allow graph-only configs with external file references in graph rows

[php-utility-classes.git] / include / classes / rrdstat.php-class

diff --git a/include/classes/rrdstat.php-class b/include/classes/rrdstat.php-class
index 6eed1bf259c75360e3aab44cac1ed2cfc3a78df0..2eece6d227f1f7a09b2cbdf5d1b0a586fded0d9d 100644 (file)
--- a/include/classes/rrdstat.php-class
+++ b/include/classes/rrdstat.php-class
@@ -20,7 +20,7 @@ class rrdstat {
     // ***** init RRD stat module *****
     $this->set_def($rrdconfig, $conf_id);
 
-    if (!is_null($this->rrd_file)) {
+    if (($this->status == 'unused') && !is_null($this->rrd_file)) {
       if (!is_writeable($this->rrd_file)) {
         if (!file_exists($this->rrd_file)) {
           if (@touch($this->rrd_file)) { $this->create(); }
@@ -59,10 +59,16 @@ class rrdstat {
       $iinfo = $complete_conf;
     }
 
-    if (!isset($iinfo['file'])) { return false; }
+    if (isset($iinfo['graph-only']) && $iinfo['graph-only'] && !is_null($conf_id)) {
+      $this->basename = $conf_id;
+      $this->status = 'graphonly';
+    }
+    else {
+      if (!isset($iinfo['file'])) { return false; }
 
-    $this->rrd_file = $iinfo['file'];
-    $this->basename = (substr($this->rrd_file, -4) == '.rrd')?substr($this->rrd_file, 0, -4):$this->rrd_file;
+      $this->rrd_file = $iinfo['file'];
+      $this->basename = (substr($this->rrd_file, -4) == '.rrd')?substr($this->rrd_file, 0, -4):$this->rrd_file;
+    }
 
     // fields (data sources, DS)
     //  name - DS name
@@ -154,7 +160,8 @@ class rrdstat {
       if (!is_null($evalcode)) {
         ob_start();
         eval($evalcode);
-        $upvals = explode("\n", ob_get_contents());
+        $ret = ob_get_contents();
+        if (strlen($ret)) { $upvals = explode("\n", $ret); }
         ob_end_clean();
       }
       $walkfunc = create_function('&$val,$key', '$val = is_numeric($val)?$val:"U";');
@@ -195,8 +202,11 @@ class rrdstat {
         $upvals[] = is_null($val)?'U':$val;
       }
     }
-    $update_cmd = 'rrdtool update '.$this->rrd_file.' N:'.implode(':', $upvals);
-    $return = `$update_cmd 2>&1`;
+    $return = null;
+    if (count($upvals)) {
+      $update_cmd = 'rrdtool update '.$this->rrd_file.' N:'.implode(':', $upvals);
+      $return = `$update_cmd 2>&1`;
+    }
 
     if (strpos($return, 'ERROR') !== false) {
       trigger_error($this->rrd_file.' - rrd update error: '.$return, E_USER_WARNING);
@@ -255,7 +265,7 @@ class rrdstat {
       $gColors = array('#00CC00','#0000FF','#000000','#FF0000','#00FF00','#FFFF00','#FF00FF','#00FFFF','#808080','#800000','#008000','#000080','#808000','#800080','#008080','#C0C0C0');
     }
 
-    if (!in_array($this->status, array('ok','readonly'))) { trigger_error('Error: rrd status is '.$this->status, E_USER_WARNING); return false; }
+    if (!in_array($this->status, array('ok','readonly','graphonly'))) { trigger_error('Error: rrd status is '.$this->status, E_USER_WARNING); return false; }
 
