com.ibm.fhir.persistence.jdbc.cache.FHIRPersistenceJDBCCacheUtil Maven / Gradle / Ivy
/*
* (C) Copyright IBM Corp. 2020, 2021
*
* SPDX-License-Identifier: Apache-2.0
*/
package com.ibm.fhir.persistence.jdbc.cache;
import java.util.Map;
import java.util.stream.Collectors;
import com.ibm.fhir.persistence.exception.FHIRPersistenceException;
import com.ibm.fhir.persistence.jdbc.FHIRPersistenceJDBCCache;
import com.ibm.fhir.persistence.jdbc.dao.api.ICommonTokenValuesCache;
import com.ibm.fhir.persistence.jdbc.dao.api.ParameterDAO;
import com.ibm.fhir.persistence.jdbc.dao.api.ResourceDAO;
/**
* Utilities for operating on the FHIRPersistenceJDBCCache
*/
public class FHIRPersistenceJDBCCacheUtil {
/**
* Factory function to create a new cache instance
* @return
*/
public static FHIRPersistenceJDBCCache create(int codeSystemCacheSize, int tokenValueCacheSize, int canonicalCacheSize) {
ICommonTokenValuesCache rrc = new CommonTokenValuesCacheImpl(codeSystemCacheSize, tokenValueCacheSize, canonicalCacheSize);
return new FHIRPersistenceJDBCCacheImpl(new NameIdCache(), new IdNameCache(), new NameIdCache(), rrc);
}
/**
* Prefill the cache with constants already committed in the database
* @param connection
* @param cache
*/
public static void prefill(ResourceDAO resourceDAO, ParameterDAO parameterDAO, FHIRPersistenceJDBCCache cache) throws FHIRPersistenceException {
Map resourceTypes = resourceDAO.readAllResourceTypeNames();
cache.getResourceTypeCache().prefill(resourceTypes);
Map resourceTypeNames = resourceTypes.entrySet().stream().collect(Collectors.toMap(map -> map.getValue(), map -> map.getKey()));
cache.getResourceTypeNameCache().prefill(resourceTypeNames);
Map parameterNames = parameterDAO.readAllSearchParameterNames();
cache.getParameterNameCache().prefill(parameterNames);
Map codeSystems = parameterDAO.readAllCodeSystems();
cache.getResourceReferenceCache().prefillCodeSystems(codeSystems);
}
}