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