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.examples;
  
  import com.aerospike.client.AerospikeException;
  import com.aerospike.client.IAerospikeClient;
  import com.aerospike.client.Key;
  import com.aerospike.client.Record;
  import com.aerospike.client.async.EventLoop;
  import com.aerospike.client.listener.RecordSequenceListener;
  import com.aerospike.client.policy.ScanPolicy;
  import com.aerospike.client.util.Util;
  
  public class AsyncScan extends AsyncExample {
  
  	private int recordCount = 0;
  
  	/**
  	 * Asynchronous scan example.
  	 */
  	@Override
  	public void runExample(IAerospikeClient client, EventLoop eventLoop) {
  		console.info("Asynchronous scan: namespace=" + params.namespace + " set=" + params.set);
  		recordCount = 0;
  		final long begin = System.currentTimeMillis();
  		ScanPolicy policy = new ScanPolicy();
  		client.scanAll(eventLoop, new RecordSequenceListener() {
  
  			@Override
  			public void onRecord(Key key, Record record) throws AerospikeException {
  				recordCount++;
  
  				if ((recordCount % 10000) == 0) {
  					console.info("Records " + recordCount);
  				}
  			}
  
  			@Override
  			public void onSuccess() {
  				long end = System.currentTimeMillis();
  				double seconds =  (double)(end - begin) / 1000.0;
  				console.info("Total records returned: " + recordCount);
  				console.info("Elapsed time: " + seconds + " seconds");
  				double performance = Math.round((double)recordCount / seconds);
  				console.info("Records/second: " + performance);
  				notifyComplete();
  			}
  
  			@Override
  			public void onFailure(AerospikeException e) {
  				console.error("Scan failed: " + Util.getErrorMessage(e));
  				notifyComplete();
  			}
  
  		}, policy, params.namespace, params.set);
  
  		// Wait until scan finishes before closing cluster.  This is only necessary
  		// when running the async scan example from the command line (which closes the
  		// cluster after control is relinquished by this example).
  
  		// The async scan will continue to run after cluster close if the scan was
  		// initiated before cluster close.  The problem is cluster close shuts down
  		// cluster tending immediately so any data partition migrations will not be
  		// received by the client when performing the scan.
  		waitTillComplete();
  	}
  }
  