| /* |
| 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.edgent.analytics.math3; |
| |
| import java.util.HashMap; |
| |
| import org.apache.edgent.function.Function; |
| |
| import com.google.gson.Gson; |
| import com.google.gson.JsonObject; |
| |
| /** |
| * Aggregation results for a single aggregated variable. |
| */ |
| public class ResultMap extends HashMap<UnivariateAggregate,Double> { |
| private static final long serialVersionUID = 1L; |
| |
| /** |
| * <p>Returns a {@link Function} whose {@code apply(ResultMap)} converts the value |
| * to a {@code JsonObject}. |
| * |
| * <p>The JsonObject property names are the ResultMap's keys and the property |
| * values are the key's associated Double map value. |
| * |
| * <p>An example resulting JsonObject would be |
| * <pre>{ "MEAN":3.75, "MIN":2.0 }</pre>. |
| * |
| * @return the JsonObject |
| */ |
| public static Function<ResultMap,JsonObject> toJsonObject() { |
| Gson gson = new Gson(); |
| return (ResultMap resultMap) -> gson.toJsonTree(resultMap).getAsJsonObject(); |
| } |
| |
| /** |
| * Create a new ResultMap. |
| */ |
| public ResultMap() { |
| } |
| |
| } |