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path: root/src/org/traccar/reports/Summary.java
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/*
 * Copyright 2016 Anton Tananaev (anton@traccar.org)
 * Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
 *
 * 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 org.traccar.reports;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Date;

import org.jxls.transform.poi.PoiTransformer;
import org.jxls.util.JxlsHelper;
import org.traccar.Context;
import org.traccar.model.Position;
import org.traccar.reports.model.SummaryReport;

public final class Summary {

    private Summary() {
    }

    private static SummaryReport calculateSummaryResult(long deviceId, Date from, Date to) throws SQLException {
        SummaryReport result = new SummaryReport();
        result.setDeviceId(deviceId);
        result.setDeviceName(Context.getIdentityManager().getDeviceById(deviceId).getName());
        Collection<Position> positions = Context.getDataManager().getPositions(deviceId, from, to);
        if (positions != null && !positions.isEmpty()) {
            Position firstPosition = null;
            Position previousPosition = null;
            double speedSum = 0;
            for (Position position : positions) {
                if (firstPosition == null) {
                    firstPosition = position;
                }
                if (previousPosition != null
                        && position.getAttributes().get(Position.KEY_IGNITION) != null
                        && Boolean.parseBoolean(position.getAttributes().get(Position.KEY_IGNITION).toString())
                        && previousPosition.getAttributes().get(Position.KEY_IGNITION) != null
                        && Boolean.parseBoolean(previousPosition.getAttributes()
                                .get(Position.KEY_IGNITION).toString())) {
                    result.addEngineHours(position.getFixTime().getTime()
                            - previousPosition.getFixTime().getTime());
                }
                previousPosition = position;
                speedSum += position.getSpeed();
                result.setMaxSpeed(position.getSpeed());
            }
            boolean ignoreOdometer = Context.getDeviceManager()
                    .lookupConfigBoolean(deviceId, "report.ignoreOdometer", false);
            result.setDistance(ReportUtils.calculateDistance(firstPosition, previousPosition, !ignoreOdometer));
            result.setAverageSpeed(speedSum / positions.size());
        }
        return result;
    }

    public static Collection<SummaryReport> getObjects(long userId, Collection<Long> deviceIds,
            Collection<Long> groupIds, Date from, Date to) throws SQLException {
        ArrayList<SummaryReport> result = new ArrayList<>();
        for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
            Context.getPermissionsManager().checkDevice(userId, deviceId);
            result.add(calculateSummaryResult(deviceId, from, to));
        }
        return result;
    }

    public static void getExcel(OutputStream outputStream,
            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
            Date from, Date to) throws SQLException, IOException {
        Collection<SummaryReport> summaries = getObjects(userId, deviceIds, groupIds, from, to);
        String templatePath = Context.getConfig().getString("report.templatesPath",
                "templates/export/");
        try (InputStream inputStream = new FileInputStream(templatePath + "/summary.xlsx")) {
            org.jxls.common.Context jxlsContext = PoiTransformer.createInitialContext();
            jxlsContext.putVar("summaries", summaries);
            jxlsContext.putVar("from", from);
            jxlsContext.putVar("to", to);
            JxlsHelper.getInstance().setUseFastFormulaProcessor(false)
                    .processTemplate(inputStream, outputStream, jxlsContext);
        }
    }
}