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This is the ehcache core module. Pair it with other modules for added functionality.
/**
* Copyright 2003-2010 Terracotta, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.sf.ehcache.config;
import net.sf.ehcache.Cache;
import net.sf.ehcache.CacheException;
import net.sf.ehcache.CacheManager;
import net.sf.ehcache.ObjectExistsException;
import net.sf.ehcache.config.generator.ConfigurationSource;
import net.sf.ehcache.store.Store;
import net.sf.ehcache.transaction.manager.DefaultTransactionManagerLookup;
import net.sf.ehcache.transaction.manager.TransactionManagerLookup;
import net.sf.ehcache.util.ClassLoaderUtil;
import net.sf.ehcache.util.PropertyUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.lang.reflect.InvocationTargetException;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArrayList;
/**
* A bean, used by BeanUtils, to set configuration from an XML configuration file.
*
* @author Greg Luck
* @version $Id: Configuration.java 4986 2011-11-23 15:16:22Z cdennis $
*/
public final class Configuration {
/**
* Default value for dynamicConfig
*/
public static final boolean DEFAULT_DYNAMIC_CONFIG = true;
/**
* Default value for updateCheck
*/
public static final boolean DEFAULT_UPDATE_CHECK = true;
/**
* Default value for defaultTransactionTimeoutInSeconds
*/
public static final int DEFAULT_TRANSACTION_TIMEOUT = 15;
/**
* Default value for maxBytesLocalHeap when not explicitly set
*/
public static final long DEFAULT_MAX_BYTES_ON_HEAP = 0;
/**
* Default value for maxBytesLocalOffHeap when not explicitly set
*/
public static final long DEFAULT_MAX_BYTES_OFF_HEAP = 0;
/**
* Default value for maxBytesLocalDisk when not explicitly set
*/
public static final long DEFAULT_MAX_BYTES_ON_DISK = 0;
/**
* Default value for monitoring
*/
public static final Monitoring DEFAULT_MONITORING = Monitoring.AUTODETECT;
/**
* Default sizeOfPolicy configuration
*/
public static final SizeOfPolicyConfiguration DEFAULT_SIZEOF_POLICY_CONFIGURATION = new SizeOfPolicyConfiguration();
/**
* Default transactionManagerLookupConfiguration
*/
public static final FactoryConfiguration DEFAULT_TRANSACTION_MANAGER_LOOKUP_CONFIG = getDefaultTransactionManagerLookupConfiguration();
private static final int HUNDRED = 100;
private static final Logger LOG = LoggerFactory.getLogger(Configuration.class);
private volatile RuntimeCfg cfg;
private final List propertyChangeListeners = new CopyOnWriteArrayList();
/**
* Represents whether monitoring should be enabled or not.
*
* @author amiller
*/
public enum Monitoring {
/** When possible, notice the use of Terracotta and auto register the SampledCacheMBean. */
AUTODETECT,
/** Always auto register the SampledCacheMBean */
ON,
/** Never auto register the SampledCacheMBean */
OFF;
}
/**
* Enum of all properties that can change once the Configuration is being used by a CacheManager
*/
private static enum DynamicProperty {
cacheManagerName {
@Override
void applyChange(final PropertyChangeEvent evt, final RuntimeCfg config) {
config.cacheManagerName = (String) evt.getNewValue();
}
},
defaultCacheConfiguration {
@Override
void applyChange(final PropertyChangeEvent evt, final RuntimeCfg config) {
LOG.debug("Default Cache Configuration has changed, previously created caches remain untouched");
}
},
maxBytesLocalHeap {
@Override
void applyChange(final PropertyChangeEvent evt, final RuntimeCfg config) {
ArrayList errors = new ArrayList();
Long newValue = (Long)evt.getNewValue();
