protected override void ReadContent(ByteReader reader) { var info = reader.ReadString(HEADER_INFO.Length); var ver = reader.ReadByte(); if (info != HEADER_INFO) { throw LiteException.InvalidDatabase(); } if (ver != FILE_VERSION) { throw LiteException.InvalidDatabaseVersion(ver); } this.ChangeID = reader.ReadUInt16(); this.FreeEmptyPageID = reader.ReadUInt32(); this.LastPageID = reader.ReadUInt32(); this.UserVersion = reader.ReadUInt16(); this.Password = reader.ReadBytes(this.Password.Length); this.Salt = reader.ReadBytes(this.Salt.Length); // read page collections references (position on end of page) var cols = reader.ReadByte(); for (var i = 0; i < cols; i++) { this.CollectionPages.Add(reader.ReadString(), reader.ReadUInt32()); } // use last page byte position for recovery mode only because i forgot to reserve area before collection names! // TODO: fix this in next change data structure reader.Position = BasePage.PAGE_SIZE - 1; this.Recovery = reader.ReadBoolean(); }
protected override void ReadContent(ByteReader reader) { this.CollectionName = reader.ReadString(); this.DocumentCount = reader.ReadInt64(); this.FreeDataPageID = reader.ReadUInt32(); foreach (var index in this.Indexes) { var field = reader.ReadString(); var eq = field.IndexOf('='); // Use same string to avoid change file defition if (eq > 0) { index.Field = field.Substring(0, eq); index.Expression = field.Substring(eq + 1); } else { index.Field = field; index.Expression = "$." + field; } index.Unique = reader.ReadBoolean(); index.HeadNode = reader.ReadPageAddress(); index.TailNode = reader.ReadPageAddress(); index.FreeIndexPageID = reader.ReadUInt32(); } // position on page-footer (avoid file structure change) reader.Position = BasePage.PAGE_SIZE - 8; this.Sequence = reader.ReadInt64(); }
protected override void ReadContent(ByteReader reader) { this.CollectionName = reader.ReadString(); this.FreeDataPageID = reader.ReadUInt32(); this.DocumentCount = reader.ReadUInt32(); foreach (var index in this.Indexes) { index.Field = reader.ReadString(); index.HeadNode = reader.ReadPageAddress(); index.TailNode = reader.ReadPageAddress(); index.FreeIndexPageID = reader.ReadUInt32(); index.Options.Unique = reader.ReadBoolean(); index.Options.IgnoreCase = reader.ReadBoolean(); index.Options.TrimWhitespace = reader.ReadBoolean(); index.Options.EmptyStringToNull = reader.ReadBoolean(); index.Options.RemoveAccents = reader.ReadBoolean(); } }
protected override void ReadContent(ByteReader reader) { this.CollectionName = reader.ReadString(); this.FreeDataPageID = reader.ReadUInt32(); this.DocumentCount = reader.ReadUInt32(); foreach (var index in this.Indexes) { index.Field = reader.ReadString(); index.HeadNode = reader.ReadPageAddress(); index.TailNode = reader.ReadPageAddress(); index.FreeIndexPageID = reader.ReadUInt32(); index.Options.Unique = reader.ReadBoolean(); index.Options.IgnoreCase = reader.ReadBoolean(); index.Options.TrimWhitespace = reader.ReadBoolean(); index.Options.EmptyStringToNull = reader.ReadBoolean(); index.Options.RemoveAccents = reader.ReadBoolean(); } }
protected override void ReadContent(ByteReader reader) { this.CollectionName = reader.ReadString(); this.FreeDataPageID = reader.ReadUInt32(); var uintCount = reader.ReadUInt32(); // read as uint (4 bytes) foreach (var index in this.Indexes) { index.Field = reader.ReadString(); index.HeadNode = reader.ReadPageAddress(); index.TailNode = reader.ReadPageAddress(); index.FreeIndexPageID = reader.ReadUInt32(); index.Options.Unique = reader.ReadBoolean(); index.Options.IgnoreCase = reader.ReadBoolean(); index.Options.TrimWhitespace = reader.ReadBoolean(); index.Options.EmptyStringToNull = reader.ReadBoolean(); index.Options.RemoveAccents = reader.ReadBoolean(); } // be compatible with v2_beta var longCount = reader.ReadInt64(); this.DocumentCount = Math.Max(uintCount, longCount); }
protected override void ReadContent(ByteReader reader) { this.CollectionName = reader.ReadString(); this.DocumentCount = reader.ReadInt64(); this.FreeDataPageID = reader.ReadUInt32(); foreach (var index in this.Indexes) { index.Field = reader.ReadString(); index.Unique = reader.ReadBoolean(); index.HeadNode = reader.ReadPageAddress(); index.TailNode = reader.ReadPageAddress(); index.FreeIndexPageID = reader.ReadUInt32(); } }
