com.tangosol.net.ExtensibleConfigurableCacheFactory Maven / Gradle / Ivy
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/*
* Copyright (c) 2000, 2022, Oracle and/or its affiliates.
*
* Licensed under the Universal Permissive License v 1.0 as shown at
* https://oss.oracle.com/licenses/upl.
*/
package com.tangosol.net;
import com.oracle.coherence.common.base.Disposable;
import com.oracle.coherence.common.base.Lockable;
import com.oracle.coherence.common.util.Options;
import com.tangosol.coherence.config.CacheConfig;
import com.tangosol.coherence.config.CacheMapping;
import com.tangosol.coherence.config.ResourceMapping;
import com.tangosol.coherence.config.ResourceMappingRegistry;
import com.tangosol.coherence.config.ParameterList;
import com.tangosol.coherence.config.ParameterMacroExpressionParser;
import com.tangosol.coherence.config.ResolvableParameterList;
import com.tangosol.coherence.config.ServiceSchemeRegistry;
import com.tangosol.coherence.config.TopicMapping;
import com.tangosol.coherence.config.builder.MapBuilder;
import com.tangosol.coherence.config.builder.NamedCacheBuilder;
import com.tangosol.coherence.config.builder.NamedCollectionBuilder;
import com.tangosol.coherence.config.builder.ParameterizedBuilder;
import com.tangosol.coherence.config.builder.ParameterizedBuilderRegistry;
import com.tangosol.coherence.config.builder.ServiceBuilder;
import com.tangosol.coherence.config.builder.SubscriberGroupBuilder;
import com.tangosol.coherence.config.scheme.AbstractCompositeScheme;
import com.tangosol.coherence.config.scheme.AbstractLocalCachingScheme;
import com.tangosol.coherence.config.scheme.AbstractServiceScheme;
import com.tangosol.coherence.config.scheme.BackingMapScheme;
import com.tangosol.coherence.config.scheme.BackupMapConfig;
import com.tangosol.coherence.config.scheme.CachingScheme;
import com.tangosol.coherence.config.scheme.ClusteredCachingScheme;
import com.tangosol.coherence.config.scheme.DistributedScheme;
import com.tangosol.coherence.config.scheme.ExternalScheme;
import com.tangosol.coherence.config.scheme.FlashJournalScheme;
import com.tangosol.coherence.config.scheme.ObservableCachingScheme;
import com.tangosol.coherence.config.scheme.PagedExternalScheme;
import com.tangosol.coherence.config.scheme.ReadWriteBackingMapScheme;
import com.tangosol.coherence.config.scheme.Scheme;
import com.tangosol.coherence.config.scheme.ServiceScheme;
import com.tangosol.coherence.config.scheme.TransactionalScheme;
import com.tangosol.coherence.config.xml.CacheConfigNamespaceHandler;
import com.tangosol.config.expression.ChainedParameterResolver;
import com.tangosol.config.expression.Expression;
import com.tangosol.config.expression.LiteralExpression;
import com.tangosol.config.expression.Parameter;
import com.tangosol.config.expression.ParameterResolver;
import com.tangosol.config.expression.ScopedParameterResolver;
import com.tangosol.config.expression.SystemEnvironmentParameterResolver;
import com.tangosol.config.expression.SystemPropertyParameterResolver;
import com.tangosol.config.xml.DocumentProcessor;
import com.tangosol.io.BinaryStore;
import com.tangosol.io.ClassLoaderAware;
import com.tangosol.io.nio.BinaryMap;
import com.tangosol.io.nio.ByteBufferManager;
import com.tangosol.io.nio.DirectBufferManager;
import com.tangosol.io.nio.MappedBufferManager;
import com.tangosol.net.cache.CacheLoader;
import com.tangosol.net.cache.LocalCache;
import com.tangosol.net.cache.MapCacheStore;
import com.tangosol.net.cache.NearCache;
import com.tangosol.net.cache.OverflowMap;
import com.tangosol.net.cache.ReadWriteBackingMap;
import com.tangosol.net.cache.SerializationMap;
import com.tangosol.net.cache.SimpleSerializationMap;
import com.tangosol.net.cache.TypeAssertion;
import com.tangosol.net.events.EventDispatcherRegistry;
import com.tangosol.net.events.InterceptorRegistry;
import com.tangosol.net.events.internal.ConfigurableCacheFactoryDispatcher;
import com.tangosol.net.events.internal.InterceptorManager;
import com.tangosol.net.events.internal.Registry;
import com.tangosol.net.internal.ScopedCacheReferenceStore;
import com.tangosol.net.internal.ScopedReferenceStore;
import com.tangosol.net.management.MBeanHelper;
import com.tangosol.net.partition.ObservableSplittingBackingCache;
import com.tangosol.net.partition.ObservableSplittingBackingMap;
import com.tangosol.net.security.DoAsAction;
import com.tangosol.net.security.Security;
import com.tangosol.net.security.StorageAccessAuthorizer;
import com.tangosol.net.topic.NamedTopic;
import com.tangosol.net.topic.Subscriber;
import com.tangosol.run.xml.XmlDocumentReference;
import com.tangosol.run.xml.XmlElement;
import com.tangosol.run.xml.XmlHelper;
import com.tangosol.util.Base;
import com.tangosol.util.ClassHelper;
import com.tangosol.util.MapListener;
import com.tangosol.util.MapSet;
import com.tangosol.util.NullImplementation;
import com.tangosol.util.ObservableMap;
import com.tangosol.util.ResourceRegistry;
import com.tangosol.util.SafeHashMap;
import com.tangosol.util.SimpleResourceRegistry;
import java.io.File;
import java.net.URI;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.IdentityHashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;
import java.util.WeakHashMap;
/**
* ExtensibleConfigurableCacheFactory provides a facility to access caches
* declared in a "coherence-cache-config.xsd" compliant configuration file.
*
* It is strongly recommended that developers get a ConfigurableCacheFactory instance via
* CacheFactory.getCacheFactoryBuilder().getConfigurableCacheFactory(), rather than
* instantiate an ExtensibleConfigurableCacheFactory instance directly.
*
* There are various ways of using this factory:
*
* ExtensibleConfigurableCacheFactory.Dependencies deps =
* ExtensibleConfigurableCacheFactory.DependenciesHelper.newInstance("my-cache-config.xml");
* ExtensibleConfigurableCacheFactory factory =
* new ExtensibleConfigurableCacheFactory(deps);
* ...
* ClassLoader loader = getClass().getClassLoader();
* NamedCache cacheOne = factory.ensureCache("one", loader);
* NamedCache cacheTwo = factory.ensureCache("two", loader);
*
*
* Another option is using the static version of the "ensureCache" call:
*
* ClassLoader loader = getClass().getClassLoader();
* NamedCache cacheOne = CacheFactory.getCache("one", loader);
*
* which uses an instance of ConfigurableCacheFactory obtained by
* {@link CacheFactory#getConfigurableCacheFactory()}.
