package ca.uhn.fhir.jpa.search;
/*-
* #%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 java.util.List;
import org.hl7.fhir.instance.model.api.IBaseResource;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.support.TransactionCallback;
import org.springframework.transaction.support.TransactionTemplate;
import ca.uhn.fhir.jpa.dao.IDao;
import ca.uhn.fhir.jpa.dao.ISearchBuilder;
import ca.uhn.fhir.jpa.entity.Search;
import ca.uhn.fhir.jpa.entity.SearchStatusEnum;
import ca.uhn.fhir.jpa.search.SearchCoordinatorSvcImpl.SearchTask;
import ca.uhn.fhir.rest.server.exceptions.InternalErrorException;
public class PersistedJpaSearchFirstPageBundleProvider extends PersistedJpaBundleProvider {
private SearchTask mySearchTask;
private ISearchBuilder mySearchBuilder;
private Search mySearch;
private PlatformTransactionManager myTxManager;
public PersistedJpaSearchFirstPageBundleProvider(Search theSearch, IDao theDao, SearchTask theSearchTask, ISearchBuilder theSearchBuilder, PlatformTransactionManager theTxManager) {
super(theSearch.getUuid(), theDao);
setSearchEntity(theSearch);
mySearchTask = theSearchTask;
mySearchBuilder = theSearchBuilder;
mySearch = theSearch;
myTxManager = theTxManager;
}
@Override
public List<IBaseResource> getResources(int theFromIndex, int theToIndex) {
SearchCoordinatorSvcImpl.verifySearchHasntFailedOrThrowInternalErrorException(mySearch);
final List<Long> pids = mySearchTask.getResourcePids(theFromIndex, theToIndex);
TransactionTemplate txTemplate = new TransactionTemplate(myTxManager);
txTemplate.setPropagationBehavior(TransactionTemplate.PROPAGATION_REQUIRED);
return txTemplate.execute(new TransactionCallback<List<IBaseResource>>() {
@Override
public List<IBaseResource> doInTransaction(TransactionStatus theStatus) {
return toResourceList(mySearchBuilder, pids);
}});
}
@Override
public Integer size() {
mySearchTask.awaitInitialSync();
SearchCoordinatorSvcImpl.verifySearchHasntFailedOrThrowInternalErrorException(mySearch);
return super.size();
}
}