Filter for package tags added, handling of new messages basicly finished

[hub.git] / application / hub / main / factories / chain / class_PackageFilterChainFactory.php

diff --git a/application/hub/main/factories/chain/class_PackageFilterChainFactory.php b/application/hub/main/factories/chain/class_PackageFilterChainFactory.php
new file mode 100644 (file)
index 0000000..9ded481
--- /dev/null
+++ b/application/hub/main/factories/chain/class_PackageFilterChainFactory.php
@@ -0,0 +1,77 @@
+<?php
+/**
+ * A factory class for network packages
+ *
+ * @author             Roland Haeder <webmaster@ship-simu.org>
+ * @version            0.0.0
+ * @copyright  Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2012 Hub Developer Team
+ * @license            GNU GPL 3.0 or any newer version
+ * @link               http://www.ship-simu.org
+ *
+ * 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 3 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+class PackageFilterChainFactory extends ObjectFactory {
+       /**
+        * Protected constructor
+        *
+        * @return      void
+        */
+       protected function __construct () {
+               // Call parent constructor
+               parent::__construct(__CLASS__);
+       }
+
+       /**
+        * Returns a filter chain by given tags array.
+        *
+        * @param       $tags                   An array with tags from a package
+        * @return      $chainInstance  An instance of a filter chain class
+        */
+       public static final function createChainByTagsArray (array $tags) {
+               // Get a registry key from tags array, this does mostly call implode()
+               $registryKey = Registry::getRegistryKeyFromArray('package_filter_chain', $tags);
+
+               // Is the registry key there?
+               if (Registry::getRegistry()->instanceExists($registryKey)) {
+                       // Yes, then use that instance
+                       $chainInstance = Registry::getRegistry()->getInstance($registryKey);
+               } else {
+                       // Initialize a filter chain class
+                       $chainInstance = ObjectFactory::createObjectByConfiguredName('package_filter_chain_class');
+
+                       // "Walk" through all tags entries
+                       foreach ($tags as $tag) {
+                               /*
+                                * Now create a filter instance of this tag. This way all tags
+                                * got rudymentary verified, if an exception is coming here, it
+                                * simply means the tag is not valid. This however should be
+                                * handled some calls before this method is called.
+                                */
+                               $filterInstance = ObjectFactory::createObjectByConfiguredName('package_tag_' . $tag . '_filter');
+
+                               // Add this filter to the chain
+                               $chainInstance->addFilter($filterInstance);
+                       } // END - foreach
+
+                       // Add the finished chain to the registry
+                       Registry::getRegistry()->addInstance($registryKey, $chainInstance);
+               }
+
+               // Return the chain instance
+               return $chainInstance;
+       }
+}
+
+// [EOF]
+?>