gov.nist.javax.sip.UtilsExt Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source
* This code has been contributed to the public domain.
*
* This software is provided by NIST as a service and is expressly
* provided "AS IS." NIST MAKES NO WARRANTY OF ANY KIND, EXPRESS, IMPLIED
* OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTY OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT
* AND DATA ACCURACY. NIST does not warrant or make any representations
* regarding the use of the software or the results thereof, including but
* not limited to the correctness, accuracy, reliability or usefulness of
* the software.
*
* Permission to use this software is contingent upon your acceptance
* of the terms of this agreement.
*/
package gov.nist.javax.sip;
/**
* @author [email protected]
*
*/
public interface UtilsExt {
/**
* Generate a call identifier. This is useful when we want to generate a
* call identifier in advance of generating a message.
* @since 2.0
*/
public String generateCallIdentifier(String address);
/**
* Generate a tag for a FROM header or TO header. Just return a random 4
* digit integer (should be enough to avoid any clashes!) Tags only need to
* be unique within a call.
*
* @return a string that can be used as a tag parameter.
*
* synchronized: needed for access to 'rand', else risk to generate same tag
* twice
* @since 2.0
*/
public String generateTag();
/**
* Generate a cryptographically random identifier that can be used to
* generate a branch identifier.
*
* @return a cryptographically random gloablly unique string that can be
* used as a branch identifier.
* @since 2.0
*/
public String generateBranchId();
}