content: /*
   * Copyright (C) 2016 The Android Open Source Project
   *
   * 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.android.exoplayer2.playbacktests.gts;
  
  import android.app.Instrumentation;
  import androidx.annotation.Size;
  
  /** Metric logging interface for playback tests. */
  /* package */ interface MetricsLogger {
  
    interface Factory {
      MetricsLogger create(
          Instrumentation instrumentation, @Size(max = 23) String tag, String streamName);
    }
  
    Factory DEFAULT_FACTORY = LogcatMetricsLogger.FACTORY;
  
    String KEY_FRAMES_DROPPED_COUNT = "frames_dropped_count";
    String KEY_FRAMES_RENDERED_COUNT = "frames_rendered_count";
    String KEY_FRAMES_SKIPPED_COUNT = "frames_skipped_count";
    String KEY_MAX_CONSECUTIVE_FRAMES_DROPPED_COUNT = "maximum_consecutive_frames_dropped_count";
    String KEY_TEST_NAME = "test_name";
    String KEY_IS_CDD_LIMITED_RETRY = "is_cdd_limited_retry";
  
    /**
     * Logs an int metric provided from a test.
     *
     * @param key The key of the metric to be logged.
     * @param value The value of the metric to be logged.
     */
    void logMetric(String key, int value);
  
    /**
     * Logs a string metric provided from a test.
     *
     * @param key The key of the metric to be logged.
     * @param value The value of the metric to be logged.
     */
    void logMetric(String key, String value);
  
    /**
     * Logs a boolean metric provided from a test.
     *
     * @param key The key of the metric to be logged.
     * @param value The value of the metric to be logged.
     */
    void logMetric(String key, boolean value);
  
    /** Closes the logger. */
    void close();
  }
  