/*
    * 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.
   */
  package org.apache.myfaces.view.facelets.tag.jsf.core;
  
  import javax.faces.validator.Validator;
  import javax.faces.view.facelets.FaceletContext;
  import javax.faces.view.facelets.MetaRuleset;
  import javax.faces.view.facelets.TagAttribute;
  import javax.faces.view.facelets.ValidatorConfig;
  import javax.faces.view.facelets.ValidatorHandler;
  
  import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFFaceletAttribute;
  import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFFaceletTag;
  
  
  /**
   * Register a named Validator instance on the UIComponent associated with the closest parent UIComponent custom
   * action.<p/> See <a target="_new"
   * href="http://java.sun.com/j2ee/javaserverfaces/1.1_01/docs/tlddocs/f/validator.html">tag documentation</a>.
   * 
   * @author Jacob Hookom
   * @version $Id$
   */
  @JSFFaceletTag(
          name = "f:validator",
          bodyContent = "empty", 
          tagClass="org.apache.myfaces.taglib.core.ValidatorImplTag")
  @JSFFaceletAttribute(name="disabled", deferredValueType="java.lang.Boolean", 
          desc="no description", longDescription="no description")
  public final class ValidateDelegateHandler extends ValidatorHandler
  {
  
      private final TagAttribute validatorId;
  
      public ValidateDelegateHandler(ValidatorConfig config)
      {
          super(config);
          this.validatorId = this.getAttribute("validatorId");
      }
  
      /**
       * Uses the specified "validatorId" to get a new Validator instance from the Application.
       * 
       * @see javax.faces.application.Application#createValidator(java.lang.String)
       * @see javax.faces.view.facelets.ValidatorHandler#createValidator(javax.faces.view.facelets.FaceletContext)
       */
      protected Validator createValidator(FaceletContext ctx)
      {
          return ctx.getFacesContext().getApplication().createValidator(this.getValidatorId(ctx));
      }
  
      protected MetaRuleset createMetaRuleset(Class type)
      {
          return super.createMetaRuleset(type).ignoreAll();
      }
  
      @Override
      public String getValidatorId(FaceletContext ctx)
      {
          if (validatorId == null)
          {
              return null;
          }
          return validatorId.getValue(ctx);
      }
  
  }