*
* @see CacheFactory#getCache(String, ClassLoader, NamedCache.Option...)
*
* @author gg 2003.05.26
* @author pfm 2012.12.19
*
* @since Coherence 12.1.2
*/
public class ExtensibleConfigurableCacheFactory
extends Base
implements ConfigurableCacheFactory
{
// ----- constructors ---------------------------------------------------
/**
* Constructs an {@link ExtensibleConfigurableCacheFactory} using
* the specified {@link Dependencies}.
*
* @param dependencies the {@link Dependencies}
*/
public ExtensibleConfigurableCacheFactory(Dependencies dependencies)
{
// initialize dependency-based state
f_cacheConfig = dependencies.getCacheConfig();
m_loader = dependencies.getContextClassLoader();
f_registry = dependencies.getResourceRegistry();
// initialize non-dependency-based state
f_store = new ScopedCacheReferenceStore();
f_storeTopics = new ScopedReferenceStore<>(NamedTopic.class, NamedTopic::isActive,
NamedTopic::getName, NamedTopic::getService);
m_fActivated = false;
m_fDisposed = false;
// acquire the legacy xml config from the resource registry
// (this is used by legacy parts of coherence)
f_xmlLegacyConfig = (XmlElement) f_registry.getResource(XmlElement.class, "legacy-cache-config").clone();
// perform final internal configuration
// (note: this behavior may be overridden by a sub-class)
configure();
// register the lifecycle event dispatcher as all previous parsing
// was successful
f_dispatcher = new ConfigurableCacheFactoryDispatcher();
EventDispatcherRegistry dispatcherReg = f_registry.getResource(EventDispatcherRegistry.class);
if (dispatcherReg != null)
{
dispatcherReg.registerEventDispatcher(f_dispatcher);
}
CacheFactory.log("Created cache factory " + this.getClass().getName(), CacheFactory.LOG_INFO);
}
// ----- ConfigurableCacheFactory interface -----------------------------
@Override
public NamedCache ensureCache(String sCacheName,
ClassLoader loader,
NamedCache.Option... options)
{
assertNotDisposed();
Base.checkNotEmpty(sCacheName, "CacheName");
return System.getSecurityManager() == null
? ensureCacheInternal(sCacheName, loader, options)
: AccessController.doPrivileged(new DoAsAction<>(
() -> ensureCacheInternal(sCacheName, loader, options)));
}
/**
* Implementation of {@link #ensureTypedCache(String, ClassLoader, TypeAssertion)}
*/
private NamedCache ensureCacheInternal(String sCacheName,
ClassLoader loader,
NamedCache.Option... options)
{
loader = ensureClassLoader(loader);
Options optsNamedCache = Options.from(NamedCache.Option.class, options);
// acquire the type assertion option
// (when non-defined the @Options.Default will be used which is raw-types)
TypeAssertion assertion = optsNamedCache.get(TypeAssertion.class);
NamedCache cache;
CachingScheme scheme;
ParameterResolver resolver;
MapBuilder.Dependencies dependencies;
while (true)
{
// find the cache mapping for the cache
CacheMapping mapping = f_cacheConfig.getMappingRegistry().findMapping(sCacheName, CacheMapping.class);
if (mapping == null)
{
throw new IllegalArgumentException("ensureCache cannot find a mapping for cache " + sCacheName);
}
cache = f_store.getCache(sCacheName, loader);
if (cache != null && cache.isActive())
{
// the common path; the cache reference is active and reusable
checkPermission(cache);
// always assert the safety of the types according to the specified assertion
// (as they may change between calls to ensureCache)
assertion.assertTypeSafety(sCacheName, mapping, /*fLog*/ false);
return cache;
}
if (cache != null && !cache.isDestroyed() && !cache.isReleased())
{
try
{
// this can only indicate that the cache was "disconnected" due to a
// network failure or an abnormal cache service termination;
// the underlying cache service will “restart" during the very next call
// to any of the NamedCache API method (see COH-15083 for details)
checkPermission(cache);
// always assert the safety of the types according to the specified assertion
// (as they may change between calls to ensureCache).
assertion.assertTypeSafety(sCacheName, mapping, /*fLog*/ false);
return cache;
}
catch (IllegalStateException e)
{
// Fail to access due to cluster or service being explicitly stopped or shutdown
// and not properly restarted.
// Remove this cache and the process of returning a new one ensures all services needed by cache.
f_store.releaseCache(cache, loader);
}
}
// Always assert the safety of the types according to the specified assertion.
// Only log warning once if mismatch between cache config specified types and
// runtime type assertion where one uses raw types.
assertion.assertTypeSafety(sCacheName, mapping, /*fLog*/ true);
// find the scheme for the cache
ServiceScheme serviceScheme = f_cacheConfig.findSchemeBySchemeName(mapping.getSchemeName());
if (serviceScheme == null)
{
throw new IllegalArgumentException("ensureCache cannot find service scheme "
+ mapping.getSchemeName() + " for cache " + sCacheName);
}
else if (!(serviceScheme instanceof CachingScheme))
{
throw new IllegalArgumentException("The scheme " + mapping.getSchemeName()
+ " for cache " + sCacheName + " is not a CachingScheme");
}
scheme = (CachingScheme) serviceScheme;
f_store.clearInactiveCacheRefs();
// create (realize) the cache and add the map listener if applicable
NamedCacheBuilder bldrCache = scheme;
Base.checkNotNull(bldrCache, "NamedCacheBuilder");
resolver = getParameterResolver(sCacheName, CacheMapping.class, loader, null);
dependencies = new MapBuilder.Dependencies(this, null, loader,
sCacheName, scheme.getServiceType());
cache = bldrCache.realizeCache(resolver, dependencies);
// TODO: The knowledge of transactional cache is left out of ScopedReferenceStore. We should re-consider.
if (scheme instanceof TransactionalScheme)
{
break;
}
if (f_store.putCacheIfAbsent(cache, loader) == null)
{
break;
}
}
if (scheme instanceof ObservableCachingScheme)
{
ObservableCachingScheme schemeObservable = (ObservableCachingScheme)scheme;
schemeObservable.establishMapListeners(cache, resolver, dependencies);
}
if (cache instanceof NearCache)
{
((NearCache) cache).registerMBean();
}
return cache;
}
/**
* {@inheritDoc}
*/
@Override
public void releaseCache(NamedCache cache)
{
releaseCache(cache, /* fDestroy */ false);
}
/**
* {@inheritDoc}
*/
@Override
public void destroyCache(NamedCache cache)
{
releaseCache(cache, /* fDestroy */ true);
}
/**
* {@inheritDoc}
*/
@Override
public NamedTopic ensureTopic(String sName, ClassLoader loader, NamedTopic.Option... options)
{
assertNotDisposed();
Base.checkNotEmpty(sName, "name");
PrivilegedAction action =
() -> ensureCollectionInternal(sName, NamedTopic.class, loader, f_storeTopics, options);
return AccessController.doPrivileged(new DoAsAction<>(action));
}
/**
* Ensure an Object-based collection for the given name.
