/*******************************************************************************
* Copyright 2012-2014 by Aerospike.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
******************************************************************************/
package com.aerospike.client.command;
import java.io.IOException;
import java.util.HashMap;
import com.aerospike.client.AerospikeException;
import com.aerospike.client.Key;
import com.aerospike.client.Log;
import com.aerospike.client.ResultCode;
import com.aerospike.client.cluster.Node;
import com.aerospike.client.policy.Policy;
public final class BatchCommandExists extends MultiCommand {
private final BatchNode.BatchNamespace batchNamespace;
private final Policy policy;
private final HashMap<Key,BatchItem> keyMap;
private final boolean[] existsArray;
public BatchCommandExists(
Node node,
BatchNode.BatchNamespace batchNamespace,
Policy policy,
HashMap<Key,BatchItem> keyMap,
boolean[] existsArray
) {
super(node);
this.batchNamespace = batchNamespace;
this.policy = policy;
this.keyMap = keyMap;
this.existsArray = existsArray;
}
@Override
protected Policy getPolicy() {
return policy;
}
@Override
protected void writeBuffer() throws AerospikeException {
setBatchExists(batchNamespace);
}
/**
* Parse all results in the batch. Add records to shared list.
* If the record was not found, the bins will be null.
*/
protected boolean parseRecordResults(int receiveSize) throws AerospikeException, IOException {
//Parse each message response and add it to the result array
dataOffset = 0;
while (dataOffset < receiveSize) {
if (! valid) {
throw new AerospikeException.QueryTerminated();
}
readBytes(MSG_REMAINING_HEADER_SIZE);
int resultCode = dataBuffer[5] & 0xFF;
// The only valid server return codes are "ok" and "not found".
// If other return codes are received, then abort the batch.
if (resultCode != 0 && resultCode != ResultCode.KEY_NOT_FOUND_ERROR) {
throw new AerospikeException(resultCode);
}
byte info3 = dataBuffer[3];
// If this is the end marker of the response, do not proceed further
if ((info3 & Command.INFO3_LAST) == Command.INFO3_LAST) {
return false;
}
int fieldCount = Buffer.bytesToShort(dataBuffer, 18);
int opCount = Buffer.bytesToShort(dataBuffer, 20);
if (opCount > 0) {
throw new AerospikeException.Parse("Received bins that were not requested!");
}
Key key = parseKey(fieldCount);
BatchItem item = keyMap.get(key);
if (item != null) {
int index = item.getIndex();
existsArray[index] = resultCode == 0;
}
else {
if (Log.debugEnabled()) {
Log.debug("Unexpected batch key returned: " + key.namespace + ',' + Buffer.bytesToHexString(key.digest));
}
}
}
return true;
}
}