package com.atlassian.plugin.spring.pluginns;
   
   import com.atlassian.plugin.spring.PluginBeanDefinitionRegistry;
   import org.springframework.beans.factory.config.BeanDefinitionHolder;
   import org.springframework.beans.factory.xml.BeanDefinitionDecorator;
   import org.springframework.beans.factory.xml.ParserContext;
   import org.w3c.dom.Node;
   
   /**
   * Matches the <plugin:interface> element and registers it against the bean for later processing.
   */
  public class PluginInterfaceBeanDefinitionDecorator implements BeanDefinitionDecorator
  {
      /**
       * Called when the Spring parser encounters an "interface" element.
       * @param source The interface element
       * @param holder The containing bean definition
       * @param ctx The parser context
       * @return The containing bean definition
       */
      public BeanDefinitionHolder decorate(Node source, BeanDefinitionHolder holder, ParserContext ctx)
      {
          final String inf = source.getTextContent();
          if (inf != null)
          {
              new PluginBeanDefinitionRegistry(ctx.getRegistry()).addBeanInterface(holder.getBeanName(), inf.trim());
          }
          return holder;
      }
  }