]> git.mxchange.org Git - hub.git/blobdiff - application/hub/main/lists/class_BaseList.php
Fixed a typo, added an assert()
[hub.git] / application / hub / main / lists / class_BaseList.php
index c81063933225d54c66bcce029fff4aa6e07c39f4..5efe2baab27680566c38980eb4e7225aa675e9a0 100644 (file)
@@ -4,7 +4,7 @@
  *
  * @author             Roland Haeder <webmaster@ship-simu.org>
  * @version            0.0.0
- * @copyright  Copyright (c) 2007, 2008 Roland Haeder, 2009 Hub Developer Team
+ * @copyright  Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2011 Hub Developer Team
  * @license            GNU GPL 3.0 or any newer version
  * @link               http://www.ship-simu.org
  *
  * 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 BaseList extends BaseHubSystem implements IteratorAggregate {
+class BaseList extends BaseHubSystem implements IteratorAggregate, Countable {
        // Exception constants
        const EXCEPTION_GROUP_ALREADY_ADDED = 0xf20;
        const EXCEPTION_GROUP_NOT_FOUND     = 0xf21;
+       const EXCEPTION_INVALID_HASH        = 0xf22;
 
        /**
         * List groups array
@@ -50,10 +51,6 @@ class BaseList extends BaseHubSystem implements IteratorAggregate {
        protected function __construct ($className) {
                // Call parent constructor
                parent::__construct($className);
-
-               // Remove some attributes
-               $this->removeNumberFormaters();
-               $this->removeSystemArray();
        }
 
        /**
@@ -63,17 +60,17 @@ class BaseList extends BaseHubSystem implements IteratorAggregate {
         */
        public function getIterator () {
                // Prepare a default iterator
-               $iteratorInstance = ObjectFactory::createObjectByConfiguredName('default_iterator_class');
+               $iteratorInstance = ObjectFactory::createObjectByConfiguredName('default_iterator_class', array($this));
 
                // And return it
                return $iteratorInstance;
        }
 
        /**
-        * Checks wether the given group is set
+        * Checks whether the given group is set
         *
         * @param       $groupName      Group to check if found in list
-        * @return      $isset          Wether the group is valid
+        * @return      $isset          Whether the group is valid
         */
        public function isGroupSet ($groupName) {
                //* DEBUG: */ $this->debugOutput(__METHOD__.': '.$groupName);
@@ -134,7 +131,45 @@ class BaseList extends BaseHubSystem implements IteratorAggregate {
 
                // Add the instance itself to the list
                $this->listEntries[$hash] = $instance;
-               //* DEBUG: */ $this->debugOutput(__METHOD__.': '.$groupName  . '/' . $subGroup . ' - START');
+               //* DEBUG: */ $this->debugOutput(__METHOD__.': '.$groupName  . '/' . $subGroup . ' - FINISHED');
+       }
+
+       /**
+        * Gets an array from given list
+        *
+        * @param       $list   The requested list
+        * @return      $array  The requested array
+        * @throws      NoListGroupException    If the given group is not found
+        */
+       public final function getArrayFromList ($list) {
+               // Is the group there?
+               if ((!is_null($list)) && (!$this->isGroupSet($list))) {
+                       // Throw the exception here
+                       throw new NoListGroupException(array($this, $list), self::EXCEPTION_GROUP_NOT_FOUND);
+               } // END - if
+
+               // Init array
+               $array = array();
+
+               // Is there another list?
+               if (!is_null($list)) {
+                       // Then get it as well
+                       $array = $this->listGroups[$list]->getArrayFromList(NULL);
+               } // END - if
+
+               // Walk through all entries
+               foreach ($this->listIndex as $hash) {
+                       //* DEBUG: */ print __METHOD__.':hash='.$hash.chr(10);
+                       // Is the list entry set?
+                       if ($this->isHashValid($hash)) {
+                               // Add it
+                               $array[] = $this->listEntries[$hash];
+                               //* DEBUG: */ print __METHOD__.": ADDED!\n";
+                       } // END - if
+               } // END - foreach
+
+               // Return it
+               return $array;
        }
 
