| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 lt = require('long-timeout'); |
| |
| module.exports = function(logger, newTrigger) { |
| |
| |
| var cachedTrigger = { |
| apikey: newTrigger.apikey, |
| name: newTrigger.name, |
| namespace: newTrigger.namespace, |
| payload: newTrigger.payload, |
| minutes: newTrigger.minutes, |
| triggerID: newTrigger.triggerID, |
| uri: newTrigger.uri, |
| monitor: newTrigger.monitor, |
| additionalData: newTrigger.additionalData |
| }; |
| |
| this.scheduleAlarm = function(triggerIdentifier, callback) { |
| var method = 'scheduleIntervalAlarm'; |
| |
| try { |
| return new Promise(function(resolve, reject) { |
| |
| var intervalInMilliSeconds = newTrigger.minutes * 1000 * 60; |
| var startDate = new Date(newTrigger.startDate).getTime(); |
| |
| if (newTrigger.stopDate) { |
| cachedTrigger.stopDate = newTrigger.stopDate; |
| //do not create trigger if the stopDate is in the past |
| if (new Date(newTrigger.stopDate).getTime() <= Date.now()) { |
| return reject('the stop date has expired'); |
| } |
| } |
| |
| if (startDate > Date.now()) { |
| //fire the trigger and start the interval on the start date |
| logger.info(method, triggerIdentifier, 'waiting for start date', startDate); |
| lt.setTimeout(function() { |
| logger.info(method, triggerIdentifier, 'firing first trigger and starting interval upon reaching start date', startDate); |
| var intervalHandle = lt.setInterval(callback, intervalInMilliSeconds); |
| cachedTrigger.intervalHandle = intervalHandle; |
| resolve(cachedTrigger); |
| }, startDate - Date.now()); |
| } |
| else { |
| //fire the trigger and start the interval at the next scheduled interval |
| //as long as the next scheduled interval is not past the stop date |
| var intervalsFired = Math.floor((Date.now() - startDate)/intervalInMilliSeconds); |
| var nextScheduledInterval = startDate + (intervalInMilliSeconds * (intervalsFired + 1)); |
| |
| if (newTrigger.stopDate && nextScheduledInterval > new Date(newTrigger.stopDate).getTime()) { |
| return reject('the next scheduled trigger fire is after the stop date'); |
| } |
| |
| logger.info(method, triggerIdentifier, 'waiting for next interval'); |
| lt.setTimeout(function() { |
| logger.info(method, triggerIdentifier, 'firing trigger and starting interval for trigger past its start date'); |
| var intervalHandle = lt.setInterval(callback, intervalInMilliSeconds); |
| cachedTrigger.intervalHandle = intervalHandle; |
| resolve(cachedTrigger); |
| }, nextScheduledInterval - Date.now()); |
| } |
| |
| }); |
| } catch (err) { |
| return Promise.reject(err); |
| } |
| }; |
| |
| }; |