Timers.java
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	package ch.epfl.lca1.medco.util;

	import com.eclipsesource.json.Json;
	import com.eclipsesource.json.JsonObject;
	import org.springframework.util.StopWatch;

	import java.io.StringWriter;
	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.List;
	import java.util.Map;

	/**
	* Created by misbach on 18.07.17.
	*/
	public class Timers {

	private static Map<String, StopWatch> timers = new HashMap<>();
	private static List<String> additionalTimes = new ArrayList<>();

	public static StopWatch get(String stopWatchName) {
	if (!timers.containsKey(stopWatchName)) {
	timers.put(stopWatchName, new StopWatch(stopWatchName));
	}
	return timers.get(stopWatchName);
	}

	public static void addAdditionalTimes(String times) {
	if (times != null) {
	additionalTimes.add(times);
	}
	}

	/**
	* output: stopwatch_name / task_name ; etc
	* time_ms ; etc
	* @return
	*/
	public static JsonObject generateFullReport() {
	JsonObject times = Json.object();

	for (String timerName : timers.keySet()) {
	JsonObject timerJson = Json.object();
	for (StopWatch.TaskInfo task : timers.get(timerName).getTaskInfo()) {
	timerJson.add(task.getTaskName(), task.getTimeMillis());
	}
	times.add(timerName, timerJson);
	}

	if (additionalTimes != null) {
	for (String additionalTime : additionalTimes) {
	JsonObject additionalTimesParsed = Json.parse(additionalTime).asObject();
	times.merge(additionalTimesParsed);
	}
	}
	return times;
	}

	public static void resetTimers() {
	timers.clear();
	additionalTimes.clear();
	}
	}