diffusion/src/node_modules/data/record/recordv2-writer.js

Diffusion JavaScript client

var BufferOutputStream = require('io/buffer-output-stream');
var consts = require('data/record/recordv2-utils');

function write(records, out) {
    if (records.length === 0) {
        return;
    }

    if (records.length === 1 && records[0].length === 0) {
        out.write(consts.RECORD_MU);
        return;
    }

    var recordDelimiter = false;

    records.forEach(function(record) {
        if (recordDelimiter) {
            out.write(consts.RECORD_DELIMITER);
        } else {
            recordDelimiter = true;
        }

        if (record.length === 1 && record[0] === "") {
            out.write(consts.FIELD_MU);
        } else {
            var fieldDelimiter = false;

            record.forEach(function(field) {
                if (fieldDelimiter) {
                    out.write(consts.FIELD_DELIMITER);
                }  else {
                    fieldDelimiter = true;
                }

                if (field !== undefined && field !== null) {
                    out.writeMany(new Buffer(field));
                }
            });
        }
    });
}

module.exports.write = write;
module.exports.toBuffer = function(records) {
    var bos = new BufferOutputStream();

    write(records, bos);

    return bos.getBuffer();
};