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75 lines
2.6 KiB
75 lines
2.6 KiB
4 months ago
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/*
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* Conditions Of Use
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*
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* This software was developed by employees of the National Institute of
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* Standards and Technology (NIST), an agency of the Federal Government.
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* Pursuant to title 15 Untied States Code Section 105, works of NIST
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* employees are not subject to copyright protection in the United States
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* and are considered to be in the public domain. As a result, a formal
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* license is not needed to use the software.
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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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* .
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*
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*/
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package gov.nist.javax.sip;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import javax.sip.address.Hop;
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import gov.nist.core.net.AddressResolver;
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import gov.nist.javax.sip.stack.HopImpl;
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import gov.nist.javax.sip.stack.MessageProcessor;
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/**
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* This is the default implementation of the AddressResolver. The AddressResolver is a NIST-SIP specific
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* feature. The address resolover is consulted to convert a Hop into a meaningful address. The default
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* implementation is a passthrough. It only gets involved in setting the default port. However, you
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* can register your own AddressResolver implementation
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* Note that
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* The RI checks incoming via headers for resolving the sentBy field. If you want to set it to
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* some address that cannot be resolved you should register an AddressResolver with the stack.
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* This feature is also useful for DNS SRV lookup which is not implemented by the RI at present.
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*
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* @version 1.2
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* @since 1.2
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* @see gov.nist.javax.sip.SipStackImpl#setAddressResolver(AddressResolver)
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*
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* @author M. Ranganathan
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*
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*/
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public class DefaultAddressResolver implements AddressResolver {
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public DefaultAddressResolver() {
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}
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/*
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* (non-Javadoc)
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* @see gov.nist.core.net.AddressResolver#resolveAddress(javax.sip.address.Hop)
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*/
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public Hop resolveAddress(Hop inputAddress) {
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if (inputAddress.getPort() != -1)
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return inputAddress;
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else {
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return new HopImpl(inputAddress.getHost(),
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MessageProcessor.getDefaultPort(inputAddress.getTransport()),inputAddress.getTransport());
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}
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}
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}
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