A simple abstract class to create a munin plugin

MuninPluginAbstract.php

<?php

class Field
{
  protected $_name;
  protected $_label;
  protected $_color;
  protected $_value;

  public function Field($label, $color = false)
  {
    $this->_name = strtolower($label);
    $this->_label = $label;
    $this->_color = $color;
    $this->_value = 0;
  }

  public function setName($name)
  {
    $this->_name = $name;
    return $this;
  }

  public function getName()
  {
    return $this->_name;
  }

  public function setLabel($label)
  {
    $this->_name = $name;
    return $this;
  }

  public function getLabel()
  {
    return $this->_label;
  }

  public function setColor($color)
  {
    $this->_color = $color;
    return $this;
  }

  public function getColor()
  {
    return $this->_color;
  }

  public function setValue($value)
  {
    $this->_value = $value;
    $this->_isSet = true;
    return $this;
  }

  public function getValue()
  {
    return $this->_value;
  }
}

class MuninPluginAbstract
{
  protected $_graphTitle;
  protected $_verticalLabel;
  protected $_fields;
  protected $_graphCategory;

  public function config()
  {
    print 'graph_title ' . $this->_graphTitle . "\n";
    print 'graph_category ' . $this->_graphCategory . "\n";
    print 'graph_vlabel ' . $this->_verticalLabel . "\n";
    foreach ($this->_fields as $field) {
      print $field->getName() . '.label ' . $field->getLabel() . "\n";
      if ($field->getColor() !== false) {
	print $field->getName() . '.colour ' . $field->getColor() . "\n";
      }
    }
  }

  public function getValues()
  {
    foreach ($this->_fields as $field) {
      print $field->getName() . '.value ' . $field->getValue() . "\n";
    }
  }
}
?>

randomPlugin.php

#!/usr/bin/php -q
<?php

require_once realpath(dirname(__FILE__) . '/MuninPluginAbstract.php');

class RandomPlugin extends MuninPluginAbstract
{
  public function RandomPlugin()
  {
    $this->_graphTitle = 'Random Value graph';
    $this->_graphCategory = 'Random';
    $this->_verticalLabel = 'Number from random';

    $this->_fields = array('Random1' => new Field('Random1'),
			   'Random2' => new Field('Random2'),
			   'Random3' => new Field('Random3', 'FF0000')
			   );
    srand(time());
  }

  public function getValues()
  {
    $this->_fields['Random1']->setValue(rand());
    $this->_fields['Random2']->setValue(rand());
    $this->_fields['Random3']->setValue(rand());
    parent::getValues();
  }
}

$randomPlugin = new RandomPlugin();
if (isset($argv[1]) === true && ($argv[1] == 'config')) {
  $randomPlugin->config();
} else {
  $randomPlugin->getValues();
}
?>