From f879964e92ea58a0301a51f7cf292b36d9418611 Mon Sep 17 00:00:00 2001
From: Roly Rudy Gutierrez Pinto <gproly@gmail.com>
Date: Wed, 19 Apr 2017 16:35:56 -0400
Subject: [PATCH] HOR-2967

---
 workflow/engine/classes/class.plugin.php | 89 ++++++++++++++++++++++++
 1 file changed, 89 insertions(+)

diff --git a/workflow/engine/classes/class.plugin.php b/workflow/engine/classes/class.plugin.php
index 675963b6e..c34016d05 100644
--- a/workflow/engine/classes/class.plugin.php
+++ b/workflow/engine/classes/class.plugin.php
@@ -514,6 +514,95 @@ class PMPlugin
             }
         }
     }
+    
+    /**
+     * This function is an analog of the command: '$ ./processmaker flush-cache', 
+     * only its use is recommended only when enabling the plugin (inside the 
+     * enable function).
+     * IMPORTANT! Inappropriate use may render the 'API/REST' unusable.
+     * Example:
+     * <?php
+     * G::LoadClass("plugin");
+     * class myPlugin extends PMPlugin {
+     * 
+     * public function myPlugin($sNamespace, $sFilename = null) {
+     *         $res = parent::PMPlugin($sNamespace, $sFilename);
+     *         $this->sFriendlyName = "myPlugin Plugin";
+     *         $this->sDescription = "Autogenerated plugin for class myPlugin";
+     *         $this->sPluginFolder = "myPlugin";
+     *         $this->sSetupPage = "setup";
+     *         $this->iVersion = 1;
+     *         $this->aWorkspaces = null;
+     *         return $res;
+     *     }
+     *     public function setup() {
+     * 
+     *     }
+     * 
+     *     public function install() {
+     * 
+     *     }
+     * 
+     *     public function enable() {
+     *         $this->enableRestService(true);
+     *         $this->flushCache();
+     *     }
+     * 
+     *     public function disable() {
+     * 
+     *     }
+     * 
+     * }
+     * 
+     * $oPluginRegistry = &PMPluginRegistry::getSingleton();
+     * $oPluginRegistry->registerPlugin("ejemplo3", __FILE__);
+     * 
+     * @param string $workspaceName
+     * @throws Exception
+     */
+    public function flushCache($workspaceName = "")
+    {
+        try {
+            $workspaces = System::listWorkspaces();
+            if (!empty($workspaceName)) {
+                $itWasFound = false;
+                foreach ($workspaces as $workspace) {
+                    if ($workspace->name === $workspaceName) {
+                        $itWasFound = true;
+                        $workspaces = [$workspace];
+                        break;
+                    }
+                }
+                if ($itWasFound === false) {
+                    $workspaces = [];
+                    throw new Exception('Error: The workspace "' . $workspaceName . '" does not exist');
+                }
+            }
+            foreach ($workspaces as $workspace) {
+                $path = $workspace->path . "/cache";
+                if (file_exists($path)) {
+                    G::rm_dir($path);
+                }
+                G::mk_dir($path, 0777);
+                $path = $workspace->path . "/cachefiles";
+                if (file_exists($path)) {
+                    G::rm_dir($path);
+                }
+                G::mk_dir($path, 0777);
+                $path = $workspace->path . "/routes.php";
+                if (file_exists($path)) {
+                    unlink($path);
+                }
+            }
+        } catch (Exception $exception) {
+            $sysSys = (defined("SYS_SYS")) ? SYS_SYS : "Undefined";
+            $context = \Bootstrap::getDefaultContextLog();
+            $context["exception"] = (array) $exception;
+            \Bootstrap::initVendors();
+            \Bootstrap::LoadSystem('monologProvider');
+            \Bootstrap::registerMonolog("flush-cache", 400, "flush-cache", $context, $sysSys, "processmaker.log");
+        }
+    }
 
 }