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// Copyright (C) 2015 The Android Open Source Project
//
// 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.

package com.google.gerrit.metrics.dropwizard;

import com.google.common.base.Function;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableList;
import com.google.gerrit.metrics.Counter2;
import com.google.gerrit.metrics.Counter3;
import com.google.gerrit.metrics.Description;
import com.google.gerrit.metrics.Field;

/** Generalized implementation of N-dimensional counter metrics. */
class CounterImplN extends BucketedCounter implements BucketedMetric {
  CounterImplN(DropWizardMetricMaker metrics, String name, Description desc, Field... fields) {
    super(metrics, name, desc, fields);
  }

   Counter2 counter2() {
    return new Counter2() {
      @Override
      public void incrementBy(F1 field1, F2 field2, long value) {
        total.incrementBy(value);
        forceCreate(field1, field2).incrementBy(value);
      }

      @Override
      public void remove() {
        doRemove();
      }
    };
  }

   Counter3 counter3() {
    return new Counter3() {
      @Override
      public void incrementBy(F1 field1, F2 field2, F3 field3, long value) {
        total.incrementBy(value);
        forceCreate(field1, field2, field3).incrementBy(value);
      }

      @Override
      public void remove() {
        doRemove();
      }
    };
  }

  @SuppressWarnings("unchecked")
  @Override
  String name(Object key) {
    ImmutableList