*
* @param sName the name of the collection
* @param clsCollection the type of the values in the collection
* @param loader the {@link ClassLoader} to use
* @param store the {@link ScopedReferenceStore} that holds collection references
* @param options the options to use to configure the collection
*
* @param the type of the collection
* @param the type of the values in the collection
*
* @return an Object-based collection for the given name
*/
private C ensureCollectionInternal(String sName, Class clsCollection, ClassLoader loader,
ScopedReferenceStore store, NamedCollection.Option... options)
{
loader = ensureClassLoader(loader);
Options optsNamedTopic = Options.from(NamedTopic.Option.class, options);
ValueTypeAssertion constraint = optsNamedTopic.get(ValueTypeAssertion.class);
C collection;
ParameterResolver resolver;
MapBuilder.Dependencies dependencies;
while (true)
{
// find the topic mapping for the collection
TopicMapping mapping = f_cacheConfig.getMappingRegistry().findMapping(sName, TopicMapping.class);
if (mapping == null)
{
throw new IllegalArgumentException(String.format("Cannot find a mapping for %s", sName));
}
// always assert the safety of the types according to the specified assertion
// (as they may change between calls to ensureCache)
constraint.assertTypeSafety(sName, mapping);
C col = store.get(sName, loader);
if (col != null && col.isActive())
{
if (clsCollection.isAssignableFrom(col.getClass()))
{
checkPermission(col);
return col;
}
else
{
String sMsg = String.format(
"A Collection already exist for name '%s' but is of type %s when requested type is %s",
sName, col.getClass(), clsCollection);
throw new IllegalStateException(sMsg);
}
}
// find the scheme for the collection
ServiceScheme serviceScheme = f_cacheConfig.findSchemeBySchemeName(mapping.getSchemeName());
if (serviceScheme == null)
{
String sMsg = String.format("ensureCollection cannot find service scheme %s for mapping %s",
mapping.getSchemeName(), sName);
throw new IllegalArgumentException(sMsg);
}
else if (!(serviceScheme instanceof NamedCollectionBuilder))
{
String sMsg = String.format("The scheme %s for collection %s cannot build a %s",
mapping.getSchemeName(), sName, clsCollection);
throw new IllegalArgumentException(sMsg);
}
// there are instances of sibling caches for different
// class loaders; check for and clear invalid references
Collection colHashCode = store.clearInactiveRefs(sName);
if (colHashCode != null)
{
for (Integer nHashCode : colHashCode)
{
MBeanHelper.unregisterCacheMBean(sName, "tier=front,loader=" + nHashCode);
}
}
// create (realize) the collection
NamedCollectionBuilder bldrCollection = (NamedCollectionBuilder) serviceScheme;
Base.checkNotNull(bldrCollection, "NamedCollectionBuilder");
if (!bldrCollection.realizes(clsCollection))
{
String sMsg = String.format("The scheme '%s' is defined as a %s and cannot build an instance of a %s",
sName, bldrCollection.getClass().getSimpleName(),
clsCollection.getSimpleName());
throw new IllegalStateException(sMsg);
}
resolver = getParameterResolver(sName, TopicMapping.class, loader, null);
dependencies = new MapBuilder.Dependencies(this, null, loader, sName,
serviceScheme.getServiceType());
collection = bldrCollection.realize(constraint, resolver, dependencies);
for (SubscriberGroupBuilder builder : mapping.getSubscriberGroupBuilders())
{
Subscriber s = builder.realize((NamedTopic) collection, resolver);
s.close();
}
if (store.putIfAbsent(collection, loader) == null)
{
break;
}
}
return collection;
}
/**
* {@inheritDoc}
*/
@Override
public Service ensureService(String sServiceName)
{
assertNotDisposed();
// find the first service in the caching schemes that matches the
// service name
ServiceScheme scheme = f_cacheConfig.findSchemeByServiceName(sServiceName);
if (scheme == null)
{
throw new IllegalArgumentException("No scheme found for service " + sServiceName);
}
return ensureService(scheme);
}
/**
* {@inheritDoc}
*/
@Override
public synchronized void activate()
{
if (m_fActivated)
{
throw new IllegalStateException("This factory is already active.");
}
// validate the configuration
f_cacheConfig.validate(f_registry);
f_dispatcher.dispatchActivating(this);
startServices();
try
{
f_dispatcher.dispatchActivated(this);
}
finally
{
m_fActivated = true;
}
}
/**
* {@inheritDoc}
*/
@Override
public synchronized void dispose()
{
try
{
f_dispatcher.dispatchDisposing(this);
}
finally
{
Map mapServices = m_mapServices;
for (Service service : mapServices.keySet())
{
synchronized (service)
{
ResourceRegistry registry = service.getResourceRegistry();
Set setRefs =
registry.getResource(Set.class, "Referrers");
if (setRefs == null ||
(setRefs.remove(this) && setRefs.isEmpty()))
{
service.shutdown();
}
}
}
mapServices.clear();
f_registry.dispose();
m_fActivated = false;
m_fDisposed = true;
}
}
/**
* {@inheritDoc}
*/
@Override
public ResourceRegistry getResourceRegistry()
{
assertNotDisposed();
return f_registry;
}
/**
* {@inheritDoc}
*/
@Override
public InterceptorRegistry getInterceptorRegistry()
{
return getResourceRegistry().getResource(InterceptorRegistry.class);
}
// ----- ExtensibleConfigurableCacheFactory methods ---------------------
/**
* Return the scope name for this ConfigurableCacheFactory. If specified,
* this name will be used as a prefix for the name of all services created
* by this factory.
*
* @return the scope name for this ConfigurableCacheFactory; may be null
*/
public String getScopeName()
{
return f_cacheConfig.getScopeName();
}
/**
* Return the request timeout determined by the {@link ServiceScheme}.
*
* @param scheme the scheme that determines the request timeout
*
* @return the request timeout
*/
protected long getRequestTimeout(ServiceScheme scheme)
{
ServiceDependencies deps = null;
if (scheme instanceof AbstractServiceScheme)
{
deps = ((AbstractServiceScheme) scheme).getServiceDependencies();
}
long cWait = deps == null ? -1 : deps.getRequestTimeoutMillis();
return cWait > 0 ? cWait : -1;
}
/**
* Return true if this factory has been disposed via invocation of
* {@link #dispose()}.