if ((Long) evt.getOldValue() > (Long) evt.getNewValue()) {
// Double check for over-allocation again
for (Cache cache : getAllActiveCaches(config.cacheManager)) {
CacheConfiguration cacheConfiguration = cache.getCacheConfiguration();
errors.addAll(cacheConfiguration.validateCachePools(config.getConfiguration()));
errors.addAll(cacheConfiguration.verifyPoolAllocationsBeforeAddingTo(config.cacheManager,
newValue, config.getConfiguration().getMaxBytesLocalOffHeap(), config.getConfiguration().getMaxBytesLocalDisk()));
}
}
if (!errors.isEmpty()) {
throw new InvalidConfigurationException("Can't reduce CacheManager byte tuning by so much", errors);
}
// Recalculate % based caches
long cacheAllocated = 0;
for (Cache cache : getAllActiveCaches(config.cacheManager)) {
cache.getCacheConfiguration().configCachePools(config.getConfiguration());
long bytesLocalHeap = cache.getCacheConfiguration().getMaxBytesLocalHeap();
cacheAllocated += bytesLocalHeap;
}
config.cacheManager.getOnHeapPool().setMaxSize(newValue - cacheAllocated);
}
},
maxBytesLocalDisk {
@Override
void applyChange(final PropertyChangeEvent evt, final RuntimeCfg config) {
if ((Long)evt.getOldValue() > (Long)evt.getNewValue()) {
// Double check for over-allocation again
for (CacheConfiguration cacheConfiguration : config.getConfiguration().getCacheConfigurations().values()) {
cacheConfiguration.isMaxBytesLocalDiskPercentageSet();
}
}
config.cacheManager.getOnDiskPool().setMaxSize((Long) evt.getNewValue());
// Recalculate % based caches ?
}
};
abstract void applyChange(PropertyChangeEvent evt, RuntimeCfg config);
}
private String cacheManagerName;
private boolean updateCheck = DEFAULT_UPDATE_CHECK;
private int defaultTransactionTimeoutInSeconds = DEFAULT_TRANSACTION_TIMEOUT;
private Monitoring monitoring = DEFAULT_MONITORING;
private DiskStoreConfiguration diskStoreConfiguration;
private CacheConfiguration defaultCacheConfiguration;
private final List cacheManagerPeerProviderFactoryConfiguration = new ArrayList();
private final List cacheManagerPeerListenerFactoryConfiguration = new ArrayList();
private SizeOfPolicyConfiguration sizeOfPolicyConfiguration;
private FactoryConfiguration transactionManagerLookupConfiguration;
private FactoryConfiguration cacheManagerEventListenerFactoryConfiguration;
private TerracottaClientConfiguration terracottaConfigConfiguration;
private final Map cacheConfigurations = new ConcurrentHashMap();
private ConfigurationSource configurationSource;
private boolean dynamicConfig = DEFAULT_DYNAMIC_CONFIG;
private Long maxBytesLocalHeap;
private String maxBytesLocalHeapInput;
private Long maxBytesLocalOffHeap;
private String maxBytesLocalOffHeapInput;
private Long maxBytesLocalDisk;
private String maxBytesLocalDiskInput;
/**
* Empty constructor, which is used by {@link ConfigurationFactory}, and can be also used programmatically.
*
* If you are using it programmtically you need to call the relevant add and setter methods in this class to populate everything.
*/
public Configuration() {
}
/**
* Returns all active caches managed by the Manager
* @param cacheManager The cacheManager
* @return the Set of all active caches
*/
static Set getAllActiveCaches(CacheManager cacheManager) {
final Set caches = new HashSet();
for (String cacheName : cacheManager.getCacheNames()) {
final Cache cache = cacheManager.getCache(cacheName);
if (cache != null) {
caches.add(cache);
}
}
return caches;
}
/**
* Freezes part of the configuration that need to be, and runs validation checks on the Configuration.
