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// Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
//  This source code is licensed under both the GPLv2 (found in the
//  COPYING file in the root directory) and Apache 2.0 License
//  (found in the LICENSE.Apache file in the root directory).

package org.rocksdb;

import java.util.Objects;

/**
 * Java representation of FileOperationInfo struct from include/rocksdb/listener.h
 */
public class FileOperationInfo {
  private final String path;
  private final long offset;
  private final long length;
  private final long startTimestamp;
  private final long duration;
  private final Status status;

  /**
   * Access is private as this will only be constructed from
   * C++ via JNI.
   */
  FileOperationInfo(final String path, final long offset, final long length,
      final long startTimestamp, final long duration, final Status status) {
    this.path = path;
    this.offset = offset;
    this.length = length;
    this.startTimestamp = startTimestamp;
    this.duration = duration;
    this.status = status;
  }

  /**
   * Get the file path.
   *
   * @return the file path.
   */
  public String getPath() {
    return path;
  }

  /**
   * Get the offset.
   *
   * @return the offset.
   */
  public long getOffset() {
    return offset;
  }

  /**
   * Get the length.
   *
   * @return the length.
   */
  public long getLength() {
    return length;
  }

  /**
   * Get the start timestamp (in nanoseconds).
   *
   * @return the start timestamp.
   */
  public long getStartTimestamp() {
    return startTimestamp;
  }

  /**
   * Get the operation duration (in nanoseconds).
   *
   * @return the operation duration.
   */
  public long getDuration() {
    return duration;
  }

  /**
   * Get the status.
   *
   * @return the status.
   */
  public Status getStatus() {
    return status;
  }

  @Override
  public boolean equals(final Object o) {
    if (this == o)
      return true;
    if (o == null || getClass() != o.getClass())
      return false;
    FileOperationInfo that = (FileOperationInfo) o;
    return offset == that.offset && length == that.length && startTimestamp == that.startTimestamp
        && duration == that.duration && Objects.equals(path, that.path)
        && Objects.equals(status, that.status);
  }

  @Override
  public int hashCode() {
    return Objects.hash(path, offset, length, startTimestamp, duration, status);
  }

  @Override
  public String toString() {
    return "FileOperationInfo{"
        + "path='" + path + '\'' + ", offset=" + offset + ", length=" + length + ", startTimestamp="
        + startTimestamp + ", duration=" + duration + ", status=" + status + '}';
  }
}