From c613143105d9f7c898dd3fb236d683b76cf8a42c Mon Sep 17 00:00:00 2001
From: Abyss777 <abyss@fox5.ru>
Date: Mon, 17 Oct 2016 14:02:23 +0500
Subject: - Implement export reports to excel

- Migrate csv export to /api/positions
---
 src/org/traccar/reports/Events.java | 87 ++++++++++++++++++++++++++++++++++---
 1 file changed, 80 insertions(+), 7 deletions(-)

(limited to 'src/org/traccar/reports/Events.java')

diff --git a/src/org/traccar/reports/Events.java b/src/org/traccar/reports/Events.java
index ed7e9e411..9f58e1bf4 100644
--- a/src/org/traccar/reports/Events.java
+++ b/src/org/traccar/reports/Events.java
@@ -16,16 +16,36 @@
  */
 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.Comparator;
 import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.SortedSet;
+import java.util.TreeSet;
 
 import javax.json.Json;
 import javax.json.JsonArrayBuilder;
 
+import org.jxls.area.Area;
+import org.jxls.builder.xls.XlsCommentAreaBuilder;
+import org.jxls.common.CellRef;
+import org.jxls.formula.StandardFormulaProcessor;
+import org.jxls.transform.Transformer;
+import org.jxls.transform.poi.PoiTransformer;
+import org.jxls.util.TransformerFactory;
 import org.traccar.Context;
+import org.traccar.model.Device;
 import org.traccar.model.Event;
-import org.traccar.web.CsvBuilder;
+import org.traccar.model.Geofence;
+import org.traccar.model.Group;
+import org.traccar.reports.model.DeviceReport;
 import org.traccar.web.JsonConverter;
 
 public final class Events {
@@ -47,16 +67,69 @@ public final class Events {
         return json.build().toString();
     }
 
-    public static String getCsv(long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
-            Collection<String> types, Date from, Date to) throws SQLException {
-        CsvBuilder csv = new CsvBuilder();
-        csv.addHeaderLine(new Event());
+    public static void getExcel(OutputStream outputStream,
+            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Collection<String> types, Date from, Date to) throws SQLException, IOException {
+        ArrayList<DeviceReport> devicesEvents = new ArrayList<>();
+        ArrayList<String> sheetNames = new ArrayList<>();
+        HashMap<Long, String> geofenceNames = new HashMap<>();
         for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
             Context.getPermissionsManager().checkDevice(userId, deviceId);
+            SortedSet<Event> eventReports = new TreeSet<Event>(new Comparator<Event>() {
+                @Override
+                public int compare(Event e1, Event e2) {
+                    return e1.getServerTime().compareTo(e2.getServerTime());
+                }
+            });
             for (String type : types) {
-                csv.addArray(Context.getDataManager().getEvents(deviceId, type, from, to));
+                Collection<Event> events = Context.getDataManager().getEvents(deviceId, type, from, to);
+                for (Event event : events) {
+                    long geofenceId = event.getGeofenceId();
+                    if (geofenceId != 0) {
+                        Geofence geofence = Context.getGeofenceManager().getGeofence(geofenceId);
+                        if (geofence != null) {
+                            geofenceNames.put(geofenceId, geofence.getName());
+                        } else {
+                            geofenceNames.put(geofenceId, Long.toString(geofenceId));
+                        }
+                    }
+                    eventReports.add(event);
+                }
+            }
+            if (!eventReports.isEmpty()) {
+                DeviceReport deviceEvents = new DeviceReport();
+                Device device = Context.getIdentityManager().getDeviceById(deviceId);
+                deviceEvents.setDeviceName(device.getName());
+                sheetNames.add(deviceEvents.getDeviceName());
+                if (device.getGroupId() != 0) {
+                    Group group = Context.getDeviceManager().getGroupById(device.getGroupId());
+                    if (group != null) {
+                        deviceEvents.setGroupName(group.getName());
+                    }
+                }
+                deviceEvents.setObjects(eventReports);
+                devicesEvents.add(deviceEvents);
+            }
+        }
+        String templatePath = Context.getConfig().getString("report.events.template.excel",
+                "templates/export/events.xlsx");
+        try (InputStream inputStream = new FileInputStream(templatePath)) {
+            org.jxls.common.Context jxlsContext = PoiTransformer.createInitialContext();
+            jxlsContext.putVar("devices", devicesEvents);
+            jxlsContext.putVar("sheetNames", sheetNames);
+            jxlsContext.putVar("geofenceNames", geofenceNames);
+            jxlsContext.putVar("from", from);
+            jxlsContext.putVar("to", to);
+            jxlsContext.putVar("bracketsRegex", "[\\{\\}\"]");
+            Transformer transformer = TransformerFactory.createTransformer(inputStream, outputStream);
+            List<Area> xlsAreas = new XlsCommentAreaBuilder(transformer).build();
+            for (Area xlsArea : xlsAreas) {
+                xlsArea.applyAt(new CellRef(xlsArea.getStartCellRef().getCellName()), jxlsContext);
+                xlsArea.setFormulaProcessor(new StandardFormulaProcessor());
+                xlsArea.processFormulas();
             }
+            transformer.deleteSheet(xlsAreas.get(0).getStartCellRef().getSheetName());
+            transformer.write();
         }
-        return csv.build();
     }
 }
-- 
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