content: /**
   * Copyright (C) 2010-2016 eBusiness Information, Excilys Group
   * Copyright (C) 2016-2020 the AndroidAnnotations 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 org.androidannotations.internal.process;
  
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import org.androidannotations.logger.Logger;
  import org.androidannotations.logger.LoggerFactory;
  
  public class TimeStats {
  
  	private static final Logger LOGGER = LoggerFactory.getLogger(TimeStats.class);
  
  	private final Map<String, Long> measures = new HashMap<>();
  	private final List<Duration> durations = new ArrayList<>();
  
  	private static class Duration implements Comparable<Duration> {
  		public final String key;
  		public final long durationInMs;
  
  		Duration(String key, long durationInMs) {
  			this.key = key;
  			this.durationInMs = durationInMs;
  		}
  
  		@Override
  		public int compareTo(Duration o) {
  			return (int) (o.durationInMs - durationInMs);
  		}
  	}
  
  	public void start(String key) {
  		long start = System.currentTimeMillis();
  		measures.put(key, start);
  	}
  
  	public void stop(String key) {
  		Long start = measures.remove(key);
  		if (start != null) {
  			long end = System.currentTimeMillis();
  			long duration = end - start;
  			durations.add(new Duration(key, duration));
  		}
  	}
  
  	@Override
  	public String toString() {
  		StringBuilder sb = new StringBuilder();
  		sb.append("Time measurements: ");
  
  		Collections.sort(durations);
  		for (Duration duration : durations) {
  			sb.append("[") //
  					.append(duration.key) //
  					.append(" = ") //
  					.append(duration.durationInMs) //
  					.append(" ms], ");
  		}
  
  		return sb.toString();
  	}
  
  	public void logStats() {
  		LOGGER.info(toString());
  	}
  
  	public void clear() {
  		measures.clear();
  		durations.clear();
  	}
  
  }
  