*
* @return true if this factory has been disposed
*/
protected boolean isDisposed()
{
return m_fDisposed;
}
/**
* Throws {@link IllegalStateException} if this factory has been disposed
* via invocation of {@link #dispose()}.
*
*/
protected void assertNotDisposed()
{
if (isDisposed())
{
throw new IllegalStateException("This factory has been disposed and cannot be reused");
}
}
/**
* Performs final configuration of an {@link ExtensibleConfigurableCacheFactory}
* instance prior to it being used by Coherence.
*
* This method is called by the {@link ExtensibleConfigurableCacheFactory}
* constructor, just after the internal state has been initialized and before
* the {@link ExtensibleConfigurableCacheFactory} instance is returned to the
* caller.
*
* This method allows those that need to sub-class an
* {@link ExtensibleConfigurableCacheFactory} to override the final stages
* of configuration. Anyone overriding this method must be sure to call
* super.configure() in order to ensure correction configuration semantics.
*/
protected void configure()
{
f_registry.getResource(InterceptorManager.class)
.instantiateGlobalInterceptors();
}
/**
* Ensure the service for the specified scheme then start the service if
* it isn't running.
*
* @param scheme the scheme referring to the service
*
* @return the corresponding Service
*/
public Service ensureService(ServiceScheme scheme)
{
assertNotDisposed();
ServiceBuilder bldrService = scheme.getServiceBuilder();
ClassLoader loader = getConfigClassLoader();
Cluster cluster = bldrService.isRunningClusterNeeded()
? CacheFactory.ensureCluster() : CacheFactory.getCluster();
// Note: SafeCluster implements Lockable (COH-23345)
try (Lockable.Unlockable unlockable = ((Lockable) cluster).exclusively())
{
Service service = bldrService.realizeService(
f_cacheConfig.getDefaultParameterResolver(), loader, cluster);
if (service.isRunning())
{
if (service instanceof CacheService)
{
validateBackingMapManager((CacheService) service);
}
}
else
{
if (service instanceof CacheService)
{
// create and register the backing map manager
BackingMapManager mgr = ((CachingScheme) scheme).realizeBackingMapManager(this);
registerBackingMapManager(mgr);
((CacheService) service).setBackingMapManager(mgr);
}
startService(service);
}
m_mapServices.put(service, scheme.getServiceName());
// add this ECCF as a "referrer"
synchronized (service)
{
ResourceRegistry registry = service.getResourceRegistry();
Set setRefs =
registry.getResource(Set.class, "Referrers");
if (setRefs == null)
{
setRefs = Collections.newSetFromMap(new IdentityHashMap<>());
registry.registerResource(Set.class, "Referrers", setRefs);
}
setRefs.add(this);
}
return service;
}
}
/**
* Return the {@link CacheConfig} that contains the configuration used by
* this factory.
*
* @return the CacheConfig
*/
public CacheConfig getCacheConfig()
{
return f_cacheConfig;
}
/**
* Translate the scheme name into the scheme type. Valid scheme types are
* any of the SCHEME_* constants.
*
* @param sScheme the scheme name
*
* @return the scheme type
*/
protected static int translateStandardSchemeType(String sScheme)
{
Integer iSchemeType = MAP_SCHEMETYPE_BY_SCHEMENAME.get(sScheme);
return iSchemeType == null ? SCHEME_UNKNOWN : iSchemeType;
}
// ----- helpers and inheritance support --------------------------------
/**
* Start all services that are declared as requiring an "autostart".
*/
public void startServices()
{
CacheConfig config = getCacheConfig();
ResourceMappingRegistry regMapping = config.getMappingRegistry();
ServiceSchemeRegistry regScheme = config.getServiceSchemeRegistry();
// collect all scheme names for "shared" services based on the container context
Set setSharedScheme = NullImplementation.getSet();
// start all scoped services
for (ServiceScheme scheme : regScheme)
{
if (scheme.isAutoStart() && !setSharedScheme.contains(scheme.getSchemeName()))
{
ensureService(scheme);
}
}
}
/**
* Return a map of services that were successfully started by this
* factory where values are corresponding non-scoped service names.
*
* Note, that this method returns a copy of the underlying map
*/
public Map getServiceMap()
{
return new LinkedHashMap<>(m_mapServices);
}
/**
* Start the given {@link Service}. Extensions of this class can
* override this method to provide pre/post start functionality.
*
* @param service the {@link Service} to start
*/
protected void startService(Service service)
{
service.start();
}
/**
* Set the class loader used to load the configuration for this factory.
*
* @param loader the class loader to use for loading the configuration
*/
protected void setConfigClassLoader(ClassLoader loader)
{
m_loader = ensureClassLoader(loader);
}
/**
* Return the class loader used to load the configuration for this factory.
*
* @return the class loader to use for loading the configuration
*/
protected ClassLoader getConfigClassLoader()
{
return m_loader;
}
/**
* Check if the current user is allowed to "join" the cache.
*
* @param cache the cache
*
*/
protected static void checkPermission(NamedCache cache)
{
checkPermission(cache.getCacheService(), cache.getCacheName());
}
/**
* Check if the current user is allowed to "join" to the collection.
*
* @param collection the collection
*
*/
protected static void checkPermission(NamedCollection collection)
{
checkPermission(collection.getService(), collection.getName());
}
/**
* Check if the current user is allowed to "join" the data structure
* with the specified name.
*
* @param service the service
* @param sName the data structure name
*
*/
protected static void checkPermission(Service service, String sName)
{
// This is a secondary check to make sure that cached references
// are allowed with the current Subject. The primary check is in
// SafeCacheService.ensureCache().
Security.checkPermission(service.getCluster(),
service.getInfo().getServiceName(), sName, "join");
}
/**
* Return the ParameterResolver that has been initialized with the built-in
* Coherence parameters. Schemes may use expressions (macros) and the resolver
* contains the parameters that are defined in the cache mapping needed to
* translate those expressions into values.
*
* @param sCacheName the cache name
* @param loader the ClassLoader
* @param ctxBMM the BackingMapManagerContext
*
* @return the ParameterResolver
*/
public ParameterResolver getParameterResolver(final String sCacheName, ClassLoader loader,
BackingMapManagerContext ctxBMM)
{
return getParameterResolver(sCacheName, ResourceMapping.class, loader, ctxBMM);
}
/**
* Return the ParameterResolver that has been initialized with the built-in
* Coherence parameters. Schemes may use expressions (macros) and the resolver
* contains the parameters that are defined in the cache mapping needed to
* translate those expressions into values.
