   if (newSize > oldSize) {
     reserveSpace(newSize - oldSize, false);
   } else if (newSize < oldSize) {
     throw new IOException("Shrinking block, not supported!");
   }
 }
Example #3
0
  /**
   * Adds the metadata of a new block into this storage dir or throws IOException.
   *
   * @param blockMeta the meta data of the block
   * @throws IOException if blockId already exists or not enough space
   */
  public void addBlockMeta(BlockMeta blockMeta) throws IOException {
    Preconditions.checkNotNull(blockMeta);
    long blockId = blockMeta.getBlockId();
    long blockSize = blockMeta.getBlockSize();

    if (getAvailableBytes() < blockSize) {
      throw new IOException(
          "Failed to add BlockMeta: blockId "
              + blockId
              + " is "
              + blockSize
              + " bytes, but only "
              + getAvailableBytes()
              + " bytes available");
    }
    if (hasBlockMeta(blockId)) {
      throw new IOException("Failed to add BlockMeta: blockId " + blockId + " exists");
    }
    mBlockIdToBlockMap.put(blockId, blockMeta);
    reserveSpace(blockSize, true);
  }