YugabyteDB (2.13.1.0-b60, 21121d69985fbf76aa6958d8f04a9bfa936293b5)

// 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.

//

// The following only applies to changes made to this file as part of YugaByte development.

//

// Portions Copyright (c) YugaByte, Inc.

//

// 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.

//

#include "yb/server/glog_metrics.h"

#include <glog/logging.h>

#include "yb/util/metrics.h"

METRIC_DEFINE_counter(server, glog_info_messages,

                      "INFO-level Log Messages", yb::MetricUnit::kMessages,

                      "Number of INFO-level log messages emitted by the application.");

METRIC_DEFINE_counter(server, glog_warning_messages,

                      "WARNING-level Log Messages", yb::MetricUnit::kMessages,

                      "Number of WARNING-level log messages emitted by the application.");

METRIC_DEFINE_counter(server, glog_error_messages,

                      "ERROR-level Log Messages", yb::MetricUnit::kMessages,

                      "Number of ERROR-level log messages emitted by the application.");

namespace yb {

class MetricsSink : public google::LogSink {

 public:

  explicit MetricsSink(const scoped_refptr<MetricEntity>& entity) :

    info_counter_(METRIC_glog_info_messages.Instantiate(entity)),

    warning_counter_(METRIC_glog_warning_messages.Instantiate(entity)),

    error_counter_(METRIC_glog_error_messages.Instantiate(entity)) {

  }

  virtual void send(google::LogSeverity severity, const char* full_filename,

                    const char* base_filename, int line,

                    const struct ::tm* tm_time,

                    const char* message, size_t message_len) override {

    Counter* c;

    switch (severity) {

      case google::INFO:

        c = info_counter_.get();

        break;

      case google::WARNING:

        c = warning_counter_.get();

        break;

      case google::ERROR:

        c = error_counter_.get();

        break;

      default:

        return;

    }

    c->Increment();

  }

 private:

  scoped_refptr<Counter> info_counter_;

  scoped_refptr<Counter> warning_counter_;

  scoped_refptr<Counter> error_counter_;

};

ScopedGLogMetrics::ScopedGLogMetrics(const scoped_refptr<MetricEntity>& entity)

  : sink_(new MetricsSink(entity)) {

  google::AddLogSink(sink_.get());

}

ScopedGLogMetrics::~ScopedGLogMetrics() {

  google::RemoveLogSink(sink_.get());

}

} // namespace yb