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();
}
}