package org.apache.fulcrum.intake.model;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you under the Apache 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.apache.org/licenses/LICENSE-2.0

  *

  * 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.

  */

 import javax.xml.bind.annotation.adapters.XmlAdapter;

 import org.apache.fulcrum.intake.IntakeException;

 /**

  * Creates Field objects.

  *

  * @author <a href="mailto:tv@apache.org">Thomas Vandahl</a>

  * @version $Id: FieldFactory.java 1200653 2011-11-11 00:05:28Z tv $

  */

 public class FieldAdapter extends XmlAdapter<XmlField, Field<?>>

 {

     /**

      * Creates a Field object appropriate for the type specified

      * in the xml file.

      *

      * @see javax.xml.bind.annotation.adapters.XmlAdapter#unmarshal(java.lang.Object)

      */

     @Override

     public Field<?> unmarshal(XmlField xmlField) throws Exception

     {

         Field<?> field = null;

         FieldType type = xmlField.getType();

         if (type == null)

         {

             throw new IntakeException("An unsupported type has been specified for " +

                     xmlField.getName() + " in group " + xmlField.getGroup().getIntakeGroupName());

         }

         else

         {

             field = type.getInstance(xmlField, xmlField.getGroup());

         }

         return field;

     }

     /**

      * @see javax.xml.bind.annotation.adapters.XmlAdapter#marshal(java.lang.Object)

      */

     @Override

     public XmlField marshal(Field<?> field) throws Exception

     {

         // This is never used in this context

         return new XmlField();

     }

 }