scriptactionfactoryproxy.java

来自「webwork source」· Java 代码 · 共 58 行

/*
 * WebWork, Web Application Framework
 *
 * Distributable under Apache license.
 * See terms of license at opensource.org
 */
package webwork.action.factory;

import webwork.action.Action;
import webwork.action.standard.Script;

/**
 * Obtains the Script action if the suffix is a supported scripting suffix.
 *
 * @author Rickard 謆erg ([e-mail])
 * @version $Revision: 1.9 $
 */
public class ScriptActionFactoryProxy
   extends ActionFactoryProxy
{
   // Attributes ----------------------------------------------------

   // Constructors --------------------------------------------------
   public ScriptActionFactoryProxy(ActionFactory aFactory)
   {
      super(aFactory);
   }

   // ActionFactory overrides ---------------------------------------
  /**
   * If the suffix of the action is a scripting extension, get the Script
   * action and then load the script.  Currently, <code>".js"</code>
   * is the only suffix supported.
   *
   * @param   aName
   * @return   the script action or an action corresponding to the given name
   * @exception   Exception
   */
   public Action getActionImpl(String aName)
     throws Exception
   {
      // Check for scripting extension
      if (aName.endsWith(".js"))
      {
         Script script = (Script)ActionFactory.getAction("Script");
         script.setScript(aName);

         if (script.getScriptURL() == null)
            throw new IllegalArgumentException("Script '"+aName+"' does not exist");

         return script;
      } else
      {
         return getNextFactory().getActionImpl(aName);
      }
   }
}