Package com.aerospike.client.command

Source Code of com.aerospike.client.command.BatchCommandExists

/*
* Aerospike Client - Java Library
*
* Copyright 2012 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.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;

public final class BatchCommandExists extends MultiCommand {
  private final HashMap<Key,BatchItem> keyMap;
  private final boolean[] existsArray;

  public BatchCommandExists(Node node, HashMap<Key,BatchItem> keyMap, boolean[] existsArray) {
    super(node);
    this.keyMap = keyMap;
    this.existsArray = existsArray;
  }
 
  /**
   * 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
    receiveOffset = 0;
   
    while (receiveOffset < receiveSize) {
        readBytes(MSG_REMAINING_HEADER_SIZE);       
      int resultCode = receiveBuffer[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 = receiveBuffer[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(receiveBuffer, 18);
      int opCount = Buffer.bytesToShort(receiveBuffer, 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;
  }
}
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