@Override
public Block write(Block block) {
int bufferId =
assignor.assign(block.getBlockId(), block.getPrimaryDiskId(), block.getReplicaLevel());
BufferRegion region = getBufferRegion(bufferId, block.getReplicaLevel());
return region.write(block);
}
@Override
public List<Block> getBlocksInTheSameRegion(Block block) {
int bufferId =
assignor.assign(block.getBlockId(), block.getPrimaryDiskId(), block.getReplicaLevel());
BufferRegion region = getBufferRegion(bufferId, block.getReplicaLevel());
return region.getBufferedBlocks();
}
@Override
public Block remove(Block block) {
if (block == null) return null;
int bufferId =
assignor.assign(block.getBlockId(), block.getPrimaryDiskId(), block.getReplicaLevel());
BufferRegion region = getBufferRegion(bufferId, block.getReplicaLevel());
return region.remove(block.getBlockId());
}
@Override
public List<Block> getBlocksCorrespondingToSpecifiedDisk(int diskId) {
List<Block> result = new ArrayList<>();
for (List<BufferRegion> regions : regionTable.values()) {
for (BufferRegion region : regions) {
for (Block block : region.getBufferedBlocks()) {
if (block.getOwnerDiskId() == diskId) result.add(block);
}
}
}
return result;
}
@Override
public int getMaximumBufferLengthDiskId(int overflowedBufferId, int replicaLevel) {
BufferRegion region = getBufferRegion(overflowedBufferId, replicaLevel);
return region.getMaximumBufferLengthDiskId();
}