/* $Id$ */
package org.noreply.fancydress.type3.routing;

/**
 * Base class for all Routings that are final destinations.
 *
 * Routings of this type usually mean that the message leaves the Type III
 * network at the server processing them (for instance to be delivered via
 * SMTP).  In case of a DROP type it means that the packet is dropped at this
 * node.
 */
public abstract class RoutingDestination extends Routing {
	/**
	 * The size of decoding handles for payloads
	 */
	public static final int DECODINGHANDLE_LEN = 20;

	/**
	 * A decoding handle as is used in SURBS or forward encrypted messages.
	 */
	protected byte[] decodingHandle;

	/**
	 * Default constructor.
	 *
	 *  @param type The routing type as integer.
	 */
	protected RoutingDestination(int type) {
		super (type);
		decodingHandle = null;
	}

	/**
	 * Set a decoding handle as is used in SURBS or forward encrypted messages.
	 *
	 * @param decodingHandle decoding handle
	 */
	public void setDecodingHandle(byte[] decodingHandle) {
		if (decodingHandle.length != DECODINGHANDLE_LEN)
			throw new Error("Decoding handle is not DECODINGHANDLE_LEN bytes long.");
		this.decodingHandle = decodingHandle;
	}
}