     // assemble configuration
     $gconf = (array)$extra;
@@ -315,8 +325,8 @@ class rrdstat {
       $duration = isset($gconf['duration'])?$gconf['duration']:396*86400; // 365+31 days
       $slice = isset($gconf['slice'])?$gconf['slice']:86400; // 1 day
       // vertical lines at month borders
-      $addSpecial .= ' VRULE:'.strtotime(date('Y-01-01')).'#FF0000';
-      $addSpecial .= ' VRULE:'.strtotime(date('Y-01-01').' -1 year').'#FF0000';
+      $addSpecial .= ' VRULE:'.strtotime(date('Y-01-01 12:00:00')).'#FF0000';
+      $addSpecial .= ' VRULE:'.strtotime(date('Y-01-01 12:00:00').' -1 year').'#FF0000';
     }
     else {
       $duration = isset($gconf['duration'])?$gconf['duration']:$this->rrd_step*500; // 500 steps
@@ -332,6 +342,7 @@ class rrdstat {
           $grow['name'] = $erow['name'].(isset($erow['scale'])?'_tmp':'');
           if ($grow['dType'] == 'DEF') {
             $grow['dsname'] = isset($erow['dsname'])?$erow['dsname']:$erow['name'];
+            if (isset($erow['dsfile'])) { $grow['dsfile'] = $erow['dsfile']; }
             $grow['cf'] = isset($erow['cf'])?$erow['cf']:'AVERAGE';
           }
           else {
@@ -352,6 +363,7 @@ class rrdstat {
             if (!isset($gconf['show_legend'])) { $gconf['show_legend'] = true; }
           }
           if (isset($erow['stack'])) { $grow['stack'] = ($erow['stack'] == true); }
+          if (isset($erow['desc'])) { $grow['desc'] = $erow['desc']; }
           $graphrows[] = $grow;
         }
       }
@@ -401,7 +413,7 @@ class rrdstat {
     else {
       foreach ($graphrows as $grow) {
         if (isset($grow['gType']) && strlen($grow['gType'])) {
-          $textprefix = isset($grow['legend'])?$grow['legend']:$grow['name'];
+          $textprefix = isset($grow['desc'])?$grow['desc']:(isset($grow['legend'])?$grow['legend']:$grow['name']);
           // XXX: use lines below once we have rrdtol 1.2
           // $graphrows[] = array('dType'=>'VDEF', 'name'=>$grow['name'].'_last', 'rpn_expr'=>$grow['name'].',LAST');
           // $specialrows[] = array('sType'=>'PRINT', 'name'=>$grow['name'].'_last', 'text'=>'%3.2lf%s');
@@ -440,7 +452,11 @@ class rrdstat {
     foreach ($graphrows as $grow) {
       if (isset($grow['dType']) && strlen($grow['dType'])) {
         $gDefs .= ' '.$grow['dType'].':'.$grow['name'].'=';
-        $gDefs .= ($grow['dType']=='DEF')?$this->rrd_file.':'.$grow['dsname'].':'.$grow['cf']:$grow['rpn_expr'];
+        if ($grow['dType'] == 'DEF') {
+          $gDefs .= isset($grow['dsfile'])?$grow['dsfile']:$this->rrd_file;
+          $gDefs .= ':'.$grow['dsname'].':'.$grow['cf'];
+        }
+        else { $gDefs .= $grow['rpn_expr']; }
       }
       if (isset($grow['gType']) && strlen($grow['gType'])) {
         // XXX: change from STACK type to STACK flag once we have rrdtool 1.2
@@ -510,7 +526,7 @@ class rrdstat {
       $out .= '<p class="last_up">Last Update: '.(is_null($this->last_update())?'unknown':date('Y-m-d H:i:s', $this->last_update())).'</p>';
     }
 
-    if (in_array($this->status, array('ok','readonly'))) {
+    if (in_array($this->status, array('ok','readonly','graphonly'))) {
       $g_sub = isset($pconf['graph_sub'])?$pconf['graph_sub']:null;
       foreach (array('day','week','month','year') as $tframe) {
         $ret = $this->graph($tframe, $g_sub, $graph_extras);