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.common.base.Joiner;
      18             : import com.google.common.collect.ImmutableList;
      19             : import com.google.gerrit.metrics.Description;
      20             : import com.google.gerrit.metrics.Field;
      21             : import com.google.gerrit.metrics.Timer2;
      22             : import com.google.gerrit.metrics.Timer3;
      23             : import java.util.concurrent.TimeUnit;
      24             : import java.util.function.Function;
      25             : 
      26             : /** Generalized implementation of N-dimensional timer metrics. */
      27             : class TimerImplN extends BucketedTimer implements BucketedMetric {
      28             :   TimerImplN(DropWizardMetricMaker metrics, String name, Description desc, Field<?>... fields) {
      29          15 :     super(metrics, name, desc, fields);
      30          15 :   }
      31             : 
      32             :   @SuppressWarnings("unchecked")
      33             :   <F1, F2> Timer2<F1, F2> timer2() {
      34          15 :     return new Timer2<>(name, (Field<F1>) fields[0], (Field<F2>) fields[1]) {
      35             :       @Override
      36             :       protected void doRecord(F1 field1, F2 field2, long value, TimeUnit unit) {
      37          15 :         total.record(value, unit);
      38          15 :         forceCreate(field1, field2).record(value, unit);
      39          15 :       }
      40             : 
      41             :       @Override
      42             :       public void remove() {
      43           0 :         doRemove();
      44           0 :       }
      45             :     };
      46             :   }
      47             : 
      48             :   @SuppressWarnings("unchecked")
      49             :   <F1, F2, F3> Timer3<F1, F2, F3> timer3() {
      50          15 :     return new Timer3<>(name, (Field<F1>) fields[0], (Field<F2>) fields[1], (Field<F3>) fields[2]) {
      51             :       @Override
      52             :       protected void doRecord(F1 field1, F2 field2, F3 field3, long value, TimeUnit unit) {
      53          15 :         total.record(value, unit);
      54          15 :         forceCreate(field1, field2, field3).record(value, unit);
      55          15 :       }
      56             : 
      57             :       @Override
      58             :       public void remove() {
      59           0 :         doRemove();
      60           0 :       }
      61             :     };
      62             :   }
      63             : 
      64             :   @SuppressWarnings("unchecked")
      65             :   @Override
      66             :   String name(Object key) {
      67          15 :     ImmutableList<Object> keyList = (ImmutableList<Object>) key;
      68          15 :     String[] parts = new String[fields.length];
      69          15 :     for (int i = 0; i < fields.length; i++) {
      70          15 :       Function<Object, String> fmt = (Function<Object, String>) fields[i].formatter();
      71             : 
      72          15 :       parts[i] = fmt.apply(keyList.get(i)).replace('/', '-');
      73             :     }
      74          15 :     return Joiner.on('/').join(parts);
      75             :   }
      76             : }