ResolveMatches Message

A ResolveMatches message is a WS-Discovery message sent in response to a client's Resolve message by a matching service. For more information about ResolveMatches messages, see section 6.2 of the WS-Discovery Specification.

A ResolveMatches message is sent by UDP unicast to port 3702 (the port from which the client's Resolve message was sent). ResolveMatches must be sent within 4 seconds of the Resolve message; otherwise, Windows Firewall may drop the packet.

Any DPWS application that sends Resolve messages will receive ResolveMatches messages.

Note  This topic shows a sample DPWS message generated by WSDAPI clients and hosts. WSDAPI will parse and accept other DPWS-compliant messages that do not conform to this sample. Do not use this sample to verify DPWS interoperability; use the WSDAPI Basic Interoperability Tool (WSDBIT) instead.

The following SOAP message shows a sample ResolveMatches message.

<?xml version="1.0" encoding="utf-8" ?>
<soap:Envelope
    xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
    xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing"
    xmlns:wsd="http://schemas.xmlsoap.org/ws/2005/04/discovery"
    xmlns:wsdp="http://schemas.xmlsoap.org/ws/2006/02/devprof">
<soap:Header>
    <wsa:To>
        http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous
    </wsa:To>
    <wsa:Action>
        http://schemas.xmlsoap.org/ws/2005/04/discovery/ResolveMatches
    </wsa:Action>
    <wsa:MessageID>
        urn:uuid:64ddd01c-b0d6-4afd-aba6-6f1f161ce9d4
    </wsa:MessageID>
    <wsa:RelatesTo>
        urn:uuid:38d1c3d9-8d73-4424-8861-6b7ee2af24d3
    </wsa:RelatesTo>
    <wsd:AppSequence InstanceId="1"
        SequenceId="urn:uuid:369a7d7b-5f87-48a4-aa9a-189edf2a8772"
        MessageNumber="6">
    </wsd:AppSequence>
</soap:Header>
<soap:Body>
    <wsd:ResolveMatches>
        <wsd:ResolveMatch>
            <wsa:EndpointReference>
                <wsa:Address>
                    urn:uuid:37f86d35-e6ac-4241-964f-1d9ae46fb366
                </wsa:Address>
            </wsa:EndpointReference>
            <wsd:Types>wsdp:Device</wsd:Types>
            <wsd:XAddrs>
                http://192.168.0.2:5357/37f86d35-e6ac-4241-964f-1d9ae46fb366
            </wsd:XAddrs>
            <wsd:MetadataVersion>2</wsd:MetadataVersion>
        </wsd:ResolveMatch>
    </wsd:ResolveMatches>
</soap:Body>
</soap:Envelope>

A ResolveMatches message has the following focus points.

Focus pointXMLDescription
ResolveMatches
<wsa:Action>
    http://schemas.xmlsoap.org/ws/2005/04/discovery/ResolveMatches
</wsa:Action>
The ResolveMatches SOAP action identifies the message as a ResolveMatches message.
RelatesTo
<wsa:RelatesTo>
    urn:uuid:38d1c3d9-8d73-4424-8861-6b7ee2af24d3
</wsa:RelatesTo>
The identifier of the message to which the service is responding. This header matches the MessageId in the Resolve message.
AppSequence
<wsd:AppSequence InstanceId="1"
    SequenceId="urn:uuid:369a7d7b-5f87-48a4-aa9a-189edf2a8772"
    MessageNumber="6">
</wsd:AppSequence>
Contains application sequencing information, which helps to maintain the sequence of messages even if they are received out of order. The AppSequence is validated as described in AppSequence Validation Rules.
Address
<wsa:Address>
    urn:uuid:37f86d35-e6ac-4241-964f-1d9ae46fb366
</wsa:Address>
Contains the address of the endpoint being resolved.
XAddrs
<wsd:XAddrs>
    http://192.168.0.2:5357/37f86d35-e6ac-4241-964f-1d9ae46fb366
</wsd:XAddrs>
XAddrs are transport addresses that may be used for communication between client and service. Addrs are validated as described in XAddr Validation Rules.

 

Related topics

Discovery and Metadata Exchange Messages
Resolve Message

 

 

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