/*
* Aerospike Client - Java Library
*
* Copyright 2013 by Aerospike, Inc. All rights reserved.
*
* Availability of this source code to partners and customers includes
* redistribution rights covered by individual contract. Please check your
* contract for exact rights and responsibilities.
*/
package com.aerospike.client.async;
import java.io.IOException;
import java.nio.ByteBuffer;
import com.aerospike.client.AerospikeException;
import com.aerospike.client.Key;
import com.aerospike.client.cluster.Partition;
public abstract class AsyncSingleCommand extends AsyncCommand {
protected final Key key;
private final Partition partition;
protected int receiveSize;
private boolean inHeader = true;
public AsyncSingleCommand(AsyncCluster cluster, Key key) {
super(cluster);
this.key = key;
this.partition = new Partition(key);
}
protected final AsyncNode getNode() throws AerospikeException.InvalidNode {
return (AsyncNode)cluster.getNode(partition);
}
protected final void read() throws AerospikeException, IOException {
if (inHeader) {
if (! conn.read(byteBuffer)) {
return;
}
byteBuffer.position(0);
receiveSize = ((int) (byteBuffer.getLong() & 0xFFFFFFFFFFFFL));
if (receiveSize <= byteBuffer.capacity()) {
byteBuffer.clear();
byteBuffer.limit(receiveSize);
}
else {
byteBuffer = ByteBuffer.allocateDirect(receiveSize);
}
inHeader = false;
}
if (! conn.read(byteBuffer)) {
return;
}
parseResult(byteBuffer);
finish();
}
protected abstract void parseResult(ByteBuffer byteBuffer) throws AerospikeException;
}