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A Java-based performance testing tool for RabbitMQ.

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// Copyright (c) 2007-2023 Broadcom. All Rights Reserved.
// The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
//
// This software, the RabbitMQ Java client library, is triple-licensed under the
// Mozilla Public License 2.0 ("MPL"), the GNU General Public License version 2
// ("GPL") and the Apache License version 2 ("ASL"). For the MPL, please see
// LICENSE-MPL-RabbitMQ. For the GPL, please see LICENSE-GPL2.  For the ASL,
// please see LICENSE-APACHE2.
//
// This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND,
// either express or implied. See the LICENSE file for specific language governing
// rights and limitations of this software.
//
// If you have any questions regarding licensing, please contact us at
// [email protected].
package com.rabbitmq.perf;

import java.time.Duration;

public class TimestampProvider {
  private final boolean useMillis;
  private final boolean isTimestampInHeader;

  public TimestampProvider(boolean useMillis, boolean isTimestampInHeader) {
    this.useMillis = useMillis;
    this.isTimestampInHeader = isTimestampInHeader;
  }

  public boolean isTimestampInHeader() {
    return this.isTimestampInHeader;
  }

  public long getCurrentTime() {
    if (useMillis) {
      return System.currentTimeMillis();
    } else {
      return System.nanoTime();
    }
  }

  public long getDifference(long ts1, long ts2) {
    return Math.abs(ts1 - ts2);
  }

  Duration difference(long ts1, long ts2) {
    long difference = getDifference(ts1, ts2);
    if (useMillis) {
      return Duration.ofMillis(difference);
    } else {
      return Duration.ofNanos(difference);
    }
  }
}