/*

  * Copyright 2004-2008 the Seasar Foundation and the Others.

  *

  * Licensed 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.

  */

 package org.seasar.uruma.binding.value.command;

 import java.lang.reflect.Field;

 import java.util.List;

 import org.seasar.framework.beans.PropertyDesc;

 import org.seasar.framework.util.StringUtil;

 import org.seasar.uruma.annotation.ExportValue;

 import org.seasar.uruma.annotation.ImportExportValue;

 import org.seasar.uruma.binding.value.BindingCommand;

 import org.seasar.uruma.binding.value.ValueBinder;

 import org.seasar.uruma.component.UIComponent;

 import org.seasar.uruma.desc.FormDesc;

 /**

  * {@link ExportValue} アノテーションに対応した処理を行うための、{@link BindingCommand} です。<br />

  * 

  * @author y-komori

  */

 public class ExportValueCommand extends AbstractBindingCommand<ExportValue> {

     /*

      * @see org.seasar.uruma.binding.value.BindingCommand#getTargetPropertyDescs(org.seasar.uruma.desc.FormDesc)

      */

     public List<PropertyDesc> getTargetPropertyDescs(final FormDesc desc) {

         return desc.getExportValueProperties();

     }

     /*

      * @see org.seasar.uruma.binding.value.command.AbstractBindingCommand#doBind(org.seasar.uruma.binding.value.ValueBinder,

      *      java.lang.Object, java.lang.Object,

      *      org.seasar.framework.beans.PropertyDesc)

      */

     @Override

     protected void doBind(final ValueBinder binder, final Object widget,

             final Object formObj, final PropertyDesc propDesc,

             final UIComponent uiComp) {

         binder.exportValue(widget, formObj, propDesc, uiComp);

     }

     /*

      * @see org.seasar.uruma.binding.value.command.AbstractBindingCommand#getId(java.lang.reflect.Field)

      */

     @Override

     public String getId(final Field field) {

         ExportValue exportValue = field.getAnnotation(ExportValue.class);

         if (exportValue != null) {

             String id = exportValue.id();

             return StringUtil.isEmpty(id) ? field.getName() : id;

         }

         ImportExportValue importExportValue = field

                 .getAnnotation(ImportExportValue.class);

         if (importExportValue != null) {

             String id = importExportValue.id();

             return StringUtil.isEmpty(id) ? field.getName() : id;

         }

         return field.getName();

     }

     /*

      * @see org.seasar.uruma.binding.value.command.AbstractBindingCommand#getAnnotation(Field)

      */

     @Override

     protected ExportValue getAnnotation(final Field field) {

         return field.getAnnotation(ExportValue.class);

     }

     /*

      * @see org.seasar.uruma.binding.value.command.AbstractBindingCommand#getId(ANNOTATION_CLASS)

      */

     @Override

     protected String getId(final ExportValue annotation) {

         return annotation.id();

     }

 }