Git Product home page Git Product logo

elasticsearch-lang-python's Introduction

IMPORTANT: this project now moved to elasticsearch repository.

Only important bug fixes will be merged here. If you have a question about the plugin, please use discuss.elastic.co. If you want to report a bug, please use elasticsearch repository.


Python lang Plugin for Elasticsearch

The Python (jython) language plugin allows to have python as the language of scripts to execute.

In order to install the plugin, simply run:

bin/plugin install elasticsearch/elasticsearch-lang-python/2.7.0

You need to install a version matching your Elasticsearch version:

elasticsearch Python Lang Plugin Docs
master Build from source See below
es-1.7 2.7.0 2.7.0
es-1.6 2.6.0 2.6.0
es-1.5 2.5.0 2.5.0
es-1.4 2.4.1 2.4.1
es-1.3 2.3.1 2.3.1
< 1.3.5 2.3.0 2.3.0
es-1.2 2.2.0 2.2.0
es-1.0 2.0.0 2.0.0
es-0.90 1.0.0 1.0.0

To build a SNAPSHOT version, you need to build it with Maven:

mvn clean install
plugin --install lang-python \
       --url file:target/releases/elasticsearch-lang-python-X.X.X-SNAPSHOT.zip

User Guide

Using python with function_score

Let's say you want to use function_score API using python. Here is a way of doing it:

curl -XDELETE "http://localhost:9200/test"

curl -XPUT "http://localhost:9200/test/doc/1" -d '{
  "num": 1.0
}'

curl -XPUT "http://localhost:9200/test/doc/2?refresh" -d '{
  "num": 2.0
}'

curl -XGET "http://localhost:9200/test/_search?pretty" -d'
{
  "query": {
    "function_score": {
      "script_score": {
        "script": "doc[\"num\"].value * _score",
        "lang": "python"
      }
    }
  }
}'

gives

{
   // ...
   "hits": {
      "total": 2,
      "max_score": 2,
      "hits": [
         {
            // ...
            "_score": 2
         },
         {
            // ...
            "_score": 1
         }
      ]
   }
}

Using python with script_fields

curl -XDELETE "http://localhost:9200/test"

curl -XPUT "http://localhost:9200/test/doc/1?refresh" -d'
{
  "obj1": {
   "test": "something"
  },
  "obj2": {
    "arr2": [ "arr_value1", "arr_value2" ]
  }
}'

curl -XGET "http://localhost:9200/test/_search" -d'
{
  "script_fields": {
    "s_obj1": {
      "script": "_source[\"obj1\"]", "lang": "python"
    },
    "s_obj1_test": {
      "script": "_source[\"obj1\"][\"test\"]", "lang": "python"
    },
    "s_obj2": {
      "script": "_source[\"obj2\"]", "lang": "python"
    },
    "s_obj2_arr2": {
      "script": "_source[\"obj2\"][\"arr2\"]", "lang": "python"
    }
  }
}'

gives

{
  // ...
  "hits": [
     {
        // ...
        "fields": {
           "s_obj2_arr2": [
              [
                 "arr_value1",
                 "arr_value2"
              ]
           ],
           "s_obj1_test": [
              "something"
           ],
           "s_obj2": [
              {
                 "arr2": [
                    "arr_value1",
                    "arr_value2"
                 ]
              }
           ],
           "s_obj1": [
              {
                 "test": "something"
              }
           ]
        }
     }
  ]
}

License

This software is licensed under the Apache 2 license, quoted below.

Copyright 2009-2014 Elasticsearch <http://www.elasticsearch.org>

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.

elasticsearch-lang-python's People

Watchers

 avatar

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    ๐Ÿ–– Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. ๐Ÿ“Š๐Ÿ“ˆ๐ŸŽ‰

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google โค๏ธ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.