bd5c7d0ea2
In Maven parent project, in dependency management, we should only declare which versions of 3rd party jars we want to use but not force any scope. It makes then more obvious in modules what is exactly the scope of any dependency. For example, one could imagine importing `jimfs` as a `compile` dependency in another module/plugin with: ```xml <dependency> <groupId>com.google.jimfs</groupId> <artifactId>jimfs</artifactId> </dependency> ``` But it won't work as expected as the default maven `scope` should be `compile` but here it's `test` as defined in the parent project. So, if you want to use this lib for tests, you should simply define: ```xml <dependency> <groupId>com.google.jimfs</groupId> <artifactId>jimfs</artifactId> <scope>test</scope> </dependency> ``` We also remove `maven-s3-wagon` from gce plugin as it's not used. |
||
|---|---|---|
| .. | ||
| src | ||
| README.md | ||
| pom.xml | ||
README.md
JavaScript lang Plugin for Elasticsearch
The JavaScript language plugin allows to have javascript (or js) as the language of scripts to execute.
In order to install the plugin, simply run:
bin/plugin install elasticsearch/elasticsearch-lang-javascript/2.5.0
You need to install a version matching your Elasticsearch version:
| elasticsearch | JavaScript Plugin | Docs |
|---|---|---|
| master | Build from source | See below |
| es-1.x | Build from source | 2.6.0-SNAPSHOT |
| 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 |
| es-1.2 | 2.2.0 | 2.2.0 |
| es-1.1 | 2.1.0 | 2.1.0 |
| es-1.0 | 2.0.0 | 2.0.0 |
| es-0.90 | 1.4.0 | 1.4.0 |
To build a SNAPSHOT version, you need to build it with Maven:
mvn clean install
plugin --install lang-javascript \
--url file:target/releases/elasticsearch-lang-javascript-X.X.X-SNAPSHOT.zip
Using javascript with function_score
Let's say you want to use function_score API using javascript. 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",
"lang": "javascript"
}
}
}
}'
gives
{
// ...
"hits": {
"total": 2,
"max_score": 4,
"hits": [
{
// ...
"_score": 4
},
{
// ...
"_score": 1
}
]
}
}
Using javascript 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": "js"
},
"s_obj1_test": {
"script": "_source.obj1.test", "lang": "js"
},
"s_obj2": {
"script": "_source.obj2", "lang": "js"
},
"s_obj2_arr2": {
"script": "_source.obj2.arr2", "lang": "js"
}
}
}'
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.