/*
    * Copyright 2008 Web Cohesion
    *
    * 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
    *
    *   https://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.springframework.security.oauth.config;
  
  import org.springframework.beans.factory.support.BeanDefinitionBuilder;
  import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
  import org.springframework.beans.factory.xml.ParserContext;
  import org.springframework.security.oauth.provider.verifier.RandomValueVerifierServices;
  import org.springframework.util.StringUtils;
  import org.w3c.dom.Element;
  
  /**
   * @author Ryan Heaton
   */
  public class VerifierServiceBeanDefinitionParser extends AbstractSingleBeanDefinitionParser {
  
    @Override
    protected Class getBeanClass(Element element) {
      return RandomValueVerifierServices.class;
    }
  
    @Override
    protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
      String cleanup = element.getAttribute("verifierLengthBytes");
      if (StringUtils.hasText(cleanup)) {
        try {
          builder.addPropertyValue("verifierLengthBytes", Integer.parseInt(cleanup));
        }
        catch (NumberFormatException e) {
          parserContext.getReaderContext().error("Invalid value " + cleanup + " for attribute verifierLengthBytes.", element);
        }
      }
    }
  }