ElasticSearch Support for jQuery-QueryBuilder

elastic.js

*!
 * jQuery QueryBuilder ElasticSearch Filter Support
 * Allows to convert exported rules as a ElasticSearch filter query object.
 * Copyright 2015 Esat Emre Demirel (http://blog.esatemre.com)
 */
 function getRawFilter(data) {
    var hede = parse(data);
    return JSON.stringify(hede);
}
function parse(data) {
    if (!data.rules) {
        return {};
    }
    var parts = [];
    data.rules.forEach(function (rule) {
        if (rule.rules && rule.rules.length > 0) {
            parts.push(parse(rule));
        } else {
            parts.push(getElasticFilter(rule.operator, rule.field, changeType(rule.value, rule.type)));
        }
    });
    var res = {};
    if (parts.length > 0) {
        res[data.condition.toLowerCase()] = parts;
    }
    return res;
}
function format(field, value) {
    var object = {};
    object[field] = value;
    return object;
}
function formatArray(field, value) {
    var object = {}, array = [];
    var splitted = value.toLowerCase().split(',');
    splitted.forEach(function (str) { array.push(str); });
    object[field] = array;
    return object;
}
function escapeRegExp(str) {
    return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
}
function changeType(value, type) {
    switch (type) {
        case 'integer': return parseInt(value);
        case 'double': return parseFloat(value);
        default: return value;
    }
}
function getElasticFilter(operator, field, value) {
    switch (operator) {
        case "equal": return { "term": format(field, value) };
        case "not_equal": return { "not": { "term": format(field, value) } };
        case "in": return { "terms": formatArray(field, value) };
        case "not_in": return { "not": { "terms": formatArray(field, value) } };
        case "less": return { "range": format(field, { 'lt': value}) };
        case "less_or_equal":return { "range": format(field, { 'lte': value}) };
        case "greater": return { "range": format(field, { 'gt': value}) };
        case "greater_or_equal": return { "range": format(field, { 'gte': value }) };
        case "between": return { "range": format(field, { 'gte': value[0], 'lte': value[1] }) };
        case "not_between": return { "range": format(field, { 'lt': value[0], 'gt': value[1] }) };
        case "begins_with": return { "prefix": format(field, value) };
        case "not_begins_with": return {"not":{"prefix": format(field, value) }};
        case "contains": return { "regexp": format(field, '.*' + escapeRegExp(value) + '.*') };
        case "not_contains": return { "not": { "regexp": format(field, '.*' + escapeRegExp(value) + '.*') } };
        case "ends_with": return { "regexp": format(field, '.*' + escapeRegExp(value)) };
        case "not_ends_with": return { "not": { "regexp": format(field, '.*' + escapeRegExp(value)) } };
        case "is_empty": return { "term": format(field, "") };
        case "is_not_empty": return { "not": { "term": format(field, "") } };
        case "is_null": return { "term": format(field, null) };
        case "is_not_null": return { "not": { "term": format(field, null) } };
        default: return {};
    }
}

How to integrate it with Query Builder plugin?