package javax.megaco.message.descriptor;



import java.io.Serializable;



/**

 * Mux type constants used in package javax.megaco.message.descriptor. This

 * defines the mux type for the megaco package.

 */

public class MuxType implements Serializable {



	/**

	 * Identifies mux type to be h221. Its value shall be set to 0.

	 */

	public static final int M_H221 = 0;



	/**

	 * Identifies mux type to be h223. Its value shall be set to 1.

	 */

	public static final int M_H223 = 1;



	/**

	 * Identifies mux type to be "h226". Its value shall be set to 2.

	 */

	public static final int M_H226 = 2;



	/**

	 * Identifies mux type to be "v76". Its value shall be set to 3.

	 */

	public static final int M_V76 = 3;



	/**

	 * Identifies mux type to be "extension". Its value shall be set to 4.

	 */

	public static final int M_EXT = 4;



	/**

	 * Identifies a Mux Type object that constructs the class with the constant

	 * M_H221. Since it is reference to static final object, it

	 * prevents further instantiation of the same object in the system.

	 */

	public static final MuxType H221



	= new MuxType(M_H221);



	/**

	 * Identifies a Mux Type object that constructs the class with the constant

	 * M_H223. Since it is reference to static final object, it

	 * prevents further instantiation of the same object in the system.

	 */

	public static final MuxType H223



	= new MuxType(M_H223);



	/**

	 * Identifies a Mux Type object that constructs the class with the constant

	 * M_H226. Since it is reference to static final object, it

	 * prevents further instantiation of the same object in the system.

	 */

	public static final MuxType H226



	= new MuxType(M_H226);



	/**

	 * Identifies a Mux Type object that constructs the class with the constant

	 * M_V76. Since it is reference to static final object, it prevents

	 * further instantiation of the same object in the system.

	 */

	public static final MuxType V76



	= new MuxType(M_V76);



	/**

	 * Identifies a Mux Type object that constructs the class with the constant

	 * M_EXT. Since it is reference to static final object, it prevents

	 * further instantiation of the same object in the system.

	 */

	public static final MuxType EXT



	= new MuxType(M_EXT);



	private int muxType = -1;



	/**

	 * Constructs an class that specifies the mux type in the Mux descriptor.

	 * 

	 * @param mux_type

	 */

	private MuxType(int mux_type) {

		this.muxType = mux_type;

	}



	/**

	 * This method returns one of the static field constants defined in this

	 * class.

	 * 

	 * @return Returns an integer value that identifies the mux type to be one

	 *         of h221 or h223 or h226 or v26 or extension.

	 */

	public int getMuxType() {

		return this.muxType;

	}



	/**

	 * Returns reference of the MuxType object that identifies the mux type as

	 * value passed to this method.

	 * 

	 * @param value

	 *            - It is one of the possible values of the static constant that

	 *            this class provides.

	 * @return Returns reference of the MuxType object.

	 * @throws IllegalArgumentException

	 *             - If the value passed to this method is invalid, then this

	 *             exception is raised.

	 */

	public static final MuxType getObject(int value) throws IllegalArgumentException {



		switch (value) {



		case M_EXT:

			return EXT;

		case M_H221:

			return H221;

		case M_H223:

			return H223;

		case M_H226:

			return H226;

		case M_V76:

			return V76;



		default:

			throw new IllegalArgumentException("Wrong mux type passed: " + value);



		}

	}



	/**

	 * This method must be implemented to perform instance substitution during

	 * serialization. This method is required for reference comparison. This

	 * method if not implimented will simply fail each time we compare an

	 * Enumeration value against a de-serialized Enumeration instance.

	 * 

	 * @return

	 */

	private Object readResolve() {

		return getObject(this.muxType);

	}



	@Override

	public String toString() {

		switch (this.muxType) {



		case M_EXT:

			return "MuxType[EXT]";

		case M_H221:

			return "MuxType[H221]";

		case M_H223:

			return "MuxType[H223]";

		case M_H226:

			return "MuxType[H226]";

		case M_V76:

			return "MuxType[V76]";



		default:

			return "MuxType[" + this.muxType + "]";



		}

	}



}