*
* @param cacheManager the CacheManager instance being configured
* @throws InvalidConfigurationException With all the associated errors
*/
public RuntimeCfg setupFor(final CacheManager cacheManager, final String fallbackName) throws InvalidConfigurationException {
if (cfg != null) {
return cfg;
}
final Collection errors = validate();
if (!errors.isEmpty()) {
throw new InvalidConfigurationException(errors);
}
cfg = new Configuration.RuntimeCfg(cacheManager, fallbackName);
return cfg;
}
/**
* Validates the current configuration
* @return the list of errors withing that configuration
*/
public Collection validate() {
final Collection errors = new ArrayList();
for (CacheConfiguration cacheConfiguration : cacheConfigurations.values()) {
errors.addAll(cacheConfiguration.validate(this));
}
return errors;
}
/**
* Checks whether the user explicitly set the maxBytesOnDisk
* @return true if set by user, false otherwise
* @see #setMaxBytesLocalDisk(Long)
*/
public boolean isMaxBytesLocalDiskSet() {
return maxBytesLocalDisk != null;
}
/**
* Checks whether the user explicitly set the maxBytesOffHeat
* @return true if set by user, false otherwise
* @see #setMaxBytesLocalOffHeap(Long)
*/
public boolean isMaxBytesLocalOffHeapSet() {
return maxBytesLocalOffHeap != null;
}
/**
* Checks whether the user explicitly set the maxBytesOnHeap
* @return true if set by user, false otherwise
* @see #setMaxBytesLocalHeap(Long)
*/
public boolean isMaxBytesLocalHeapSet() {
return maxBytesLocalHeap != null;
}
private static FactoryConfiguration getDefaultTransactionManagerLookupConfiguration() {
FactoryConfiguration configuration = new FactoryConfiguration();
configuration.setClass(DefaultTransactionManagerLookup.class.getName());
return configuration;
}
/**
* Builder to set the cache manager name.
*
* @see #setName(String)
* @param name
* the name to set
* @return this configuration instance
*/
public final Configuration name(String name) {
setName(name);
return this;
}
/**
* Allows BeanHandler to set the CacheManager name.
*/
public final void setName(String name) {
assertArgumentNotNull("name", name);
final String prop = "cacheManagerName";
final boolean publishChange = checkDynChange(prop);
String oldValue = this.cacheManagerName;
this.cacheManagerName = name;
if (publishChange) {
firePropertyChange(prop, oldValue, name);
}
}
private void assertArgumentNotNull(String name, Object object) {
if (object == null) {
throw new IllegalArgumentException(name + " cannot be null");
}
}
/**
* CacheManager name
*/
public final String getName() {
return this.cacheManagerName;
}
/**
* Builder to set the state of the automated update check.
*
* @param updateCheck
* {@code true} if the update check should be turned on; or {@code false} otherwise
* @return this configuration instance
*/
public final Configuration updateCheck(boolean updateCheck) {
setUpdateCheck(updateCheck);
return this;
}
/**
* Allows BeanHandler to set the updateCheck flag.
*/
public final void setUpdateCheck(boolean updateCheck) {
String prop = "updateCheck";
final boolean publish = checkDynChange(prop);
final boolean oldValue = this.updateCheck;
this.updateCheck = updateCheck;
if (publish) {
firePropertyChange(prop, oldValue, updateCheck);
}
}
/**
* Get flag for updateCheck
*/
public final boolean getUpdateCheck() {
return this.updateCheck;
}
/**
* Builder to set the default transaction timeout.
*
* @param defaultTransactionTimeoutInSeconds the default transaction timeout in seconds
* @return this configuration instance
*/
public final Configuration defaultTransactionTimeoutInSeconds(int defaultTransactionTimeoutInSeconds) {
setDefaultTransactionTimeoutInSeconds(defaultTransactionTimeoutInSeconds);
return this;
}
/**
* Allows BeanHandler to set the default transaction timeout.
