color_match.sh

curl -XDELETE localhost:9200/test
curl -XPUT localhost:9200/test -d '{
    "settings": {
        "index.number_of_shards": 1,
        "index.number_of_replicas": 0
    }
}
'
curl -XPOST localhost:9200/test/doc/1 -d '{
    "dna":[
       {
            "color":2397879,
            "area":0.4
       },
       {
            "color":938893,
            "area":0.3
       },
       {
            "color":3498438,
            "area":0.2
       },
       {
            "color":894879,
            "area":0.1
       }
    ]
}
'
curl -X POST 'http://localhost:9200/test/_refresh'
curl -X GET 'http://localhost:9200/test/doc/_search?pretty' -d '{
    "query": {
        "filtered" : {
            "query": {
                "match_all": {}
            },
            "filter": {
                "range" : {
                    "dna.color": {
                        "from": 900000,
                        "to":  1100000
                    }
                }
            }
        }
    },
    "sort": {
        "_script": {
            "script": "area = 0; mindiff = Long.MAX_VALUE; for (entry : _source.dna) {diff = Math.abs(entry.color - target); if (diff < mindiff) { mindiff = diff; area = entry.area } };  mindiff * area",
            "type": "number",
            "params": {
                "target" : 1000000
            }
        }
    }
}'