Feature: MS Excel (xlsx) Import/Export

Microsoft Excel files can be used to import/export devices. Several import bugs were also fixed in the process.
2017-03-25 15:37:28 +11:00
parent ed66f4f285
commit 5ce9e51ae7
51 changed files with 1959 additions and 1083 deletions
@@ -0,0 +1,56 @@
+using Disco.Models.Services.Devices.Importing;
+using LumenWorks.Framework.IO.Csv;
+using System.Collections.Generic;
+using System.Data;
+using System.IO;
+using System.Linq;
+
+namespace Disco.Services.Devices.Importing
+{
+    public class CsvDeviceImportContext : BaseDeviceImportContext
+    {
+        private List<string[]> rawData;
+        private bool hasHeaderRow;
+
+        public CsvDeviceImportContext(string Filename, bool HasHeader, Stream CsvStream)
+            : base(Filename)
+        {
+            hasHeaderRow = HasHeader;
+
+            ParseCsv(CsvStream);
+        }
+
+        public override int RecordCount
+        {
+            get
+            {
+                return rawData.Count;
+            }
+        }
+
+        public override IDeviceImportDataReader GetDataReader()
+        {
+            return new CsvDeviceImportDataReader(this, rawData, hasHeaderRow);
+        }
+
+        private void ParseCsv(Stream CsvStream)
+        {
+            using (TextReader csvTextReader = new StreamReader(CsvStream))
+            {
+                using (CsvReader csvReader = new CsvReader(csvTextReader, hasHeaderRow))
+                {
+                    csvReader.DefaultParseErrorAction = ParseErrorAction.ThrowException;
+                    csvReader.MissingFieldAction = MissingFieldAction.ReplaceByNull;
+
+                    rawData = csvReader.ToList();
+                    SetColumns(csvReader.GetFieldHeaders().Select((h, i) => new DeviceImportColumn()
+                    {
+                        Index = i,
+                        Name = h,
+                        Type = DeviceImportFieldTypes.IgnoreColumn
+                    }));
+                }
+            }
+        }
+    }
+}