NGram Analyzer in ElasticSearch

custom_analyzer.sh

curl -X DELETE localhost:9200/custom_analyzer_test
curl -X PUT    localhost:9200/custom_analyzer_test -d '
{
  "settings" : {
    "index" : {
      "number_of_shards"   : 1,
      "number_of_replicas" : 0,
      "analysis" : {
        "analyzer" : {
          "url_analyzer" : {
            "type" : "custom",
            "tokenizer" : "lowercase",
            "filter"    : ["lowercase", "stop", "url_filter", "url_ngram"]
          }
        },
        "filter" : {
          "url_filter" : {
            "type" : "stop",
            "stopwords" : ["http", "https", ":", "/", ".", "html"]
          },
          "url_ngram" : {
            "type" : "nGram"
          }
        }
      }
    }
  },

  "mappings": {
    "url": {
      "properties": {
        "url": {
          "type": "string",
          "analyzer": "url_analyzer",
          "boost": 10
        },
        "title": {
          "type": "string",
          "analyzer": "snowball",
          "boost": 5
        },
        "description": {
          "type": "string",
          "analyzer": "snowball"
        },
        "tags": {
          "type": "string",
          "analyzer": "keyword"
        }
      }
    }
  }
}
'

curl -X POST   "http://localhost:9200/custom_analyzer_test/url?refresh=true" -d '
{
  "url"         : "http://www.euruko2011.org",
  "title"       : "EURUKO 2011",
  "description" : "The greatest Ruby conference in Europe!",
  "tags"        : ["ruby", "conference"]
}'

# curl "http://localhost:9200/custom_analyzer_test/_analyze?text=http://euruko2011.org/speakers.html&analyzer=url_analyzer"

curl "http://localhost:9200/custom_analyzer_test/_search?q=url:peak"