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This tutorial demonstrates how to generate GeoRSS for Solr, and then create a simple connection between Solr GeoRSS and SIS. By doing this, you will be able to visualize the locations of you Solr documents on the map of the SIS service.

Warning

This module has not be maintained for years. Some dependencies have changed, which may break this module.

 

Prerequisites

This tutorial assumes that you already have Solr and SIS webapp installed.

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Add the following configuration to the Solr solrconfig.xml file (you may add this manually or use the earliest version of the GeoRSS ResponseWriter patch to do this)

Code Block

<queryResponseWriter name="georss"/>

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You need to edit the Solr schema.xml file before indexing the above fields, e.g. adding the following lines if they do not exist: 

Code Block

   <field name="name" type="text_general" indexed="true" stored="true"/>
   <field name="link" type="string" indexed="true" stored="true"/>
   <field name="location" type="location" indexed="true" stored="true"/>
   <field name="pubDate" type="date" indexed="true" stored="true" multiValued="false"/>

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Suppose your Solr URL is under http://localhost:8080/solr/. In the browser, navigate to http://localhost:8080/solr/select/?q=*:*&wt=georss, and then "view page source". If you have installed GeoRSS ResponseWriter successfully and indexed the required fields, you should be able to see the output similar to the following.

Code Block

<?xml version='1.0'?>
<rss version='2.0' xmlns:geo='http://www.w3.org/2003/01/geo/wgs84_pos#'>
	<channel>
		<title>Solr Search Results</title>
		<description>GeoRSS Formatted Search Results</description>
		<item>
			<title>00000001 pages 1-249.pdf</title>
			<link>http://localhost:8080/solr/vault/00000001 pages 1-249.pdf</link>
			<pubDate>Sat, 28 Apr 2012 23:01:48 PDT</pubDate>
			<geo:lat>37.25022</geo:lat>
			<geo:long>-119.75126</geo:long>
		</item>
		<item>
			<title>00000001 pages 250-461.pdf</title>
			<link>http://localhost:8080/solr/vault/00000001 pages 250-461.pdf</link>
			<pubDate>Sat, 28 Apr 2012 23:01:48 PDT</pubDate>
			<geo:lat>37.25022</geo:lat>
			<geo:long>-119.75126</geo:long>
		</item>
		<item>
			<title>100-342146 Section 1 -6.PDF</title>
			<link>http://localhost:8080/solr/vault/100-342146 Section 1 -6.PDF</link>
			<pubDate>Sat, 28 Apr 2012 23:01:48 PDT</pubDate>
			<geo:lat>32.31872</geo:lat>
			<geo:long>-102.54572</geo:long>
		</item>
                ... ...
     </channel>
</rss>

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Add the URL used in Solr GeoRSS to the sis_location_config.xml file for the SIS webapp. Make sure to do XML encoding for all the '&' in the URL. Remove all of the other RSS URLs from the file. After editing the file, it should look similar to the following:

Code Block

<sis:locationConfig xmlns:sis="http://incubator.apache.org/sis/1.0">
    <capacity>4</capacity>
    <depth>10</depth>
    <url>http://localhost:8080/solr/select/?q=*:*&amp;wt=georss&amp;start=0&amp;rows=2000</url>
</sis:locationConfig>

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