Google Search Appliance External Metadata Indexing Guide Manuel d'utilisateur télécharger pdf (Page 11)

Google Search Appliance: External Metadata Indexing Guide 11

Scenario 5

Metadata: Inserted into the feed XML file.

Primary Document: Referenced by the URL in the feed XML file (web feed).

This scenario is similar to the previous scenario, except that the primary document is referenced by URL

only (instead of the contents of the primary document being fed to the search appliance). The feed file

therefore contains the

information and, for each

element, the URL of the record

and the

elements.

1. Create the feed XML file and define the header information, including the data source name, as

shown in the following example:

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE gsafeed PUBLIC "-//Google//DTD GSA Feeds//EN" "">

<datasource>sample2</datasource>

<feedtype>metadata-and-url</feedtype>

</header>

Note that the

element is

metadata-and-url

. This tells the web or file system crawler

to pick up the URLs for the primary document and index them accordingly.

2. Create a

element for each primary document. In the

element, insert one or

<meta>

elements, as shown in the following example:

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE gsafeed PUBLIC "-//Google//DTD GSA Feeds//EN" "">

<datasource>sample2</datasource>

<feedtype>metadata-and-url</feedtype>

</header>

<group>

<record url="http://www.corp.enterprise.com/hello02"

mimetype="text/plain" last-modified="Tue, 17 Feb 2009 12:45:26 GMT">

</metadata>

External Metadata Sent in an HTTP Header

At crawl time, the search appliance can accept external metadata, along with documents, through the

X-

GSA-External-Metadata

HTTP response header. This is useful for indexing metadata for non-HTML

documents, where it is not possible to include metadata. The metadata supplied at crawl time replaces

any and all metadata that may have been indexed earlier.

To use this method of indexing external metadata, the web service that stores the content needs to be

designed to generate the optional

X-GSA-External-Metadata

HTTP header. The header includes a

comma separated list of encoded values, as specified in RFC2616 (http://www.w3.org/Protocols/

rfc2616/rfc2616.html), Section 4.2:

X-GSA-External-Metadata: value_1, value_2,...

1 2 ... 6 7 8 9 10 11 12

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Google Search Appliance External Metadata Indexing Guide Manuel d'utilisateur Page 11

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