Refactored state into a separate class from main Recalc class.

qa-include/app/recalc/RecalcState.php

+<?php
+/*
+	Question2Answer by Gideon Greenspan and contributors
+	http://www.question2answer.org/
+
+	File: qa-include/Q2A/Util/Usage.php
+	Description: Debugging stuff, currently used for tracking resource usage
+
+
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public License
+	as published by the Free Software Foundation; either version 2
+	of the License, or (at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	More about this license: http://www.question2answer.org/license.php
+*/
+
+if (!defined('QA_VERSION')) { // don't allow this page to be requested directly from browser
+	header('Location: ../../');
+	exit;
+}
+
+class Q2A_App_Recalc_State
+{
+	public $state;
+	public $operation;
+	public $length;
+	public $next;
+	public $done;
+
+	private $classes = array(
+		'doreindexcontent' => 'DoReindexContent',
+		'doreindexcontent_pagereindex' => 'DoReindexContent_PageReindex',
+		'doreindexcontent_postcount' => 'DoReindexContent_PostCount',
+		'doreindexcontent_postreindex' => 'DoReindexContent_PostReindex',
+		'doreindexposts_wordcount' => 'DoReindexPosts_WordCount',
+		'dorecountposts' => 'DoRecountPosts',
+		'dorecountposts_postcount' => 'DoRecountPosts_PostCount',
+		'dorecountposts_votecount' => 'DoRecountPosts_VoteCount',
+		'dorecountposts_acount' => 'DoRecountPosts_Acount',
+		'dorecalcpoints' => 'DoRecalcPoints',
+		'dorecalcpoints_usercount' => 'DoRecalcPoints_UserCount',
+		'dorecalcpoints_recalc' => 'DoRecalcPoints_Recalc',
+		'dorefillevents' => 'DoRefillEvents',
+		'dorefillevents_qcount' => 'DoRefillEvents_Qcount',
+		'dorefillevents_refill' => 'DoRefillEvents_Refill',
+		'dorecalccategories' => 'DoRecalcCategories',
+		'dorecalccategories_postcount' => 'DoRecalcCategories_PostCount',
+		'dorecalccategories_postupdate' => 'DoRecalcCategories_PostUpdate',
+		'dorecalccategories_recount' => 'DoRecalcCategories_Recount',
+		'dorecalccategories_backpaths' => 'DoRecalcCategories_BackPaths',
+		'dodeletehidden' => 'DoDeleteHidden',
+		'dodeletehidden_comments' => 'DoDeleteHidden_Comments',
+		'dodeletehidden_answers' => 'DoDeleteHidden_Answers',
+		'dodeletehidden_questions' => 'Dodeletehidden_questions',
+		'doblobstodisk' => 'DoBlobsToDisk',
+		'doblobstodisk_move' => 'DoBlobsToDisk_Move',
+		'doblobstodb' => 'DoBlobsToDB',
+		'doblobstodb_move' => 'DoBlobsToDB_Move',
+		'docachetrim' => 'DoCacheTrim',
+		'docacheclear' => 'DoCacheClear',
+		'docachetrim_process' => 'DoCacheClear_Process',
+		'docacheclear_process' => 'DoCacheClear_Process'
+	);
+
+	/**
+	 * Initialize the counts of resource usage.
+	 */
+	public function __construct($state)
+	{
+		$this->setState($state);
+	}
+
+	public function getState()
+	{
+		return $this->state;
+	}
+
+	public function setState($state = '')
+	{
+		$this->state = $state;
+		list($this->operation, $this->length, $this->next, $this->done) = explode("\t", $state . "\t\t\t\t");
+	}
+
+	public function updateState()
+	{
+		$this->state = $this->operation . "\t" . $this->length . "\t" . $this->next . "\t" . $this->done;
+	}
+
+	public function getOperationClass()
+	{
+		return isset($this->classes[$this->operation]) ? $this->classes[$this->operation] : null;
+	}
+
+	public function allDone()
+	{
+		return $this->done >= $this->length;
+	}
+
+	/**
+	 * Change the $state to represent the beginning of a new $operation
+	 * @param $newOperation
+	 */
+	public function transition($newOperation)
+	{
+		$this->operation = $newOperation;
+		$this->length = $this->stageLength();
+		$this->next = (QA_FINAL_EXTERNAL_USERS && ($newOperation == 'dorecalcpoints_recalc')) ? '' : 0;
+		$this->done = 0;
+
+		$this->updateState();
+	}
+
+	/**
+	 * Return how many steps there will be in recalculation $operation
+	 * @return int
+	 */
+	private function stageLength()
+	{
+		switch ($this->operation) {
+			case 'doreindexcontent_pagereindex':
+				return qa_db_count_pages();
+
+			case 'doreindexcontent_postreindex':
+				return qa_opt('cache_qcount') + qa_opt('cache_acount') + qa_opt('cache_ccount');
+
+			case 'doreindexposts_wordcount':
+				return qa_db_count_words();
+
+			case 'dorecalcpoints_recalc':
+				return qa_opt('cache_userpointscount');
+
+			case 'dorecountposts_votecount':
+			case 'dorecountposts_acount':
+			case 'dorecalccategories_postupdate':
+				return qa_db_count_posts();
+
+			case 'dorefillevents_refill':
+				return qa_opt('cache_qcount') + qa_db_count_posts('Q_HIDDEN');
+
+			case 'dorecalccategories_recount':
+			case 'dorecalccategories_backpaths':
+				return qa_db_count_categories();
+
+			case 'dodeletehidden_comments':
+				return count(qa_db_posts_get_for_deleting('C'));
+
+			case 'dodeletehidden_answers':
+				return count(qa_db_posts_get_for_deleting('A'));
+
+			case 'dodeletehidden_questions':
+				return count(qa_db_posts_get_for_deleting('Q'));
+
+			case 'doblobstodisk_move':
+				return qa_db_count_blobs_in_db();
+
+			case 'doblobstodb_move':
+				return qa_db_count_blobs_on_disk();
+
+			case 'docachetrim_process':
+			case 'docacheclear_process':
+				$cacheDriver = Q2A_Storage_CacheFactory::getCacheDriver();
+				$cacheStats = $cacheDriver->getStats();
+				return $cacheStats['files'];
+		}
+
+		return 0;
+	}
+}