/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.deployment.spi.beans;

import javax.enterprise.deploy.model.DDBean;
import javax.enterprise.deploy.model.DDBeanRoot;
import javax.enterprise.deploy.model.DeployableObject;
import javax.enterprise.deploy.spi.DConfigBean;
import javax.enterprise.deploy.spi.DConfigBeanRoot;
import javax.enterprise.deploy.spi.exceptions.ConfigurationException;

/**
 * This class is an example of how to build config beans based on a number of
 * required xpaths for a deployment descriptor.
 *
 * The required xpaths for this example class are: root-element/sub-element[@id]
 * root-element/sub-element/name root-element/sub-element/class
 *
 * root-element/other-sub/name root-element/other-sub/description
 *
 * This example class will return the xpaths as ONE list. Any attempt to get a
 * child bean will return a null-bean, as the children beans will not require
 * additional xpaths.
 * @author Rob Stryker
 * @version $Revision: 57190 $
 *
 *          TODO To change the template for this generated type comment go to
 *          Window - Preferences - Java - Code Style - Code Templates
 */

public class JBossExample2ConfigBeanRoot extends JBossConfigBeanProxy implements DConfigBeanRoot
{

   public JBossExample2ConfigBeanRoot(DDBeanRoot root)
   {
      JBossExample2MainConfigBean bean = new JBossExample2MainConfigBean(root, this, null);
      DeployableObject deployment = root.getDeployableObject();
      setBean(bean, deployment);
   }

   public DConfigBean getDConfigBean(DDBeanRoot arg0)
   {
      /*
       * Get the filename for this bean root and send along 
       * a configbean for that type.
       * 
       * This example assumes only one jboss-specific descriptor, 
       * so this method returns null.
       */
      return null;
   }

   private class JBossExample2MainConfigBean extends AbstractJBossConfigBean
   {
      public JBossExample2MainConfigBean(DDBean bean, DConfigBeanRoot root, ConfigBeanXPaths path)
      {
         super(bean, root, path);
      }

      /**
       * In this example, every required xpath will be returned in ONE list.
       *
       * The required xpaths for this example class are: root-element/sub-element[@id]
       * root-element/sub-element/name root-element/sub-element/class
       *
       * root-element/other-sub/name root-element/other-sub/description
       */
      protected ConfigBeanXPaths buildXPathList()
      {
         ConfigBeanXPaths pathRoot = new ConfigBeanXPaths("", null);

         //ConfigBeanXPaths contextRoot = 
         new ConfigBeanXPaths("root-element/sub-element", pathRoot);
         new ConfigBeanXPaths("root-element/other-sub", pathRoot);
         return pathRoot;
      }

      /**
       * Overloading the super-implementation so that we can return subtypes,
       * such as JBossExample2SubElementConfigBean or JBossExample2OtherSubConfigBean
       */
      public DConfigBean getDConfigBean(DDBean bean) throws ConfigurationException
      {
         // get a child bean
         String path = bean.getXpath();
         ConfigBeanXPaths cPath = (ConfigBeanXPaths)xpaths.get(path);
         if (cPath == null)
         {
            throw new ConfigurationException("Config Bean Not Found");
         }

         AbstractJBossConfigBean retBean;
         if (bean.getXpath().equals("root-element/sub-element"))
         {
            retBean = new JBossExample2SubElementConfigBean(bean, this.myRoot, cPath);
         }
         else if (bean.getXpath().equals("root-element/other-sub"))
         {
            retBean = new JBossExample2OtherSubConfigBean(bean, this.myRoot, cPath);
         }
         else
         {
            retBean = new JBossNullConfigBean(bean, this.myRoot, cPath);
         }

         children.add(retBean);
         return retBean;
      }
   }

   public class JBossExample2SubElementConfigBean extends AbstractJBossConfigBean
   {
      public JBossExample2SubElementConfigBean(DDBean bean, DConfigBeanRoot root, ConfigBeanXPaths path)
      {
         super(bean, root, path);
      }

      /**
       * The required xpaths for this example class are: root-element/sub-element[@id]
       * root-element/sub-element/name root-element/sub-element/class
       *
       * However this class is a sub-element type, so we only need
       * @id name class
       */

      protected ConfigBeanXPaths buildXPathList()
      {
         ConfigBeanXPaths pathRoot = new ConfigBeanXPaths("", null);
         new ConfigBeanXPaths("@id", pathRoot);
         new ConfigBeanXPaths("name", pathRoot);
         new ConfigBeanXPaths("class", pathRoot);
         return pathRoot;
      }

   }

   public class JBossExample2OtherSubConfigBean extends AbstractJBossConfigBean
   {
      public JBossExample2OtherSubConfigBean(DDBean bean, DConfigBeanRoot root, ConfigBeanXPaths path)
      {
         super(bean, root, path);
      }

      /**
       * The required xpaths for this example class are: root-element/other-sub/name
       * root-element/other-sub/description
       *
       * However this class is a sub-element type, so we only need name
       * description
       */
      protected ConfigBeanXPaths buildXPathList()
      {
         ConfigBeanXPaths pathRoot = new ConfigBeanXPaths("", null);
         new ConfigBeanXPaths("name", pathRoot);
         new ConfigBeanXPaths("description", pathRoot);
         return pathRoot;
      }
   }
}