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io.uhndata.cards.slacknotifications.ScheduledSlackNotifications Maven / Gradle / Ivy

/*
 * 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 io.uhndata.cards.slacknotifications;

import org.apache.commons.lang3.StringUtils;
import org.apache.sling.api.resource.ResourceResolverFactory;
import org.apache.sling.commons.scheduler.ScheduleOptions;
import org.apache.sling.commons.scheduler.Scheduler;
import org.osgi.service.component.ComponentContext;
import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

@Component(immediate = true)
public class ScheduledSlackNotifications
{
    /** Default log. */
    private static final Logger LOGGER = LoggerFactory.getLogger(ScheduledSlackNotifications.class);

    /** Provides access to resources. */
    @Reference
    private ResourceResolverFactory resolverFactory;

    /** The scheduler for rescheduling jobs. */
    @Reference
    private Scheduler scheduler;

    @Activate
    protected void activate(ComponentContext componentContext) throws Exception
    {
        LOGGER.info("ScheduledSlackNotifications activating");
        final String nightlyNotificationsSchedule =
            StringUtils.defaultIfEmpty(System.getenv("NIGHTLY_SLACK_NOTIFICATIONS_SCHEDULE"), "0 0 7 * * ? *");

        ScheduleOptions slackNotificationsOptions = this.scheduler.EXPR(nightlyNotificationsSchedule);
        slackNotificationsOptions.name("slackNightlyNotifications");
        slackNotificationsOptions.canRunConcurrently(true);

        final Runnable slackNotificationsJob = new SlackNotificationsTask(this.resolverFactory);

        try {
            this.scheduler.schedule(slackNotificationsJob, slackNotificationsOptions);
            LOGGER.info("Scheduled SlackNotificationsTask");
        } catch (Exception e) {
            LOGGER.error("SlackNotificationsTask Failed to schedule: {}", e.getMessage(), e);
        }
    }
}




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