www/database.php

   1
   2 <?php
   3
   4 include 'monitorconfig.php';
   5 define("PICKLE_PATH", MONITOR_DATA_ROOTWEB);
   6
   7 class Pickle
   8 {
   9         public function load($name)
  10         {
  11                 if ( ! $this->exists("production." . $name) )
  12                 {
  13                         print "Exception: No such file %s" . $name . "\n";
  14                         return NULL;
  15                 }
  16                 $name = "production." . $name;
  17                 $fname = $this->__file($name);
  18                 $o = unserialize(file_get_contents($fname));
  19
  20                 return $o;
  21         }
  22         public function dump($name, $obj)
  23         {
  24                 if ( ! file_exists(PICKLE_PATH) )
  25                 {
  26                         if ( ! mkdir(PICKLE_PATH, 0777, True) )
  27                         {
  28                                 print "Exception: Unable to create directory :" . PICKLE_PATH . "\n";
  29                         }
  30                 }
  31                 $name = "production." . $name;
  32                 $fname = $this->__file($name);
  33
  34                 return file_put_contents($fname, serialize($obj));
  35         }
  36         private function __file($name)
  37         {
  38                 return sprintf("%s/%s.phpserial", PICKLE_PATH, $name);
  39         }
  40
  41         public function exists($name)
  42         {
  43                 return file_exists($this->__file($name));
  44         }
  45
  46         public function remove($name)
  47         {
  48                 return unlink($this->__file($name));
  49         }
  50
  51         public function if_cached_else($cond, $name, $function)
  52         {
  53                 if ( $cond and $this->exists("production.%s" % $name) )
  54                 {
  55                         $o = $this->load($name);
  56                 } else {
  57                         $o = $function();
  58                         if ($cond)
  59                         {
  60                                 $this->dump($name, $o); # cache the object using 'name'
  61                         }
  62                 }
  63                 return o;
  64         }
  65 }
  66
  67 ?>