50 lines
2.0 KiB
Plaintext
50 lines
2.0 KiB
Plaintext
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---+ HeaderProposalThree
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The header is used in both requests and responses to communicate directly with a single resource (datasource). Examples:
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---+++++ Header from a "manual" request sent directly to a resource
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<verbatim>
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<header>
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<source accesspoint="13.14.15.16" sendtime="2001-12-17T09:30:47-05:00" HeaderProposalThree>
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</header>
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</verbatim>
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Note: in this case no software has been specified, and there's only a single source element.
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---+++++ Header from a response to the previous request
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<verbatim>
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<header>
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<source accesspoint="http://mydomain.org/provider/wrapper.php" sendtime="2001-12-17T09:30:50-05:00">
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<software name="PHP Provider" version="1.1.4" HeaderProposalThree>
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</source>
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</header>
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</verbatim>
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Note: the source address in resource responses must be the exact accesspoint of the resource, otherwise clients won't be able to easily identify which response belongs to each resource.
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---+++++ Header from a client software request that has been dispatched by a portal
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<verbatim>
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<header>
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<source accesspoint="11.12.13.14" sendtime="2001-12-17T09:30:47-05:00">
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<software name="GBIF Website" HeaderProposalThree>
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</source>
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<source accesspoint="15.16.17.18" sendtime="2001-12-17T09:30:49-05:00">
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<software name="Portal Engine" version="0.95" HeaderProposalThree>
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</source>
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</header>
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</verbatim>
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Note: Intermediaries such as portals (MessageBrokers) are not obliged to include a source element in the header, although that's a recommended behavior.
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---+++++ Header from a more detailed response to the previous request
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<verbatim>
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<header>
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<source accesspoint="http://mydomain.org/myresource/wrapper.py" sendtime="2001-12-17T09:30:50-05:00">
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<software name="PyWrapper" version="1.3.6" HeaderProposalThree>
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<software name="Python" version="2.3" HeaderProposalThree>
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</source>
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</header>
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</verbatim>
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Note: each "source" has the freedom to specify other related software.
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