protected override void ReadContent(ByteReader reader) { this.CollectionName = reader.ReadString(); this.FreeDataPageID = reader.ReadUInt32(); var uintCount = reader.ReadUInt32(); // read as uint (4 bytes) foreach (var index in this.Indexes) { index.Field = reader.ReadString(); index.HeadNode = reader.ReadPageAddress(); index.TailNode = reader.ReadPageAddress(); index.FreeIndexPageID = reader.ReadUInt32(); index.Options.Unique = reader.ReadBoolean(); index.Options.IgnoreCase = reader.ReadBoolean(); index.Options.TrimWhitespace = reader.ReadBoolean(); index.Options.EmptyStringToNull = reader.ReadBoolean(); index.Options.RemoveAccents = reader.ReadBoolean(); } // be compatible with v2_beta var longCount = reader.ReadInt64(); this.DocumentCount = Math.Max(uintCount, longCount); }
/// <summary> /// Reads an element (key-value) from an reader /// </summary> private BsonValue ReadElement(ByteReader reader, out string name) { var type = reader.ReadByte(); name = this.ReadCString(reader); if (type == 0x01) // Double { return(reader.ReadDouble()); } else if (type == 0x02) // String { return(this.ReadString(reader)); } else if (type == 0x03) // Document { return(this.ReadDocument(reader)); } else if (type == 0x04) // Array { return(this.ReadArray(reader)); } else if (type == 0x05) // Binary { var length = reader.ReadInt32(); var subType = reader.ReadByte(); var bytes = reader.ReadBytes(length); switch (subType) { case 0x00: return(bytes); case 0x04: return(new Guid(bytes)); } } else if (type == 0x07) // ObjectId { return(new ObjectId(reader.ReadBytes(12))); } else if (type == 0x08) // Boolean { return(reader.ReadBoolean()); } else if (type == 0x09) // DateTime { var ts = reader.ReadInt64(); // catch specific values for MaxValue / MinValue #19 if (ts == 253402300800000) { return(DateTime.MaxValue); } if (ts == -62135596800000) { return(DateTime.MinValue); } return(BsonValue.UnixEpoch.AddMilliseconds(ts).ToLocalTime()); } else if (type == 0x0A) // Null { return(BsonValue.Null); } else if (type == 0x10) // Int32 { return(reader.ReadInt32()); } else if (type == 0x12) // Int64 { return(reader.ReadInt64()); } else if (type == 0xFF) // MinKey { return(BsonValue.MinValue); } else if (type == 0x7F) // MaxKey { return(BsonValue.MaxValue); } throw new NotSupportedException("BSON type not supported"); }
/// <summary> /// Reads an element (key-value) from an reader /// </summary> private BsonValue ReadElement(ByteReader reader, out string name) { var type = reader.ReadByte(); name = this.ReadCString(reader); if (type == 0x01) // Double { return reader.ReadDouble(); } else if (type == 0x02) // String { return this.ReadString(reader); } else if (type == 0x03) // Document { return this.ReadDocument(reader); } else if (type == 0x04) // Array { return this.ReadArray(reader); } else if (type == 0x05) // Binary { var length = reader.ReadInt32(); var subType = reader.ReadByte(); var bytes = reader.ReadBytes(length); switch (subType) { case 0x00: return bytes; case 0x04: return new Guid(bytes); } } else if (type == 0x07) // ObjectId { return new ObjectId(reader.ReadBytes(12)); } else if (type == 0x08) // Boolean { return reader.ReadBoolean(); } else if (type == 0x09) // DateTime { var ts = reader.ReadInt64(); // catch specific values for MaxValue / MinValue #19 if (ts == 253402300800000) return DateTime.MaxValue; if (ts == -62135596800000) return DateTime.MinValue; return BsonValue.UnixEpoch.AddMilliseconds(ts).ToLocalTime(); } else if (type == 0x0A) // Null { return BsonValue.Null; } else if (type == 0x10) // Int32 { return reader.ReadInt32(); } else if (type == 0x12) // Int64 { return reader.ReadInt64(); } else if (type == 0xFF) // MinKey { return BsonValue.MinValue; } else if (type == 0x7F) // MaxKey { return BsonValue.MaxValue; } throw new NotSupportedException("BSON type not supported"); }
protected override void ReadContent(ByteReader reader) { this.CollectionName = reader.ReadString(); this.DocumentCount = reader.ReadInt64(); this.FreeDataPageID = reader.ReadUInt32(); foreach (var index in this.Indexes) { index.Field = reader.ReadString(); index.Unique = reader.ReadBoolean(); index.HeadNode = reader.ReadPageAddress(); index.TailNode = reader.ReadPageAddress(); index.FreeIndexPageID = reader.ReadUInt32(); } }