/*
 * IronJacamar, a Java EE Connector Architecture implementation
 * Copyright 2010, Red Hat Inc, 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.jca.core.security.reauth.ra.cri;

import java.io.PrintWriter;
import java.util.Iterator;
import java.util.Set;

import javax.resource.ResourceException;
import javax.resource.spi.ConnectionManager;
import javax.resource.spi.ConnectionRequestInfo;
import javax.resource.spi.ManagedConnection;
import javax.resource.spi.ManagedConnectionFactory;
import javax.resource.spi.ResourceAdapter;
import javax.resource.spi.ResourceAdapterAssociation;
import javax.security.auth.Subject;

import org.jboss.logging.Logger;

/**
 * ReauthManagedConnectionFactory
 *
 * @version $Revision: $
 */
public class ReauthManagedConnectionFactory implements ManagedConnectionFactory, ResourceAdapterAssociation
{
   /** The serial version UID */
   private static final long serialVersionUID = 1L;

   /** The logger */
   private static Logger log = Logger.getLogger(ReauthManagedConnectionFactory.class);

   /** The resource adapter */
   private ResourceAdapter ra;

   /** The logwriter */
   private PrintWriter logwriter;

   /**
    * Default constructor
    */
   public ReauthManagedConnectionFactory()
   {
      this.ra = null;
      this.logwriter = null;
   }

   /**
    * Creates a Connection Factory instance. 
    *
    * @param cxManager ConnectionManager to be associated with created EIS connection factory instance
    * @return EIS-specific Connection Factory instance or javax.resource.cci.ConnectionFactory instance
    * @throws ResourceException Generic exception
    */
   public Object createConnectionFactory(ConnectionManager cxManager) throws ResourceException
   {
      if (ra == null)
         throw new IllegalStateException("RA is null");

      log.tracef("createConnectionFactory(%s)", cxManager);

      return new ReauthConnectionFactoryImpl(this, cxManager);
   }

   /**
    * Creates a Connection Factory instance. 
    *
    * @return EIS-specific Connection Factory instance or javax.resource.cci.ConnectionFactory instance
    * @throws ResourceException Generic exception
    */
   public Object createConnectionFactory() throws ResourceException
   {
      throw new ResourceException("Non-managed environment not supported");
   }

   /**
    * Creates a new physical connection to the underlying EIS resource manager.
    *
    * @param subject Caller's security information
    * @param cxRequestInfo Additional resource adapter specific connection request information
    * @return ManagedConnection instance 
    * @throws ResourceException generic exception
    */
   public ManagedConnection createManagedConnection(Subject subject,
                                                    ConnectionRequestInfo cxRequestInfo)
      throws ResourceException
   {
      if (ra == null)
         throw new IllegalStateException("RA is null");

      log.tracef("createManagedConnection(%s, %s)", subject, cxRequestInfo);

      return new ReauthManagedConnection(this);
   }

   /**
    * Returns a matched connection from the candidate set of connections. 
    *
    * @param connectionSet Candidate connection set
    * @param subject Caller's security information
    * @param cxRequestInfo Additional resource adapter specific connection request information
    * @return ManagedConnection if resource adapter finds an acceptable match otherwise null 
    * @throws ResourceException generic exception
    */
   public ManagedConnection matchManagedConnections(Set connectionSet,
                                                    Subject subject,
                                                    ConnectionRequestInfo cxRequestInfo)
      throws ResourceException
   {
      if (ra == null)
         throw new IllegalStateException("RA is null");

      log.tracef("matchManagedConnections(%s, %s, %s)", connectionSet, subject, cxRequestInfo);

      ManagedConnection result = null;

      Iterator it = connectionSet.iterator();
      while (result == null && it.hasNext())
      {
         ManagedConnection mc = (ManagedConnection)it.next();

         if (mc instanceof ReauthManagedConnection)
         {
            result = mc;
         }
      }

      return result;
   }

   /**
    * Get the log writer for this ManagedConnectionFactory instance.
    *
    * @return PrintWriter
    * @throws ResourceException generic exception
    */
   public PrintWriter getLogWriter() throws ResourceException
   {
      log.tracef("getLogWriter()");
      return logwriter;
   }

   /**
    * Set the log writer for this ManagedConnectionFactory instance.
    *
    * @param out PrintWriter - an out stream for error logging and tracing
    * @throws ResourceException generic exception
    */
   public void setLogWriter(PrintWriter out) throws ResourceException
   {
      log.tracef("setLogWriter(%s)", out);
      logwriter = out;
   }

   /**
    * Get the resource adapter
    *
    * @return The handle
    */
   public ResourceAdapter getResourceAdapter()
   {
      log.tracef("getResourceAdapter()");
      return ra;
   }

   /**
    * Set the resource adapter
    *
    * @param ra The handle
    */
   public void setResourceAdapter(ResourceAdapter ra)
   {
      log.tracef("setResourceAdapter(%s)", ra);
      this.ra = ra;
   }

   /** 
    * Returns a hash code value for the object.
    * @return A hash code value for this object.
    */
   @Override
   public int hashCode()
   {
      return 17;
   }

   /** 
    * Indicates whether some other object is equal to this one.
    * @param other The reference object with which to compare.
    * @return true if this object is the same as the obj argument, false otherwise.
    */
   @Override
   public boolean equals(Object other)
   {
      if (other == null)
         return false;

      if (other == this)
         return true;

      if (!(other instanceof ReauthManagedConnectionFactory))
         return false;

      ReauthManagedConnectionFactory obj = (ReauthManagedConnectionFactory)other;

      return true;
   }
}
