Vireo Engine

Vireo is an HL7 engine simulator to generate random and configurable data for testing purposes. All data generated is simulated and faked.

Node.js Version

Minimum: v6.0.0

Setup

npm install

Tests

RethinkDB must be installed for grunt to successfully run.

grunt           // runs eslint & mochaTest
grunt lint      // runs eslint only
grunt test      // runs mocha tests only

Usage

Consumptions

var vireo = require('../vireo-engine');

let connectionOptions = {
    host: 'localhost',
    port: 28015,
    db: 'vireotests',
    user: 'admin',
    password: ''
};

let adt = new vireo.Engines.ADT({
    speed: 'Medium',
    mode: 'Simulated',
    driverType: 'rethink',
    connectionOptions: connectionOptions
}, {
    receivingApplication: 'MatthsApp',
    receivingFacility: 'Matth',
    version: '2.2.2'
});

adt.on('ready', function () {
    adt.on('message', function (message) {
        console.log(message);
        console.log();
    });

    adt.consume();
});

Get Random messages

var vireo = require('../vireo-engine');

let adt = new vireo.Engines.ADT({
    receivingApplication: 'MatthsApp',
    receivingFacility: 'Matth',
    version: '2.2.2'
});

let message = adt.getRandom();
console.log(message);

API

Drivers

Drivers are used for storing simulation data for later use. Available drivers:

• Memory - Does not persist after the proces has stopped.
• RethinkDB
• TODO MongoDB

Engines

Options:

• speed - Speed to wait before sending a new message
  • Slow - 10-20s
  • Medium - 2500-5000ms
  • Fast - 500-1750ms
  • LoadTest - 10ms
  • Custom (object):
    • min: Minimum millseconds between messages (default 1)
    • max: Maximum millseconds between messages (default 10)
• Mode
  • Simulated - Acts as a real system with specific sequence of messages against existing and new patients
  • Random - Randomly sends messages
  • maximumActivePatients - Maximum active visit records in a hospital

ADT

Generates various ADT events. Not all are supported.

Options:

• newPatientProbability: Percent change of creating a new patient instead of using an existing one

Order

• TODO