photonics.js

var rest = require('restler');
var path = require('path');

exports.type = 'photonics';

var template = {
  piezo: {
    required: true,
    allowed: ['in', 'out']
  },
  waveform: {
    required: true,
    allowed: ['dc', 'sine', 'square', 'triangle', 'ramp']
  },
  frequency: {
    required: true,
    min: 0,
    max: 100000
  },
  amplitude: {
    required: true,
    min: 0,
    max: 10
  },
  offset: {
    required: true,
  },
  disc_speed: {
    required: true,
    min: 0,
    max: 1
  },
  laser_current: {
    required: true,
    min: 0,
    max: 10
  },
  focus_point: {
    required: true,
    allowed: ['collimated', 'disc', 'piezo']
  },
  filter: {
    required: true,
    allowed: [ 'none', '10dB', '5dB', '3dB', '2dB', '1dB' ]
  },
  num_avg: {
    required: true,
    min: 1,
    max: 32
  }
};

var piezo = { 'in': '1', 'out':'0'};
var waveform = { 
  'dc': '0',
  'sine': '1',
  'square': '2',
  'triangle': '3',
  'ramp': '4'
};

var focus_point = {
  'collimated': '0',
  'disc': '1',
  'piezo', '2'
};

var filter = {
  'none': '0',
  '10dB': '1',
  '5dB': '2',
  '3dB': '3',
  '2dB': '4',
  '1dB': '5'
};
  
exports.validate = function(params, cb) {
  for (var param in template) {
    var spec = template[param]
      , supplied = params[param];

    if (spec.required && typeof params[param] === 'undefined') 
      return cb('Required parameter "' + param + '" not present');
    if (spec.allowed && spec.allowed.indexOf(supplied) === -1) 
      return cb('Value "' + supplied + '" not permitted for parameter "' + param + '"');
    if (supplied < spec.min || supplied > spec.max)
      return cb('Value "' + supplied + '" out of range for parameter "' + param + '"');
  }

  cb(null);
}

exports.run = function(params, progress, done) {
  var url = 'http://10.240.132.231:8081/WebService/'

  url += piezo[params.piezo] + '/';
  url += waveform[params.waveform] + '/';
  url += params.frequency + '/';
  url += params.amp + '/';
  url += params.offset + '/';
  url += params.disc_speed + '/';
  url += params.laser_current + '/';
  url += focus_point[params.focus_point] + '/';
  url += filter[params.filter] + '/';
  url += params.num_avg;

  rest.get(url).on('complete', function(result) {
    if (result instanceof Error) {
      done(result);
    } else {
      done(null, result);
    }
  });
};