diffusion/src/node_modules/services/timeseries/range-query-parameters-serialiser.js

Diffusion JavaScript client

var RangeQueryParameters = require('features/time-series/range-query-parameters');
var Point = require('features/time-series/point');
var Range = require('features/time-series/range');

var BEES = require('serialisers/byte-encoded-enum-serialiser');
var Codec = require('io/codec');

function writePoint(output, point) {
    Codec.writeInt64(output, point.value);
    BEES.write(output, point.type);
}

function writeRange(output, range) {
    writePoint(output, range.anchor);
    writePoint(output, range.span);
}

function readPoint(input) {
    var value = Codec.readInt64(input);
    var type = BEES.read(input, Point.Type);

    return new Point(value, type);
}

function readRange(input) {
    var anchor = readPoint(input);
    var span = readPoint(input);

    return new Range(anchor, span);
}

module.exports = {
    read : function(input) {
        var queryType = BEES.read(input, RangeQueryParameters.QueryType);
        var viewRange = readRange(input);
        var editRange = readRange(input);
        var limit = Codec.readInt64(input);

        return new RangeQueryParameters(queryType, viewRange, editRange, limit);
    },
    write : function(output, parameters) {
        BEES.write(output, parameters.queryType);
        writeRange(output, parameters.viewRange);
        writeRange(output, parameters.editRange);
        Codec.writeInt64(output, parameters.limit);
    }
};