public BSONDocument(BSONIterator it) : this()
{
while (it.Next() != BSONType.EOO)
{
Add(it.FetchCurrentValue());
}
}
public BSONDocument(Stream bstream) : this()
{
using (BSONIterator it = new BSONIterator(bstream)) {
while (it.Next() != BSONType.EOO)
{
Add(it.FetchCurrentValue());
}
}
}
public BSONDocument(byte[] bsdata) : this()
{
using (BSONIterator it = new BSONIterator(bsdata)) {
while (it.Next() != BSONType.EOO)
{
Add(it.FetchCurrentValue());
}
}
}
public BSONValue FetchCurrentValue()
{
CheckDisposed();
if (_entryDataSkipped)
{
return(_entryDataValue);
}
_entryDataSkipped = true;
switch (_ctype)
{
case BSONType.EOO:
case BSONType.UNDEFINED:
case BSONType.NULL:
case BSONType.MAXKEY:
case BSONType.MINKEY:
_entryDataValue = new BSONValue(_ctype, _entryKey);
break;
case BSONType.OID:
Debug.Assert(_entryLen == 12);
_entryDataValue = new BSONValue(_ctype, _entryKey, new BSONOid(_input));
break;
case BSONType.STRING:
case BSONType.CODE:
case BSONType.SYMBOL:
{
Debug.Assert(_entryLen - 1 >= 0);
string sv = Encoding.UTF8.GetString(_input.ReadBytes(_entryLen - 1));
_entryDataValue = new BSONValue(_ctype, _entryKey, sv);
var rb = _input.ReadByte();
Debug.Assert(rb == 0x00); //trailing zero byte
break;
}
case BSONType.BOOL:
_entryDataValue = new BSONValue(_ctype, _entryKey, _input.ReadBoolean());
break;
case BSONType.INT:
_entryDataValue = new BSONValue(_ctype, _entryKey, _input.ReadInt32());
break;
case BSONType.OBJECT:
case BSONType.ARRAY:
{
BSONDocument doc = (_ctype == BSONType.OBJECT ? new BSONDocument() : new BSONArray());
BSONIterator sit = new BSONIterator(this);
while (sit.Next() != BSONType.EOO)
{
doc.Add(sit.FetchCurrentValue());
}
_entryDataValue = new BSONValue(_ctype, _entryKey, doc);
break;
}
case BSONType.DOUBLE:
_entryDataValue = new BSONValue(_ctype, _entryKey, _input.ReadDouble());
break;
case BSONType.LONG:
_entryDataValue = new BSONValue(_ctype, _entryKey, _input.ReadInt64());
break;
case BSONType.DATE:
_entryDataValue = new BSONValue(_ctype, _entryKey,
BSONConstants.Epoch.AddMilliseconds(_input.ReadInt64()));
break;
case BSONType.TIMESTAMP:
{
int inc = _input.ReadInt32();
int ts = _input.ReadInt32();
_entryDataValue = new BSONValue(_ctype, _entryKey,
new BSONTimestamp(inc, ts));
break;
}
case BSONType.REGEX:
{
string re = _input.ReadCString();
string opts = _input.ReadCString();
_entryDataValue = new BSONValue(_ctype, _entryKey,
new BSONRegexp(re, opts));
break;
}
case BSONType.BINDATA:
{
byte subtype = _input.ReadByte();
BSONBinData bd = new BSONBinData(subtype, _entryLen - 1, _input);
_entryDataValue = new BSONValue(_ctype, _entryKey, bd);
break;
}
case BSONType.DBREF:
{
//Unsupported DBREF!
SkipData(true);
_entryDataValue = new BSONValue(_ctype, _entryKey);
break;
}
case BSONType.CODEWSCOPE:
{
int cwlen = _entryLen + 4;
Debug.Assert(cwlen > 5);
int clen = _input.ReadInt32(); //code length
string code = Encoding.UTF8.GetString(_input.ReadBytes(clen));
BSONCodeWScope cw = new BSONCodeWScope(code);
BSONIterator sit = new BSONIterator(_input, _input.ReadInt32());
while (sit.Next() != BSONType.EOO)
{
cw.Add(sit.FetchCurrentValue());
}
_entryDataValue = new BSONValue(_ctype, _entryKey, cw);
break;
}
}
return(_entryDataValue);
}
internal BSONIterator(BSONIterator it) : this(it._input, it._entryLen + 4)
{
_closeOnDispose = false;
it._entryDataSkipped = true;
}
public BSONDocument(BSONIterator it, string[] fields) : this()
{
Array.Sort(fields);
BSONType bt;
int ind = -1;
int nfc = 0;
foreach (string f in fields)
{
if (f != null)
{
nfc++;
}
}
while ((bt = it.Next()) != BSONType.EOO)
{
if (nfc < 1)
{
continue;
}
string kk = it.CurrentKey;
if ((ind = Array.IndexOf(fields, kk)) != -1)
{
Add(it.FetchCurrentValue());
fields[ind] = null;
nfc--;
}
else if (bt == BSONType.OBJECT || bt == BSONType.ARRAY)
{
string[] narr = null;
for (var i = 0; i < fields.Length; ++i)
{
var f = fields[i];
if (f == null)
{
continue;
}
if (f.IndexOf(kk, StringComparison.Ordinal) == 0 &&
f.Length > kk.Length + 1 &&
f[kk.Length] == '.')
{
if (narr == null)
{
narr = new string[fields.Length];
}
narr[i] = f.Substring(kk.Length + 1);
fields[i] = null;
nfc--;
}
}
if (narr != null)
{
BSONIterator nit = new BSONIterator(it);
BSONDocument ndoc = new BSONDocument(nit, narr);
if (ndoc.KeysCount > 0)
{
Add(new BSONValue(bt, kk, ndoc));
}
}
}
}
it.Dispose();
}
