@Override
public int size() throws IOException, AlluxioException {
int totalSize = 0;
// TODO(cc): Put size into PartitionInfo.
for (PartitionInfo partition : mPartitions) {
KeyValuePartitionReader partitionReader =
KeyValuePartitionReader.Factory.create(partition.getBlockId());
totalSize += partitionReader.size();
partitionReader.close();
}
return totalSize;
}
@Override
public ByteBuffer get(ByteBuffer key) throws IOException, AlluxioException {
Preconditions.checkNotNull(key);
// TODO(binfan): improve the inefficient for-loop to binary search.
for (PartitionInfo partition : mPartitions) {
// NOTE: keyStart and keyLimit are both inclusive
if (key.compareTo(partition.bufferForKeyStart()) >= 0
&& key.compareTo(partition.bufferForKeyLimit()) <= 0) {
long blockId = partition.getBlockId();
KeyValuePartitionReader reader = KeyValuePartitionReader.Factory.create(blockId);
try {
ByteBuffer value = reader.get(key);
return value;
} finally {
reader.close();
}
}
}
return null;
}