/*
 * Copyright (c) 1996-2001
 * Logica Mobile Networks Limited
 * All rights reserved.
 *
 * This software is distributed under Logica Open Source License Version 1.0
 * ("Licence Agreement"). You shall use it and distribute only in accordance
 * with the terms of the License Agreement.
 *
 */
package org.smpp;

import org.smpp.debug.*;

/**
 * Class <code>SmppObject</code> is the root of the SMPP Library
 * class hierarchy. Every class in the library has <code>SmppObject</code>
 * as a superclass except of classes in the <code>org.smpp.debug</code>
 * package, exceptions and classes <code>Data</code>,
 * <code>OutbindListener</code> and <code>OutbindEvent</code>.
 * 
 * @author Logica Mobile Networks SMPP Open Source Team
 * @version $Revision: 1.1 $
 * @see Debug
 * @see Event
 */
public class SmppObject {

	/**
	 * Library-wide object used for writting debug information.
	 * Every class derived from <code>SmppObject</code>
	 * can use this object for logging debug information.<br>
	 * It is initialised to an instance of <code>DefaultDebug</code> class
	 * which only writes debug information to the screen.
	 * <br>
	 * For tracing purposes the library reserves tracing groups 1 - 15
	 * for internal use, see below the description of the particular groups.
	 * The implementation of <code>Debug</code> class is expeted to handle
	 * these groups correctly (for example ignore groups at all).
	 * 
	 * @see Debug
	 * @see DefaultDebug
	 * @see FileDebug
	 */
	static protected Debug debug;

	/**
	 * Library-wide object used for writting event information, basically
	 * information about exceptions. Every class derived from
	 * <code>SmppObject</code> can use this object for logging event
	 * information.<br>
	 * It is initialised to an instance of <code>DefaultEvent</code> class
	 * which only writes event information to the screen.
	 * 
	 * @see Event
	 * @see DefaultEvent
	 * @see FileEvent
	 */
	static protected Event event;

	/** Debug tracing group for Receiver & Transmitter classes. */
	public static final int DRXTX = 1;

	/** Detailed debug tracing group for Receiver & Transmitter classes. */
	public static final int DRXTXD = 2;

	/** Event more detailed debug tracing group for Receiver & Transmitter classes. */
	public static final int DRXTXD2 = 3;

	/** Debug tracing group for Receiver & Transmitter classes. */
	public static final int DSESS = 4;

	/** Debug tracing group for PDU and derived classes. */
	public static final int DPDU = 5;

	/** Detailed debug tracing group for PDU and derived classes. */
	public static final int DPDUD = 6;

	/** Debug tracing group for communication (TCPIPConnection, Connection) classes. */
	public static final int DCOM = 7;

	/** Detailed debug tracing group for communication (TCPIPConnection, Connection) classes. */
	public static final int DCOMD = 8;

	/** Debug tracing group for utility classes. */
	public static final int DUTL = 9;

	/** Detailed debug tracing group for utility classes. */
	public static final int DUTLD = 10;

	/**
	 * Static initialiser initialises library-wide debug and event
	 * object to the default implementations.
	 * 
	 * @see DefaultDebug
	 * @see DefaultEvent
	 */
	static {
		debug = new DefaultDebug();
		event = new DefaultEvent();
	}

	/**
	 * Sets the debug object, which is used for writting debugging info.
	 * 
	 * @param   dbg   the instance of the implementation of <code>Debug</code>
	 * class
	 * @see Debug
	 * @see DefaultDebug
	 * @see FileDebug
	 */
	static public void setDebug(Debug dbg) {
		debug = dbg;
	}

	/**
	 * Sets the event object, which is used for writting debugging info.
	 * 
	 * @param   evt   the instance of the implementation of <code>Event</code>
	 * class
	 * @see Event
	 * @see DefaultEvent
	 * @see FileEvent
	 */
	static public void setEvent(Event evt) {
		event = evt;
	}

	/**
	 * Returns current event object used for writting event info.
	 *
	 * @return the current event object
	 */
	static public Debug getDebug() {
		return debug;
	}

	/**
	 * Returns current debug object used for writting debug info.
	 *
	 * @return the current debug object
	 */
	static public Event getEvent() {
		return event;
	}
}
/*
 * $Log: SmppObject.java,v $
 * Revision 1.1  2003/07/23 00:28:39  sverkera
 * Imported
 *
 * 
 * Old changelog:
 * 13-07-01 ticp@logica.com added getDebug() and getEvent() static methods
 *						    for returning current library-wide debug objects
 * 26-09-01 ticp@logica.com added toolkit wide functional groups constant
 *						    definitions for debugging
 */