Elasticsearch update fields using groovy scripts

scripts

ORIGINAL DOC
-------------
{
"counter": 61,
"tags": ["red", "blue"]
}

Updating Single Field if its not ther in the array
-------------------
{
  "script": "if(ctx._source.tags.contains(tag)){   ctx.op=\"none\" } else { ctx._source.tags += tag }",
  "params": {
    "tag": "blue"
  }
}

Updating Multiple Fields
-----------------------

{
  "script": "ctx._source.counter += count;if(ctx._source.tags.contains(tag)){   \"none\" } else { ctx._source.tags += tag };",
  "params": {
    "tag": "green",
    "count": 14
  }
}




Create the document if its does not exist
------------------

{
  "script": "ctx._source.cnt += count;if(!ctx._source.tags.contains(tag)){ ctx._source.tags += tag }",
  "params": {
    "tag": "red123",
    "count": 14
  },
  "upsert": {
    "cnt": 1,
    "tags": [
      "red"
    ]
  }
}

### Delete documents in an index
`curl -XDELETE 'http://localhost:9200/taleo/resume/_query' -d '{"query":{"match_all":{}}}'`