@Override
public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
// This serializes the Map. The format is as follows
// Map size(VInt ie. 1 to 5 bytes) +
// ( key length [VInt ie. 1 to 5 bytes] + key bytes + value [VInt ie. 1 to 5 bytes] )*
buffer = new byte[countMapSerializationSize()];
int offset = 0;
offset += ByteUtil.vintToBytes(buffer, offset, this.valueVsCount.size());
for (Entry<ImmutableBytesPtr, Integer> entry : this.valueVsCount.entrySet()) {
ImmutableBytesPtr key = entry.getKey();
offset += ByteUtil.vintToBytes(buffer, offset, key.getLength());
System.arraycopy(key.get(), key.getOffset(), buffer, offset, key.getLength());
offset += key.getLength();
offset += ByteUtil.vintToBytes(buffer, offset, entry.getValue().intValue());
}
ptr.set(buffer, 0, offset);
return true;
}