        /**
@@ -146,7 +181,7 @@ class BaseList extends BaseHubSystem implements IteratorAggregate {
         * @throws      NoListGroupException    If the given group is not found
         */
        public function addEntry ($groupName, $entry) {
-               //* DEBUG: */ $this->debugOutput(__METHOD__.': '.$groupName . ' - START');
+               //* DEBUG: */ $this->debugOutput(__METHOD__.'('.$this->__toString().'): '.$groupName . ' - START');
                // Is the group already added?
                if (!$this->isGroupSet($groupName)) {
                        // Throw the exception here
@@ -155,13 +190,44 @@ class BaseList extends BaseHubSystem implements IteratorAggregate {
 
                // Generate hash
                $hash = $this->generateHash($groupName, $groupName, $entry);
+               //* DEBUG: */ $this->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ']:  groupName=' . $groupName . ', entry=' . $entry . ', hash=' . $hash);
 
                // Add the hash to the index
                $this->listIndex[] = $hash;
+               //* DEBUG: */ print $groupName.'/'.count($this->listIndex).chr(10);
 
                // Now add the entry to the list
                $this->listEntries[$hash] = $entry;
-               //* DEBUG: */ $this->debugOutput(__METHOD__.': '.$groupName . ' - FINISHED');
+               //* DEBUG: */ print $groupName.'/'.count($this->listEntries).chr(10);
+               //* DEBUG: */ $this->debugOutput(__METHOD__.'('.$this->__toString().'): '.$groupName . ' - FINISHED');
+       }
+
+       /**
+        * Removes given entry from the list group
+        *
+        * @param       $groupName      Group where we should remove the entry from
+        * @param       $entry          The entry we should remove
+        * @return      void
+        * @throws      NoListGroupException    If the given group is not found
+        */
+       public function removeEntry ($groupName, $entry) {
+               //* DEBUG: */ $this->debugOutput(__METHOD__.'('.$this->__toString().'): '.$groupName . ' - START');
+               // Is the group already added?
+               if (!$this->isGroupSet($groupName)) {
+                       // Throw the exception here
+                       throw new NoListGroupException(array($this, $groupName), self::EXCEPTION_GROUP_NOT_FOUND);
+               } // END - if
+
+               // Generate hash
+               $hash = $this->generateHash($groupName, $groupName, $entry);
+               //* DEBUG: */ $this->debugOutput('[' . __METHOD__ . ':' . __LINE__ . ']:  groupName=' . $groupName . ', entry=' . $entry . ', hash=' . $hash);
+
+               // Remove it from the list ...
+               unset($this->listEntries[$hash]);
+
+               // ... and hash list as well
+               unset($this->listIndex[array_search($hash, $this->listIndex)]);
+               //* DEBUG: */ $this->debugOutput(__METHOD__.'('.$this->__toString().'): '.$groupName . ' - FINISHED');
        }
 
        /**
@@ -182,12 +248,18 @@ class BaseList extends BaseHubSystem implements IteratorAggregate {
                } elseif ($entry instanceof FrameworkInterface) {
                        // Own instance detected
                        $entry2 = $entry->hashCode();
-               } elseif (!is_array($entry)) {
-                       // Non-array found, use it directly with type
-                       $entry2 = gettype($entry) . ':' . $entry2;
+               } elseif ((is_int($entry)) || (is_float($entry)) || (is_resource($entry))) {
+                       // Integer/float/resource detected
+                       $entry2 = gettype($entry) . ':' . $entry;
+               } elseif (is_string($entry)) {
+                       // String found
+                       $entry2 = crc32($entry) . ':' . strlen($entry);
+               } elseif ((is_array($entry)) && (isset($entry['id']))) {
+                       // Supported array found
+                       $entry2 = crc32($entry['id']) . ':' . count($entry);
                } else {
-                       // Arrays are unsupported at the momement
-                       $this->debugOutut(__METHOD__ . ': entry is an array. UNSUPPORTED!');
+                       // Unsupported type detected
+                       $this->debugOutut('[' . __METHOD__ . ':' . __LINE__ . ']:  entry type ' . gettype($entry) . ' is unsupported.');
 
