<?php
/* Reminder: always indent with 4 spaces (no tabs). */
// +---------------------------------------------------------------------------+
// | Copyright (c) 2008, Demian Turner |
// | All rights reserved. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | o Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | o Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution. |
// | o The names of the authors may not be used to endorse or promote |
// | products derived from this software without specific prior written |
// | permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
// | |
// +---------------------------------------------------------------------------+
// | Seagull 0.6 |
// +---------------------------------------------------------------------------+
// | Task.php |
// +---------------------------------------------------------------------------+
// | Author: Demian Turner <demian@phpkitchen.com> |
// +---------------------------------------------------------------------------+
/**
* Abstract task class.
*
* @package SGL
* @author Demian Turner <demian@phpkitchen.com>
* @abstract
*/
abstract class SGL_Task
{
/**
* @abstract
*
*/
public function run($data = null)
{
return $data;
}
/**
* Example ...
* @access private
*/
protected function &_getDal()
{
$oServiceLocator = &ServiceLocator::instance();
$oDal = $oServiceLocator->get('dal');
if (!$oDal) {
$oDal = DA_FooBar::singleton();
$oServiceLocator->register('dal', $oDal);
}
return $oDal;
}
}
/**
* Used for building and running a task list.
*
* @package SGL
* @author Demian Turner <demian@phpkitchen.com>
*/
class SGL_TaskRunner
{
/**
* collection of Task objects
* @var array
*/
var $aTasks = array();
var $data = null;
public function addData($data)
{
$this->data = $data;
}
/**
* Method to register a new Task object in
* the runner collection of tasks
*
* @param object $oTask of type Task
* @return boolean true on add success false on failure
* @access public
*/
public function addTask($oTask)
{
if (is_a($oTask, 'SGL_Task')) {
$this->aTasks[] = & $oTask;
return true;
}
return SGL::raiseError('an SGL_Task object was expected');
}
public function main()
{
$ret = array();
foreach ($this->aTasks as $k => $oTask) {
$return = $oTask->run($this->data);
// log to system tmp dir if we're installing
if (!defined('SGL_INSTALLED')) {
$err = is_a($return, 'PEAR_Error')
? print_r($return, 1)
: 'ok';
$data = get_class($oTask) .': '. $err;
if ($err != 'ok') {
error_log($data);
}
}
if (!isset($err) || $err == 'ok') {
$ret[] = $return;
}
}
///FIX PHP 5.3(fix error when $ret is object) by Witoon+Puttipong
if (is_object($ret)) {
$ret =(array)$ret;
}
return implode('', $ret);
}
}
?>
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