/*

  * Copyright 2011 The Kuali Foundation Licensed under the Educational Community

  * License, Version 1.0 (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.kns.uif.util;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.kns.service.DataDictionaryService;

 import org.kuali.rice.kns.service.KNSServiceLocatorWeb;

 import org.kuali.rice.kns.uif.control.RadioGroupControl;

 import org.kuali.rice.kns.uif.control.TextControl;

 import org.kuali.rice.kns.uif.core.Component;

 import org.kuali.rice.kns.uif.field.MessageField;

 import org.kuali.rice.kns.web.spring.form.UifFormBase;

 import java.util.HashMap;

 import java.util.Map;

 /**

  * Factory class for creating new UIF components from their base definitions

  * in the dictionary

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 public class ComponentFactory {

     private static final Map<String, Component> componentDefinitions = new HashMap<String, Component>();

     protected static final String MESSAGE_FIELD = "MessageField";

     protected static final String TEXT_CONTROL = "TextControl";

     protected static final String RADIO_GROUP_CONTROL = "RadioGroupControl";

     /**

      * Adds a component instance to the factories map of components indexed by the given dictionary id

      *

      * @param componentDictionaryId - id to index component under

      * @param component - component instance to add

      */

     public static void addComponentDefinition(String componentDictionaryId, Component component) {

         componentDefinitions.put(componentDictionaryId, ComponentUtils.copyObject(component));

     }

     /**

      * Returns a new <code>Component</code> instance from the given component id initialized by the

      * corresponding dictionary configuration

      *

      * @param componentDictionaryId - id for the component to retrieve, note this is the id initially

      * assigned and could be the spring generated id (if a static id was not set)

      * @return new component instance or null if no such component definition was found

      */

     public static Component getNewComponentInstance(String componentDictionaryId) {

         if (componentDefinitions.containsKey(componentDictionaryId)) {

             Component component = componentDefinitions.get(componentDictionaryId);

             return ComponentUtils.copyObject(component);

         }

         return null;

     }

     public static MessageField getMessageField() {

         return (MessageField) getNewComponentInstance(MESSAGE_FIELD);

     }

     public static TextControl getTextControl() {

         return (TextControl) getNewComponentInstance(TEXT_CONTROL);

     }

     public static RadioGroupControl getRadioGroupControl() {

         return (RadioGroupControl) getNewComponentInstance(RADIO_GROUP_CONTROL);

     }

     /**

      * Gets a fresh copy of the component by the id passed in with its lifecycle performed upon it,

      * using the form data passed in.

      *

      * @param form

      * @param id

      * @return

      */

     public static Component getComponentById(UifFormBase form, String id) {

         String origId = id;

         if (id.contains("_")) {

             id = StringUtils.substringBefore(id, "_");

         }

         Component component = getNewComponentInstance(id);

         form.getView().getViewHelperService().performComponentLifecycle(form, component, origId);

         form.getView().getViewIndex().indexComponent(component);

         return component;

     }

     protected static DataDictionaryService getDataDictionaryService() {

         return KNSServiceLocatorWeb.getDataDictionaryService();

     }

 }