org.openmrs.module.xdsbrepository.XDSbRepositoryInterfaceActivator.java Source code

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Here is the source code for org.openmrs.module.xdsbrepository.XDSbRepositoryInterfaceActivator.java

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/**
 * The contents of this file are subject to the OpenMRS Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://license.openmrs.org
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
 */
package org.openmrs.module.xdsbrepository;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.dcm4che3.audit.AuditMessages.EventTypeCode;
import org.dcm4chee.xds2.common.audit.XDSAudit;
import org.openmrs.api.AdministrationService;
import org.openmrs.api.context.Context;
import org.openmrs.module.ModuleActivator;
import org.openmrs.module.shr.atna.api.AtnaAuditService;
import org.openmrs.module.shr.atna.configuration.AtnaConfiguration;
import org.openmrs.module.xdsbrepository.tasks.DiscreteDataProcessorTask;
import org.openmrs.scheduler.SchedulerException;
import org.openmrs.scheduler.SchedulerService;
import org.openmrs.scheduler.TaskDefinition;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

/**
 * This class contains the logic that is run every time this module is either started or stopped.
 */
public class XDSbRepositoryInterfaceActivator implements ModuleActivator {

    private ScheduledExecutorService scheduledExecutorService;

    protected Log log = LogFactory.getLog(getClass());

    /**
     * @see ModuleActivator#willRefreshContext()
     */
    public void willRefreshContext() {
        log.info("Refreshing XDSb Repository Interface Module");
    }

    /**
     * @see ModuleActivator#contextRefreshed()
     */
    public void contextRefreshed() {
        log.info("XDSb Repository Interface Module refreshed");
    }

    /**
     * @see ModuleActivator#willStart()
     */
    public void willStart() {
        log.info("Starting XDSb Repository Interface Module");
    }

    /**
     * @see ModuleActivator#started()
     */
    public void started() {
        XDSAudit.setAuditLogger(Context.getService(AtnaAuditService.class).getLogger());
        XDSAudit.logApplicationActivity(AtnaConfiguration.getInstance().getDeviceName(),
                EventTypeCode.ApplicationStart, true);
        log.info("XDSb Repository Interface Module started");

        AdministrationService as = Context.getAdministrationService();
        boolean async = Boolean
                .parseBoolean(as.getGlobalProperty(XDSbServiceConstants.XDS_REPOSITORY_DISCRETE_HANDLER_ASYNC));
        int pollPeriod = Integer.parseInt(Context.getAdministrationService()
                .getGlobalProperty(XDSbServiceConstants.XDS_REPOSITORY_DISCRETE_HANDLER_ASYNC_POLL_PERIOD, "100"));

        if (async) {
            Integer maxTasks = Integer.parseInt(
                    as.getGlobalProperty(XDSbServiceConstants.XDS_REPOSITORY_DISCRETE_HANDLER_ASYNC_MAX_TASKS));
            ScheduledExecutorService scheduledExecutorService = Executors.newScheduledThreadPool(maxTasks);
            // for each thread schedule a recurring task
            for (int i = 0; i < maxTasks; i++) {
                scheduledExecutorService.scheduleWithFixedDelay(new DiscreteDataProcessorTask(), pollPeriod,
                        pollPeriod, TimeUnit.MILLISECONDS);
            }
        }
    }

    /**
     * @see ModuleActivator#willStop()
     */
    public void willStop() {
        log.info("Stopping XDSb Repository Interface Module");

        if (scheduledExecutorService != null) {
            try {
                if (!scheduledExecutorService.awaitTermination(60, TimeUnit.SECONDS)) {
                    // timeout waiting for tasks to complete
                    log.error(
                            "Timeout waiting for discrete data processor tasks to terminate before module shutdown.");
                }
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    /**
     * @see ModuleActivator#stopped()
     */
    public void stopped() {

        XDSAudit.setAuditLogger(Context.getService(AtnaAuditService.class).getLogger());
        XDSAudit.logApplicationActivity(AtnaConfiguration.getInstance().getDeviceName(),
                EventTypeCode.ApplicationStop, true);
        log.info("XDSb Repository Interface Module stopped");
    }

}