*
* @param sResourceName the resource name
* @param clzResourceMapping resource type
* @param loader the ClassLoader
* @param ctxBMM the BackingMapManagerContext
*
* @return the ParameterResolver
*
* @since 14.1.1.0.0
*/
public ParameterResolver getParameterResolver(final String sResourceName, Class clzResourceMapping, ClassLoader loader,
BackingMapManagerContext ctxBMM)
{
ResourceMapping mapping = f_cacheConfig.getMappingRegistry().findMapping(sResourceName, clzResourceMapping);
ScopedParameterResolver resolver = new ScopedParameterResolver(mapping == null
? f_cacheConfig.getDefaultParameterResolver()
: mapping.getParameterResolver());
// add the standard coherence parameters to the parameter provider
if (mapping != null)
{
resolver.add(new Parameter(mapping.getConfigElementName(), sResourceName));
}
resolver.add(new Parameter("class-loader", loader));
resolver.add(new Parameter("manager-context", ctxBMM));
return resolver;
}
/**
* Return the ParameterResolver that has been initialized with the built-in
* Coherence parameters. Schemes may use expressions (macros) and the resolver
* contains the parameters that are defined for components defined at a scheme
* level and not a cache level.
*
* @param loader the ClassLoader
* @param ctxBMM the BackingMapManagerContext
*
* @return the ParameterResolver
*/
public ParameterResolver createParameterResolver(ClassLoader loader, BackingMapManagerContext ctxBMM)
{
ScopedParameterResolver resolver = new ScopedParameterResolver(f_cacheConfig.getDefaultParameterResolver());
// add the standard coherence parameters to the parameter provider
resolver.add(new Parameter("class-loader", loader));
resolver.add(new Parameter("manager-context", ctxBMM));
return resolver;
}
/**
* Register the specified BackingMapManager as a "valid" one. That registry
* is used to identify services configured and started by this factory and
* prevent accidental usage of (potentially incompatible) cache services
* with the same name created by other factories.
*
* @param mgr a BackingMapManager instance instantiated by this factory
*/
protected void registerBackingMapManager(BackingMapManager mgr)
{
m_setManager.add(mgr);
}
/**
* Ensures that the backing map manager of the specified service was
* configured by this (or equivalent) factory. This validation is performed
* to prevent accidental usage of (potentially incompatible) cache services
* with the same name created by other factories.
*
* @param service the CacheService to validate
*
* @throws IllegalStateException if the backing map for the provided service
* does not reference the expected factory
*/
protected void validateBackingMapManager(CacheService service)
throws IllegalStateException
{
BackingMapManager manager = service.getBackingMapManager();
if (m_setManager.contains(manager))
{
return;
}
if (!(manager instanceof Manager))
{
throw new IllegalStateException(
"Service \"" + service.getInfo().getServiceName() + "\" has been started "
+ (manager == null
? "without a BackingMapManager"
: "with a non-compatible BackingMapManager: " + manager));
}
ConfigurableCacheFactory that = ((Manager) manager).getCacheFactory();
if (!(that instanceof ExtensibleConfigurableCacheFactory))
{
throw new IllegalStateException(
"Service \"" + service.getInfo().getServiceName()
+ "\" has been started by an instance of \"" + that.getClass().getName()
+ "\" instead of \"" + this.getClass().getName() + "\"");
}
// note: in the past we use to call getConfig here, but that unnecessarily
// cloned the xml documents. this is no longer required as it's
// impossible to "reset" the xml configuration once this class is instantiated
XmlElement xmlLegacyConfig = ((ExtensibleConfigurableCacheFactory) that).f_xmlLegacyConfig;
if (that != this && !Base.equals(xmlLegacyConfig, this.f_xmlLegacyConfig))
{
CacheFactory.log("This configurable cache factory config: " + this.f_xmlLegacyConfig, Base.LOG_INFO);
CacheFactory.log("Other configurable cache factory config: " + xmlLegacyConfig, Base.LOG_INFO);
throw new IllegalStateException("Service \"" + service.getInfo().getServiceName()
+ "\" has been started by a different configurable cache factory.");
}
}
/**
* Release all resources associated with the specified backing map.
*
* @param map the map being released
* @param mapListeners map of registered map listeners keyed by the
* corresponding map references
*/
protected void release(Map map, Map mapListeners)
{
// remove known map listener
if (map instanceof ObservableMap && mapListeners != null)
{
MapListener listener = (MapListener) mapListeners.get(map);
if (listener != null)
{
((ObservableMap) map).removeMapListener(listener);
mapListeners.remove(map);
}
}
// process recursively
if (map instanceof LocalCache)
{
CacheLoader loader = ((LocalCache) map).getCacheLoader();
if (loader instanceof MapCacheStore)
{
release(((MapCacheStore) loader).getMap(), mapListeners);
}
else
{
release(loader);
}
}
else if (map instanceof OverflowMap)
{
release(((OverflowMap) map).getFrontMap(), mapListeners);
release(((OverflowMap) map).getBackMap(), mapListeners);
}
else if (map instanceof ReadWriteBackingMap)
{
((ReadWriteBackingMap) map).release();
release(((ReadWriteBackingMap) map).getInternalCache(), mapListeners);
}
else if (map instanceof SerializationMap)
{
release(((SerializationMap) map).getBinaryStore());
}
else if (map instanceof SimpleSerializationMap)
{
release(((SimpleSerializationMap) map).getBinaryStore());
}
else if (map instanceof BinaryMap)
{
ByteBufferManager bufmgr = ((BinaryMap) map).getBufferManager();
if (bufmgr instanceof MappedBufferManager)
{
((MappedBufferManager) bufmgr).close();
}
}
// regardless of the above, the map may be disposable as well
if (map instanceof Disposable)
{
((Disposable) map).dispose();
}
}
/**
* Release all resources associated with the specified loader.
*
* @param loader the cache loader being released
*/
protected void release(CacheLoader loader)
{
if (loader instanceof Disposable)
{
((Disposable) loader).dispose();
}
else
{
try
{
ClassHelper.invoke(loader, "close", ClassHelper.VOID);
}
catch (Exception e)
{
}
}
}
/**
* Release all resources associated with the specified binary store.
*
* @param store the binary store being released
*/
protected void release(BinaryStore store)
{
if (store instanceof Disposable)
{
((Disposable) store).dispose();
}
else
{
try
{
ClassHelper.invoke(store, "close", ClassHelper.VOID);
}
catch (Exception e)
{
}
}
}
/**
* Release a cache managed by this factory, optionally destroying it.
*
* @param cache the cache to release
* @param fDestroy true to destroy the cache as well
*/
protected void releaseCache(NamedCache cache, boolean fDestroy)
{
String sCacheName = cache.getCacheName();
ClassLoader loader = cache instanceof ClassLoaderAware
? ((ClassLoaderAware) cache).getContextClassLoader() : getContextClassLoader();
Runnable runRelease = () ->
{
// allow cache to release/destroy internal resources
if (fDestroy)
{
cache.destroy();
}
else
{
cache.release();
}
};
if (f_store.releaseCache(cache, loader, runRelease))
{
// nothing to do
}
else if (cache.isActive())
{
// active, but not managed by this factory
throw new IllegalArgumentException("The cache " + sCacheName
+ " was created using a different factory; that same"
+ " factory should be used to release the cache.");
}
}
/**
* {@inheritDoc}
*/
@Override
public void releaseTopic(NamedTopic topic)
{
releaseCollection(topic, /* fDestroy */ false, f_storeTopics);
}
/**
* {@inheritDoc}
*/
@Override
public void destroyTopic(NamedTopic topic)
{
releaseCollection(topic, /* fDestroy */ true, f_storeTopics);
}
/**
* Release a {@link NamedCollection} managed by this factory, optionally destroying it.
