FieldParser::FieldState FieldParser::extract(BSONObj doc,
const BSONField<BSONObj>& field,
BSONObj* out,
string* errMsg)
{
BSONElement elem = doc[field.name()];
if (elem.eoo()) {
if (field.hasDefault()) {
*out = field.getDefault();
return FIELD_DEFAULT;
}
else {
return FIELD_NONE;
}
}
if (elem.type() == Object) {
*out = elem.embeddedObject().getOwned();
return FIELD_SET;
}
_genFieldErrMsg(doc, field, "object", errMsg);
return FIELD_INVALID;
}
FieldParser::FieldState FieldParser::extract(BSONObj doc,
const BSONField<bool>& field,
bool* out,
string* errMsg)
{
BSONElement elem = doc[field.name()];
if (elem.eoo()) {
if (field.hasDefault()) {
*out = field.getDefault();
return FIELD_DEFAULT;
}
else {
return FIELD_NONE;
}
}
if (elem.type() == Bool) {
*out = elem.boolean();
return FIELD_SET;
}
_genFieldErrMsg(doc, field, "boolean", errMsg);
return FIELD_INVALID;
}
FieldParser::FieldState FieldParser::extractNumber(BSONObj doc,
const BSONField<long long>& field,
long long* out,
string* errMsg)
{
BSONElement elem = doc[field.name()];
if (elem.eoo()) {
if (field.hasDefault()) {
*out = field.getDefault();
return FIELD_DEFAULT;
}
else {
return FIELD_NONE;
}
}
if (elem.isNumber()) {
*out = elem.numberLong();
return FIELD_SET;
}
_genFieldErrMsg(doc, field, "number", errMsg);
return FIELD_INVALID;
}
FieldParser::FieldState FieldParser::extract(BSONObj doc,
const BSONField<int>& field,
int* out,
string* errMsg)
{
BSONElement elem = doc[field.name()];
if (elem.eoo()) {
if (field.hasDefault()) {
*out = field.getDefault();
return FIELD_DEFAULT;
}
else {
return FIELD_NONE;
}
}
if (elem.type() == NumberInt) {
*out = elem.numberInt();
return FIELD_SET;
}
_genFieldErrMsg(doc, field, "integer", errMsg);
return FIELD_INVALID;
}
FieldParser::FieldState FieldParser::extract(BSONObj doc,
const BSONField<Date_t>& field,
Date_t* out,
string* errMsg)
{
BSONElement elem = doc[field.name()];
if (elem.eoo()) {
if (field.hasDefault()) {
*out = field.getDefault();
return FIELD_DEFAULT;
}
else {
return FIELD_NONE;
}
}
if (elem.type() == Date) {
*out = elem.date();
return FIELD_SET;
}
_genFieldErrMsg(doc, field, "date or timestamp", errMsg);
return FIELD_INVALID;
}
FieldParser::FieldState FieldParser::extract( BSONObj doc,
const BSONField<BSONObj>& field,
BSONObj* out,
string* errMsg ) {
return extract( doc[field.name()], field, out, errMsg );
}
FieldParser::FieldState FieldParser::extractNumber( BSONObj doc,
const BSONField<double>& field,
double* out,
string* errMsg ) {
return extractNumber( doc[field.name()], field, out, errMsg );
}
