package ca.uhn.fhir.jpa.util;
import static org.apache.commons.lang3.StringUtils.isNotBlank;
import org.hl7.fhir.dstu3.model.Subscription;
import org.hl7.fhir.dstu3.model.Subscription.SubscriptionChannelType;
import org.hl7.fhir.dstu3.model.Subscription.SubscriptionStatus;
/*
* #%L
* HAPI FHIR JPA Server
* %%
* Copyright (C) 2014 - 2017 University Health Network
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
import org.hl7.fhir.instance.model.api.IIdType;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import ca.uhn.fhir.jpa.dao.IFhirResourceDao;
import ca.uhn.fhir.jpa.dao.dstu3.FhirResourceDaoSubscriptionDstu3;
import ca.uhn.fhir.model.api.IResource;
import ca.uhn.fhir.model.api.ResourceMetadataKeyEnum;
import ca.uhn.fhir.rest.api.RestOperationTypeEnum;
import ca.uhn.fhir.rest.server.exceptions.ResourceNotFoundException;
import ca.uhn.fhir.rest.server.exceptions.UnprocessableEntityException;
import ca.uhn.fhir.rest.server.interceptor.InterceptorAdapter;
import ca.uhn.fhir.util.CoverageIgnore;
/**
* Interceptor which requires newly created {@link Subscription subscriptions} to be in
* {@link SubscriptionStatus#REQUESTED} state and prevents clients from changing the status.
*/
public class SubscriptionsRequireManualActivationInterceptorDstu3 extends InterceptorAdapter {
public static final ResourceMetadataKeyEnum<Object> ALLOW_STATUS_CHANGE = new ResourceMetadataKeyEnum<Object>(FhirResourceDaoSubscriptionDstu3.class.getName() + "_ALLOW_STATUS_CHANGE") {
private static final long serialVersionUID = 1;
@CoverageIgnore
@Override
public Object get(IResource theResource) {
throw new UnsupportedOperationException();
}
@CoverageIgnore
@Override
public void put(IResource theResource, Object theObject) {
throw new UnsupportedOperationException();
}
};
@Autowired
@Qualifier("mySubscriptionDaoDstu3")
private IFhirResourceDao<Subscription> myDao;
@Override
public void incomingRequestPreHandled(RestOperationTypeEnum theOperation, ActionRequestDetails theProcessedRequest) {
switch (theOperation) {
case CREATE:
case UPDATE:
if (theProcessedRequest.getResourceType().equals("Subscription")) {
verifyStatusOk(theOperation, theProcessedRequest);
}
break;
default:
break;
}
}
public void setDao(IFhirResourceDao<Subscription> theDao) {
myDao = theDao;
}
private void verifyStatusOk(RestOperationTypeEnum theOperation, ActionRequestDetails theRequestDetails) {
Subscription subscription = (Subscription) theRequestDetails.getResource();
SubscriptionStatus newStatus = subscription.getStatusElement().getValue();
if (newStatus == SubscriptionStatus.REQUESTED || newStatus == SubscriptionStatus.OFF) {
return;
}
if (newStatus == null) {
String actualCode = subscription.getStatusElement().getValueAsString();
throw new UnprocessableEntityException("Can not " + theOperation.getCode() + " resource: Subscription.status must be populated" + ((isNotBlank(actualCode)) ? " (invalid value " + actualCode + ")" : ""));
}
IIdType requestId = theRequestDetails.getId();
if (requestId != null && requestId.hasIdPart()) {
Subscription existing;
try {
existing = myDao.read(requestId, null);
SubscriptionStatus existingStatus = existing.getStatusElement().getValue();
if (existingStatus != newStatus) {
verifyActiveStatus(subscription, newStatus, existingStatus);
}
} catch (ResourceNotFoundException e) {
verifyActiveStatus(subscription, newStatus, null);
}
} else {
verifyActiveStatus(subscription, newStatus, null);
}
}
private void verifyActiveStatus(Subscription theSubscription, SubscriptionStatus newStatus, SubscriptionStatus theExistingStatus) {
SubscriptionChannelType channelType = theSubscription.getChannel().getTypeElement().getValue();
if (channelType == null) {
throw new UnprocessableEntityException("Subscription.channel.type must be populated");
}
if (channelType == SubscriptionChannelType.WEBSOCKET) {
return;
}
if (theExistingStatus != null) {
throw new UnprocessableEntityException("Subscription.status can not be changed from " + describeStatus(theExistingStatus) + " to " + describeStatus(newStatus));
}
throw new UnprocessableEntityException("Subscription.status must be '" + SubscriptionStatus.OFF.toCode() + "' or '" + SubscriptionStatus.REQUESTED.toCode() + "' on a newly created subscription");
}
private String describeStatus(SubscriptionStatus existingStatus) {
String existingStatusString;
if (existingStatus != null) {
existingStatusString = '\'' + existingStatus.toCode() + '\'';
} else {
existingStatusString = "null";
}
return existingStatusString;
}
}