71 lines
2.0 KiB
C++
71 lines
2.0 KiB
C++
// gridconfig.cpp
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/**
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* Copyright (C) 2008 10gen Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "stdafx.h"
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#include "../util/message.h"
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#include "../util/unittest.h"
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#include "../client/connpool.h"
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#include "../db/pdfile.h"
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#include "gridconfig.h"
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#include "../client/model.h"
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namespace mongo {
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/* --- Machine --- */
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map<string, Machine*> Machine::machines;
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/* --- Grid --- */
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Grid grid;
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DBConfig* Grid::getDBConfig( string database ){
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{
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string::size_type i = database.find( "." );
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if ( i != string::npos )
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database = database.substr( 0 , i );
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}
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DBConfig*& cc = _databases[database];
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if ( cc == 0 ) {
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cc = new DBConfig();
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if ( !cc->loadByName(database.c_str()) ) {
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// note here that cc->primary == 0.
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log() << "couldn't find database [" << database << "] in config db" << endl;
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}
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}
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return cc;
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}
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Machine* Grid::owner(const char *ns, BSONObj& objOrKey) {
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DBConfig *cc = getDBConfig( nsToClient(ns) );
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uassert( string("dbgrid: no config for db for ") + ns , cc );
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if ( !cc->partitioned ) {
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if ( !cc->primary )
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throw UserAssertionException(string("dbgrid: no primary for ")+ns);
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return cc->primary;
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}
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uassert("dbgrid: not implemented 100", false);
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return 0;
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}
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}
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