package com.blacklocus.metrics;

import com.codahale.metrics.Gauge;

import java.util.concurrent.atomic.AtomicReference;

/**
 * A thread-safe {@link Gauge} implementation for any sort of Number.
 *
 * @author Jason Dunkelberger (dirkraft)
 */
public class NumberGauge implements Gauge<Number> {

    private final AtomicReference<Number> value;

    /**
     * Initialized with value of 0.
     */
    public NumberGauge() {
        this(0);
    }

    public NumberGauge(Number initialValue) {
        value = new AtomicReference<Number>(initialValue);
    }

    @Override
    public Number getValue() {
        return value.get();
    }

    public void setValue(Number n) {
        this.value.set(n);
    }
}

@@ -1,8 +1,602 @@
+/**%0A * Copyright 2013 BlackLocus%0A *%0A * Licensed under the Apache License, Version 2.0 (the %22License%22);%0A * you may not use this file except in compliance with the License.%0A * You may obtain a copy of the License at%0A *%0A *    http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0A
 package 

apply license header to NumberGauge.java