BSONObj getKey( const BSONObj& obj , const BSONObj& keyPattern , ScriptingFunction func , double avgSize , Scope * s ) {
if ( func ) {
BSONObjBuilder b( obj.objsize() + 32 );
b.append( "0" , obj );
int res = s->invoke( func , b.obj() );
uassert( 10041 , (string)"invoke failed in $keyf: " + s->getError() , res == 0 );
int type = s->type("return");
uassert( 10042 , "return of $key has to be an object" , type == Object );
return s->getObject( "return" );
}
return obj.extractFields( keyPattern , true );
}
bool ShardChunkManager::belongsToMe( const BSONObj& obj ) const {
if ( _rangesMap.size() == 0 )
return false;
return _belongsToMe( obj.extractFields( _key , true ) );
}