package org.jscsi.target.connection.stage.fullfeature;
   
   
   import java.io.IOException;
   import java.security.DigestException;
   
   import org.jscsi.exception.InternetSCSIException;
   import org.jscsi.parser.BasicHeaderSegment;
   import org.jscsi.parser.ProtocolDataUnit;
  import org.jscsi.parser.logout.LogoutResponse;
  import org.jscsi.target.connection.TargetPduFactory;
  import org.jscsi.target.connection.phase.TargetFullFeaturePhase;
  import org.jscsi.target.settings.SettingsException;
  
  
  /**
   * A stage for processing logout requests.
   * <p>
   * Since <code>MaxConnections</code> is currently limited to <code>1</code>, all logout requests will be treated as
   * requests to close the session.
   * 
   * @author Andreas Ergenzinger
   */
  public final class LogoutStage extends TargetFullFeatureStage {
  
      public LogoutStage (TargetFullFeaturePhase targetFullFeaturePhase) {
          super(targetFullFeaturePhase);
      }
  
      @Override
      public void execute (ProtocolDataUnit pdu) throws IOException , InterruptedException , InternetSCSIException , DigestException , SettingsException {
  
          final BasicHeaderSegment bhs = pdu.getBasicHeaderSegment();
          final int initiatorTaskTag = bhs.getInitiatorTaskTag();
  
          final ProtocolDataUnit responsePDU = TargetPduFactory.createLogoutResponsePdu(LogoutResponse.CONNECTION_CLOSED_SUCCESSFULLY, initiatorTaskTag, (short) settings.getDefaultTime2Wait(),// time2Wait
                  (short) settings.getDefaultTime2Retain());// time2Retain
  
          connection.sendPdu(responsePDU);
      }
  
  }