Package org.linuxforhealth.fhir.cache

Class CacheManager

java.lang.Object

org.linuxforhealth.fhir.cache.CacheManager

public final class CacheManager
extends java.lang.Object

A class used to create and manage cache instances on a per tenant basis

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CacheManager.Configuration	A configuration class used by the cache manager to create managed cache instances with size and/or time-based eviction policies

Method Summary

Modifier and Type	Method	Description
static <K,V> com.github.benmanes.caffeine.cache.Cache<K,V>	getCache(java.lang.String cacheName)	Get the managed cache with the given name for the current tenant.
static <K,V> com.github.benmanes.caffeine.cache.Cache<K,V>	getCache(java.lang.String cacheName, CacheManager.Configuration configuration)	Get or create the managed cache with the given name for the current tenant.
static <K,V> java.util.Map<K,V>	getCacheAsMap(java.lang.String cacheName)	Get the managed cache with the given name for the current tenant as a thread-safe map.
static <K,V> java.util.Map<K,V>	getCacheAsMap(java.lang.String cacheName, CacheManager.Configuration configuration)	Get or create the managed cache with the given name for the current tenant as a thread-safe map.
java.util.Set<java.lang.String>	getCacheNames()	Get the cache names for the current tenant.
static <K,V> com.github.benmanes.caffeine.cache.stats.CacheStats	getCacheStats(java.lang.String cacheName)	Get a snapshot of the cumulative statistics for the cache with the given name.
static <K,V> void	invalidate(java.lang.String cacheName, K key)	Invalidate the entry with the provided key in the cache with the given name for the current tenant.
static <K,V> void	invalidateAll(java.lang.String cacheName)	Invalidate all entries for the cache with the given name for the current tenant.
static boolean	isManaged(java.lang.String cacheName)	Indicates whether a cache with the given name is managed for the current tenant.
static void	removeCache(java.lang.String cacheName)	Remove the cache with the given name from the cache manager for the current tenant.
static void	reportCacheStats(java.util.logging.Logger cacheClientLogger, java.lang.String cacheName)	Reports the cache statistics in the caffeine cache.

Methods inherited from class java.lang.Object

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

Method Detail

getCacheNames

public java.util.Set<java.lang.String> getCacheNames()

Get the cache names for the current tenant.

Returns:

the cache names

getCache

public static <K,V> com.github.benmanes.caffeine.cache.Cache<K,V> getCache(java.lang.String cacheName)

Get the managed cache with the given name for the current tenant.

Type Parameters:

K - the key type

V - the value type

Parameters:

cacheName - the cache name

Returns:

the managed cache instance with the given name, or null if not exists

getCache

public static <K,V> com.github.benmanes.caffeine.cache.Cache<K,V> getCache(java.lang.String cacheName,
                                                                                       CacheManager.Configuration configuration)

Get or create the managed cache with the given name for the current tenant.

Type Parameters:

K - the key type

V - the value type

Parameters:

cacheName - the cache name

configuration - the configuration

Returns:

a managed cache with the given name for the current tenant

getCacheAsMap

public static <K,V> java.util.Map<K,V> getCacheAsMap(java.lang.String cacheName)

Get the managed cache with the given name for the current tenant as a thread-safe map.

Type Parameters:

K - the key type

V - the value type

Parameters:

cacheName - the cache name

Returns:

the managed cache instance with the given name as a thread-safe map, or null if not exists

getCacheAsMap

public static <K,V> java.util.Map<K,V> getCacheAsMap(java.lang.String cacheName,
                                                                 CacheManager.Configuration configuration)

Get or create the managed cache with the given name for the current tenant as a thread-safe map.

Type Parameters:

K - the key type

V - the value type

Parameters:

cacheName - the cache name

configuration - the configuration

Returns:

a managed cache with the given name for the current tenant as a thread-safe map

getCacheStats

public static <K,V> com.github.benmanes.caffeine.cache.stats.CacheStats getCacheStats(java.lang.String cacheName)

Get a snapshot of the cumulative statistics for the cache with the given name.

Parameters:

cacheName - the cache name

Returns:

a snapshot of the cumulative statistics for the cache with the given name, or null if not exists

invalidate

public static <K,V> void invalidate(java.lang.String cacheName,
                                          K key)

Invalidate the entry with the provided key in the cache with the given name for the current tenant.

Parameters:

cacheName - the cache name

key - the key

invalidateAll

public static <K,V> void invalidateAll(java.lang.String cacheName)

Invalidate all entries for the cache with the given name for the current tenant.

Parameters:

cacheName - the cache name

isManaged

public static boolean isManaged(java.lang.String cacheName)

Indicates whether a cache with the given name is managed for the current tenant.

Parameters:

cacheName - the cache name

Returns:

true if a cache with the given name is managed for the current tenant, false otherwise

removeCache

public static void removeCache(java.lang.String cacheName)

Remove the cache with the given name from the cache manager for the current tenant.

Parameters:

cacheName - the cache name

reportCacheStats

public static void reportCacheStats(java.util.logging.Logger cacheClientLogger,
                                    java.lang.String cacheName)

Reports the cache statistics in the caffeine cache.

Parameters:

cacheClientLogger - used to report the statistics

cacheName - the name of the cache to check