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.query;
  
  import com.aerospike.client.AerospikeException;
  import com.aerospike.client.Info;
  import com.aerospike.client.ResultCode;
  import com.aerospike.client.cluster.Node;
  import com.aerospike.client.policy.InfoPolicy;
  
  public final class QueryValidate {
  
  	public static long validateBegin(Node node, String namespace, int timeout) {
  		// Fail when cluster is in migration.
  		InfoPolicy policy = new InfoPolicy();
  		policy.timeout = timeout;
  
  		String result = Info.request(policy, node, "cluster-stable:namespace=" + namespace);
  
  		try {
  			return Long.parseLong(result, 16);
  		}
  		catch (Throwable e) {
  			throw new AerospikeException(ResultCode.QUERY_ABORTED, "Cluster is in migration: " + result);
  		}
  	}
  
  	public static void validate(Node node, String namespace, long expectedKey, int timeout) {
  		if (expectedKey == 0) {
  			return;
  		}
  
  		// Fail when cluster is in migration.
  		long clusterKey = validateBegin(node, namespace, timeout);
  
  		if (clusterKey != expectedKey) {
  			throw new AerospikeException(ResultCode.QUERY_ABORTED, "Cluster is in migration: " + expectedKey + ' ' + clusterKey);
  		}
  	}
  }
  