/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
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*
* 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.
*
* 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) 2013
* the Initial Developer. All Rights Reserved.
*
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* See @authors listed below
*
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package org.dcm4che3.net;
import java.io.IOException;
import org.dcm4che3.data.UID;
import org.dcm4che3.net.pdu.AAssociateAC;
import org.dcm4che3.net.pdu.AAssociateRJ;
import org.dcm4che3.net.pdu.AAssociateRQ;
import org.dcm4che3.net.pdu.PresentationContext;
import org.dcm4che3.net.pdu.UserIdentityAC;
/**
* @author Gunter Zeilinger <gunterze@gmail.com>
*
*/
public class AssociationHandler {
private UserIdentityNegotiator userIdNegotiator;
public final UserIdentityNegotiator getUserIdNegotiator() {
return userIdNegotiator;
}
public final void setUserIdNegotiator(UserIdentityNegotiator userIdNegotiator) {
this.userIdNegotiator = userIdNegotiator;
}
protected AAssociateAC negotiate(Association as, AAssociateRQ rq)
throws IOException {
if ((rq.getProtocolVersion() & 1) == 0)
throw new AAssociateRJ(AAssociateRJ.RESULT_REJECTED_PERMANENT,
AAssociateRJ.SOURCE_SERVICE_PROVIDER_ACSE,
AAssociateRJ.REASON_PROTOCOL_VERSION_NOT_SUPPORTED);
if (!rq.getApplicationContext().equals(
UID.DICOMApplicationContextName))
throw new AAssociateRJ(AAssociateRJ.RESULT_REJECTED_PERMANENT,
AAssociateRJ.SOURCE_SERVICE_USER,
AAssociateRJ.REASON_APP_CTX_NAME_NOT_SUPPORTED);
ApplicationEntity ae = as.getApplicationEntity();
if (ae == null || !ae.getConnections().contains(as.getConnection())
|| !ae.isInstalled() || !ae.isAssociationAcceptor())
throw new AAssociateRJ(AAssociateRJ.RESULT_REJECTED_PERMANENT,
AAssociateRJ.SOURCE_SERVICE_USER,
AAssociateRJ.REASON_CALLED_AET_NOT_RECOGNIZED);
if (!ae.isAcceptedCallingAETitle(rq.getCallingAET()))
throw new AAssociateRJ(AAssociateRJ.RESULT_REJECTED_PERMANENT,
AAssociateRJ.SOURCE_SERVICE_USER,
AAssociateRJ.REASON_CALLING_AET_NOT_RECOGNIZED);
UserIdentityAC userIdentity = getUserIdNegotiator() != null
? getUserIdNegotiator().negotiate(as, rq.getUserIdentityRQ())
: null;
if (ae.getDevice().isLimitOfOpenAssociationsExceeded())
throw new AAssociateRJ(AAssociateRJ.RESULT_REJECTED_TRANSIENT,
AAssociateRJ.SOURCE_SERVICE_PROVIDER_ACSE,
AAssociateRJ.REASON_LOCAL_LIMIT_EXCEEDED);
return makeAAssociateAC(as, rq, userIdentity);
}
protected AAssociateAC makeAAssociateAC(Association as, AAssociateRQ rq,
UserIdentityAC userIdentity) throws IOException {
AAssociateAC ac = new AAssociateAC();
ac.setCalledAET(rq.getCalledAET());
ac.setCallingAET(rq.getCallingAET());
Connection conn = as.getConnection();
ac.setMaxPDULength(conn.getReceivePDULength());
ac.setMaxOpsInvoked(Association.minZeroAsMax(rq.getMaxOpsInvoked(),
conn.getMaxOpsPerformed()));
ac.setMaxOpsPerformed(Association.minZeroAsMax(rq.getMaxOpsPerformed(),
conn.getMaxOpsInvoked()));
ac.setUserIdentityAC(userIdentity);
ApplicationEntity ae = as.getApplicationEntity();
for (PresentationContext rqpc : rq.getPresentationContexts())
ac.addPresentationContext(ae.negotiate(rq, ac, rqpc));
return ac;
}
protected void onClose(Association as) {
DimseRQHandler tmp = as.getApplicationEntity().getDimseRQHandler();
if (tmp != null)
tmp.onClose(as);
}
}