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/Summary.java | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

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

diff --git a/src/org/traccar/reports/Summary.java b/src/org/traccar/reports/Summary.java
index d4171f644..e7f41bcd6 100644
--- a/src/org/traccar/reports/Summary.java
+++ b/src/org/traccar/reports/Summary.java
@@ -16,17 +16,23 @@
  */
 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 javax.json.Json;
 import javax.json.JsonArrayBuilder;
 
+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;
-import org.traccar.web.CsvBuilder;
 import org.traccar.web.JsonConverter;
 
 public final class Summary {
@@ -78,14 +84,23 @@ public final class Summary {
         return json.build().toString();
     }
 
-    public static String getCsv(long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
-            Date from, Date to) throws SQLException {
-        CsvBuilder csv = new CsvBuilder();
-        csv.addHeaderLine(new SummaryReport());
+    public static void getExcel(OutputStream outputStream,
+            long userId, Collection<Long> deviceIds, Collection<Long> groupIds,
+            Date from, Date to) throws SQLException, IOException {
+        ArrayList<SummaryReport> summaries = new ArrayList<>();
         for (long deviceId: ReportUtils.getDeviceList(deviceIds, groupIds)) {
             Context.getPermissionsManager().checkDevice(userId, deviceId);
-            csv.addLine(calculateSummaryResult(deviceId, from, to));
+            summaries.add(calculateSummaryResult(deviceId, from, to));
+        }
+        String templatePath = Context.getConfig().getString("report.summary.template.excel",
+                "templates/export/summary.xlsx");
+        try (InputStream inputStream = new FileInputStream(templatePath)) {
+            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);
         }
-        return csv.build();
     }
 }
-- 
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