io.vertx.core.metrics.MetricsOptions Maven / Gradle / Ivy

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/*
 * Copyright (c) 2011-2019 Contributors to the Eclipse Foundation
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
 * which is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
 */

package io.vertx.core.metrics;

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

/**
 * Vert.x metrics base configuration, this class can be extended by provider implementations to configure
 * those specific implementations.
 *
 * @author Julien Viet
 */
@DataObject
@JsonGen(publicConverter = false)
public class MetricsOptions {

  /**
   * The default value of metrics enabled false
   */
  public static final boolean DEFAULT_METRICS_ENABLED = false;

  private boolean enabled;
  private JsonObject json; // Keep a copy of the original json, so we don't lose info when building options subclasses

  /**
   * Default constructor
   */
  public MetricsOptions() {
    enabled = DEFAULT_METRICS_ENABLED;
  }

  /**
   * Copy constructor
   *
   * @param other The other {@link MetricsOptions} to copy when creating this
   */
  public MetricsOptions(MetricsOptions other) {
    enabled = other.isEnabled();
  }

  /**
   * Create an instance from a {@link io.vertx.core.json.JsonObject}
   *
   * @param json the JsonObject to create it from
   */
  public MetricsOptions(JsonObject json) {
    this();
    MetricsOptionsConverter.fromJson(json, this);
    this.json = json.copy();
  }

  /**
   * Will metrics be enabled on the Vert.x instance?
   *
   * @return true if enabled, false if not.
   */
  public boolean isEnabled() {
    return enabled;
  }

  /**
   * Set whether metrics will be enabled on the Vert.x instance.
   *
   * @param enable true if metrics enabled, or false if not.
   * @return a reference to this, so the API can be used fluently
   */
  public MetricsOptions setEnabled(boolean enable) {
    this.enabled = enable;
    return this;
  }

  public JsonObject toJson() {
    JsonObject json = this.json;
    if (json == null) {
      json = new JsonObject();
      MetricsOptionsConverter.toJson(this, json);
    }
    return json;
  }

  @Override
  public String toString() {
    return "MetricsOptions{" +
      "enabled=" + enabled +
      ", json=" + json +
      '}';
  }
}