public void SaveAndParentOrderAscGet()
{
var dbOptions = new RocksDbSharp.DbOptions();
dbOptions.SetCreateIfMissing();
var rocksDb = RocksDbSharp.RocksDb.Open(dbOptions, @"C:\rocks\secondaryrepositorytst\");
var repository = new RocksSecondaryRepository(rocksDb, "ent");
try
{
var parentId = ByteArray.New(32);
var id1 = ByteArray.New(32);
var value1 = ByteArray.New(256);
var id2 = ByteArray.New(32);
var value2 = ByteArray.New(256);
var id3 = ByteArray.New(32);
var value3 = ByteArray.New(256);
using (var transaction = repository.CreateTransaction())
{
var key1 = transaction.AppendValue(parentId, id1, value1.Bytes, value1.Length);
transaction.AppendScoreIndex(parentId, id1, key1, 14, IndexLevel.Parent, OrderType.Asc);
var key2 = transaction.AppendValue(parentId, id2, value2.Bytes, value2.Length);
transaction.AppendScoreIndex(parentId, id2, key2, 12, IndexLevel.Parent, OrderType.Asc);
var key3 = transaction.AppendValue(parentId, id3, value3.Bytes, value3.Length);
transaction.AppendScoreIndex(parentId, id3, key3, 15, IndexLevel.Parent, OrderType.Asc);
transaction.Commit();
}
var result = repository.GetValues(parentId, OrderType.Asc, true).ToArray();
var result2 = repository.GetValues(parentId, true).ToArray();
Assert.IsNotNull(result);
Assert.AreEqual(3, result.Length);
Assert.IsNotNull(result);
Assert.AreEqual(3, result2.Length);
Assert.IsTrue(result[0].Value.ContainsSequence32(value2.Bytes));
Assert.IsTrue(result[1].Value.ContainsSequence32(value1.Bytes));
Assert.IsTrue(result[2].Value.ContainsSequence32(value3.Bytes));
}
finally
{
rocksDb.Dispose();
Directory.Delete(@"C:\rocks\secondaryrepositorytst\", true);
}
}
public void OpenRead(string path)
{
if (db != null)
{
throw new Exception("already open a db.");
}
this.defaultWriteOpPtr = RocksDbSharp.Native.Instance.rocksdb_writeoptions_create();
RocksDbSharp.DbOptions option = new RocksDbSharp.DbOptions();
option.SetCreateIfMissing(false);
option.SetCompression(RocksDbSharp.CompressionTypeEnum.rocksdb_snappy_compression);
this.db = RocksDbSharp.RocksDb.OpenReadOnly(option, path, true);
snapshotLast = CreateSnapInfo();
snapshotLast.AddRef();
}
public RocksDbStore(string path)
{
var options = new RocksDbSharp.DbOptions()
.SetCreateIfMissing(false)
.SetCreateMissingColumnFamilies(false);
db = RocksDb.Open(options, path, ColumnFamilies);
blockIndex = GetBlocks()
.OrderBy(t => t.blockState.header.Index)
.Select(t => t.key)
.ToList();
governingTokenHash = new Lazy <UInt256>(() => GetTokenHash(AssetType.GoverningToken));
utilityTokenHash = new Lazy <UInt256>(() => GetTokenHash(AssetType.UtilityToken));
}
public static void TestRocksDb()
{
string temp = System.IO.Path.GetTempPath();
var options = new RocksDbSharp.DbOptions().SetCreateIfMissing(true);
using (var db = RocksDbSharp.RocksDb.Open(options,
System.IO.Path.Combine(temp, "rocksdb_example")))
{
{
var iter = db.NewIterator();
iter.SeekToLast();
if (iter.Valid())
{
Console.WriteLine($"last is({BitConverter.ToString(iter.Key())},{BitConverter.ToString(iter.Value())})");
}
else
{
Console.WriteLine("last not found.");
}
}
var key1 = Encoding.UTF8.GetBytes("key1");
var value1 = Encoding.UTF8.GetBytes("value1");
db.Put(key1, value1);
Console.WriteLine(BitConverter.ToString(db.Get(key1)));
var value1get = db.Get(key1);
Console.WriteLine(null == value1get ? "null" : BitConverter.ToString(value1get));
var key2 = Encoding.UTF8.GetBytes("key2");
var value2 = Encoding.UTF8.GetBytes("value2");
db.Put(key2, value2);
{
var iter = db.NewIterator();
iter.SeekToLast();
if (iter.Valid())
{
Console.WriteLine($"last is({BitConverter.ToString(iter.Key())},{BitConverter.ToString(iter.Value())})");
}
else
{
Console.WriteLine("last not found.");
}
}
db.Remove(key1);
db.Remove(key2);
}
}
public void Open(string path, DBCreateOption createOption = null)
{
if (db != null)
{
throw new Exception("already open a db.");
}
this.defaultWriteOpPtr = RocksDbSharp.Native.Instance.rocksdb_writeoptions_create();
RocksDbSharp.DbOptions option = new RocksDbSharp.DbOptions();
option.SetCreateIfMissing(true);
option.SetCompression(RocksDbSharp.CompressionTypeEnum.rocksdb_snappy_compression);
this.db = RocksDbSharp.RocksDb.Open(option, path);
snapshotLast = CreateSnapInfo();
if (snapshotLast.DataHeight == 0)
{
InitFirstBlock(createOption);
}
snapshotLast.AddRef();
}