Source: lib/model/Channel.js

var util = require('../util');

/**
 * A Stream object
 * @constructor
 * @augments Container
 * @param {Object} obj An object with the Stream properties
 */
var Channel = function (data, stream) {

  this.dataTypes = require("../data-types");

  this.data = {
    unit: null,
    name: null,
    type: null,
  };

  this.setStream(stream);
  this.exportProperties();
  if(data) this.parseJSON(data);
};
util.extends(Channel, 'Container');

Channel.prototype.setStream = function (stream) {
  this.stream = stream;
  if(stream.getServiceObject)
    this.setServiceObject(stream.getServiceObject());
};

/**
 * @inheritdoc
 */
Channel.prototype.parseJSON = function (data) {

  if(typeof data === 'string') {
    data = {
      type: data
    };
  }

  if(data.name)
    this.data.name = data.name;

  if(data.unit)
    this.data.unit = data.unit;

  if(data.type)
    this.data.type = data.type;

  this.validate();
};
/**
 * @inheritdoc
 */
Channel.prototype.toJSON = function () {

  var json = this.__super__.toJSON.call(this);

  if(!json.unit)
    return json.type;

  return json;
};
/**
 * @inheritdoc
 */
Channel.prototype.validate = function () {

  if(!this.data.name)
    throw new Error("Channel name is required");

  if(!this.data.type)
    throw new Error("Channel type is required");

  if(!this.dataTypes.exists(this.data.type))
    throw new Error("Channel type `"+ this.data.type +"` not supported");

};

module.exports = Channel;