ca.uhn.hapi.fhir.docs.Copier Maven / Gradle / Ivy
/*-
* #%L
* HAPI FHIR - Docs
* %%
* Copyright (C) 2014 - 2024 Smile CDR, Inc.
* %%
* 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%
*/
package ca.uhn.hapi.fhir.docs;
import ca.uhn.fhir.context.FhirContext;
import ca.uhn.fhir.rest.client.api.IGenericClient;
import ca.uhn.fhir.util.ResourceReferenceInfo;
import org.hl7.fhir.dstu3.model.Bundle;
import org.hl7.fhir.dstu3.model.Resource;
import org.hl7.fhir.instance.model.api.IBaseResource;
import org.hl7.fhir.instance.model.api.IIdType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import static org.apache.commons.lang3.StringUtils.isNotBlank;
@SuppressWarnings("unused")
public class Copier {
private static final Logger ourLog = LoggerFactory.getLogger(Copier.class);
public static void main(String[] args) {
FhirContext ctx = FhirContext.forDstu3();
IGenericClient source = ctx.newRestfulGenericClient("http://localhost:8080/baseDstu3");
IGenericClient target = ctx.newRestfulGenericClient("https://try.smilecdr.com:8000");
List resType = Arrays.asList(
"Patient",
"Organization",
"Encounter",
"Procedure",
"Observation",
"ResearchSubject",
"Specimen",
"ResearchStudy",
"Location",
"Practitioner");
List queued = new ArrayList<>();
Set sent = new HashSet<>();
for (String next : resType) {
copy(ctx, source, target, next, queued, sent);
}
while (queued.size() > 0) {
ourLog.info("Have {} queued resources to deliver", queued.size());
for (IBaseResource nextQueued : new ArrayList<>(queued)) {
String missingRef = null;
for (ResourceReferenceInfo nextRefInfo : ctx.newTerser().getAllResourceReferences(nextQueued)) {
String nextRef = nextRefInfo
.getResourceReference()
.getReferenceElement()
.getValue();
if (isNotBlank(nextRef) && !sent.contains(nextRef)) {
missingRef = nextRef;
}
}
if (missingRef != null) {
ourLog.info(
"Can't send {} because of missing ref {}",
nextQueued.getIdElement().getIdPart(),
missingRef);
continue;
}
IIdType newId = target.update().resource(nextQueued).execute().getId();
ourLog.info(
"Copied resource {} and got ID {}",
nextQueued.getIdElement().getValue(),
newId);
sent.add(nextQueued.getIdElement().toUnqualifiedVersionless().getValue());
queued.remove(nextQueued);
}
}
}
private static void copy(
FhirContext theCtx,
IGenericClient theSource,
IGenericClient theTarget,
String theResType,
List theQueued,
Set theSent) {
Bundle received = theSource
.search()
.forResource(theResType)
.returnBundle(Bundle.class)
.execute();
copy(theCtx, theTarget, theResType, theQueued, theSent, received);
while (received.getLink("next") != null) {
ourLog.info("Fetching next page...");
received = theSource.loadPage().next(received).execute();
copy(theCtx, theTarget, theResType, theQueued, theSent, received);
}
}
private static void copy(
FhirContext theCtx,
IGenericClient theTarget,
String theResType,
List theQueued,
Set theSent,
Bundle theReceived) {
for (Bundle.BundleEntryComponent nextEntry : theReceived.getEntry()) {
Resource nextResource = nextEntry.getResource();
nextResource.setId(
theResType + "/" + "CR-" + nextResource.getIdElement().getIdPart());
boolean haveUnsentReference = false;
for (ResourceReferenceInfo nextRefInfo : theCtx.newTerser().getAllResourceReferences(nextResource)) {
IIdType nextRef = nextRefInfo.getResourceReference().getReferenceElement();
if (nextRef.hasIdPart()) {
String newRef = nextRef.getResourceType() + "/" + "CR-" + nextRef.getIdPart();
ourLog.info("Changing reference {} to {}", nextRef.getValue(), newRef);
nextRefInfo.getResourceReference().setReference(newRef);
if (!theSent.contains(newRef)) {
haveUnsentReference = true;
}
}
}
if (haveUnsentReference) {
ourLog.info("Queueing {} for delivery after", nextResource.getId());
theQueued.add(nextResource);
continue;
}
IIdType newId = theTarget.update().resource(nextResource).execute().getId();
ourLog.info("Copied resource {} and got ID {}", nextResource.getId(), newId);
theSent.add(nextResource.getIdElement().toUnqualifiedVersionless().getValue());
}
}
}
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