loganalysis/lib/cloud_app.js

Collects stdout and stderr messages from Node.js applications and sends them to the IBM SmartCloud Analytics - Log Analysis service.

/*
 * © Copyright IBM Corp. 2014
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var cloud_app = {};

module.exports = cloud_app;

var env = process.env;

cloud_app.isRunninginCloud = env.VCAP_APPLICATION ? true : false;

if (env.VCAP_APPLICATION) {
  var vcap_application = JSON.parse(env.VCAP_APPLICATION);
  cloud_app.vcap_application = vcap_application;
  cloud_app.application_name = vcap_application.application_name;
  cloud_app.application_version = vcap_application.application_version;
  cloud_app.instance_index = vcap_application.instance_index;
  cloud_app.instance_id = vcap_application.instance_id;
  //cloud_app.app_guid = vcap_application.app_guid;
  cloud_app.bm_source = 'node-js-console';
} else {
  cloud_app.application_name = 'node-js-sample-app';
  cloud_app.instance_id = 'node-js-sample-app-id';
  cloud_app.instance_index = 0;
  //cloud_app.app_guid = 'nodejs-1';
  cloud_app.bm_source = 'node-js-console';
}

if (env.VCAP_SERVICES) {
  cloud_app.vcap_services = JSON.parse(env.VCAP_SERVICES);
}else { //hard coded for local testing
  cloud_app.vcap_services = {};
  cloud_app.vcap_services["MonitoringAndAnalytics"] = [{
    name : "Monitoring and Analytics-ux",
    label: "MonitoringAndAnalytics",
    tags:  ["dev_ops"],
    plan: "Plan for MonitoringAndAnalytics",
    credentials : {
      scala_url : 'https://localhost:9987',
      scala_userid : "unityuser",
      scala_password: "unityuser",
      //WTF! app_guid is in service's VCAP variable? That too in 'credentials'??
      app_guid : 'nodejs-1',
      keyfile : ""
    }
  }];
}

cloud_app.findVCAPServicesByType = function (type) {
  if (!cloud_app.vcap_services) {
    return [];
  }
  var serviceObjects = [];
  for (var name in cloud_app.vcap_services) {
    if (name.indexOf(type) == -1) {
      continue;
    }
    var services = cloud_app.vcap_services[name];
    for (var i = 0, length = services.length; i < length; i++) {
      serviceObjects.push(services[i]);
    }
  }
  return serviceObjects;
};