                        // @TODO Extend this somehow?
                        $entry2 = gettype($entry);
@@ -202,6 +274,160 @@ class BaseList extends BaseHubSystem implements IteratorAggregate {
                // And return it
                return $hash;
        }
+
+       /**
+        * Clears an array of groups, all are being checked for existence
+        *
+        * @param       $groupNames             An array with existing list groups
+        * @return      void
+        */
+       protected function clearGroups (array $groupNames) {
+               // Walk through all groups
+               foreach ($groupNames as $groupName) {
+                       // Clear this group
+                       $this->clearGroup($groupName);
+               } // END - foreach
+       }
+
+       /**
+        * Clears a single group by resetting it to its initial state (empty array)
+        *
+        * @param       $groupName      Name of an existing group to clear
+        * @return      void
+        */
+       protected function clearGroup ($groupName) {
+               // Does this group exist?
+               if (!$this->isGroupSet($groupName)) {
+                       // Throw the exception here
+                       throw new NoListGroupException(array($this, $groupName), self::EXCEPTION_GROUP_NOT_FOUND);
+               } // END - if
+
+               // Then clear this group list
+               $this->listGroups[$groupName]->clearList();
+
+               // Clear this list
+               $this->listIndex = array();
+               $this->listEntries = array();
+       }
+       
+       /**
+        * Counts all entries in this list
+        *
+        * @return      $count  All entries in this list
+        */
+       public final function count () {
+               return count($this->listIndex);
+       }
+
+       /**
+        * Checks whether the given hash is valid
+        *
+        * @param       $hash           The hash we should validate
+        * @return      $isValid        Whether the given hash is valid
+        */
+       public final function isHashValid ($hash) {
+               // Check it
+               $isValid = ((in_array($hash, $this->listIndex)) && (isset($this->listEntries[$hash])));
+
+               // Return the result
+               return $isValid;
+       }
+
+       /**
+        * Getter for hash from given hash index
+        *
+        * @param       $hashIndex      Index holding the hash
+        * @return      $hash           The hash
+        */
+       public final function getHash ($hashIndex) {
+               // Get it ...
+               $hash = $this->listIndex[$hashIndex];
+
+               // ... and return it
+               return $hash;
+       }
+
+       /**
+        * Gets an entry from given hash index
+        *
+        * @param       $hashIndex      The hash index to resolve the mapped entry
+        * @return      $entry          Solved entry from list
+        * @throws      InvalidListHashException        If the solved hash index is invalid
+        */
+       public function getEntry ($hashIndex) {
+               // Get the hash value
+               $hash = $this->getHash($hashIndex);
+
+               // Is the hash valid?
+               if (!$this->isHashValid($hash)) {
+                       // Throw an exception here
+                       throw new InvalidListHashException(array($this, $hash, $hashIndex), self::EXCEPTION_INVALID_HASH);
+               } // END - if
+
+               // Now copy the entry
+               $entry = $this->listEntries[$hash];
+
+               // Return it
+               return $entry;
+       }
+
+       /**
+        * Gets a full array from given group name
+        *
+        * @param       $groupName      The group name to get a list for
+        * @return      $entries        The array with all entries
+        * @throws      NoListGroupException    If the specified group is invalid
+        */
+       public function getArrayFromGroup ($groupName) {
+               // Is the group valid?
+               if (!$this->isGroupSet($groupName)) {
+                       // Throw the exception here
+                       throw new NoListGroupException(array($this, $groupName), self::EXCEPTION_GROUP_NOT_FOUND);
+               } // END - if
+
+               // Init the entries' array
+               $entries = array();
+
+               // Get an iterator
+               $iteratorInstance = $this->listGroups[$groupName]->getIterator();
+
+               // Go through all entries
+               while ($iteratorInstance->valid()) {
+                       // Get key
+                       $entryIndex = $iteratorInstance->key();
+
+                       // ... and the final entry which is the stored instance
+                       $entry = $this->getEntry($entryIndex);
+
+                       // Add it to the list
+                       $entries[$iteratorInstance->current()] = $entry;
+
+                       // Skip to next one
+                       $iteratorInstance->next();
+               } // END - while
+
+               // Return the list
+               return $entries;
+       }
+
+       /**
+        * Updates the given entry by hash with given array
+        *
+        * @param       $hash           Hash for this entry
+        * @param       $entryArray     Array with entry we should update
+        * @return      void
+        * @throws      InvalidListHashException        If the solved hash index is invalid
+        */
+       public function updateCurrentEntryByHash ($hash, array $entryArray) {
+               // Is the hash valid?
+               if (!$this->isHashValid($hash)) {
+                       // Throw an exception here, hashIndex is unknown at this point
+                       throw new InvalidListHashException(array($this, $hash, -999), self::EXCEPTION_INVALID_HASH);
+               } // END - if
+
+               // Set the entry
+               $this->listEntries[$hash] = $entryArray;
+       }
 }
 
 //