heron/common/src/cpp/metrics/metrics-mgr-st.h

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

//////////////////////////////////////////////////////
//
// metrics-mgr-st.h
//
// Single threaded metrics manager that deals with
// scheduling reporting metrics to the metrics mgr
//////////////////////////////////////////////////////
#ifndef __METRICS_MGR_ST_H_
#define __METRICS_MGR_ST_H_

#include <map>
#include "metrics/imetric.h"
#include "network/network.h"
#include "proto/messages.h"
#include "basics/basics.h"

namespace heron {
namespace proto {
namespace tmaster {
class TMasterLocation;
}
}
}

namespace heron {
namespace common {

using std::shared_ptr;

class MetricsMgrClient;
class IMetric;

class MetricsMgrSt {
 public:
  MetricsMgrSt(sp_int32 _metricsmgr_port, sp_int32 _interval, EventLoop* eventLoop);
  virtual ~MetricsMgrSt();

  void register_metric(const sp_string& _metric_name, shared_ptr<IMetric> _metric);
  void unregister_metric(const sp_string& _metric_name);
  void RefreshTMasterLocation(const proto::tmaster::TMasterLocation& location);
  void RefreshMetricsCacheLocation(const proto::tmaster::MetricsCacheLocation& location);

  /**
      Start MetricsMgrClient object

      @param _my_hostname to build message proto::system::MetricPublisher.
      @param _my_port to build message proto::system::MetricPublisher.
      @param _component to build message proto::system::MetricPublisher.
      @param _instance_id to build message proto::system::MetricPublisher.
  */
  void Start(const sp_string& _my_hostname, sp_int32 _my_port,
             const sp_string& _component_id, const sp_string& _instance_id);

 private:
  void gather_metrics(EventLoop::Status);

  VCallback<EventLoop::Status> timer_cb_;
  std::map<sp_string, shared_ptr<IMetric>> metrics_;
  MetricsMgrClient* client_;
  NetworkOptions options_;
  sp_int64 timerid_;
  EventLoop* eventLoop_;
};
}  // namespace common
}  // namespace heron

#endif