/*
* Copyright 2012-2014 Aerospike, Inc.
*
* Portions may be licensed to Aerospike, Inc. under one or more contributor
* license agreements.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.aerospike.client.command;
import java.io.IOException;
import java.util.Arrays;
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 batch;
private final Policy policy;
private final Key[] keys;
private final boolean[] existsArray;
private int index;
public BatchCommandExists(
Node node,
BatchNode.BatchNamespace batch,
Policy policy,
Key[] keys,
boolean[] existsArray
) {
super(node);
this.batch = batch;
this.policy = policy;
this.keys = keys;
this.existsArray = existsArray;
}
@Override
protected Policy getPolicy() {
return policy;
}
@Override
protected void writeBuffer() throws AerospikeException {
setBatchExists(keys, batch);
}
/**
* 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);
int offset = batch.offsets[index++];
if (Arrays.equals(key.digest, keys[offset].digest)) {
existsArray[offset] = resultCode == 0;
}
else {
if (Log.warnEnabled()) {
Log.warn("Unexpected batch key returned: " + key.namespace + ',' + Buffer.bytesToHexString(key.digest) + ',' + index + ',' + offset);
}
}
}
return true;
}
}