MPPSSCUImpl.java

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 * the License. You may obtain a copy of the License at
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 *
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 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * 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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 * See @authors listed below
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package org.dcm4chee.archive.mpps.scu.impl;

import org.dcm4che3.conf.api.IApplicationEntityCache;
import org.dcm4che3.data.Attributes;
import org.dcm4che3.data.UID;
import org.dcm4che3.net.ApplicationEntity;
import org.dcm4che3.net.Association;
import org.dcm4che3.net.Device;
import org.dcm4che3.net.Dimse;
import org.dcm4che3.net.DimseRSP;
import org.dcm4che3.net.Status;
import org.dcm4che3.net.pdu.AAssociateRQ;
import org.dcm4che3.net.pdu.PresentationContext;
import org.dcm4che3.net.service.DicomServiceException;
import org.dcm4chee.archive.mpps.scu.MPPSSCU;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;
import java.io.IOException;

/**
 * @author Gunter Zeilinger <gunterze@gmail.com>
 *
 */
@ApplicationScoped
public class MPPSSCUImpl implements MPPSSCU {

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

    @Inject
    private IApplicationEntityCache aeCache;

    @Inject
    private Device device;

    @Override
    public void sendMPPS(Dimse dimse, String localAET, String remoteAET,
            String iuid, Attributes attrs) throws DicomServiceException {
        ApplicationEntity localAE = device
                .getApplicationEntity(localAET);
        if (localAE == null) {
            LOG.warn("Failed to forward MPPS to {} - no such local AE: {}",
                    remoteAET, localAET);
            return;
        }
        AAssociateRQ aarq = new AAssociateRQ();
        aarq.addPresentationContext(
                        new PresentationContext(
                                1,
                                UID.ModalityPerformedProcedureStepSOPClass,
                                UID.ExplicitVRLittleEndian,
                                UID.ImplicitVRLittleEndian));
        try {
            ApplicationEntity remoteAE = aeCache
                    .findApplicationEntity(remoteAET);
            Association as = localAE.connect(remoteAE, aarq);
            DimseRSP rsp = sendMPPS(as, dimse, iuid, attrs);
            rsp.next();
            try {
                as.release();
            } catch (IOException e) {
                LOG.info("{}: Failed to release Association to {}", as, remoteAET);
            }
        } catch (Exception e) {
            throw new DicomServiceException(Status.UnableToProcess, "Failed to forward MPPS to " + remoteAET, e);
        }
    }

    private DimseRSP sendMPPS(Association as, Dimse dimse, String iuid,
            Attributes attrs) throws IOException, InterruptedException {
        switch (dimse) {
            case N_CREATE_RQ:
                return as.ncreate(
                        UID.ModalityPerformedProcedureStepSOPClass,
                        iuid, attrs, null);
            case N_SET_RQ:
                return as.nset(
                        UID.ModalityPerformedProcedureStepSOPClass,
                        iuid, attrs, null);
            default:
                throw new IllegalArgumentException("dimse: " + dimse);
        }
    }

}