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package io.vertx.ext.mongo;

import io.vertx.codegen.annotations.DataObject;
import io.vertx.core.json.JsonObject;

import java.util.Objects;

/**
 * Options used to configure downloads from GridFS.
 *
 * @author David Bush
 */
@DataObject
public class GridFsDownloadOptions {

  public static final Integer DEFAULT_REVISION = 0;

  private Integer revision = DEFAULT_REVISION;

  /**
   * Default constructor
   */
  public GridFsDownloadOptions() {
  }

  /**
   * Copy constructor
   *
   * @param options the one to copy
   */
  public GridFsDownloadOptions(GridFsDownloadOptions options) {
    this.revision = options.revision;
  }

  /**
   * Constructor from JSON
   *
   * @param options the JSON
   */
  public GridFsDownloadOptions(JsonObject options) {
    this.revision = options.getInteger("revision");
  }

  /**
   * Convert to JSON
   *
   * @return the JSON
   */
  public JsonObject toJson() {
    JsonObject json = new JsonObject();
    if (revision != null) {
      json.put("revision", revision);
    }

    return json;
  }

  public Integer getRevision() {
    return revision;
  }

  public GridFsDownloadOptions setRevision(Integer revision) {
    this.revision = revision;
    return this;
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    GridFsDownloadOptions that = (GridFsDownloadOptions) o;
    return Objects.equals(revision, that.revision);
  }

  @Override
  public int hashCode() {
    return Objects.hash(revision);
  }

  @Override
  public String toString() {
    return "GridFsDownloadOptions{" +
      "revision=" + revision +
      '}';
  }
}