Package ca.uhn.fhir.jpa.dao.mdm

Class MdmExpansionCacheSvc

java.lang.Object

ca.uhn.fhir.jpa.dao.mdm.MdmExpansionCacheSvc

public class MdmExpansionCacheSvc
extends Object

The purpose of this class is to share context between steps of a given GroupBulkExport job. This cache allows you to port state between reader/processor/writer. In this case, we are maintaining a cache of Source Resource ID -> Golden Resource ID, so that we can annotate outgoing resources with their golden owner if applicable.

Constructor Summary

Constructors

Constructor	Description
MdmExpansionCacheSvc()

Method Summary

Modifier and Type	Method	Description
String	buildLogMessage(String message, boolean theAddCacheContentContent)	Builds a log message, potentially enriched with the cache content.
String	getGoldenResourceId(String theSourceId)	Lookup a given resource's golden resource ID in the cache.
boolean	hasBeenPopulated()	Since this cache is used at @JobScope, we can skip a whole whack of expansions happening by simply checking if one of our child steps has populated the cache yet.
void	setCacheContents(Map<String,String> theSourceResourceIdToGoldenResourceIdMap)	Populate the cache

Methods inherited from class java.lang.Object

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

Constructor Details

MdmExpansionCacheSvc

public MdmExpansionCacheSvc()

Method Details

getGoldenResourceId

public String getGoldenResourceId(String theSourceId)

Lookup a given resource's golden resource ID in the cache. Note that if you pass this function the resource ID of a golden resource, it will just return itself.

Parameters:

theSourceId - the resource ID of the source resource ,e.g. PAT123

Returns:

the resource ID of the associated golden resource.

buildLogMessage

public String buildLogMessage(String message,
 boolean theAddCacheContentContent)

Builds a log message, potentially enriched with the cache content.

Parameters:

message - The log message

theAddCacheContentContent - If true, will annotate the log message with the current cache contents.

Returns:

a built log message, which may include the cache content.

setCacheContents

public void setCacheContents(Map<String,String> theSourceResourceIdToGoldenResourceIdMap)

Populate the cache

Parameters:

theSourceResourceIdToGoldenResourceIdMap - the source ID -> golden ID map to populate the cache with.

hasBeenPopulated

public boolean hasBeenPopulated()

Since this cache is used at @JobScope, we can skip a whole whack of expansions happening by simply checking if one of our child steps has populated the cache yet. .