C++ scoped_ptr::asDate方法代码示例

    virtual int doRun() {

        // authenticate
        enum Auth::Level authLevel = Auth::NONE;
        auth("", &authLevel);
        uassert(15935, "user does not have write access", authLevel == Auth::WRITE);

        boost::filesystem::path root = getParam("dir");

        // check if we're actually talking to a machine that can write
        if (!isMaster()) {
            return -1;
        }

        if (isMongos() && _db == "" && exists(root / "config")) {
            log() << "Cannot do a full restore on a sharded system" << endl;
            return -1;
        }

        _drop = hasParam( "drop" );
        _keepIndexVersion = hasParam("keepIndexVersion");
        _restoreOptions = !hasParam("noOptionsRestore");
        _restoreIndexes = !hasParam("noIndexRestore");
        _w = getParam( "w" , 1 );

        bool doOplog = hasParam( "oplogReplay" );

        if (doOplog) {
            // fail early if errors

            if (_db != "") {
                log() << "Can only replay oplog on full restore" << endl;
                return -1;
            }

            if ( ! exists(root / "oplog.bson") ) {
                log() << "No oplog file to replay. Make sure you run mongodump with --oplog." << endl;
                return -1;
            }


            BSONObj out;
            if (! conn().simpleCommand("admin", &out, "buildinfo")) {
                log() << "buildinfo command failed: " << out["errmsg"].String() << endl;
                return -1;
            }

            StringData version = out["version"].valuestr();
            if (versionCmp(version, "1.7.4-pre-") < 0) {
                log() << "Can only replay oplog to server version >= 1.7.4" << endl;
                return -1;
            }

            string oplogLimit = getParam( "oplogLimit", "" );
            string oplogInc = "0";

            if(!oplogLimit.empty()) {
                size_t i = oplogLimit.find_first_of(':');
                if ( i != string::npos ) {
                    if ( i + 1 < oplogLimit.length() ) {
                        oplogInc = oplogLimit.substr(i + 1);
                    }

                    oplogLimit = oplogLimit.substr(0, i);
                }

                try {
                    _oplogLimitTS.reset(new OpTime(
                        boost::lexical_cast<unsigned long>(oplogLimit.c_str()),
                        boost::lexical_cast<unsigned long>(oplogInc.c_str())));
                } catch( const boost::bad_lexical_cast& error) {
                    log() << "Could not parse oplogLimit into Timestamp from values ( "
                          << oplogLimit << " , " << oplogInc << " )"
                          << endl;
                    return -1;
                }

                if (!oplogLimit.empty()) {
                    // Only for a replica set as master will have no-op entries so we would need to
                    // skip them all to find the real op
                    scoped_ptr<DBClientCursor> cursor(
                            conn().query("local.oplog.rs", Query().sort(BSON("$natural" << -1)),
                                         1 /*return first*/));
                    OpTime tsOptime;
                    // get newest oplog entry and make sure it is older than the limit to apply.
                    if (cursor->more()) {
                        tsOptime = cursor->next().getField("ts")._opTime();
                        if (tsOptime > *_oplogLimitTS.get()) {
                            log() << "The oplogLimit is not newer than"
                                  << " the last oplog entry on the server."
                                  << endl;
                            return -1;
                        }
                    }

                    BSONObjBuilder tsRestrictBldr;
                    if (!tsOptime.isNull())
                        tsRestrictBldr.appendTimestamp("$gt", tsOptime.asDate());
                    tsRestrictBldr.appendTimestamp("$lt", _oplogLimitTS->asDate());

//.........这里部分代码省略.........