content: /*
   * Copyright 2012-2023 Aerospike, Inc.
   *
   * Portions may be licensed to Aerospike, Inc. under one or more contributor
   * license agreements WHICH ARE COMPATIBLE WITH THE APACHE LICENSE, VERSION 2.0.
   *
   * 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 com.aerospike.client.AerospikeException;
  import com.aerospike.client.Key;
  import com.aerospike.client.Record;
  import com.aerospike.client.ScanCallback;
  import com.aerospike.client.cluster.Cluster;
  import com.aerospike.client.metrics.LatencyType;
  import com.aerospike.client.policy.ScanPolicy;
  import com.aerospike.client.query.PartitionTracker;
  import com.aerospike.client.query.PartitionTracker.NodePartitions;
  
  public final class ScanPartitionCommand extends MultiCommand {
  	private final ScanPolicy scanPolicy;
  	private final String setName;
  	private final String[] binNames;
  	private final ScanCallback callback;
  	private final long taskId;
  	private final PartitionTracker tracker;
  	private final NodePartitions nodePartitions;
  
  	public ScanPartitionCommand(
  		Cluster cluster,
  		ScanPolicy scanPolicy,
  		String namespace,
  		String setName,
  		String[] binNames,
  		ScanCallback callback,
  		long taskId,
  		PartitionTracker tracker,
  		NodePartitions nodePartitions
  	) {
  		super(cluster, scanPolicy, nodePartitions.node, namespace, tracker.socketTimeout, tracker.totalTimeout);
  		this.scanPolicy = scanPolicy;
  		this.setName = setName;
  		this.binNames = binNames;
  		this.callback = callback;
  		this.taskId = taskId;
  		this.tracker = tracker;
  		this.nodePartitions = nodePartitions;
  	}
  
  	@Override
  	public void execute() {
  		try {
  			executeCommand();
  		}
  		catch (AerospikeException ae) {
  			if (! tracker.shouldRetry(nodePartitions, ae)) {
  				throw ae;
  			}
  		}
  	}
  
  	@Override
  	protected LatencyType getLatencyType() {
  		return LatencyType.QUERY;
  	}
  
  	@Override
  	protected void writeBuffer() {
  		setScan(cluster, scanPolicy, namespace, setName, binNames, taskId, nodePartitions);
  	}
  
  	@Override
  	protected boolean parseRow() {
  		Key key = parseKey(fieldCount, null);
  
  		if ((info3 & Command.INFO3_PARTITION_DONE) != 0) {
  			// When an error code is received, mark partition as unavailable
  			// for the current round. Unavailable partitions will be retried
  			// in the next round. Generation is overloaded as partitionId.
  			if (resultCode != 0) {
  				tracker.partitionUnavailable(nodePartitions, generation);
  			}
  			return true;
  		}
  
  		if (resultCode != 0) {
  			throw new AerospikeException(resultCode);
  		}
  
  		Record record = parseRecord();
  
  		if (! valid) {
  			throw new AerospikeException.ScanTerminated();
  		}
  
  		if (tracker.allowRecord(nodePartitions)) {
  			callback.scanCallback(key, record);
  			tracker.setDigest(nodePartitions, key);
  		}
  		return true;
  	}
  }
  