/*
 * 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.
 */
package org.apache.calcite.avatica.metrics.dropwizard3;

import org.apache.calcite.avatica.metrics.Counter;
import org.apache.calcite.avatica.metrics.Gauge;
import org.apache.calcite.avatica.metrics.Histogram;
import org.apache.calcite.avatica.metrics.Meter;
import org.apache.calcite.avatica.metrics.MetricsSystem;
import org.apache.calcite.avatica.metrics.Timer;

import com.codahale.metrics.MetricRegistry;

import java.util.Objects;

/**
 * Dropwizard Metrics implementation of {@link MetricsSystem}.
 */
public class DropwizardMetricsSystem implements MetricsSystem {

  private final MetricRegistry registry;

  public DropwizardMetricsSystem(MetricRegistry registry) {
    this.registry = Objects.requireNonNull(registry);
  }

  @Override public Timer getTimer(String name) {
    return new DropwizardTimer(registry.timer(name));
  }

  @Override public Histogram getHistogram(String name) {
    return new DropwizardHistogram(registry.histogram(name));
  }

  @Override public Meter getMeter(String name) {
    return new DropwizardMeter(registry.meter(name));
  }

  @Override public Counter getCounter(String name) {
    return new DropwizardCounter(registry.counter(name));
  }

  @Override public <T> void register(String name, Gauge<T> gauge) {
    registry.register(name, new DropwizardGauge<T>(gauge));
  }
}

// End DropwizardMetricsSystem.java
