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.metrics.dropwizard;
      16             : 
      17             : import com.google.gerrit.metrics.Description;
      18             : import com.google.gerrit.metrics.Field;
      19             : import com.google.gerrit.metrics.Histogram1;
      20             : import java.util.function.Function;
      21             : 
      22             : /** Optimized version of {@link BucketedHistogram} for single dimension. */
      23             : class HistogramImpl1<F1> extends BucketedHistogram implements BucketedMetric {
      24             :   HistogramImpl1(DropWizardMetricMaker metrics, String name, Description desc, Field<F1> field1) {
      25          15 :     super(metrics, name, desc, field1);
      26          15 :   }
      27             : 
      28             :   Histogram1<F1> histogram1() {
      29          15 :     return new Histogram1<>() {
      30             :       @Override
      31             :       public void record(F1 field1, long value) {
      32           7 :         total.record(value);
      33           7 :         forceCreate(field1).record(value);
      34           7 :       }
      35             : 
      36             :       @Override
      37             :       public void remove() {
      38           0 :         doRemove();
      39           0 :       }
      40             :     };
      41             :   }
      42             : 
      43             :   @Override
      44             :   String name(Object field1) {
      45             :     @SuppressWarnings("unchecked")
      46           7 :     Function<Object, String> fmt = (Function<Object, String>) fields[0].formatter();
      47             : 
      48           7 :     return fmt.apply(field1).replace('/', '-');
      49             :   }
      50             : }