static void TestViaInterfaceCase <T>(IEnumerable <T> data, DbContext context) where T : IHasId
{
var uploader = new NpgsqlBulkUploader(context);
var properties = data
.First()
.GetType()
.GetProperties()
.ToArray();
uploader.Insert(data, InsertConflictAction.UpdateProperty <T>(x => x.AddressId, properties));
}
static void TestPlainCase()
{
var streets = new[] { "First", "Second", "Third" };
var codes = new[] { "001001", "002002", "003003", "004004" };
var extraNumbers = new int?[] { null, 1, 2, 3, 5, 8, 13, 21, 34 };
var addressTypes = new AddressType?[] { null, AddressType.Type1, AddressType.Type2 };
var dates = new DateTime?[] { null, DateTime.Now };
var guids = new Guid?[] { null, Guid.Empty };
var decimals = new decimal?[] { null, decimal.Zero };
var context = new BulkContext("DefaultConnection");
context.Database.ExecuteSqlCommand("TRUNCATE addresses cascade");
var data = Enumerable.Range(0, 100000)
.Select((x, i) => new Address()
{
StreetName = streets[i % streets.Length],
HouseNumber = i + 1,
PostalCode = codes[i % codes.Length],
ExtraHouseNumber = extraNumbers[i % extraNumbers.Length],
Type = addressTypes[i % addressTypes.Length],
Date = dates[i % dates.Length],
Guid = guids[i % guids.Length],
Dec = decimals[i % decimals.Length]
}).ToList();
var uploader = new NpgsqlBulkUploader(context);
context.Database.ExecuteSqlCommand("DELETE FROM addresses");
var sw = Stopwatch.StartNew();
HardcodedInsert(data, context);
sw.Stop();
Console.WriteLine($"Hardcoded solution inserted {data.Count} records for {sw.Elapsed }");
context.Database.ExecuteSqlCommand("DELETE FROM addresses");
sw = Stopwatch.StartNew();
uploader.Insert(data, InsertConflictAction.UpdateProperty <Address>(x => x.AddressId, x => x.Dec));
uploader.Insert(data, InsertConflictAction.DoNothing());
sw.Stop();
Console.WriteLine($"Dynamic solution inserted {data.Count} records for {sw.Elapsed }");
data.ForEach(x => x.HouseNumber += 1);
sw = Stopwatch.StartNew();
uploader.Update(data);
sw.Stop();
Console.WriteLine($"Dynamic solution updated {data.Count} records for {sw.Elapsed }");
TestViaInterfaceCase(data, context);
context.Database.ExecuteSqlCommand("TRUNCATE addresses CASCADE");
sw = Stopwatch.StartNew();
uploader.Import(data);
sw.Stop();
Console.WriteLine($"Dynamic solution imported {data.Count} records for {sw.Elapsed }");
// With transaction
context.Database.ExecuteSqlCommand("TRUNCATE addresses CASCADE");
using (var transaction = new TransactionScope())
{
uploader.Insert(data);
}
Trace.Assert(context.Addresses.Count() == 0);
sw = Stopwatch.StartNew();
uploader.Update(data);
sw.Stop();
Console.WriteLine($"Dynamic solution updated {data.Count} records for {sw.Elapsed } (after transaction scope)");
TestAsync(context, uploader, data).Wait();
}
