eu.cloudwave.wp5.feedbackhandler.repositories.aggregations.AggregatedMicroserviceClientRequest.java Source code

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Here is the source code for eu.cloudwave.wp5.feedbackhandler.repositories.aggregations.AggregatedMicroserviceClientRequest.java

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/*******************************************************************************
 * Copyright 2015 Software Evolution and Architecture Lab, University of Zurich
 * 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.
 ******************************************************************************/
package eu.cloudwave.wp5.feedbackhandler.repositories.aggregations;

import java.util.Calendar;
import java.util.Date;
import java.util.IntSummaryStatistics;
import java.util.stream.Collectors;

import org.apache.commons.lang3.time.DateUtils;

/*
 * Aggregate Microservice Client Request by given java.util.Calendar integer (default is Calendar.MINUTE)
 */
public class AggregatedMicroserviceClientRequest {

    private int timestampAggregation;
    private MicroserviceClientRequest microserviceClientRequest;

    public AggregatedMicroserviceClientRequest(MicroserviceClientRequest msClientReq, int timestampAggregation) {
        this.timestampAggregation = timestampAggregation;
        this.microserviceClientRequest = msClientReq;
    }

    public AggregatedMicroserviceClientRequest(MicroserviceClientRequest msClienReq) {
        this.microserviceClientRequest = msClienReq;

        // set default timestamp aggregation to minute
        this.timestampAggregation = Calendar.MINUTE;
    }

    public String getCaller() {
        return microserviceClientRequest.getCaller();
    }

    public String getCallee() {
        return microserviceClientRequest.getCallee();
    }

    private int toInt(long myLong) {
        if (myLong < (long) Integer.MAX_VALUE) {
            return (int) myLong;
        } else {
            return Integer.MAX_VALUE;
        }
    }

    public IntSummaryStatistics getStatistics() {
        // Map<Date, Long> groupedRequests = microserviceClientRequest.getReqTimestamps().stream()
        // .collect(Collectors.groupingBy(timestamp -> DateUtils.round(new Date(timestamp), timestampAggregation),
        // Collectors.counting()));

        return microserviceClientRequest.getReqTimestamps().stream()
                .collect(Collectors.groupingBy(
                        timestamp -> DateUtils.round(new Date(timestamp), timestampAggregation),
                        Collectors.counting()))
                .values().stream().mapToInt(p -> toInt(p)).summaryStatistics();
    }
}