*
* @param collection the collection to release
* @param fDestroy true to destroy the collection as well
*/
private void releaseCollection(C collection, boolean fDestroy,
ScopedReferenceStore store)
{
String sName = collection.getName();
ClassLoader loader = collection instanceof ClassLoaderAware
? ((ClassLoaderAware) collection).getContextClassLoader() : getContextClassLoader();
if (store.release(collection, loader)) // free the resources
{
// allow collection to release/destroy internal resources
if (fDestroy)
{
collection.destroy();
}
else
{
collection.release();
}
}
else if (collection.isActive())
{
// active, but not managed by this factory
throw new IllegalArgumentException("The collection " + sName
+ " was created using a different factory; that same"
+ " factory should be used to release the collection.");
}
}
/**
* {@inheritDoc}
*/
public boolean isCacheActive(String sCacheName, ClassLoader loader)
{
return f_store.getCache(sCacheName, ensureClassLoader(loader)) != null;
}
// ----- Dependencies interface -----------------------------------------
/**
* The {@link Dependencies} for the {@link ExtensibleConfigurableCacheFactory}.
*/
public static interface Dependencies
{
/**
* Obtains {@link CacheConfig} for an {@link ExtensibleConfigurableCacheFactory}.
*
* @return the {@link CacheConfig}
*/
public CacheConfig getCacheConfig();
/**
* Obtains the {@link ClassLoader} than an {@link ExtensibleConfigurableCacheFactory}
* should use for loading classes.
*
* @return the context {@link ClassLoader}
*/
public ClassLoader getContextClassLoader();
/**
* Obtains the {@link ResourceRegistry} for an {@link ExtensibleConfigurableCacheFactory}.
*
* @return the {@link ResourceRegistry}
*/
public ResourceRegistry getResourceRegistry();
}
// ----- inner DefaultDependencies class --------------------------------
/**
* The {@link DefaultDependencies} is a simple implementation of
* the {@link ExtensibleConfigurableCacheFactory} {@link Dependencies}
* interface.
*/
public static class DefaultDependencies
implements Dependencies
{
/**
* Constructs a {@link DefaultDependencies} with the Context {@link ClassLoader}
* being the {@link ClassLoader} of the {@link CacheConfig} instance and
* an empty {@link ResourceRegistry}.
*
* @param cacheConfig the {@link CacheConfig}
*/
public DefaultDependencies(CacheConfig cacheConfig)
{
this(cacheConfig, cacheConfig.getClass().getClassLoader(), new SimpleResourceRegistry());
}
// ----- constructors -----------------------------------------------
/**
* Constructs a {@link DefaultDependencies}.
*
* @param cacheConfig the {@link CacheConfig}
* @param contextClassLoader the {@link ClassLoader}
* @param registry the {@link ResourceRegistry}
*/
public DefaultDependencies(CacheConfig cacheConfig, ClassLoader contextClassLoader, ResourceRegistry registry)
{
Base.azzert(cacheConfig != null);
Base.azzert(contextClassLoader != null);
Base.azzert(registry != null);
m_cacheConfig = cacheConfig;
m_contextClassLoader = contextClassLoader;
m_resourceRegistry = registry;
}
// ----- Dependencies methods ---------------------------------------
/**
* {@inheritDoc}
*/
@Override
public CacheConfig getCacheConfig()
{
return m_cacheConfig;
}
/**
* {@inheritDoc}
*/
@Override
public ClassLoader getContextClassLoader()
{
return m_contextClassLoader;
}
/**
* {@inheritDoc}
*/
@Override
public ResourceRegistry getResourceRegistry()
{
return m_resourceRegistry;
}
// ----- data members -----------------------------------------------
private CacheConfig m_cacheConfig;
private ClassLoader m_contextClassLoader;
private ResourceRegistry m_resourceRegistry;
}
// ----- DependenciesHelper class --------------------------------------
/**
* The {@link DependenciesHelper} provides helper method for constructing
* {@link Dependencies} implementations for {@link ExtensibleConfigurableCacheFactory}s.
*/
public static class DependenciesHelper
{
/**
* Construct an {@link ExtensibleConfigurableCacheFactory}
* {@link Dependencies} instance based on Coherence defaults.
*/
public static Dependencies newInstance()
{
return newInstance(FILE_CFG_CACHE, null);
}
/**
* Construct an {@link ExtensibleConfigurableCacheFactory}
* {@link Dependencies} instance based on the information defined by
* the specified cache configuration file/resource that of which is
* compliant with the "coherence-cache-config.xsd".
*
* @param sPath the configuration resource name or file path
*/
public static Dependencies newInstance(String sPath)
{
return newInstance(sPath, null);
}
/**
* Construct an {@link ExtensibleConfigurableCacheFactory}
* {@link Dependencies} instance based on the information defined by
* the specified cache configuration file/resource that of which is
* compliant with the "coherence-cache-config.xsd".
*
* @param sPath the configuration resource name or file path
* @param contextClassLoader the optional {@link ClassLoader} that
* should be used to load configuration resources
*/
public static Dependencies newInstance(String sPath, ClassLoader contextClassLoader)
{
XmlElement xmlConfig = XmlHelper.loadFileOrResource(sPath,
"Cache Configuration from:" + sPath, contextClassLoader);
return newInstance(xmlConfig, contextClassLoader, null);
}
/**
* Construct an {@link ExtensibleConfigurableCacheFactory}
* {@link Dependencies} instance based on the information defined by
* {@link XmlElement} that of which is compliant with the
* "coherence-cache-config.xsd".
*
* @param xmlConfig the {@link XmlElement} defining the configuration
*/
public static Dependencies newInstance(XmlElement xmlConfig)
{
return newInstance(xmlConfig, null, null);
}
/**
* Construct an {@link ExtensibleConfigurableCacheFactory}
* {@link Dependencies} instance based on the information defined by
* {@link XmlElement} that of which is compliant with the
* "coherence-cache-config.xsd".
