public static TValue ReadValue <TValue>(this Stream stream, int bufferSize = 655360)
{
using (var ebr = new ExaStreamReader <TValue>(bufferSize))
{
return(ebr.Read(stream));
}
}
public static IEnumerable <TValue> EnumerateValues <TValue>(this Stream stream, int bufferSize = 655360)
{
using (var ebr = new ExaStreamReader <IEnumerable <TValue> >(bufferSize))
{
var enumerable = ebr.Read(stream);
if (enumerable != null)
{
foreach (var value in enumerable)
{
yield return(value);
}
}
}
}
private static void ExaDeserializer <T>(T[] values)
where T : new()
{
using (var ms = new MemoryStream())
{
using (var bw = new ExaStreamWriter <T>())
{
bw.Write(ms, values[0]);
}
using (var br = new ExaStreamReader <T>())
{
foreach (var value in values)
{
ms.Position = 0;
var retreive = br.Read(ms);
}
}
}
}
private void EnumerableTestMethod <TValue>()
{
var arrayValue = TestDataGenerator <TValue> .TestData;
using (var ms = new MemoryStream(new byte[]
{
0x45, 0x23, 0x01, 0x00,
}.
Concat(TestDataGenerator <TValue> .TestDataBytes).
ToArray()))
{
foreach (var entry in ms.EnumerateValues <TValue>().
Select((sav, index) => new { sav, index }).
Zip(arrayValue, (entry, arv) => new { entry.index, entry.sav, arv }))
{
Assert.AreEqual(entry.sav, entry.arv);
Assert.AreEqual(ms.Position, (entry.index + 1) * TestDataGenerator <TValue> .ElementSize + 4);
}
Assert.AreEqual(ms.Length, ms.Position);
}
using (var ms = new MemoryStream(new byte[]
{
0x00, 0x00, 0x00, 0x00
}))
{
var enumerable = ms.EnumerateValues <TValue>();
Assert.IsNotNull(enumerable);
Assert.IsFalse(enumerable.Any());
Assert.AreEqual(ms.Length, ms.Position);
}
using (var ms = new MemoryStream(new byte[]
{
0xfe, 0xff, 0xff, 0xff,
}.
Concat(TestDataGenerator <TValue> .TestDataBytesWithFlags).
ToArray()))
{
foreach (var entry in ms.EnumerateValues <TValue>().
Select((sav, index) => new { sav, index }).
Zip(arrayValue, (entry, arv) => new { entry.index, entry.sav, arv }))
{
Assert.AreEqual(entry.sav, entry.arv);
Assert.AreEqual(ms.Position, (entry.index + 1) * (TestDataGenerator <TValue> .ElementSize + 1) + 4);
}
Assert.AreEqual(ms.Length, ms.Position);
}
using (var ms = new MemoryStream(new byte[]
{
0xfe, 0xff, 0xff, 0xff,
0x00
}))
{
var enumerable = ms.EnumerateValues <TValue>();
Assert.IsNotNull(enumerable);
Assert.IsFalse(enumerable.Any());
Assert.AreEqual(ms.Length, ms.Position);
}
using (var ms = new MemoryStream(new byte[]
{
0xff, 0xff, 0xff, 0xff,
}))
{
var enumerable = ms.EnumerateValues <TValue>();
Assert.IsNotNull(enumerable);
Assert.IsFalse(enumerable.Any());
Assert.AreEqual(ms.Length, ms.Position);
}
using (var ms = new MemoryStream(new byte[]
{
0xff, 0xff, 0xff, 0xff,
}))
{
using (var sr = new ExaStreamReader <IEnumerable <TValue> >())
{
var enumerable = sr.Read(ms);
Assert.IsNull(enumerable);
Assert.AreEqual(ms.Length, ms.Position);
}
}
}
