Line data    Source code

       1             : // Copyright (C) 2015 The Android Open Source Project
       2             : //
       3             : // Licensed under the Apache License, Version 2.0 (the "License");
       4             : // you may not use this file except in compliance with the License.
       5             : // You may obtain a copy of the License at
       6             : //
       7             : // http://www.apache.org/licenses/LICENSE-2.0
       8             : //
       9             : // Unless required by applicable law or agreed to in writing, software
      10             : // distributed under the License is distributed on an "AS IS" BASIS,
      11             : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             : // See the License for the specific language governing permissions and
      13             : // limitations under the License.
      14             : 
      15             : package com.google.gerrit.httpd;
      16             : 
      17             : import com.google.gerrit.metrics.Counter1;
      18             : import com.google.gerrit.metrics.Description;
      19             : import com.google.gerrit.metrics.Field;
      20             : import com.google.gerrit.metrics.MetricMaker;
      21             : import com.google.gerrit.server.logging.Metadata;
      22             : import com.google.inject.Inject;
      23             : import com.google.inject.Singleton;
      24             : 
      25             : @Singleton
      26             : public class RequestMetrics {
      27             :   final Counter1<Integer> errors;
      28             :   final Counter1<Integer> successes;
      29             : 
      30             :   @Inject
      31          99 :   public RequestMetrics(MetricMaker metricMaker) {
      32          99 :     Field<Integer> statusCodeField =
      33          99 :         Field.ofInteger("status", Metadata.Builder::httpStatus)
      34          99 :             .description("HTTP status code")
      35          99 :             .build();
      36             : 
      37          99 :     errors =
      38          99 :         metricMaker.newCounter(
      39             :             "http/server/error_count",
      40          99 :             new Description("Rate of REST API error responses").setRate().setUnit("errors"),
      41             :             statusCodeField);
      42          99 :     successes =
      43          99 :         metricMaker.newCounter(
      44             :             "http/server/success_count",
      45          99 :             new Description("Rate of REST API success responses").setRate().setUnit("successes"),
      46             :             statusCodeField);
      47          99 :   }
      48             : }