*
* @param xmlConfig the {@link XmlElement} defining the configuration
* @param contextClassLoader the optional {@link ClassLoader} that
* should be used to load configuration resources
*/
public static Dependencies newInstance(XmlElement xmlConfig, ClassLoader contextClassLoader)
{
return newInstance(xmlConfig, contextClassLoader, null);
}
/**
* Construct an {@link ExtensibleConfigurableCacheFactory}
* {@link Dependencies} instance based on the information defined by
* {@link XmlElement} that of which is compliant with the
* "coherence-cache-config.xsd".
*
* @param xmlConfig the {@link XmlElement} defining the configuration
* @param contextClassLoader the optional {@link ClassLoader} that
* should be used to load configuration resources
* @param sPofConfigUri the optional {@link URI} of the POF configuration
* file
*/
public static Dependencies newInstance(XmlElement xmlConfig, ClassLoader contextClassLoader,
String sPofConfigUri)
{
return newInstance(xmlConfig, contextClassLoader, sPofConfigUri, null);
}
/**
* Construct an {@link ExtensibleConfigurableCacheFactory}
* {@link Dependencies} instance based on the information defined by
* {@link XmlElement} that of which is compliant with the
* "coherence-cache-config.xsd".
*
* @param xmlConfig the {@link XmlElement} defining the configuration
* @param loader an optional {@link ClassLoader} that
* should be used to load configuration resources
* @param sPofConfigUri an optional {@link URI} of the POF configuration file
* @param sScopeName an optional scope name
*/
public static Dependencies newInstance(XmlElement xmlConfig, ClassLoader loader,
String sPofConfigUri, String sScopeName)
{
loader = Base.ensureClassLoader(loader);
// establish a default ParameterResolver based on the System properties
// COH-9952 wrap the code in privileged block for upstack products
ScopedParameterResolver resolver = AccessController.
doPrivileged(new PrivilegedAction()
{
public ScopedParameterResolver run()
{
return new ScopedParameterResolver(
new ChainedParameterResolver(
new SystemPropertyParameterResolver(),
new SystemEnvironmentParameterResolver()));
}
});
// create the ResourceRegistry for the Dependencies
ResourceRegistry resourceRegistry = new SimpleResourceRegistry();
// establish an InterceptorRegistry & EventDispatcherRegistry as
// part of the ResourceRegistry
Registry eventRegistry = new Registry();
resourceRegistry.registerResource(InterceptorRegistry.class, eventRegistry);
resourceRegistry.registerResource(EventDispatcherRegistry.class, eventRegistry);
if (sScopeName != null)
{
resourceRegistry.registerResource(String.class, "scope-name", sScopeName);
}
// the default parameter resolver always contains the pof-config-uri
// (this is used internally)
resolver.add(new Parameter("pof-config-uri", sPofConfigUri));
// create a reference to the xml document containing the cache
// configuration to process
XmlDocumentReference docRef = new XmlDocumentReference(xmlConfig.toString());
// create and configure the DocumentProcessor Dependencies
DocumentProcessor.DefaultDependencies dependencies =
new DocumentProcessor.DefaultDependencies(new CacheConfigNamespaceHandler());
// finish configuring the dependencies
dependencies.setResourceRegistry(resourceRegistry);
dependencies.setDefaultParameterResolver(resolver);
dependencies.setExpressionParser(ParameterMacroExpressionParser.INSTANCE);
dependencies.setClassLoader(loader);
// use a DocumentProcessor to create our CacheConfig
DocumentProcessor processor = new DocumentProcessor(dependencies);
CacheConfig cacheConfig = processor.process(docRef);
InterceptorManager manager = new InterceptorManager(cacheConfig,
loader, resourceRegistry);
resourceRegistry.registerResource(InterceptorManager.class, manager);
return new DefaultDependencies(cacheConfig, loader, resourceRegistry);
}
}
// ----- Manager class -------------------------------------------------
/**
* The Manager class uses builders to create the required backing maps
* and provides client access to those maps.
*
* This class also implements methods to create/release backup maps as
* needed by PartitionedCache$Storage$BackingManager.
*/
public static class Manager
extends AbstractBackingMapManager
{
// ----- constructors -----------------------------------------------
/**
* Construct the backing map manager.
*
* @param factory the factory associated with this manager
*/
public Manager(ExtensibleConfigurableCacheFactory factory)
{
m_factory = factory;
}
// ----- BackingMapManager interface --------------------------------
/**
* {@inheritDoc}
*
* Important note: BackingMapManager cannot be associated with more
* than one instance of a CacheService. However, in a situation when a
* CacheService automatically restarts, it is possible that this manager
* instance is re-used by a newly created (restarted) CacheService
* calling this method once again providing a new context.
*/
@Override
public void init(BackingMapManagerContext context)
{
super.init(context);
m_mapBackingMap = new HashMap<>();
m_mapBackingMapListeners = new IdentityHashMap<>();
}
/**
* {@inheritDoc}
*/
@Override
public Map instantiateBackingMap(String sName)
{
boolean fPartitioned = false;
ParameterResolver resolver = getScopedResolver(sName);
BackingMapManagerContext context = getContext();
ClassLoader loader = context.getClassLoader();
CachingScheme scheme = findCachingScheme(sName);
if (scheme == null)
{
throw new IllegalArgumentException("BackingMapManager cannot find a CachingScheme for cache " + sName);
}
// create the context needed by the map builders to realize a map
ExtensibleConfigurableCacheFactory factory = getCacheFactory();
MapBuilder.Dependencies dependencies = new MapBuilder.Dependencies(factory, context, loader, sName,
context.getCacheService().getInfo().getServiceType(),
m_mapBackingMapListeners);
// if the scheme is clustered then get the partitioned flag and builder from the
// backing map scheme
if (scheme instanceof ClusteredCachingScheme)
{
BackingMapScheme schemeBackingMap = ((ClusteredCachingScheme) scheme).getBackingMapScheme();
scheme = schemeBackingMap.getInnerScheme();
fPartitioned = schemeBackingMap.isPartitioned(resolver, false);
}
// get the builder that will create the map which is returned by this method, except in
// the case of non-RWBM partitioned maps where a partitioned aware map is returned
MapBuilder bldrMap = scheme;
Map map = fPartitioned
? instantiatePartitionedBackingMap(bldrMap, resolver, dependencies, scheme)
: bldrMap.realizeMap(resolver, dependencies);
// add the backing map listener if the scheme is observable
if (scheme instanceof ObservableCachingScheme && map instanceof ObservableMap)
{
ObservableCachingScheme schemeObservable = (ObservableCachingScheme)scheme;
schemeObservable.establishMapListeners(map, resolver, dependencies);
}
setBackingMap(sName, map);
MBeanHelper.registerCacheMBean(context.getCacheService(), sName, "tier=back", map);
return map;
}
/**
* Instantiate a partitioned backing map (an instance of {@link ObservableSplittingBackingMap})
* using {@link PartitionedBackingMapManager}. If the provided scheme is an instance of
* {@link ReadWriteBackingMapScheme}, the internal scheme's map builder is used to build
* the backing map.
