Java Context.close方法代码示例

import com.codahale.metrics.Timer.Context; //导入方法依赖的package包/类
@Override
public void handleRequest(HttpServerExchange exchange) throws Exception {
    Context context = timer.time();
    try {
        handler.handleRequest(exchange);
    } finally {
        context.close();
    }
}
 

import com.codahale.metrics.Timer.Context; //导入方法依赖的package包/类
public Deferred<EnumMap<UniqueIdType, Map<String, String>>> testLookup(final TSDBMetricMeta meta) {
	final Context ctx = resolveUidsTimer.time();
	final EnumMap<UniqueIdType, Map<String, String>> map = new EnumMap<UniqueIdType, Map<String, String>>(UniqueIdType.class);
	final TSDBMetricMeta m = metricMetas.get(meta.getTsuid());
	map.put(UniqueIdType.METRIC, Collections.singletonMap(m.getMetricName(), m.getMetricUid()));
	map.put(UniqueIdType.TAGK, m.getTagKeyUids());
	map.put(UniqueIdType.TAGV, m.getTagValueUids());
	ctx.close();
	return Deferred.fromResult(map);
}
 

import com.codahale.metrics.Timer.Context; //导入方法依赖的package包/类
@Override
protected final void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	log(req);

	Context context = getTimer(req).time();
	try {
		get(req, resp);
	} finally {
		context.close();
	}
}
 

import com.codahale.metrics.Timer.Context; //导入方法依赖的package包/类
@Override
protected final void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	log(req);

	Context context = getTimer(req).time();
	try {
		post(req, resp);
	} finally {
		context.close();
	}
}
 

import com.codahale.metrics.Timer.Context; //导入方法依赖的package包/类
@Override
protected final void doPut(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	log(req);

	Context context = getTimer(req).time();
	try {
		put(req, resp);
	} finally {
		context.close();
	}
}
 

import com.codahale.metrics.Timer.Context; //导入方法依赖的package包/类
@Override
protected void doDelete(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
	log(req);

	Context context = getTimer(req).time();
	try {
		delete(req, resp);
	} finally {
		context.close();
	}
}
 

import com.codahale.metrics.Timer.Context; //导入方法依赖的package包/类
@Override
protected void onClose(CloseReason closereason) {
    edm.countOpened.ifPresent(Counter::dec);
    Context ctx = (Context) getJsrSession().getUserProperties().get(this.getClass().getName());
    if (ctx != null)
        ctx.close();
    super.onClose(closereason);
}
 

import com.codahale.metrics.Timer.Context; //导入方法依赖的package包/类
public synchronized void rebalanceCurrentCluster(List<LiveInstance> liveInstances) {
  Context context = _rebalanceTimer.time();
  LOGGER.info("AutoRebalanceLiveInstanceChangeListener.onLiveInstanceChange() wakes up!");
  try {
    _numLiveInstances.inc(liveInstances.size() - _numLiveInstances.getCount());
    if (!_helixManager.isLeader()) {
      LOGGER.info("Not leader, do nothing!");
      return;
    }
    if (!_helixMirrorMakerManager.isAutoBalancingEnabled()) {
      LOGGER.info("Is leader, but auto-balancing is disabled, do nothing!");
      return;
    }
    if (liveInstances.isEmpty()) {
      LOGGER.info("No live instances, do nothing!");
      return;
    }
    final Map<String, Set<TopicPartition>> instanceToTopicPartitionMap =
        HelixUtils.getInstanceToTopicPartitionsMap(_helixManager);
    Set<TopicPartition> unassignedTopicPartitions =
        HelixUtils.getUnassignedPartitions(_helixManager);
    if (instanceToTopicPartitionMap.isEmpty() && unassignedTopicPartitions.isEmpty()) {
      LOGGER.info("No topic got assigned yet, do nothing!");
      return;
    }
    Set<InstanceTopicPartitionHolder> newAssignment =
        rescaleInstanceToTopicPartitionMap(liveInstances, instanceToTopicPartitionMap,
            unassignedTopicPartitions);
    if (newAssignment == null) {
      LOGGER.info("No Live Instances got changed, do nothing!");
      return;
    }
    LOGGER.info("Trying to fetch IdealStatesMap from current assignment!");
    Map<String, IdealState> idealStatesFromAssignment =
        HelixUtils.getIdealStatesFromAssignment(newAssignment);
    LOGGER.info("Trying to assign new IdealStatesMap!");
    assignIdealStates(_helixManager, idealStatesFromAssignment);

    _helixMirrorMakerManager.updateCurrentServingInstance();
    _rebalanceRate.mark();
  } finally {
    context.close();
  }
}