Package ca.uhn.fhir.jpa.search

Class SearchCoordinatorSvcImpl

java.lang.Object

ca.uhn.fhir.jpa.search.SearchCoordinatorSvcImpl

All Implemented Interfaces:

ISearchCoordinatorSvc<JpaPid>

@Component("mySearchCoordinatorSvc")
public class SearchCoordinatorSvcImpl
extends Object
implements ISearchCoordinatorSvc<JpaPid>

Constructor Summary

Constructors

Constructor

Description

SearchCoordinatorSvcImpl(ca.uhn.fhir.context.FhirContext theContext, JpaStorageSettings theStorageSettings, ca.uhn.fhir.interceptor.api.IInterceptorBroadcaster theInterceptorBroadcaster, HapiTransactionService theTxService, ISearchCacheSvc theSearchCacheSvc, ISearchResultCacheSvc theSearchResultCacheSvc, DaoRegistry theDaoRegistry, SearchBuilderFactory<JpaPid> theSearchBuilderFactory, ISynchronousSearchSvc theSynchronousSearchSvc, PersistedJpaBundleProviderFactory thePersistedJpaBundleProviderFactory, ca.uhn.fhir.rest.server.util.ISearchParamRegistry theSearchParamRegistry, SearchStrategyFactory theSearchStrategyFactory, ExceptionService theExceptionSvc, org.springframework.beans.factory.BeanFactory theBeanFactory)

Constructor

Method Summary

Modifier and Type	Method	Description
void	cancelAllActiveSearches()
List<JpaPid>	getResources(String theUuid, int theFrom, int theTo, ca.uhn.fhir.rest.api.server.RequestDetails theRequestDetails, RequestPartitionId theRequestPartitionId)	This method is called by the HTTP client processing thread in order to fetch resources.
Optional<Integer>	getSearchTotal(String theUuid, ca.uhn.fhir.rest.api.server.RequestDetails theRequestDetails, RequestPartitionId theRequestPartitionId)
ca.uhn.fhir.rest.api.server.IBundleProvider	registerSearch(IFhirResourceDao<?> theCallingDao, SearchParameterMap theParams, String theResourceType, ca.uhn.fhir.rest.api.CacheControlDirective theCacheControlDirective, ca.uhn.fhir.rest.api.server.RequestDetails theRequestDetails, RequestPartitionId theRequestPartitionId)
void	setIdToSearchTaskMapForUnitTests(ConcurrentHashMap<String,SearchTask> theIdToSearchTaskMap)
void	setLoadingThrottleForUnitTests(Integer theLoadingThrottleForUnitTests)
void	setNeverUseLocalSearchForUnitTests(boolean theNeverUseLocalSearchForUnitTests)
void	setSyncSizeForUnitTests(int theSyncSize)
static org.springframework.data.domain.Pageable	toPage(int theFromIndex, int theToIndex)	Creates a Pageable using a start and end index

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SearchCoordinatorSvcImpl

public SearchCoordinatorSvcImpl(ca.uhn.fhir.context.FhirContext theContext,
 JpaStorageSettings theStorageSettings,
 ca.uhn.fhir.interceptor.api.IInterceptorBroadcaster theInterceptorBroadcaster,
 HapiTransactionService theTxService,
 ISearchCacheSvc theSearchCacheSvc,
 ISearchResultCacheSvc theSearchResultCacheSvc,
 DaoRegistry theDaoRegistry,
 SearchBuilderFactory<JpaPid> theSearchBuilderFactory,
 ISynchronousSearchSvc theSynchronousSearchSvc,
 PersistedJpaBundleProviderFactory thePersistedJpaBundleProviderFactory,
 ca.uhn.fhir.rest.server.util.ISearchParamRegistry theSearchParamRegistry,
 SearchStrategyFactory theSearchStrategyFactory,
 ExceptionService theExceptionSvc,
 org.springframework.beans.factory.BeanFactory theBeanFactory)

Constructor

Method Details

setIdToSearchTaskMapForUnitTests

public void setIdToSearchTaskMapForUnitTests(ConcurrentHashMap<String,SearchTask> theIdToSearchTaskMap)

setLoadingThrottleForUnitTests

public void setLoadingThrottleForUnitTests(Integer theLoadingThrottleForUnitTests)

setNeverUseLocalSearchForUnitTests

public void setNeverUseLocalSearchForUnitTests(boolean theNeverUseLocalSearchForUnitTests)

setSyncSizeForUnitTests

public void setSyncSizeForUnitTests(int theSyncSize)

cancelAllActiveSearches

public void cancelAllActiveSearches()

Specified by:

cancelAllActiveSearches in interface ISearchCoordinatorSvc<JpaPid>

getResources

public List<JpaPid> getResources(String theUuid,
 int theFrom,
 int theTo,
 @Nullable
 ca.uhn.fhir.rest.api.server.RequestDetails theRequestDetails,
 RequestPartitionId theRequestPartitionId)

This method is called by the HTTP client processing thread in order to fetch resources.

This method must not be called from inside a transaction. The rationale is that the Search entity is treated as a piece of shared state across client threads accessing the same thread, so we need to be able to update that table in a transaction and commit it right away in order for that to work. Examples of needing to do this include if two different clients request the same search and are both paging at the same time, but also includes clients that are hacking the paging links to fetch multiple pages of a search result in parallel. In both cases we need to only let one of them actually activate the search, or we will have conficts. The other thread just needs to wait until the first one actually fetches more results.

Specified by:

getResources in interface ISearchCoordinatorSvc<JpaPid>

registerSearch

public ca.uhn.fhir.rest.api.server.IBundleProvider registerSearch(IFhirResourceDao<?> theCallingDao,
 SearchParameterMap theParams,
 String theResourceType,
 ca.uhn.fhir.rest.api.CacheControlDirective theCacheControlDirective,
 ca.uhn.fhir.rest.api.server.RequestDetails theRequestDetails,
 RequestPartitionId theRequestPartitionId)

Specified by:

registerSearch in interface ISearchCoordinatorSvc<JpaPid>

getSearchTotal

public Optional<Integer> getSearchTotal(String theUuid,
 @Nullable
 ca.uhn.fhir.rest.api.server.RequestDetails theRequestDetails,
 RequestPartitionId theRequestPartitionId)

Specified by:

getSearchTotal in interface ISearchCoordinatorSvc<JpaPid>

toPage

@Nullable
public static org.springframework.data.domain.Pageable toPage(int theFromIndex,
 int theToIndex)

Creates a Pageable using a start and end index