Name:
localsolr-locallucene-km.

Author: CHIKURA Shinsaku <scene.sc@gmail.com>
Based on: http://sourceforge.net/projects/locallucene/

Description:
Modified version of LocalSolr/LocalLucene add support for treating distance as km(kilometers).

Features:
  * Add support for treating distance as KM(Kilometers). (Mile support removed.)
  * Fix query parameter name definition.

Usage:
  * Copy lib/*.jar files to solr/lib directory.
  * Add some text described below:
    Almost same as http://www.gissearch.com/localsolr

solr/conf/solrconfig.xml:
  <updateRequestProcessorChain>
      <processor class="com.pjaol.search.solr.update.LocalUpdateProcessorFactory">
        <str name="latField">lat</str><!-- (1) -->
        <str name="lngField">lng</str><!-- (2) -->
        <int name="startTier">9</int>
        <int name="endTier">17</int>
      </processor>
   <processor class="solr.RunUpdateProcessorFactory" />
   <processor class="solr.LogUpdateProcessorFactory" />
  </updateRequestProcessorChain>

<!-- local lucene request handler -->
<searchComponent name="localsolr"     class="com.pjaol.search.solr.component.LocalSolrQueryComponent">
    <!-- Query parameter name for Latitude/Longitude
         You can change this. But must be same as (1) or (2). -->
    <str name="latField">lat</str>
    <str name="lngField">lng</str>
    <!-- Radius query parameter. default: 'radius' -->
    <str name="radiusField">km</str>

</searchComponent>

<requestHandler name="geo" class="org.apache.solr.handler.component.SearchHandler">
    <arr name="components">
      <str>localsolr</str>
      <str>facet</str>
      <str>mlt</str>
      <str>highlight</str>
      <str>debug</str>
    </arr>
</requestHandler>

solr/conf/schema.xml:
<!-- local lucene field types -->
<field name="lat" type="sdouble" indexed="true" stored="true"/><!-- must match the latField in solrconfig.xml -->
<field name="lng" type="sdouble" indexed="true" stored="true"/><!-- must match the lngField in solrconfig.xml -->
<field name="geo_distance" type="sdouble"/> <!-- Optional but used for distributed searching -->
<dynamicField name="_local*" type="sdouble" indexed="true" stored="true"/><!-- used internally by localsolr -->