/** * 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.hadoop.metrics2.sink.storm; public class NumberUtil { private NumberUtil() { } public static Double convertValueToDouble(Object value) { if (value instanceof Number) { return ((Number) value).doubleValue(); } else if (value instanceof String) { try { return Double.parseDouble((String) value); } catch (NumberFormatException e) { throw e; } } else { return null; } } }