public void Setup()
{
var bogus = new Bogus.Randomizer();
BufferSegment headerBufferSegment = new BufferSegment(Constants.PAGE_SIZE);
var headerPage = HeaderPage.CreateHeaderPage(headerBufferSegment);
BufferSegment bufferSegment = new BufferSegment(Constants.PAGE_SIZE);
PageHeader header = new PageHeader(1, PageType.Data);
header.ToBuffer(bufferSegment.Span, 0);
File.Delete(@"C:\Neuer Ordner\test.db");
PageService pageService = new PageService(FileDiskService.Create(new DatatentSettings()
{
InMemory = false, Path = @"C:\Neuer Ordner\test.db"
}));
_dataService = new DataService(new NopCompressionService(), pageService);
_objects = new List <TestObject>(50);
foreach (var i in Enumerable.Range(0, 50))
{
TestObject testObject = new TestObject();
testObject.IntProp = bogus.Int();
testObject.StringProp = bogus.String2(1000);
_objects.Add(testObject);
}
}
public LiteDB_Test(int count, string password, LiteDB.FileOptions options)
{
_count = count;
_filename = "dblite-" + Guid.NewGuid().ToString("n") + ".db";
var disk = new FileDiskService(_filename, options);
_db = new LiteEngine(disk, password);
}
public LiteDB_Test2(int count, string password, LiteDB.FileOptions options)
{
_count = count;
_filename = "dblite-" + Guid.NewGuid().ToString("n") + ".db";
var disk = new FileDiskService(_filename, options);
_db = new LiteDatabase(disk);
_collection = _db.GetCollection <TestDoc>();
}
public void Init()
{
File.Delete(filename);
var disk = new FileDiskService(filename, new FileOptions
{
FileMode = FileMode.Exclusive,
Journal = false
});
_engine = new LiteEngine(disk, cacheSize: 50000);
}
/// <summary>
/// Initialize database reader with database stream file and password
/// </summary>
public bool Initialize(Stream stream, string password)
{
// test if current stream is V6
if (stream.ReadByte(25 + 27) != 6) return false;
_disk = new FileDiskService(stream, password);
_pager = new PageService(_disk);
_indexer = new IndexService(_pager);
_data = new DataService(_pager);
_collections = new CollectionService(_pager, _indexer, _data);
return true;
}
public LiteEngine CreateEngine(DataAccess access)
{
if (this.Filename == null) throw new ShellExpcetion("No database");
var disk = new FileDiskService(this.Filename,
new FileOptions
{
ReadOnly = access == DataAccess.Read,
Journal = this.Journal
});
return new LiteEngine(disk, password: this.Password, log: this.Log);
}
private void Cache(IEnumerable <Scrobble> scrobbles)
{
using (var disk = new FileDiskService(DatabasePath, new FileOptions {
FileMode = FileMode.Exclusive
}))
using (var db = new LiteDatabase(disk))
{
var scrobblesCollection = db.GetCollection <Scrobble>("scrobbles");
foreach (var scrobble in scrobbles)
{
scrobblesCollection.Insert(scrobble);
}
}
}
public override Task <int> GetCachedCountAsync()
{
return(Task.Run(() =>
{
using (var disk = new FileDiskService(DatabasePath, new FileOptions {
FileMode = FileMode.Exclusive
}))
using (var db = new LiteDatabase(disk))
{
var scrobblesCollection = db.GetCollection <Scrobble>("scrobbles");
return scrobblesCollection.Count();
}
}));
}
public LiteEngine CreateEngine(DataAccess access)
{
if (this.Filename == null)
{
throw new ShellExpcetion("No database");
}
var disk = new FileDiskService(this.Filename,
new FileOptions
{
FileMode = FileMode.Shared,
Journal = this.Journal
});
return(new LiteEngine(disk, password: this.Password, log: this.Log));
}
public override Task RemoveFromCacheAsync(ICollection <Scrobble> scrobbles)
{
return(Task.Run(() =>
{
using (var disk = new FileDiskService(DatabasePath, new FileOptions {
FileMode = FileMode.Exclusive
}))
using (var db = new LiteDatabase(disk))
{
var scrobblesCollection = db.GetCollection <Scrobble>("scrobbles");
foreach (var scrobble in scrobbles)
{
scrobblesCollection.Delete(t => t.Id == scrobble.Id);
}
}
}));
}
public override Task <IEnumerable <Scrobble> > GetCachedAsync()
{
using (var disk = new FileDiskService(DatabasePath, new FileOptions {
FileMode = FileMode.Exclusive
}))
using (var db = new LiteDatabase(disk))
{
return(Task.Run(() =>
{
var scrobbles = db.GetCollection <Scrobble>("scrobbles");
if (scrobbles.Count() <= 0)
{
return Enumerable.Empty <Scrobble>();
}
var cached = scrobbles.FindAll();//.Find(Query.All());
return cached ?? Enumerable.Empty <Scrobble>();
}));
}
}
public override Task <IEnumerable <Scrobble> > GetCachedAsync()
{
var disk = new FileDiskService(DatabasePath, new FileOptions()
{
FileMode = FileMode.Exclusive
});
using (var db = new LiteDatabase(disk))
{
var scrobbles = db.GetCollection <Scrobble>("scrobbles");
if (scrobbles.Count() <= 0)
{
return(Task.FromResult(Enumerable.Empty <Scrobble>()));
}
var cached = scrobbles.Find(Query.All());
db.Dispose();
return(Task.FromResult(cached));
}
}
static LiteEngine InitDB()
{
var disk = new FileDiskService(filename, true);
return(new LiteEngine(disk, null, null, 5000, log));
}
