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<?php

        #
        # Change the uncommented line to point to your Cacti installation
        #
        $cacti_base = dirname(__FILE__)."/../../";
        # $cacti_base = "C:/xampp/htdocs/cacti/";
        # $cacti_base = "/var/www/html/cacti/";
        # $cacti_base = "/Applications/XAMPP/htdocs/cacti/";
                
        // check if the goalposts have moved
        if( is_dir($cacti_base) && file_exists($cacti_base."/include/global.php") )
        {
                // include the cacti-config, so we know about the database
                require_once($cacti_base."/include/global.php");
        }
        elseif( is_dir($cacti_base) && file_exists($cacti_base."/include/config.php") )
        {
                // include the cacti-config, so we know about the database
                require_once($cacti_base."/include/config.php");
        }
        else
        {
                die("Couldn't find a usable Cacti config - check the first few lines of ".__FILE__."\n");
        }

        require_once 'Weathermap.class.php';
        require_once 'Console/Getopt.php';

        $reverse = 0;
        $inputfile = "";
        $outputfile = "";
        $converted = 0;
        $candidates = 0;
        $totaltargets = 0;
                
        $cg=new Console_Getopt();
        $short_opts='';
        $long_opts=array
                        (
                                        "help",
                                        "input=",
                                        "output=",
                                        "debug",
                                        "reverse",
                        );

        $args=$cg->readPHPArgv();
        $ret=$cg->getopt($args, $short_opts, $long_opts);

        if (PEAR::isError($ret)) { die ("Error in command line: " . $ret->getMessage() . "\n (try --help)\n"); }
                
        $gopts=$ret[0];

        if (sizeof($gopts) > 0)
        {
        foreach ($gopts as $o)
        {
                        switch ($o[0])
            {
                                case '--debug':
                    $weathermap_debugging=TRUE;
                                        break;
                case '--input':
                                        $inputfile=$o[1];
                                        break;
                                case '--output':
                                        $outputfile=$o[1];
                                        break;
                                case '--reverse':
                                        $reverse = 1;
                                        break;
                                case 'help':
                                default:
                                        print "Weathermap DSStats converter. Converts rrd targets to DSStats\n";
                                        print "-------------------------------------------------------------\n";
                                        print "Usage: php convert-to-dstats.php [options]\n\n";
                                        print " --input {filename}         - File to read from\n";
                                        print " --output {filename}        - File to write to\n";
                                #       print " --reverse                  - Convert from DSStats to RRDtool instead\n";
                                        print " --debug                    - Enable debugging output\n";
                                        print " --help                    - Show this message\n";
                                        exit();
                        }
                }
        }

        if($inputfile == "" || $outputfile == "")
        {
                print "You must specify an input and output file. See --help.\n";
                exit();
        }
        
        $map = new WeatherMap;
        
        $map->context = 'cacti';
        $map->rrdtool  = read_config_option("path_rrdtool");
        
        print "Reading config from $inputfile\n";
        
        $map->ReadConfig($inputfile);

        $map->DatasourceInit();
        $map->ProcessTargets();
        
        $allitems = array(&$map->links, &$map->nodes);
        reset($allitems);
        
        while( list($kk,) = each($allitems))
        {
                unset($objects);
                $objects = &$allitems[$kk];

                reset($objects);
                while (list($k,) = each($objects))
                {
                        unset($myobj);
                        $myobj = &$objects[$k];

                        $type = $myobj->my_type();

                        $name=$myobj->name;
                        debug ("ReadData for $type $name: \n");

                        if( ($type=='LINK' && isset($myobj->a)) || ($type=='NODE' && !is_null($myobj->x) ) )
                        {
                                if (count($myobj->targets)>0)
                                {
                                        $totaltargets++;
                                        $tindex = 0;
                                        foreach ($myobj->targets as $target)
                                        {
                                                debug ("ReadData: New Target: $target[4]\n");

                                                $targetstring = $target[0];
                                                $multiply = $target[1];                                 
                                                                                                                                                                                                                
                                                if($reverse == 0 && $target[5] == "WeatherMapDataSource_rrd")
                                                {
                                                        $candidates++;
                                                        # list($in,$out,$datatime) =  $map->plugins['data'][ $target[5] ]->ReadData($targetstring, $map, $myobj);
                                                        debug("ConvertDS: $targetstring is a candidate for conversion.");
                                                        $rrdfile = $targetstring;
                                                        $multiplier = 8;
                                                        $dsnames[IN] = "traffic_in";
                                                        $dsnames[OUT] = "traffic_out";
                                                        
                                                        if(preg_match("/^(.*\.rrd):([\-a-zA-Z0-9_]+):([\-a-zA-Z0-9_]+)$/",$targetstring,$matches))
                                                        {
                                                                $rrdfile = $matches[1];
                                                                
                                                                $dsnames[IN] = $matches[2];
                                                                $dsnames[OUT] = $matches[3];
                                                                                        
                                                                debug("ConvertDS: Special DS names seen (".$dsnames[IN]." and ".$dsnames[OUT].").\n");
                                                        }
                                                        if(preg_match("/^rrd:(.*)/",$rrdfile,$matches))
                                                        {
                                                                $rrdfile = $matches[1];
                                                        }
                                                        if(preg_match("/^gauge:(.*)/",$rrdfile,$matches))
                                                        {
                                                                $rrdfile = $matches[1];
                                                                $multiplier = 1;
                                                        }
                                                        if(preg_match("/^scale:([+-]?\d*\.?\d*):(.*)/",$rrdfile,$matches)) 
                                                        {
                                                                        $rrdfile = $matches[2];
                                                                        $multiplier = $matches[1];
                                                        }
                                                        
