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);

     }

 }