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Diffstat (limited to 'components/slice-analysis-ms/src/main/java/org/onap/slice/analysis/ms/service/AverageCalculator.java')
-rw-r--r-- | components/slice-analysis-ms/src/main/java/org/onap/slice/analysis/ms/service/AverageCalculator.java | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/components/slice-analysis-ms/src/main/java/org/onap/slice/analysis/ms/service/AverageCalculator.java b/components/slice-analysis-ms/src/main/java/org/onap/slice/analysis/ms/service/AverageCalculator.java new file mode 100644 index 00000000..a003e9c0 --- /dev/null +++ b/components/slice-analysis-ms/src/main/java/org/onap/slice/analysis/ms/service/AverageCalculator.java @@ -0,0 +1,94 @@ +/******************************************************************************* + * ============LICENSE_START======================================================= + * slice-analysis-ms + * ================================================================================ + * Copyright (C) 2020 Wipro Limited. + * ============================================================================== + * Licensed 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. + * ============LICENSE_END========================================================= + * + *******************************************************************************/ + +package org.onap.slice.analysis.ms.service; + +import java.util.ArrayList; +import java.util.List; + +import javax.annotation.PostConstruct; + +import org.onap.slice.analysis.ms.models.MeasurementObject; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.stereotype.Component; + +/** + * This class has utility methods for calculating the average of samples + */ +@Component +public class AverageCalculator { + private static Logger log = LoggerFactory.getLogger(AverageCalculator.class); + private List<String> pmNames; + + @PostConstruct + public void init() { + pmNames = new ArrayList<>(); + pmNames.add("PrbUsedDl"); + pmNames.add("PrbUsedUl"); + } + + /** + * Find average of samples + */ + public List<MeasurementObject> findAverageOfSamples(List<List<MeasurementObject>> samples) { + int numOfSamples = samples.size(); + List<MeasurementObject> result = new ArrayList<>(); + samples.forEach(sample -> + sample.forEach(cellMeasObj -> { + int index = result.indexOf(cellMeasObj); + if(index != -1) { + result.set(index, findSum(result.get(index), cellMeasObj)); + } + else { + result.add(cellMeasObj); + } + }) + ); + return findAvg(result, numOfSamples); + } + + /** + * Calculate the sum + */ + public MeasurementObject findSum(MeasurementObject existing, MeasurementObject current) { + pmNames.forEach(pmName -> { + int newValue = current.getPmData().get(pmName) + existing.getPmData().get(pmName); + existing.getPmData().put(pmName, newValue); + }); + return existing; + } + + /** + * Calculate the average + */ + public List<MeasurementObject> findAvg(List<MeasurementObject> result, int numOfSamples) { + result.forEach(cellMeasObj -> + pmNames.forEach(pmName -> { + int value = (cellMeasObj.getPmData().get(pmName))/numOfSamples; + cellMeasObj.getPmData().put(pmName, value); + }) + ); + log.debug("Average of measurement data samples {}",result); + return result; + } +} + |