public void SinglePageWriteTest()
{
const string pageManagerName = "DataPageManager-2";
PrepareFor(pageManagerName);
using (var dataPageManager = new DataPageManager(new DataPageManagerConfig(pageManagerName, PageSize, TempFilesDirectory)))
{
Assert.Multiple(() =>
{
Assert.AreEqual(0, dataPageManager.DataPagesCount);
Assert.IsNull(dataPageManager.Read(1));
Assert.IsNull(dataPageManager.Read(2));
Assert.IsNull(dataPageManager.Read(3));
});
var data1 = new string('1', 50);
var data2 = new string('2', 70);
var dr1 = Core.Models.DataRecord.Create(Encoding.UTF8.GetBytes(data1));
var dr2 = Core.Models.DataRecord.Create(Encoding.UTF8.GetBytes(data2));
dataPageManager.Save(dr1);
dataPageManager.Save(dr2);
var dataRecord1 = dataPageManager.Read(dr1.Id);
var dataRecord2 = dataPageManager.Read(dr2.Id);
Assert.AreEqual(data1, Encoding.UTF8.GetString(dataRecord1.Body));
Assert.AreEqual(data2, Encoding.UTF8.GetString(dataRecord2.Body));
}
}
public void MultiPageWriteTest()
{
const string pageManagerName = "DataPageManager-1";
PrepareFor(pageManagerName);
using (var dataPageManager = new DataPageManager(new DataPageManagerConfig(pageManagerName, PageSize, TempFilesDirectory)))
{
Assert.Multiple(() =>
{
Assert.AreEqual(0, dataPageManager.DataPagesCount);
Assert.IsNull(dataPageManager.Read(1));
Assert.IsNull(dataPageManager.Read(2));
Assert.IsNull(dataPageManager.Read(3));
});
dataPageManager.Save(Core.Models.DataRecord.Create(Encoding.UTF8.GetBytes(new string('1', 100))));
var data = new string('5', 500);
var dataRecord = Core.Models.DataRecord.Create(Encoding.UTF8.GetBytes(data));
dataPageManager.Save(dataRecord);
var readedDataRecord = dataPageManager.Read(dataRecord.Id);
Assert.AreEqual(data, Encoding.UTF8.GetString(readedDataRecord.Body));
}
}
private static void Main()
{
var dpmConfig =
new DataPageManagerConfig(
"DataPageManager-1",
100,
Path.Combine(Directory.GetCurrentDirectory())
);
using (var dataPageManager = new DataPageManager(dpmConfig))
{
var dog = new Dog
{
Age = 5,
Id = 10420,
Name = "A dog"
};
var anotherDog = new Dog
{
Age = 4,
Id = 10421,
Name = "Another dog"
};
var anotherOneDog = new Dog
{
Age = 1,
Id = 10422,
Name = "Another one dog 3"
};
dataPageManager.Save(DataRecord.Create(dog.GetBytes()));
dataPageManager.Save(DataRecord.Create(anotherDog.GetBytes()));
dataPageManager.Save(DataRecord.Create(anotherOneDog.GetBytes()));
Thread.Sleep(1000); // даём время на срабатывание автосохранения.
var dataRecord1 = dataPageManager.Read(1);
var dataRecord2 = dataPageManager.Read(2);
var dataRecord3 = dataPageManager.Read(3);
if (dataRecord1?.Body != null)
{
Debug.Assert(dog.GetBytes().SequenceEqual(dataRecord1.Body));
var animal = Dog.ReadFrom(dataRecord1.Body);
}
if (dataRecord2?.Body != null)
{
Debug.Assert(anotherDog.GetBytes().SequenceEqual(dataRecord2.Body));
var animal = Dog.ReadFrom(dataRecord2.Body);
}
if (dataRecord3?.Body != null)
{
Debug.Assert(anotherOneDog.GetBytes().SequenceEqual(dataRecord3.Body));
var animal = Dog.ReadFrom(dataRecord3.Body);
}
foreach (var record in dataPageManager.AsEnumerable(1))
{
var animal = Dog.ReadFrom(record.Body);
}
}
Console.ReadLine();
}