See: ETSI TS 102 822-4 (Clause 12)
Assuming crid://example.com;name_extension/some-name (where ;name_extension is optional)
Protocol: TCP/IP based
See: ETSI TS 102 822-4 (Clause 12.3.5)
DNS: Get SRV record of _lres._tcp.name_extension.example.com, containing hostname and port
Protocol: TCP/IP based
See: ETSI TS 102 822-4 (Clause 12.3.6)
HTTP: Do a GET request to http://hostname:port/?CRID={crid1}&CRID={crid2?}&CRID={crid3?}&SubmittedCRID={submittedCRID?=0 or 1}&Result={result?=0 or 1}
Protocol: TCP/IP based
See: ETSI TS 102 822-4 (Clause 12.3.7)
Possibilities:
- XML with result of resolved CRIDs
- Redirect, may be HTTPS negotiation
- XML with Resolving Authority Record (RAR)
<?xml version="1.0" encoding="UTF-8"?>
<!--See: ETSI TS 102 822-4 (Annex A.1.1)-->
<ContentReferencingTable version="1.0" xmlns="urn:tva:ContentReferencing:{YYYY}">
<Result CRID="crid://example.com;name_extension/some-name" complete="false" acquire="all" status="resolved" reresolveDate="1970-01-01T00:00:00"></Result>
<Result CRID="crid://example.net;name_extension/some-name-2" complete="false" acquire="all" status="resolved" reresolveDate="1970-01-01T00:00:00">
<CRIDResult>
<Crid>crid://example.com;name_extension/some-other-name-1</Crid>
<Crid>crid://example.net;name_extension/some-other-name-2</Crid>
<Crid>crid://example.org;name_extension/some-other-name-3</Crid>
</CRIDResult>
<CRIDResult>
<Crid>crid://example.com;name_extension/some-other-name-4</Crid>
<Crid>crid://example.net;name_extension/some-other-name-5</Crid>
<Crid>crid://example.org;name_extension/some-other-name-6</Crid>
</CRIDResult>
</Result>
<Result CRID="crid://example.org;name_extension/some-name-3" complete="false" acquire="all" status="resolved" reresolveDate="1970-01-01T00:00:00">
<LocationsResult>
<Locator instanceMetadataId="imi:1">dvb://1.4ee2.3f4;4f5@2001-03-
27T18:00:00.00+01:00</Locator>
<DecomposedLocator start="2001-03-29T18:00:00.00" duration="P20M" end="2001-04- 03T18:00:00.00">ftp://myserver.example.com/directory12-
backup/hello.mp3</DecomposedLocator>
<StructuredLocator></StructuredLocator><!--This one was added in a 1.1.1+ spec-->
</LocationsResult>
<LocationsResult>
<Locator instanceMetadataId="imi:1">dvb://1.4ee2.3f4;4f5@2001-03-
27T18:00:00.00+01:00</Locator>
<DecomposedLocator start="2001-03-29T18:00:00.00" duration="P20M" end="2001-04- 03T18:00:00.00">ftp://myserver.example.com/directory12-
backup/hello.mp3</DecomposedLocator>
<StructuredLocator></StructuredLocator><!--This one was added in a 1.1.1+ spec-->
</LocationsResult>
</Result>
</ContentReferencingTable><?xml version="1.0" encoding="UTF-8"?>
<ResolvingAuthorityRecordTable>
<!--See: ETSI TS 102 822-4 (Annex A.1.2)-->
</ResolvingAuthorityRecordTable>Assuming crid://example.com;name_extension/some-name (where ;name_extension is optional); this flow will try to discover a SOAP Metadata service based on the example.com;name_extension part.
See: ETSI TS 102 822-6-2 (Clause 5)
Options:
- DNS: Get SRV record of
_gmet._tcp.name_extension.example.com, containing hostname and port - UDDI: Using
uddi:TV-Anytime.org:get_Data_v10 - WS-Inspection: Do a GET request to
http://example.com/{name_extension}/inspection.wsil
In the end, based on just example.com;name_extension, those 3 options will give an URL that can receive SOAP messages.
There are also 2 other options:
- Non-standardized (e.g. manual or pre-programmed)
- Extracting URL from unidirectional stream (e.g. DVB)
Headers:
SOAPAction="get_Data"
<?xml version="1.0" encoding="UTF-8"?>
<Envelope xmlns="http://schemas.xmlsoap.org/soap/envelope/">
<Body><get_Data maxPrograms="123">
<QueryConstraints>
<PredicateBag contextNode negate="false" type="AND|OR">
<!--Inside here can be a PredicateBag, BinaryPredicate AND/OR UnaryPredicate again.-->
</PredicateBag>
<!--OR-->
<BinaryPredicate fieldID="some-field-name" fieldValue="some-field-value" test="equals|not_equals|contains|greater_than|greater_than_or_equals|less_than|less_than_or_equals"/>
<!--OR-->
<UnaryPredicate fieldID="some-field-name" test="exists"/>
</QueryConstraints>
<RequestedTables>
<Table type="ContentReferencingTable|ClassificationSchemeTable|ProgramInformationTable|GroupInformationTable|CreditsInformationTable|ProgramLocationTable|ServiceInformationTable|ProgramReviewTable|SegmentInformationTable">
<SortCriteria fieldID="some-field-name" order="ascending|descending"/>
<SortCriteria fieldID="some-field-name" order="ascending|descending"/>
<SortCriteria fieldID="some-field-name" order="ascending|descending"/>
</Table>
</RequestedTables>
</get_Data> </Body>
</Envelope><?xml version="1.0" encoding="UTF-8"?>
<Envelope xmlns="http://schemas.xmlsoap.org/soap/envelope/">
<Body><get_Data_Result serviceVersion="1234" truncated="false">
<TableSortingInformation>
<Table type="ContentReferencingTable|ClassificationSchemeTable|ProgramInformationTable|GroupInformationTable|CreditsInformationTable|ProgramLocationTable|ServiceInformationTable|ProgramReviewTable|SegmentInformationTable">
<SortCriteria fieldID="some-field-name" order="ascending|descending"/>
<SortCriteria fieldID="some-field-name" order="ascending|descending"/>
<SortCriteria fieldID="some-field-name" order="ascending|descending"/>
</Table>
</TableSortingInformation>
<TVAMain>
<!--See TVAMain schema-->
</TVAMain>
<ContentReferencingTable>
<!--See ContentReferencing schema-->
</ContentReferencingTable>
<InvalidFragments>
<!--Zero or more <Fragment/> tags with some TVA-specific attributes-->
</InvalidFragments>
</get_Data_Result> </Body>
</Envelope>