| /* |
| * 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.iotdb.db.pipe.processor.aggregate.operator.aggregatedresult.standardstatistics; |
| |
| import org.apache.iotdb.db.pipe.processor.aggregate.operator.aggregatedresult.AggregatedResultOperator; |
| import org.apache.iotdb.db.pipe.processor.aggregate.operator.intermediateresult.CustomizedReadableIntermediateResults; |
| |
| import org.apache.tsfile.enums.TSDataType; |
| import org.apache.tsfile.utils.Pair; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| |
| public class PulseFactorOperator implements AggregatedResultOperator { |
| @Override |
| public String getName() { |
| return "pf"; |
| } |
| |
| @Override |
| public void configureSystemParameters(Map<String, String> systemParams) { |
| // Do nothing |
| } |
| |
| @Override |
| public Set<String> getDeclaredIntermediateValueNames() { |
| return Collections.unmodifiableSet(new HashSet<>(Arrays.asList("abs_max", "sum_x1", "count"))); |
| } |
| |
| @Override |
| public Pair<TSDataType, Object> terminateWindow( |
| TSDataType measurementDataType, CustomizedReadableIntermediateResults intermediateResults) { |
| return new Pair<>( |
| TSDataType.DOUBLE, |
| intermediateResults.getDouble("abs_max") |
| / (intermediateResults.getDouble("sum_x1") / intermediateResults.getInt("count"))); |
| } |
| } |