bpm-engine/dist/lib/loadPlugins.js

Business Process Management Engine for JavaScript

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _keys = require('babel-runtime/core-js/object/keys');

var _keys2 = _interopRequireDefault(_keys);

var _debug = require('./debug');

var _debug2 = _interopRequireDefault(_debug);

var _Plugins = require('./Plugins');

var _Plugins2 = _interopRequireDefault(_Plugins);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

const Element = _Plugins2.default.Element,
      UserTask = _Plugins2.default.UserTask,
      ServiceTask = _Plugins2.default.ServiceTask;


const log = (0, _debug2.default)('plugin');

const scopePlugins = plugins => {
  const scopedPlugins = {
    userTask: {},
    serviceTask: {},
    element: {}
  };

  (0, _keys2.default)(plugins).forEach(key => {
    if (plugins[key] instanceof Element) {
      scopedPlugins.element[key] = plugins[key];
    }
    if (plugins[key] instanceof UserTask) {
      scopedPlugins.userTask[key] = plugins[key];
    }
    if (plugins[key] instanceof ServiceTask) {
      scopedPlugins.serviceTask[key] = plugins[key];
    }
  });

  return scopedPlugins;
};

exports.default = plugins => scopePlugins(plugins.map(plugin => {
  /* istanbul ignore next */
  if (typeof plugin === 'string') {
    log(`Plugin "${plugin}" will be required or searched on the global window`);
    const PluginConstructor = typeof window === 'undefined' ? require(`bpm-engine-plugin-${plugin}`) : window.BPMEngine.Plugins[plugin];

    if (!PluginConstructor) {
      throw new Error(`Unable to load plugin "${plugin}"`);
    }

    log(`Instantiating plugin "${plugin}"`);
    return new PluginConstructor();
  }

  return plugin;
}));
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