MetadataTypeDescription.inc.php

<?php
import('lib.pkp.classes.filter.ClassTypeDescription');
 
define('ASSOC_TYPE_ANY', -1);
 
class MetadataTypeDescription extends ClassTypeDescription {
   var $_metadataSchemaPackageName;
 
   var $_metadataSchemaClassName;
 
   var $_assocType;
 
 
   function __construct($typeName) {
      parent::__construct($typeName);
   }
 
   //
   // Setters and Getters
   //
   function getNamespace() {
      return TYPE_DESCRIPTION_NAMESPACE_METADATA;
   }
 
   function getMetadataSchemaClass() {
      return $this->_metadataSchemaPackageName.'.'.$this->_metadataSchemaClassName;
   }
 
   function getAssocType() {
      return $this->_assocType;
   }
 
 
   //
   // Implement abstract template methods from TypeDescription
   //
   function parseTypeName($typeName) {
      // Configure the parent class type description
      // with the expected meta-data class.
      parent::parseTypeName('lib.pkp.classes.metadata.MetadataDescription');
 
      // Split the type name into class name and assoc type.
      $typeNameParts = explode('(', $typeName);
      if (!count($typeNameParts) == 2) return false;
 
      // The meta-data schema class must be
      // a fully qualified class name.
      $splitMetadataSchemaClass = $this->splitClassName($typeNameParts[0]);
      if ($splitMetadataSchemaClass === false) return false;
      list($this->_metadataSchemaPackageName, $this->_metadataSchemaClassName) = $splitMetadataSchemaClass;
 
      // Identify the assoc type.
      $assocTypeString = trim($typeNameParts[1], ')');
      if ($assocTypeString == '*') {
         $this->_assocType = ASSOC_TYPE_ANY;
      } else {
         // Make sure that the given assoc type exists.
         $assocTypeString = 'ASSOC_TYPE_'.$assocTypeString;
         if (!defined($assocTypeString)) return false;
         $this->_assocType = constant($assocTypeString);
      }
 
      return true;
   }
 
   function checkType(&$object) {
      // First of all check whether this is a
      // meta-data description at all.
      if (!parent::checkType($object)) return false;
 
      // Check the meta-data schema.
      $metadataSchema =& $object->getMetadataSchema();
      if (!is_a($metadataSchema, $this->_metadataSchemaClassName)) return false;
 
      // Check the assoc type
      if ($this->_assocType != ASSOC_TYPE_ANY) {
         if ($object->getAssocType() != $this->_assocType) return false;
      }
 
      return true;
   }
}