org.apache.giraph.metrics.NoOpMetricsRegistry.java Source code

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Here is the source code for org.apache.giraph.metrics.NoOpMetricsRegistry.java

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/*
 * 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.giraph.metrics;

import com.google.common.collect.Maps;
import com.yammer.metrics.core.Counter;
import com.yammer.metrics.core.NoOpCounter;
import com.yammer.metrics.core.NoOpGuage;
import com.yammer.metrics.core.NoOpHistogram;
import com.yammer.metrics.core.NoOpMeter;
import com.yammer.metrics.core.NoOpTimer;
import com.yammer.metrics.core.Gauge;
import com.yammer.metrics.core.Histogram;
import com.yammer.metrics.core.Meter;
import com.yammer.metrics.core.Metric;
import com.yammer.metrics.core.MetricName;
import com.yammer.metrics.core.MetricPredicate;
import com.yammer.metrics.core.MetricsRegistry;
import com.yammer.metrics.core.MetricsRegistryListener;
import com.yammer.metrics.core.Timer;

import java.util.Map;
import java.util.SortedMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

/**
 * An empty MetricsRegistry, used to easily turn off all metrics without
 * affecting client code.
 */
public class NoOpMetricsRegistry extends MetricsRegistry {
    @Override
    public <T> Gauge<T> newGauge(Class<?> klass, String name, Gauge<T> metric) {
        return NoOpGuage.INSTANCE;
    }

    @Override
    public <T> Gauge<T> newGauge(Class<?> klass, String name, String scope, Gauge<T> metric) {
        return NoOpGuage.INSTANCE;
    }

    @Override
    public <T> Gauge<T> newGauge(MetricName metricName, Gauge<T> metric) {
        return NoOpGuage.INSTANCE;
    }

    @Override
    public Counter newCounter(Class<?> klass, String name) {
        return NoOpCounter.INSTANCE;
    }

    @Override
    public Counter newCounter(Class<?> klass, String name, String scope) {
        return NoOpCounter.INSTANCE;
    }

    @Override
    public Counter newCounter(MetricName metricName) {
        return NoOpCounter.INSTANCE;
    }

    @Override
    public Histogram newHistogram(Class<?> klass, String name, boolean biased) {
        return NoOpHistogram.INSTANCE;
    }

    @Override
    public Histogram newHistogram(Class<?> klass, String name, String scope, boolean biased) {
        return NoOpHistogram.INSTANCE;
    }

    @Override
    public Histogram newHistogram(Class<?> klass, String name) {
        return NoOpHistogram.INSTANCE;
    }

    @Override
    public Histogram newHistogram(Class<?> klass, String name, String scope) {
        return NoOpHistogram.INSTANCE;
    }

    @Override
    public Histogram newHistogram(MetricName metricName, boolean biased) {
        return NoOpHistogram.INSTANCE;
    }

    @Override
    public Meter newMeter(Class<?> klass, String name, String eventType, TimeUnit unit) {
        return NoOpMeter.INSTANCE;
    }

    @Override
    public Meter newMeter(Class<?> klass, String name, String scope, String eventType, TimeUnit unit) {
        return NoOpMeter.INSTANCE;
    }

    @Override
    public Meter newMeter(MetricName metricName, String eventType, TimeUnit unit) {
        return NoOpMeter.INSTANCE;
    }

    @Override
    public Timer newTimer(Class<?> klass, String name) {
        return NoOpTimer.INSTANCE;
    }

    @Override
    public Timer newTimer(Class<?> klass, String name, TimeUnit durationUnit, TimeUnit rateUnit) {
        return NoOpTimer.INSTANCE;
    }

    @Override
    public Timer newTimer(Class<?> klass, String name, String scope) {
        return NoOpTimer.INSTANCE;
    }

    @Override
    public Timer newTimer(Class<?> klass, String name, String scope, TimeUnit durationUnit, TimeUnit rateUnit) {
        return NoOpTimer.INSTANCE;
    }

    @Override
    public Timer newTimer(MetricName metricName, TimeUnit durationUnit, TimeUnit rateUnit) {
        return NoOpTimer.INSTANCE;
    }

    @Override
    public Map<MetricName, Metric> allMetrics() {
        return Maps.newHashMap();
    }

    @Override
    public SortedMap<String, SortedMap<MetricName, Metric>> groupedMetrics() {
        return Maps.newTreeMap();
    }

    @Override
    public SortedMap<String, SortedMap<MetricName, Metric>> groupedMetrics(MetricPredicate predicate) {
        return Maps.newTreeMap();
    }

    @Override
    public void shutdown() {
    }

    @Override
    public ScheduledExecutorService newScheduledThreadPool(int poolSize, String name) {
        return null;
    }

    @Override
    public void removeMetric(Class<?> klass, String name) {
    }

    @Override
    public void removeMetric(Class<?> klass, String name, String scope) {
    }

    @Override
    public void removeMetric(MetricName name) {
    }

    @Override
    public void addListener(MetricsRegistryListener listener) {
    }

    @Override
    public void removeListener(MetricsRegistryListener listener) {
    }

    @Override
    protected ConcurrentMap<MetricName, Metric> newMetricsMap() {
        return Maps.newConcurrentMap();
    }
}