CGetSCP.java

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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.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
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package org.dcm4chee.archive.retrieve.scp;

import org.dcm4che3.conf.api.IApplicationEntityCache;
import org.dcm4che3.data.Attributes;
import org.dcm4che3.data.IDWithIssuer;
import org.dcm4che3.data.Tag;
import org.dcm4che3.data.UID;
import org.dcm4che3.net.ApplicationEntity;
import org.dcm4che3.net.Association;
import org.dcm4che3.net.Dimse;
import org.dcm4che3.net.QueryOption;
import org.dcm4che3.net.Status;
import org.dcm4che3.net.pdu.ExtendedNegotiation;
import org.dcm4che3.net.pdu.PresentationContext;
import org.dcm4che3.net.service.BasicCGetSCP;
import org.dcm4che3.net.service.BasicRetrieveTask;
import org.dcm4che3.net.service.CStoreSCU;
import org.dcm4che3.net.service.DicomServiceException;
import org.dcm4che3.net.service.QueryRetrieveLevel;
import org.dcm4che3.net.service.RetrieveTask;
import org.dcm4chee.archive.conf.ArchiveAEExtension;
import org.dcm4chee.archive.conf.QueryParam;
import org.dcm4chee.archive.dto.ArchiveInstanceLocator;
import org.dcm4chee.archive.dto.LocalAssociationParticipant;
import org.dcm4chee.archive.dto.RemoteAssociationParticipant;
import org.dcm4chee.archive.dto.ServiceQualifier;
import org.dcm4chee.archive.dto.ServiceType;
import org.dcm4chee.archive.retrieve.RetrieveContext;
import org.dcm4chee.archive.retrieve.RetrieveService;
import org.dcm4chee.archive.retrieve.impl.RetrieveAfterSendEvent;
import org.dcm4chee.archive.retrieve.impl.RetrieveBeforeSendEvent;
import org.dcm4chee.archive.store.scu.CStoreSCUService;
import org.dcm4chee.archive.store.scu.impl.CStoreSCUImpl;
import org.dcm4chee.task.WeightWatcher;

import javax.enterprise.event.Event;
import javax.inject.Inject;
import java.util.EnumSet;
import java.util.List;

/**
 * @author Gunter Zeilinger <gunterze@gmail.com>
 */
public class CGetSCP extends BasicCGetSCP {

    private final String[] qrLevels;
    private final QueryRetrieveLevel rootLevel;
    private final boolean withoutBulkData;

    @Inject
    private RetrieveService retrieveService;

    @Inject
    private CStoreSCUService storescuService;

    @Inject
    private Event<RetrieveBeforeSendEvent> retrieveBeforeEvent;

    @Inject
    private Event<RetrieveAfterSendEvent> retrieveAfterEvent;

    @Inject
    private IApplicationEntityCache aeCache;

    @Inject
    private WeightWatcher weightWatcher;

    public CGetSCP(String sopClass, String... qrLevels) {
        super(sopClass);
        this.qrLevels = qrLevels;
        this.rootLevel = QueryRetrieveLevel.valueOf(qrLevels[0]);
        this.withoutBulkData = sopClass
                .equals(UID.CompositeInstanceRetrieveWithoutBulkDataGET);
    }

    @Override
    protected RetrieveTask calculateMatches(Association as,
            PresentationContext pc, Attributes rq, Attributes keys)
            throws DicomServiceException {
        QueryRetrieveLevel level = QueryRetrieveLevel.valueOf(keys, qrLevels);
        String cuid = rq.getString(Tag.AffectedSOPClassUID);
        ExtendedNegotiation extNeg = as.getAAssociateAC().getExtNegotiationFor(
                cuid);
        EnumSet<QueryOption> queryOpts = QueryOption.toOptions(extNeg);
        boolean relational = queryOpts.contains(QueryOption.RELATIONAL);
        level.validateRetrieveKeys(keys, rootLevel, relational);

        ApplicationEntity ae = as.getApplicationEntity();
        ArchiveAEExtension aeExt = ae.getAEExtension(ArchiveAEExtension.class);
        try {
            QueryParam queryParam = aeExt.getQueryParam(queryOpts,
                    accessControlIDs());
            ApplicationEntity remoteAE = aeCache.get(as.getRemoteAET());
            RetrieveContext context = retrieveService.createRetrieveContext(
                    retrieveService, as.getRemoteAET(), aeExt);
            context.setDestinationAE(remoteAE);
            IDWithIssuer[] pids = retrieveService
                    .queryPatientIDs(context, keys);
            List<ArchiveInstanceLocator> matches = retrieveService
                    .calculateMatches(pids, keys, queryParam, withoutBulkData);
            if (matches.isEmpty())
                return null;

            CStoreSCU<ArchiveInstanceLocator> cstorescu = new CStoreSCUImpl(ae,
                    remoteAE, ServiceType.GETSERVICE, storescuService, weightWatcher);
            BasicRetrieveTask<ArchiveInstanceLocator> retrieveTask = new 
                    BasicRetrieveTask<ArchiveInstanceLocator>(
                    Dimse.C_GET_RQ, as, pc, rq, matches, as, cstorescu);
            retrieveTask.setSendPendingRSP(aeExt.isSendPendingCGet());

            retrieveBeforeEvent.select(new ServiceQualifier(ServiceType.GETSERVICE))
            .fire(new RetrieveBeforeSendEvent(
                    new RemoteAssociationParticipant(as),
                    new LocalAssociationParticipant(as),
                    new RemoteAssociationParticipant(as), ae.getDevice(),
                    matches));

            return retrieveTask;
        } catch (Exception e) {
            throw new DicomServiceException(
                    Status.UnableToCalculateNumberOfMatches, e);
        }
    }

    private String[] accessControlIDs() {
        // TODO Auto-generated method stub
        return null;
    }

}