SwitchBoardDependencyMetaData.java

/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2009, 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.switchboard.mc.dependency;

import java.util.Map;

import org.jboss.beans.metadata.plugins.AbstractDependencyMetaData;
import org.jboss.beans.metadata.spi.MetaDataVisitor;
import org.jboss.dependency.spi.ControllerState;
import org.jboss.dependency.spi.DependencyItem;
import org.jboss.kernel.spi.dependency.KernelControllerContext;
import org.jboss.switchboard.impl.resource.JNDIDependency;
import org.jboss.switchboard.mc.SwitchBoardImpl;
import org.jboss.switchboard.spi.Resource;

/**
 * SwitchBoardDependency
 *
 * @author Jaikiran Pai
 * @version $Revision: $
 */
public class SwitchBoardDependencyMetaData extends AbstractDependencyMetaData
{

   /**
    * 
    */
   private static final long serialVersionUID = 1L;

   private boolean isJNDIDependency;
   
   private JNDIDependency jndiDependency;
   
   private SwitchBoardImpl switchBoard;
   
   private ControllerState whenRequired;
   
   private ControllerState dependentState;
   
   public SwitchBoardDependencyMetaData(SwitchBoardImpl switchBoard, Object dependency, ControllerState whenRequired, ControllerState dependentState)
   {
      super(dependency);
      this.switchBoard = switchBoard;
      this.whenRequired = whenRequired;
      this.dependentState = dependentState;
      
      if (dependency instanceof JNDIDependency)
      {
         this.isJNDIDependency = true;
         this.jndiDependency = (JNDIDependency) dependency;
      }
   }
   
   @Override
   public void initialVisit(MetaDataVisitor visitor)
   {
      if (this.isJNDIDependency)
      {
         String jndiName = this.jndiDependency.getJNDIName();
         DependencyItem jndiDependencyItem = new JNDIDependencyItem(switchBoard, jndiName, this.whenRequired, this.dependentState, this.isResponsibleForBinding(jndiName));

         visitor.addDependency(jndiDependencyItem);
         visitor.initialVisit(this);
      }
      else
      {
         KernelControllerContext context = visitor.getControllerContext();
         DependencyItem item = new NameBasedDependencyItem(context.getName(), this.dependency, this.whenRequired, this.dependentState);

         visitor.addDependency(item);
         visitor.initialVisit(this);
      }
   }
   
   private boolean isResponsibleForBinding(String jndiName)
   {
      Map<String, Resource> bindings = this.switchBoard.getBindings();
      if (bindings.containsKey(jndiName))
      {
         return true;
      }
      if (jndiName.startsWith("java:comp/"))
      {
         String jndiNameWithoutNamespace = jndiName.substring("java:comp/".length());
         return bindings.containsKey(jndiNameWithoutNamespace);
      }
      return false;
   }
}