| /** |
| * 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 com.datatorrent.lib.metric.max; |
| |
| import java.io.Serializable; |
| import java.util.Collection; |
| |
| import com.datatorrent.api.annotation.Name; |
| import com.datatorrent.common.metric.SingleMetricAggregator; |
| |
| /** |
| * @since 3.1.0 |
| */ |
| |
| @Name("max") |
| public class FloatMaxAggregator implements SingleMetricAggregator, Serializable |
| { |
| @Override |
| public Object aggregate(Collection<Object> metricValues) |
| { |
| Float max = null; |
| for (Object value : metricValues) { |
| float fval = ((Number)value).floatValue(); |
| if (max == null || fval > max) { |
| max = fval; |
| } |
| } |
| return max; |
| } |
| |
| private static final long serialVersionUID = 201504081327L; |
| } |