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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.phoenix.monitoring;

/**
 * Implementation used when GlobalMetrics are disabled
 */
public class NoOpGlobalMetricImpl implements GlobalMetric {

    static long NO_SAMPLES = -1;
    static long NO_VALUE = -1;

    @Override
    public long getNumberOfSamples() {
        return NO_SAMPLES;
    }

    @Override
    public MetricType getMetricType() {
        return null;
    }

    @Override
    public long getValue() {
        return NO_VALUE;
    }

    @Override
    public void change(long delta) {

    }

    @Override
    public void increment() {

    }

    @Override
    public void decrement() {

    }

    @Override
    public String getCurrentMetricState() {
        return null;
    }

    @Override
    public void reset() {

    }
}