internal static JObject FromBson(byte[] buffer, ref int offset, InstanceFactory factory = null)
{
JObject result = new JObject();
int startingOffset = offset;
int len = (Int32)SerializationUtilities.Unmarshall(buffer, ref offset, TypeCode.Int32);
while (offset < startingOffset + len - 1)
{
// get the element type
var bsonType = (BsonTypes)buffer[offset++];
// get the element name
var idxNul = JToken.FindNul(buffer, offset);
if (idxNul == -1)
{
throw new Exception("Missing ename terminator");
}
var ename = JToken.ConvertToString(buffer, offset, idxNul - offset);
offset = idxNul + 1;
JToken item = null;
switch (bsonType)
{
case BsonTypes.BsonArray:
item = JArray.FromBson(buffer, ref offset, factory);
break;
case BsonTypes.BsonDocument:
item = JObject.FromBson(buffer, ref offset, factory);
break;
case BsonTypes.BsonNull:
item = new JValue();
break;
case BsonTypes.BsonBoolean:
case BsonTypes.BsonDateTime:
case BsonTypes.BsonDouble:
case BsonTypes.BsonInt32:
case BsonTypes.BsonInt64:
case BsonTypes.BsonString:
item = JValue.FromBson(bsonType, buffer, ref offset);
break;
}
result.Add(ename, item);
}
if (buffer[offset++] != 0)
{
throw new Exception("bad format - missing trailing null on bson document");
}
return(result);
}
public override void ToBson(byte[] buffer, ref int offset)
{
if (buffer != null)
{
if (this.Value != null)
{
SerializationUtilities.Marshall(buffer, ref offset, this.Value);
}
}
else
{
offset += this.GetBsonSize();
}
}
public byte[] ToBson()
{
var size = this.GetBsonSize("") + 5;
var buffer = new byte[size];
int offset = 4;
this.ToBson("", buffer, ref offset);
// Write the trailing nul
buffer[offset++] = (byte)0;
// Write the completed size
int zero = 0;
SerializationUtilities.Marshall(buffer, ref zero, offset);
return(buffer);
}
public static JToken FromBson(byte[] buffer, InstanceFactory factory = null)
{
var offset = 0;
var len = (Int32)SerializationUtilities.Unmarshall(buffer, ref offset, TypeCode.Int32);
JToken dserResult = null;
while (offset < buffer.Length - 1)
{
var bsonType = (BsonTypes)buffer[offset++];
// eat the empty ename
var idxNul = JToken.FindNul(buffer, offset);
if (idxNul == -1)
{
throw new Exception("Missing ename terminator");
}
var ename = JToken.ConvertToString(buffer, offset, idxNul - offset);
offset = idxNul + 1;
switch (bsonType)
{
case BsonTypes.BsonDocument:
dserResult = JObject.FromBson(buffer, ref offset, factory);
break;
case BsonTypes.BsonArray:
dserResult = JArray.FromBson(buffer, ref offset, factory);
break;
default:
throw new Exception("unexpected top-level object type in bson");
}
}
if (buffer[offset++] != 0)
{
throw new Exception("bad format - missing trailing null on bson document");
}
return(dserResult);
}
internal static JArray FromBson(byte[] buffer, ref int offset, InstanceFactory factory = null)
{
BsonTypes elementType = (BsonTypes)0;
int startingOffset = offset;
int len = (Int32)SerializationUtilities.Unmarshall(buffer, ref offset, TypeCode.Int32);
var list = new ArrayList();
int idx = 0;
while (offset < startingOffset + len - 1)
{
// get the element type
var bsonType = (BsonTypes)buffer[offset++];
if (elementType == (BsonTypes)0)
{
elementType = bsonType;
}
if (bsonType != elementType)
{
throw new Exception("all array elements must be of the same type");
}
// get the element name
var idxNul = JToken.FindNul(buffer, offset);
if (idxNul == -1)
{
throw new Exception("Missing ename terminator");
}
var ename = JToken.ConvertToString(buffer, offset, idxNul - offset);
var elemIdx = int.Parse(ename);
if (elemIdx != idx)
{
throw new Exception("sparse arrays are not supported");
}
++idx;
offset = idxNul + 1;
JToken item = null;
switch (bsonType)
{
case BsonTypes.BsonArray:
item = JArray.FromBson(buffer, ref offset, factory);
break;
case BsonTypes.BsonDocument:
item = JObject.FromBson(buffer, ref offset, factory);
break;
case BsonTypes.BsonNull:
item = new JValue();
break;
case BsonTypes.BsonBoolean:
case BsonTypes.BsonDateTime:
case BsonTypes.BsonDouble:
case BsonTypes.BsonInt32:
case BsonTypes.BsonInt64:
case BsonTypes.BsonString:
item = JValue.FromBson(bsonType, buffer, ref offset);
break;
}
list.Add(item);
}
if (buffer[offset++] != 0)
{
throw new Exception("bad format - missing trailing null on bson document");
}
return(new JArray((JToken[])list.ToArray(typeof(JToken))));
}
