/*
    * Copyright 2011 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.opensource.org/licenses/ecl1.php
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.kuali.rice.kim.api.jaxb;
  
  import javax.xml.bind.MarshalException;
  import javax.xml.bind.UnmarshalException;
  import javax.xml.bind.annotation.adapters.NormalizedStringAdapter;
  import javax.xml.bind.annotation.adapters.XmlAdapter;
  
  import org.kuali.rice.core.util.jaxb.NameAndNamespacePair;
  import org.kuali.rice.kim.api.common.template.Template;
  import org.kuali.rice.kim.api.services.KimApiServiceLocator;
  
  /**
   * An XML adapter that converts between a NameAndNamespacePair and a permission template ID.
   * 
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public class NameAndNamespacePairToPermTemplateIdAdapter extends XmlAdapter<NameAndNamespacePair,String> {
  
      /**
       * @see javax.xml.bind.annotation.adapters.XmlAdapter#unmarshal(java.lang.Object)
       */
      @Override
      public String unmarshal(NameAndNamespacePair v) throws Exception {
          if (v != null) {
              Template permissionTemplate = KimApiServiceLocator.getPermissionService().findPermTemplateByNamespaceCodeAndName(
                      v.getNamespaceCode(), new NormalizedStringAdapter().unmarshal(v.getName()));
              if (permissionTemplate == null) {
                  throw new UnmarshalException("Cannot find permission template with namespace \"" + v.getNamespaceCode() + "\" and name \"" + v.getName() + "\"");
              }
              return permissionTemplate.getId();
          }
          return null;
      }
  
      /**
       * @see javax.xml.bind.annotation.adapters.XmlAdapter#marshal(java.lang.Object)
       */
      @Override
      public NameAndNamespacePair marshal(String v) throws Exception {
          if (v != null) {
              Template permissionTemplate = KimApiServiceLocator.getPermissionService().getPermissionTemplate(v);
              if (permissionTemplate == null) {
                  throw new MarshalException("Cannot find permission template with ID \"" + v + "\"");
              }
              return new NameAndNamespacePair(permissionTemplate.getNamespaceCode(), permissionTemplate.getName());
          }
          return null;
      }
  
  }