public static void Run()
{
var directory = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "SingeStorage");
if (!Directory.Exists(directory)) Directory.CreateDirectory(directory);
var storagePath = Path.Combine(directory, "MyEntity.dat");
if (File.Exists(storagePath)) File.Delete(storagePath);
using (var store = new DualBinaryStore(new FileSystemStreamProvider(storagePath), 0, 5 * 1024 * 1024))
{
var converter = new ProtocolBufferBinaryConverter<MyEntity>();
var storage = new StorageFragment(store);
var content = converter.Convert(new MyEntity { Id = 1, Message = "Hello World", Value = 42.5, Category = new Category { Id = 1, Name = "First scenario" } });
var added = storage.TryAdd(new Int32Key(1), content);
Console.WriteLine("Value was {0} added", added ? "successfully" : "unsuccessfully");
if (storage.TryGet(new Int32Key(1), out content))
{
var entity = converter.Convert(content);
Console.WriteLine("Retrieve success, valdiation {0}", entity.IsValid() ? "successful" : "unsuccessful");
}
else
{
Console.WriteLine("Error, could not get the content");
}
}
}
public void ReadWriteTest()
{
var leftTestData = new byte[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 0};
var rightTestData = new byte[] {1, 3, 3, 7};
var path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "data.dat");
if (File.Exists(path)) File.Delete(path);
long leftOffset;
long rightOffset;
using (var store = new DualBinaryStore(new FileSystemStreamProvider(path), 0, 1024 * 1024))
{
Assert.IsTrue(store.Left.TryWrite(leftTestData, out leftOffset));
Assert.IsTrue(store.Right.TryWrite(rightTestData, out rightOffset));
var leftData = store.ReadLeft(leftOffset, leftTestData.Length);
Assert.IsTrue(leftTestData.SequenceEqual(leftData));
var rightData = store.ReadRight(rightOffset, rightTestData.Length);
Assert.IsTrue(rightTestData.SequenceEqual(rightData));
}
using (var store = new DualBinaryStore(new FileSystemStreamProvider(path), 0, 1024 * 1024))
{
var leftData = store.ReadLeft(leftOffset, leftTestData.Length);
Assert.IsTrue(leftTestData.SequenceEqual(leftData));
var rightData = store.ReadRight(rightOffset, rightTestData.Length);
Assert.IsTrue(rightTestData.SequenceEqual(rightData));
}
}
public IStorageFragment CreateFragment()
{
var fileInfo = new FileInfo(_path);
var start = fileInfo.Exists ? fileInfo.Length : 0;
var store = new DualBinaryStore(new FileSystemStreamProvider(_path), start, _configuration.FragmentSize.Value);
return new StorageFragment(store);
}
public IEnumerable<IStorageFragment> GetFragments()
{
var fragments = new List<IStorageFragment>();
var fileInfo = new FileInfo(_path);
if (!fileInfo.Exists) return fragments;
var fragmentCount = fileInfo.Length / _configuration.FragmentSize.Value;
for (var i = 0; i < fragmentCount; i++)
{
var start = i * _configuration.FragmentSize.Value;
var store = new DualBinaryStore(new FileSystemStreamProvider(_path), start, _configuration.FragmentSize.Value);
fragments.Add(new StorageFragment(store));
}
return fragments;
}
public IStorageFragment CreateFragment()
{
var streamProvider = new MemoryStreamProvider((int)_configuration.FragmentSize.Value);
var binaryStore = new DualBinaryStore(streamProvider, 0, _configuration.FragmentSize.Value);
return new StorageFragment(binaryStore);
}