RejectedObjectCleanUpService.java

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 * the License. You may obtain a copy of the License at
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 *
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 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is part of dcm4che, an implementation of DICOM(TM) in
 * Java(TM), hosted at https://github.com/gunterze/dcm4che.
 *
 * The Initial Developer of the Original Code is
 * Agfa Healthcare.
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 * the Initial Developer. All Rights Reserved.
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package org.dcm4chee.archive.iocm.impl;

import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Date;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;

import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.event.Observes;
import javax.inject.Inject;

import org.dcm4che3.net.Device;
import org.dcm4chee.archive.ArchiveServiceReloaded;
import org.dcm4chee.archive.ArchiveServiceStarted;
import org.dcm4chee.archive.ArchiveServiceStopped;
import org.dcm4chee.archive.code.CodeService;
import org.dcm4chee.archive.conf.ArchiveDeviceExtension;
import org.dcm4chee.archive.conf.RejectionParam;
import org.dcm4chee.archive.entity.Code;
import org.dcm4chee.archive.entity.Instance;
import org.dcm4chee.archive.event.StartStopReloadEvent;
import org.dcm4chee.archive.iocm.RejectionDeleteService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author Hesham Elbadawi <bsdreko@gmail.com>
 */

@ApplicationScoped
public class RejectedObjectCleanUpService {

    private static final Logger LOG = LoggerFactory.getLogger(RejectedObjectCleanUpService.class);

    @Inject
    private RejectionDeleteService rejectionServiceDeleteEJB;

    @Inject
    private CodeService codeService;

    private RejectionParam[] rejectionNotes;

    ScheduledFuture<?> cleanUpResult;
    private boolean running;
    private int maxNumberOfDeletes;
    private Runnable cleanUpTask = new Runnable() {
        @Override
        public void run() {

            ArrayList<Instance> rejectedObjects = new ArrayList<Instance>();
            for(RejectionParam rn : rejectionNotes) {
                if(rn.getRetentionTime() > 0) {
                Date now = new Date();
                Timestamp retentionUnitsAgo;
                retentionUnitsAgo = new Timestamp(now.getTime() - 
                        TimeUnit.MILLISECONDS.convert(
                                rn.getRetentionTime(), rn.getRetentionTimeUnit()));

                rejectedObjects.addAll(rejectionServiceDeleteEJB.findRejectedObjects(
                       codeService.findOrCreate(
                               new Code(rn.getRejectionNoteTitle())), retentionUnitsAgo, getMaxNumberOfDeletes()));
                }
            }
            rejectionServiceDeleteEJB.deleteRejected(cleanUpTask, rejectedObjects);
        }
    };

    /**
     * Initialize procedure.
     */
    public void initializeProcedure(Device device,int poll) {
        ArchiveDeviceExtension arcdevExt = device.getDeviceExtension(ArchiveDeviceExtension.class);
        this.rejectionNotes = arcdevExt.getRejectionParams();
        LOG.info("Initializing Rejected Objects CleanUp Thread");
        cleanUpResult = device.scheduleWithFixedDelay(
                cleanUpTask, 0,poll,TimeUnit.SECONDS);
        setMaxNumberOfDeletes(arcdevExt.getRejectedObjectsCleanUpMaxNumberOfDeletes());
        LOG.info("Initialized Rejected Objects CleanUp Thread with an Interval of {} SECONDS, Maximum files to delete per execution {}",poll,getMaxNumberOfDeletes());
        }
    

    
    public void startCleanUp(@Observes @ArchiveServiceStarted StartStopReloadEvent start) {
        ArchiveDeviceExtension arcDevExt = start.getDevice().getDeviceExtension(ArchiveDeviceExtension.class);
        int poll = arcDevExt.getRejectedObjectsCleanUpPollInterval();
        if(!isRunning() && poll > 0) {
            initializeProcedure(start.getDevice(), poll);
            setRunning(true);
        }

    }

    
    public void stopCleanUp(@Observes @ArchiveServiceStopped StartStopReloadEvent stop) {
        if(isRunning()) {
            cleanUpResult.cancel(false);
            cleanUpResult = null;
            setRunning(false);
            LOG.info("Stopped Rejected Objects CleanUp Thread");
        }
    }

    
    public void reconfigureCleanUp(@Observes @ArchiveServiceReloaded StartStopReloadEvent reload) {
        if(isRunning()) {
            ArchiveDeviceExtension arcDevExt = reload.getDevice().getDeviceExtension(ArchiveDeviceExtension.class);
            int poll = arcDevExt.getRejectedObjectsCleanUpPollInterval();
            cleanUpResult.cancel(false);
            setRunning(false);
            initializeProcedure(reload.getDevice(), poll);
            setRunning(true);
        }

    }

    public boolean isRunning() {
        return running;
    }

    public void setRunning(boolean running) {
        this.running = running;
    }



    public int getMaxNumberOfDeletes() {
        return maxNumberOfDeletes;
    }



    public void setMaxNumberOfDeletes(int maxNumberOfDeletes) {
        this.maxNumberOfDeletes = maxNumberOfDeletes;
    }

}