*
* @param bldrMap the {@link MapBuilder} for partitions
* @param resolver the {@link ParameterizedBuilder}
* @param dependencies the {@link Dependencies} for {@link MapBuilder}s
* @param scheme the {@link CachingScheme} of the requested cache
*
* @return partitioned backing map that will provide backing storage for the specified cache
*/
protected Map instantiatePartitionedBackingMap(MapBuilder bldrMap, ParameterResolver resolver,
MapBuilder.Dependencies dependencies, CachingScheme scheme)
{
ReadWriteBackingMapScheme schemeRwbm = scheme instanceof ReadWriteBackingMapScheme
? (ReadWriteBackingMapScheme) scheme : null;
MapBuilder bldrPartition = schemeRwbm == null ? bldrMap : schemeRwbm.getInternalScheme();
Base.checkNotNull(bldrPartition, "The BackingMapContext is missing a partition map builder");
PartitionedBackingMapManager mgrInner = new PartitionedBackingMapManager(getCacheFactory(), dependencies,
resolver, bldrPartition);
mgrInner.init(getContext());
// create the partition aware backing map (ObservableSplittingBackingMap) which will
// instantiate individual partitions by calling the "mgrInner" PartitionedBackingMapManager
// for each partition as needed
String sName = dependencies.getCacheName();
ObservableSplittingBackingMap pabm = new ObservableSplittingBackingCache(mgrInner, sName);
if (schemeRwbm == null)
{
return pabm;
}
else
{
// let the RWBM scheme use the new ObservableSplittingBackingMap for its internal map,
// which allows RWBM to use partitions
schemeRwbm.setInternalMap(pabm);
// create a new RWBM to return
return bldrMap.realizeMap(resolver, dependencies);
}
}
/**
* {@inheritDoc}
*/
@Override
public boolean isBackingMapPersistent(String sName)
{
DistributedScheme schemeDist = findDistributedScheme(sName);
ParameterResolver resolver = getResolver(sName);
return !schemeDist.getBackingMapScheme().isTransient(resolver);
}
/**
* {@inheritDoc}
*/
@Override
public boolean isBackingMapSlidingExpiry(String sName)
{
DistributedScheme schemeDist = findDistributedScheme(sName);
ParameterResolver resolver = getResolver(sName);
return schemeDist.getBackingMapScheme().isSlidingExpiry(resolver);
}
/**
* {@inheritDoc}
*/
@Override
public StorageAccessAuthorizer getStorageAccessAuthorizer(String sName)
{
DistributedScheme schemeDist = findDistributedScheme(sName);
BackingMapScheme schemeBackingMap = schemeDist == null
? null : schemeDist.getBackingMapScheme();
Expression exprAuthorizer = schemeBackingMap == null
? null : schemeBackingMap.getStorageAccessAuthorizer();
if (exprAuthorizer == null)
{
return null;
}
ParameterResolver resolver = getResolver(sName);
String sAuthorizer = exprAuthorizer.evaluate(resolver);
ClusterDependencies dependencies = CacheFactory.getCluster().getDependencies();
ParameterizedBuilderRegistry registry = dependencies.getBuilderRegistry();
ParameterizedBuilder builder = registry.getBuilder(
StorageAccessAuthorizer.class, sAuthorizer);
if (builder == null)
{
throw new IllegalArgumentException("Configuration error: backing map of scheme \"" +
schemeDist.getSchemeName() + "\" references undefined storage-authorizer \"" +
sAuthorizer + "\"");
}
try
{
return builder.realize(resolver, getContext().getClassLoader(), null);
}
catch (RuntimeException e)
{
throw new IllegalArgumentException("Configuration error: received exception " +
e.getClass().getSimpleName() + " during instantiation of storage-authorizer \"" +
sAuthorizer + "\" configured within backing map of scheme \"" +
schemeDist.getSchemeName() + "\"", e);
}
}
/**
* {@inheritDoc}
*/
@Override
public void releaseBackingMap(String sName, Map map)
{
BackingMapManagerContext context = getContext();
if (context != null)
{
MBeanHelper.unregisterCacheMBean(context.getCacheService(), sName, "tier=back");
}
getCacheFactory().release(map, m_mapBackingMapListeners);
setBackingMap(sName, null);
}
// ----- Manager methods --------------------------------------------
/**
* Instantiate a [thread safe] Map that should be used by a CacheService
* to store cached values for a NamedCache with the specified name.
*
* @param sName the name of the NamedCache for which this map is
* being created
*
* @return an object implementing the Map interface that will provide
* backing storage for the specified cache name
*/
public Map instantiateBackupMap(String sName)
{
Map map;
ParameterResolver resolver = getResolver(sName);
BackingMapManagerContext context = getContext();
ClassLoader loader = context.getClassLoader();
ExtensibleConfigurableCacheFactory factory = getCacheFactory();
DistributedScheme schemeDist = findDistributedScheme(sName);
// get the type of backup map and process ON_HEAP immediately since it doesn't
// require a scheme or a backup-storage configuration
int nType = getBackupMapType(schemeDist, resolver);
if (nType == BackingMapScheme.ON_HEAP)
{
return new SafeHashMap();
}
// create the context needed by the map builders to realize a map
MapBuilder.Dependencies dependencies = new MapBuilder.Dependencies(getCacheFactory(), context, loader,
sName, context.getCacheService().getInfo().getServiceType());
dependencies.setBackup(true);
// COH-7138 : flashJournal is explicitly set by default if the backing map is any journal,
// see DistributedScheme.BackupMapConfig.resolveType()
if (nType == BackingMapScheme.FLASHJOURNAL)
{
// if the BackingMapScheme is a FlashJournalScheme then use it, else create a temporary one
// for the backup map.
AbstractLocalCachingScheme journalScheme = schemeDist.getBackingMapScheme();
journalScheme = journalScheme instanceof FlashJournalScheme ? journalScheme : new FlashJournalScheme();
return journalScheme.realizeMap(resolver, dependencies);
}
// all other types must have a backup-storage configuration in the scheme
BackupMapConfig configBackup = schemeDist.getBackupMapConfig();
if (configBackup == null)
{
throw new IllegalStateException("Backup map cannot be created"
+ " because the backup configuration is missing");
}
// Bounds check:
// 1 <= cbInitSize <= cbMaxSize <= Integer.MAX_VALUE - 1023
// (Integer.MAX_VALUE - 1023 is the largest integer multiple of 1024)
int cbMax = (int) Math.min(Math.max(configBackup.getMaximumSize(resolver), 1L),
(long) Integer.MAX_VALUE - 1023);
int cbInit = (int) Math.min(Math.max(configBackup.getInitialSize(resolver), 1L), cbMax);
switch (nType)
{
case BackingMapScheme.CUSTOM :
{
ParameterizedBuilder