/*
 * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */
package org.opendaylight.protocol.pcep;

import java.io.Closeable;

/**
 * PCEP Session represents the finite state machine in PCEP,
 * including timers and its purpose is to create a PCEP connection
 * between PCE/PCC. Session is automatically started, when TCP
 * connection is created, but can be stopped manually.
 * If the session is up, it has to redirect messages to/from user.
 * Handles also malformed messages and unknown requests.
 */
public interface PCEPSession extends Closeable {

	/**
	 * Sends message from user to PCE/PCC. If the user sends an Open
	 * Message, the session returns an error (open message is only
	 * allowed, when a PCEP handshake is in progress). Close message
	 * will close the session and free all the resources.
	 * @param message message to be sent
	 */
	public void sendMessage(PCEPMessage message);
}