                                                        $path_rra = $config["rra_path"];
                                                        $db_rrdname = $rrdfile;
                                                        $db_rrdname = str_replace($path_rra,"<path_rra>",$db_rrdname);
                                                        # special case for relative paths
                                                        $db_rrdname = str_replace("../../rra","<path_rra>",$db_rrdname);
                                                        
                                                        if($db_rrdname != $rrdfile)
                                                        {               
                                                                debug("ConvertDS: Looking for $db_rrdname in the database.");
                                                                
                                                                $SQLcheck = "select data_template_data.local_data_id from data_template_data,data_template_rrd where data_template_data.local_data_id=data_template_rrd.local_data_id and data_template_data.data_source_path='".mysql_real_escape_string($db_rrdname)."'";
                                                                debug("ConvertDS: ".$SQLcheck);
                                                                $results = db_fetch_assoc($SQLcheck);
                                                                
                                                                if( (sizeof($results) > 0) && (isset($results[0]['local_data_id']) ) )
                                                                {                                                       
                                                                        $new_target = sprintf("dsstats:%d:%s:%s", $results[0]['local_data_id'], $dsnames[IN], $dsnames[OUT]);
                                                                        $m = $multiply * $multiplier;
                                                                        if( $m != 1)
                                                                        {
                                                                                if($m == -1) $new_target = "-".$new_target;
                                                                                if($m == intval($m))
                                                                                {
                                                                                        $new_target = sprintf("%d*%s",$m,$new_target);
                                                                                }
                                                                                else
                                                                                {
                                                                                        $new_target = sprintf("%f*%s",$m,$new_target);
                                                                                }
                                                                                
                                                                        }
                                                                        
                                                                        debug("ConvertDS: Converting to $new_target");          
                                                                        $converted++;

                                                                        if($type == 'NODE')
                                                                        {
                                                                                $map->nodes[$name]->targets[$tindex][4] = $new_target;
                                                                        }
                                                                        if($type == 'LINK')
                                                                        {
                                                                                $map->links[$name]->targets[$tindex][4] = $new_target;
                                                                        }                                                                                       
                                                                        
                                                                }
                                                                else
                                                                {
                                                                        warn("ConvertDS: Failed to find a match for $db_rrdname - can't convert to DSStats.");
                                                                }
                                                        }
                                                        else
                                                        {
                                                                warn("ConvertDS: $rrdfile doesn't match with $path_rra - not bothering to look in the database.");
                                                        }
                                                }
                                                
                                                // XXX - not implemented yet!
                                                if($reverse == 1 && $target[5] == "WeatherMapDataSource_dsstats" && 1==0)
                                                {                                                       
                                                        $candidates++;
                                                        # list($in,$out,$datatime) =  $map->plugins['data'][ $target[5] ]->ReadData($targetstring, $map, $myobj);
                                                        debug("ConvertDS: $targetstring is a candidate for conversion.");
                                                        
                                                        $multiplier = 1;
                                                        $dsnames[IN] = "traffic_in";
                                                        $dsnames[OUT] = "traffic_out";
                                                                                                                
                                                        $path_rra = $config["rra_path"];
                                                        $db_rrdname = $rrdfile;
                                                        $db_rrdname = str_replace($path_rra,"<path_rra>",$db_rrdname);
                                                        # special case for relative paths
                                                        $db_rrdname = str_replace("../../rra","<path_rra>",$db_rrdname);
                                                        
                                                                        
                                                        debug("ConvertDS: Looking for $db_rrdname in the database.");
                                                        
                                                        $SQLcheck = "select data_template_data.local_data_id from data_template_data,data_template_rrd where data_template_data.local_data_id=data_template_rrd.local_data_id and data_template_data.data_source_path='".mysql_real_escape_string($db_rrdname)."'";
                                                        debug("ConvertDS: ".$SQLcheck);
                                                        $results = db_fetch_assoc($SQLcheck);
                                                        
                                                        if( (sizeof($results) > 0) && (isset($results[0]['local_data_id']) ) )
                                                        {                                                       
                                                                $new_target = sprintf("dsstats:%d:%s:%s", $results[0]['local_data_id'], $dsnames[IN], $dsnames[OUT]);
                                                                $m = $multiply * $multiplier;
                                                                if( $m != 1)
                                                                {
                                                                        if($m == -1) $new_target = "-".$new_target;
                                                                        if($m == intval($m))
                                                                        {
                                                                                $new_target = sprintf("%d*%s",$m,$new_target);
                                                                        }
                                                                        else
                                                                        {
                                                                                $new_target = sprintf("%f*%s",$m,$new_target);
                                                                        }
                                                                        
                                                                }
                                                                
                                                                debug("ConvertDS: Converting to $new_target");          
                                                                $converted++;

                                                                if($type == 'NODE')
                                                                {
                                                                        $map->nodes[$name]->targets[$tindex][4] = $new_target;
                                                                }
                                                                if($type == 'LINK')
                                                                {
                                                                        $map->links[$name]->targets[$tindex][4] = $new_target;
                                                                }                                                                                       
                                                                
                                                        }
                                                        else
                                                        {
                                                                warn("ConvertDS: Failed to find a match for $db_rrdname - can't convert back to rrdfile.");
                                                        }
                                                        
                                                }
                                        
                                                $tindex++;
                                        }

                                        debug ("ReadData complete for $type $name\n");
                                }
                                else
                                {
                                        debug("ReadData: No targets for $type $name\n");
                                }
                        }
                        else
                        {
                                debug("ReadData: Skipping $type $name that looks like a template\n.");
                        }
                        
                        unset($myobj);
                }
        }
        
        $map->WriteConfig($outputfile);

        print "Wrote new config to $outputfile\n";
        
        print "$totaltargets targets, $candidates rrd-based targets, $converted were actually converted.\n";

        // vim:ts=4:sw=4:
?>

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