Long Run Tasks first draft

application/libraries/LongRunTaskLib.php

@@ -0,0 +1,66 @@
+<?php
+
+if (!defined('BASEPATH')) exit('No direct script access allowed');
+
+/**
+ * Library that contains all the needed functionalities to operate with the Long Run Tasks
+ */
+class LongRunTaskLib extends JobsQueueLib
+{
+	const CFG_LRT_MAX_NUMBER_SYSTEM = 'lrt_max_number_system';
+	const CFG_LRT_TYPES = 'lrt_types';
+
+	/**
+	 * Constructor
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+
+		// Loads the Long Run Tasks configs
+		$this->_ci->config->load('lrt');
+	}
+
+	//------------------------------------------------------------------------------------------------------------------
+	// Public methods
+
+	/**
+	 * Get the oldest added LRTs to the queue having status = new
+	 * The maximum number of returned queued LRTs is limited by:
+	 * number of currently running LRTs - maximum allowed number of LRTs for the system
+	 */
+	public function getLRTs()
+	{
+		// Get all the running LRTs
+		$runningLrtsResult = $this->getJobsByTypeStatus($this->_ci->config->item(self::CFG_LRT_TYPES)), JobsQueueLib::STATUS_RUNNING);
+
+		if (isError($runningLrtsResult)) return $runningLrtsResult;
+
+		// The number of the currently running LRTs - the maximum LRTs for the system
+		$max_number_of_lrts = $this->_ci->config->item(self::CFG_LRT_MAX_NUMBER_SYSTEM)) - count(getData($runningLrtsResult));
+
+		// Get the oldest LRTs added to the queue
+		return $this->getOldestJobs($this->_ci->config->item(self::CFG_LRT_TYPES)), $max_number_of_lrts);
+	}
+
+	/**
+	 *
+	 */
+	public function addNewLRTsToQueue($type, $lrts)
+	{
+		return $this->addNewJobsToQueue($type, $lrts);
+	}
+
+	//------------------------------------------------------------------------------------------------------------------
+	// Public static methods
+
+	/**
+	 * Utility method to generate a LTR with the given parameters and return it inside an array
+	 * ready to be used by addNewLRTsToQueue
+	 */
+	public static function generateLtrs($status, $input)
+	{
+		return self::generateJobs($status, $input);
+	}
+}
+