bool run(const char *ns, BSONObj& cmdObj, string& errmsg, BSONObjBuilder& result, bool){
string dbName = getDBName( ns );
string collection = cmdObj.firstElement().valuestrsafe();
string fullns = dbName + "." + collection;
BSONObj filter = cmdObj["query"].embeddedObject();
DBConfig * conf = grid.getDBConfig( dbName , false );
if ( ! conf || ! conf->isShardingEnabled() || ! conf->isSharded( fullns ) ){
ScopedDbConnection conn( conf->getPrimary() );
result.append( "n" , (double)conn->count( fullns , filter ) );
conn.done();
result.append( "ok" , 1 );
return true;
}
ChunkManager * cm = conf->getChunkManager( fullns );
massert( "how could chunk manager be null!" , cm );
vector<Chunk*> chunks;
cm->getChunksForQuery( chunks , filter );
unsigned long long total = 0;
for ( vector<Chunk*>::iterator i = chunks.begin() ; i != chunks.end() ; i++ ){
Chunk * c = *i;
total += c->countObjects();
}
result.append( "n" , (double)total );
result.append( "ok" , 1 );
return true;
}
