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Common/DTS.Common.Import/.svn/pristine/15/15059f16c22086423a2f9d95351c22a306bc41ca.svn-base

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+using DTS.Common.Import.ImportOptions;
+using System;
+using System.IO;
+using System.Linq;
+
+namespace DTS.Common.Import
+{
+    public class CSVFile
+    {
+        private readonly string _filename;
+        public CSVFile(string filename)
+        {
+            _filename = filename;
+        }
+        public static bool IsInUse(string filename)
+        {
+            if (!string.IsNullOrEmpty(filename))
+            {
+                try
+                {
+                    _ = File.ReadAllLines(filename);
+                    return false;
+                }
+                catch (IOException)
+                {
+                    return true;
+                }
+                catch (Exception)
+                {
+                    //We can supress this exception since we are interested in IOException only
+                }
+            }
+            return true;
+        }
+        //FB 40598 check the format of csv and determine if is test setup or not
+        public static bool IsCSVFileForTestSetupImport(string filename, CsvImportOptions csvImportOptions)
+        {
+            try
+            {
+                using (var csvReader = CsvUtil.CreateCsvReader(filename))
+                {
+                    var tokens = CsvUtil.ReadFields(csvReader);
+
+                    if (tokens != null && tokens[0] == "Version")
+                    {
+                        return true;
+                    }
+                }
+            }
+            catch
+            {
+                // return false later
+            }
+            return false;
+        }
+
+        //FB 43815 Get the CSV file version 
+        public static int GetCsvVersion(string filename)
+        {
+            try
+            {
+                using (var csvReader = CsvUtil.CreateCsvReader(filename))
+                {
+                    var tokens = CsvUtil.ReadFields(csvReader);
+
+                    if (tokens != null && tokens[0] == "Version")
+                    {
+                        var tokens2 = CsvUtil.ReadFields(csvReader);
+                        if (tokens2 != null)
+                        {
+                            var version = Convert.ToInt32(tokens2[0]);
+                            return version;
+                        }
+                    }
+                    return 0;
+                }
+            }
+            catch
+            {
+                return 0;
+            }
+        }
+
+        public int LineCount
+        {
+            get
+            {
+                var count = 0;
+                if (!string.IsNullOrEmpty(_filename))
+                {
+                    string[] lines;
+                    try
+                    {
+                        lines = File.ReadAllLines(_filename);
+                        return lines.Count();
+                    }
+
+                    catch (Exception)
+                    {
+                        return count;
+                    }
+                }
+                return count;
+            }
+        }
+    }
+}