Term List Matching Plugin for ElasticSearch

Similar functionality to Lucene/Solr's TermsComponent. This Term List plugin will do simple matching against the complete term list found directly in Lucene.

1. Build this plugin:

    mvn clean compile test package 
    # this will create a file here: target/releases/elasticsearch-term-plugin-1.0-SNAPSHOT.zip
    PLUGIN_PATH=`pwd`/target/releases/elasticsearch-term-plugin-1.0-SNAPSHOT.zip
   

2. Install the PLUGIN

    cd $ELASTICSEARCH_HOME
    ./bin/plugin -url file:/$PLUGIN_PATH -install elasticsearch-term-plugin
   

3. Updating the plugin

    cd $ELASTICSEARCH_HOME
    ./bin/plugin -remove elasticsearch-term-plugin
    ./bin/plugin -url file:/$PLUGIN_PATH -install elasticsearch-term-plugin
   

Usage

Version

ElasticSearch version 0.90.6

Facet Parameters

• fields - list of fields to examine for terms, this is the only required field
• search - substring to search for (case insensitive)
• max_per_shard - max number of terms to pull from a shard
• prefix - (true/false) defaults to false, is the search to be used for prefix/starts with matching only?
• sort - (true/false) default to true, should returned list by alpha sorted
• case_insenstive - (true/false) defaults to true, should matching be done disregarding case

Facet example

    "facets" : {
	    "term_list_facet" : {
	      "term_list" : {
	        "fields" : [ "company", "other.company" ],			
	        "search" : "alt",
	        "prefix" : false,
	        "sort"   : true,
	        "case_insenstive"   : true,
	        "max_per_shard" : 10
	      }
    	}
    }

Results Example

   ...
   "facets":{
      "term_list_facet":{
         "_type":"term_list",
         "entries":[
             "alternet magic inc.",
             "altech tech technology chickens",
             "system altibox corp",
             "baltiware tv station llc"
         ]
      }
   }

setup test index

Note the analyzer configuration of tokenizer keyword, if you for example use the whitespace tokenizer your results will be strange

curl -XDELETE localhost:9200/my_test_index 

curl -XPOST localhost:9200/my_test_index -d '{
    "settings" : {
        "analysis": {
          "analyzer": {
            "default": {
              "filter": "lowercase", 
              "type": "custom", 
              "tokenizer": "keyword"
            	}
        	}
    	}
	}
 }' 

place test data in index

curl -XPUT localhost:9200/my_test_index/my_test_type/1 -d '{
	"my_test_type" : {
	"company" : "Walt Disney",
	"desc" : "A movie company and a TV channel",
	"other" : {"company" : "Walt Disney Theme Parks"}
	}
}'

curl -XPUT localhost:9200/my_test_index/my_test_type/2 -d '{
	"my_test_type" : {
	"company" : "Walts Plumbing",
	"desc" : "Best plumber in town",
	"other" : {"company" : "Walts waterproof rubber chicken company"}
	}
}'

query data with custom facet

curl -XGET localhost:9200/my_test_index/_search?pretty=1 -d '{
    "query" : {
        "match_all" : {  }
    },
    "facets" : {
	    "term_list_facet" : {
	      "term_list" : {
	        "fields" : [ "company", "other.company" ],			
	        "search" : "alt",
	        "prefix" : false,
	        "max_per_shard" : 10
	      }
    	}
    }
}'

License

elasticsearch-term-plugin

Copyright 2013 Endgame, Inc.

This product includes software plugin developed for ElasticSearch and Shay Banon – Elasticsearch

Inspiration was taken from Andrew Clegg and his ElasticSearch Approx Plugin
https://github.com/ptdavteam/elasticsearch-approx-plugin

Licensed under the Apache License, Version 2.0 (the "License"); you may
not use this file except in compliance with the License. You may obtain
a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.