First proposal

application/config/jqm.php

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+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+//
+$config['addable_jobs_black_list'] = array('doomsday', 'sudo rm -fR /', 'sudo mv / /dev/null');

application/controllers/system/JobsQueueMonitor.php

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+<?php
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * Jobs Queue Manager
+ */
+class JobsQueueMonitor extends Auth_Controller
+{
+	/**
+	 * Constructor
+	 */
+	public function __construct()
+	{
+		parent::__construct(
+			array(
+				'getJobsByType' => 'monitoring:r',
+				'getJobsByStatus' => 'monitoring:r',
+				'getJobsByCreationTime' => 'monitoring:r'
+			)
+		);
+
+		// Loads JobsQueueLib
+		$this->load->library('JobsQueueLib');
+	}
+
+	/**
+	 *
+	 */
+	public function getJobsByType()
+	{
+		$jobType = $this->input->get(JobsQueueLib::PARAM_JOB_TYPE);
+
+		$this->outputJson($this->jobsqueuelib->getJobsByType($jobType));
+	}
+
+	/**
+	 *
+	 */
+	public function getJobsByStatus()
+	{
+		$jobStatus = $this->input->get(JobsQueueLib::PARAM_JOB_STATUS);
+
+		$this->outputJson($this->jobsqueuelib->getJobsByStatus($jobStatus));
+	}
+
+	/**
+	 *
+	 */
+	public function getJobsByCreationTime()
+	{
+		$jobCreationTime = $this->input->get(JobsQueueLib::PARAM_JOB_CREATION_TIME);
+
+		$this->outputJson($this->jobsqueuelib->getJobsByCreationTime($jobCreationTime));
+	}
+}

application/core/JQW_Controller.php

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+<?php
+
+if (!defined("BASEPATH")) exit("No direct script access allowed");
+
+/**
+ *
+ */
+abstract class JQW_Controller extends JOB_Controller
+{
+	/**
+	 *
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+
+		// Loads LogLib with different ...
+		$this->load->library('LogLib', array(
+			'classIndex' => 5,
+			'functionIndex' => 5,
+			'lineIndex' => 4,
+			'dbLogType' => 'job', // required
+			'dbExecuteUser' => 'Jobs queue system'
+		));
+
+		// Loads JobsQueueLib
+		$this->load->library('JobsQueueLib');
+	}
+
+	// ------------------------------------------------------------------------------------------------------------
+	// Protected methods to read/write the jobs queue
+
+	/**
+	 *
+	 */
+	protected function getJobsByType($jobType)
+	{
+		$jobs = $this->jobsqueuelib->getJobsByType($jobType);
+
+		if (isError($jobs)) $this->logError(getError($jobs), $jobType);
+
+		return $jobs;
+	}
+
+	/**
+	 *
+	 */
+	protected function addNewJobsToQueue($jobType, $jobs)
+	{
+		$result = $this->jobsqueuelib->addNewJobsToQueue($jobType, $jobs);
+
+		if (isError($result)) $this->logError(getError($result), $jobType);
+
+		return $result;
+	}
+}

application/libraries/JobsQueueLib.php

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+<?php
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+class JobsQueueLib
+{
+	//
+	const STATUS_RUNNING = 'running';
+	const STATUS_NEW = 'new';
+	const STATUS_DONE = 'done';
+
+	//
+	const PARAM_JOB_TYPE = 'jobType';
+	const PARAM_JOB_STATUS = 'jobStatus';
+	const PARAM_JOB_CREATION_TIME = 'jobCreatinTime';
+
+	//
+	const JOB_TYPE_SAP_STAMMDATEN_UPDATE = 'SAPStammdatenUpdate';
+	const JOB_TYPE_SAP_PAYMENT = 'SAPPayment';
+	const JOB_TYPE_OEH_PAYMENT = 'OEHPayment';
+
+	private $_ci; // CI instance
+
+	/**
+	 * Construct
+	 */
+	public function __construct($authenticate = true)
+	{
+		// Gets CI instance
+		$this->_ci =& get_instance();
+	}
+
+	//------------------------------------------------------------------------------------------------------------------
+	// Public methods
+
+	/**
+	 *
+	 */
+	public function getJobsByType()
+	{
+	}
+
+	/**
+	 *
+	 */
+	public function addNewJobsToQueue()
+	{
+	}
+
+	/**
+	 *
+	 */
+	public function getJobsByStatus()
+	{
+	}
+}