FlinkGaugeWrapper.java

/*
 * 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.flink.dropwizard.metrics;

import org.apache.flink.metrics.Gauge;

public class FlinkGaugeWrapper<T> implements com.codahale.metrics.Gauge<T> {
	
	private final Gauge<T> gauge;

	public FlinkGaugeWrapper(Gauge<T> gauge) {
		this.gauge = gauge;
	}

	@Override
	public T getValue() {
		return this.gauge.getValue();
	}

	public static <T> FlinkGaugeWrapper<T> fromGauge(Gauge<?> gauge) {
		@SuppressWarnings("unchecked")
		Gauge<T> typedGauge = (Gauge<T>) gauge;
		return new FlinkGaugeWrapper<>(typedGauge);
	}
}