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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2006, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt 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.jdiameter.api;

import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;

/**
 * This interface append to base interface specific methods for
 * creating and send diameter requests and responses
 * 
 * @version 1.5.1 Final
 * 
 * @author [email protected]
 * @author [email protected]
 * @author  Alexandre Mendonca 
 * @author  Bartosz Baranowski 
 */
public interface Session extends BaseSession, Wrapper  {  

  /**
   * Set session request listener
   * @param listener session request listener
   */
  void setRequestListener(NetworkReqListener listener);

  /**
   * Returns a new Request object with the specified command code, applicationId, realm
   * and predefined system avps.
   * @param commandCode code of message
   * @param appId applicationId of destination application
   * @param destRealm name of destination Realm
   * @return new message object
   */
  Request createRequest(int commandCode, ApplicationId appId, String destRealm);

  /**
   * Returns a new Request object with the specified command code, applicationId, realm, host
   * and predefined system avps.
   * @param commandCode code of message
   * @param appId applicationId of destination application
   * @param destRealm name of destination Realm
   * @param destHost name of destination Host
   * @return new Request object
   */
  Request createRequest(int commandCode, ApplicationId appId, String destRealm, String destHost);

  /**
   * Returns a new Request object base on previous request.(header is copied)
   * @param prevRequest previous request (header is copied)
   * @return new Request object
   */
  Request createRequest(Request prevRequest);

  /**
   * Sends and wait response message with default timeout
   * @param message request/answer diameter message
   * @param listener event listener
   * @throws org.jdiameter.api.InternalException The InternalException signals that internal error is occurred.
   * @throws org.jdiameter.api.IllegalDiameterStateException The IllegalStateException signals that session has incorrect state (invalid).
   * @throws org.jdiameter.api.RouteException The NoRouteException signals that no route exist for a given realm.
   * @throws org.jdiameter.api.OverloadException The OverloadException signals that destination host is overloaded.
   */
  void send(Message message, EventListener listener) throws InternalException, IllegalDiameterStateException, RouteException, OverloadException;

  /**
   * Sends and wait response message with defined timeout
   * @param message  request/answer diameter message
   * @param listener  event listener
   * @param timeOut value of timeout
   * @param timeUnit type of timeOut value
   * @throws org.jdiameter.api.InternalException  The InternalException signals that internal error is occurred.
   * @throws org.jdiameter.api.IllegalDiameterStateException The IllegalStateException signals that session has incorrect state (invalid).
   * @throws org.jdiameter.api.RouteException The NoRouteException signals that no route exist for a given realm.
   * @throws org.jdiameter.api.OverloadException The OverloadException signals that destination host is overloaded.
   */
  void send(Message message, EventListener listener, long timeOut, TimeUnit timeUnit) throws InternalException, IllegalDiameterStateException, RouteException, OverloadException;

  /**
   * Sends and wait response message with default timeout
   * @param message request/answer diameter message
   * @return InFuture result of an asynchronous operation
   * @throws org.jdiameter.api.InternalException The InternalException signals that internal error is occurred.
   * @throws org.jdiameter.api.IllegalDiameterStateException The IllegalStateException signals that session has incorrect state (invalid).
   * @throws org.jdiameter.api.RouteException The NoRouteException signals that no route exist for a given realm.
   * @throws org.jdiameter.api.OverloadException The OverloadException signals that destination host is overloaded.
   */
  Future send(Message message) throws InternalException, IllegalDiameterStateException, RouteException, OverloadException;

  /**
   * Sends and wait response message with defined timeout
   * @param message  request/answer diameter message
   * @return InFuture result of an asynchronous operation
   * @param timeOut value of timeout
   * @param timeUnit type of timeOut value
   * @throws org.jdiameter.api.InternalException  The InternalException signals that internal error is occurred.
   * @throws org.jdiameter.api.IllegalDiameterStateException The IllegalStateException signals that session has incorrect state (invalid).
   * @throws org.jdiameter.api.RouteException The NoRouteException signals that no route exist for a given realm.
   * @throws org.jdiameter.api.OverloadException The OverloadException signals that destination host is overloaded.
   */
  Future send(Message message, long timeOut, TimeUnit timeUnit) throws InternalException, IllegalDiameterStateException, RouteException, OverloadException;

}