// Copyright 2014 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.devtools.build.lib.actions;

import com.google.devtools.build.lib.events.ExtendedEventHandler.ProgressLike;

/**
 * This event is fired during the build, when an action is started.
 */
public class ActionStartedEvent implements ProgressLike {
  private final Action action;
  private final long nanoTimeStart;

  /**
   * Create an event for action that has been started.
   *
   * @param action the started action.
   * @param nanoTimeStart the time when the action was started. This allow us to
   * record more accurately the time spend by the action, since we execute some code before
   * deciding if we execute the action or not.
   */
  public ActionStartedEvent(Action action, long nanoTimeStart) {
    this.action = action;
    this.nanoTimeStart = nanoTimeStart;
  }

  /**
   * Returns the associated action.
   */
  public Action getAction() {
    return action;
  }

  public long getNanoTimeStart() {
    return nanoTimeStart;
  }
}