/**
* Commits a temp block.
*
* @param tempBlockMeta the meta data of the temp block to commit
* @throws OutOfSpaceException when no more space left to hold the block
* @throws AlreadyExistsException when the block already exists in committed blocks
* @throws NotFoundException when temp block can not be found
*/
public synchronized void commitTempBlockMeta(TempBlockMeta tempBlockMeta)
throws OutOfSpaceException, AlreadyExistsException, NotFoundException {
BlockMeta block = new BlockMeta(Preconditions.checkNotNull(tempBlockMeta));
StorageDir dir = tempBlockMeta.getParentDir();
dir.removeTempBlockMeta(tempBlockMeta);
dir.addBlockMeta(block);
}
/**
* Creates a block. This method is only called from a data server.
*
* <p>Call {@link #getTempBlockWriterRemote(long, long)} to get a writer for writing to the block.
*
* @param sessionId The id of the client
* @param blockId The id of the block to be created
* @param tierAlias The alias of the tier to place the new block in
* @param initialBytes The initial amount of bytes to be allocated
* @throws IllegalArgumentException if location does not belong to tiered storage
* @throws BlockAlreadyExistsException if blockId already exists, either temporary or committed,
* or block in eviction plan already exists
* @throws WorkerOutOfSpaceException if this Store has no more space than the initialBlockSize
* @throws IOException if blocks in eviction plan fail to be moved or deleted
*/
public void createBlockRemote(long sessionId, long blockId, String tierAlias, long initialBytes)
throws BlockAlreadyExistsException, WorkerOutOfSpaceException, IOException {
BlockStoreLocation loc = BlockStoreLocation.anyDirInTier(tierAlias);
TempBlockMeta createdBlock = mBlockStore.createBlockMeta(sessionId, blockId, loc, initialBytes);
FileUtils.createBlockPath(createdBlock.getPath());
}
/**
* Aborts a temp block.
*
* @param tempBlockMeta the meta data of the temp block to add
* @throws NotFoundException when block can not be found
*/
public synchronized void abortTempBlockMeta(TempBlockMeta tempBlockMeta)
throws NotFoundException {
StorageDir dir = tempBlockMeta.getParentDir();
dir.removeTempBlockMeta(tempBlockMeta);
}
/**
* Modifies the size of a temp block
*
* @param tempBlockMeta the temp block to modify
* @param newSize new size in bytes
* @throws InvalidStateException when newSize is smaller than current size
*/
public synchronized void resizeTempBlockMeta(TempBlockMeta tempBlockMeta, long newSize)
throws InvalidStateException {
StorageDir dir = tempBlockMeta.getParentDir();
dir.resizeTempBlockMeta(tempBlockMeta, newSize);
}
/**
* Adds a temp block.
*
* @param tempBlockMeta the meta data of the temp block to add
* @throws OutOfSpaceException when no more space left to hold the block
* @throws AlreadyExistsException when the block already exists
*/
public synchronized void addTempBlockMeta(TempBlockMeta tempBlockMeta)
throws OutOfSpaceException, AlreadyExistsException {
StorageDir dir = tempBlockMeta.getParentDir();
dir.addTempBlockMeta(tempBlockMeta);
}