AtomicLongIncrementalTime2014NonceFactory.java

package org.knowm.xchange.utils.nonce;

import java.util.concurrent.atomic.AtomicLong;

import si.mazi.rescu.SynchronizedValueFactory;

public class AtomicLongIncrementalTime2014NonceFactory implements SynchronizedValueFactory<Long> {

  private static final long START_MILLIS = 1388534400000L; // Jan 1st, 2014 in milliseconds from epoch

  //counter for the nonce
  private final AtomicLong lastNonce = new AtomicLong((System.currentTimeMillis() - START_MILLIS) / 250L);

  @Override
  public Long createValue() {

    return lastNonce.incrementAndGet();

  }
}