Java tutorial
/* * 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. */ package gobblin.runtime.listeners; import org.apache.commons.mail.EmailException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import gobblin.configuration.ConfigurationKeys; import gobblin.runtime.JobContext; import gobblin.runtime.JobState; import gobblin.util.EmailUtils; /** * An implementation of {@link JobListener} that sends email notifications. * * @author Yinan Li */ public class EmailNotificationJobListener extends AbstractJobListener { private static final Logger LOGGER = LoggerFactory.getLogger(EmailNotificationJobListener.class); @Override public void onJobCompletion(JobContext jobContext) { JobState jobState = jobContext.getJobState(); boolean alertEmailEnabled = Boolean .valueOf(jobState.getProp(ConfigurationKeys.ALERT_EMAIL_ENABLED_KEY, Boolean.toString(false))); boolean notificationEmailEnabled = Boolean.valueOf( jobState.getProp(ConfigurationKeys.NOTIFICATION_EMAIL_ENABLED_KEY, Boolean.toString(false))); // Send out alert email if the maximum number of consecutive failures is reached if (jobState.getState() == JobState.RunningState.FAILED) { int failures = jobState.getPropAsInt(ConfigurationKeys.JOB_FAILURES_KEY, 0); int maxFailures = jobState.getPropAsInt(ConfigurationKeys.JOB_MAX_FAILURES_KEY, ConfigurationKeys.DEFAULT_JOB_MAX_FAILURES); if (alertEmailEnabled && failures >= maxFailures) { try { EmailUtils.sendJobFailureAlertEmail(jobState.getJobName(), jobState.toString(), failures, jobState); } catch (EmailException ee) { LOGGER.error("Failed to send job failure alert email for job " + jobState.getJobId(), ee); } return; } } if (notificationEmailEnabled) { try { EmailUtils.sendJobCompletionEmail(jobState.getJobId(), jobState.toString(), jobState.getState().toString(), jobState); } catch (EmailException ee) { LOGGER.error("Failed to send job completion notification email for job " + jobState.getJobId(), ee); } } } @Override public void onJobCancellation(JobContext jobContext) { JobState jobState = jobContext.getJobState(); boolean notificationEmailEnabled = Boolean.valueOf( jobState.getProp(ConfigurationKeys.NOTIFICATION_EMAIL_ENABLED_KEY, Boolean.toString(false))); if (notificationEmailEnabled) { try { EmailUtils.sendJobCancellationEmail(jobState.getJobId(), jobState.toString(), jobState); } catch (EmailException ee) { LOGGER.error("Failed to send job cancellation notification email for job " + jobState.getJobId(), ee); } } } }