*/
public final void setDefaultTransactionTimeoutInSeconds(int defaultTransactionTimeoutInSeconds) {
final String prop = "defaultTransactionTimeoutInSeconds";
final boolean publish = checkDynChange(prop);
final int oldValue = this.defaultTransactionTimeoutInSeconds;
this.defaultTransactionTimeoutInSeconds = defaultTransactionTimeoutInSeconds;
if (publish) {
firePropertyChange(prop, oldValue, defaultTransactionTimeoutInSeconds);
}
}
/**
* Get default transaction timeout
* @return default transaction timeout in seconds
*/
public final int getDefaultTransactionTimeoutInSeconds() {
return defaultTransactionTimeoutInSeconds;
}
/**
* Builder to set the monitoring approach
*
* @param monitoring
* an non-null instance of {@link Monitoring}
* @return this configuration instance
*/
public final Configuration monitoring(Monitoring monitoring) {
if (null == monitoring) {
throw new IllegalArgumentException("Monitoring value must be non-null");
}
final String prop = "monitoring";
final boolean publish = checkDynChange(prop);
final Monitoring oldValue = this.monitoring;
this.monitoring = monitoring;
if (publish) {
firePropertyChange(prop, oldValue, monitoring);
}
return this;
}
/**
* Allows BeanHandler to set the monitoring flag
*/
public final void setMonitoring(String monitoring) {
assertArgumentNotNull("Monitoring", monitoring);
monitoring(Monitoring.valueOf(Monitoring.class, monitoring.toUpperCase()));
}
/**
* Get monitoring type, should not be null
*/
public final Monitoring getMonitoring() {
return this.monitoring;
}
/**
* Builder to set the dynamic config capability
*
* @param dynamicConfig
* {@code true} if dynamic config should be enabled; or {@code false} otherwise.
* @return this configuration instance
*/
public final Configuration dynamicConfig(boolean dynamicConfig) {
setDynamicConfig(dynamicConfig);
return this;
}
/**
* Allows BeanHandler to set the dynamic configuration flag
*/
public final void setDynamicConfig(boolean dynamicConfig) {
final String prop = "dynamicConfig";
final boolean publish = checkDynChange(prop);
final boolean oldValue = this.dynamicConfig;
this.dynamicConfig = dynamicConfig;
if (publish) {
firePropertyChange(prop, oldValue, dynamicConfig);
}
}
/**
* Get flag for dynamicConfig
*/
public final boolean getDynamicConfig() {
return this.dynamicConfig;
}
/**
* Maximum amount of bytes the CacheManager will use on the heap
* @return amount of bytes, 0 is unbound
*/
public long getMaxBytesLocalHeap() {
return maxBytesLocalHeap == null ? DEFAULT_MAX_BYTES_ON_HEAP : maxBytesLocalHeap;
}
/**
* Sets maximum amount of bytes the CacheManager will use on the Disk Tier.
* @param maxBytesOnHeap String representation of the size.
* @see MemoryUnit#parseSizeInBytes(String)
*/
public void setMaxBytesLocalHeap(final String maxBytesOnHeap) {
assertArgumentNotNull("MaxBytesLocalHeap", maxBytesOnHeap);
if (isPercentage(maxBytesOnHeap)) {
long maxMemory = Runtime.getRuntime().maxMemory();
long mem = maxMemory / HUNDRED * parsePercentage(maxBytesOnHeap);
setMaxBytesLocalHeap(mem);
} else {
setMaxBytesLocalHeap(MemoryUnit.parseSizeInBytes(maxBytesOnHeap));
}
maxBytesLocalHeapInput = maxBytesOnHeap;
}
/**
* @return Original input for maxBytesLocalHeap
*/
public String getMaxBytesLocalHeapAsString() {
return maxBytesLocalHeapInput != null ? maxBytesLocalHeapInput : NumberFormat.getNumberInstance().format(getMaxBytesLocalHeap());
}
private int parsePercentage(final String stringValue) {
String trimmed = stringValue.trim();
int percentage = Integer.parseInt(trimmed.substring(0, trimmed.length() - 1));
if (percentage > HUNDRED || percentage < 0) {
throw new IllegalArgumentException("Percentage need values need to be between 0 and 100 inclusive, but got : " + percentage);
}
return percentage;
}
private boolean isPercentage(final String stringValue) {
String trimmed = stringValue.trim();
return trimmed.charAt(trimmed.length() - 1) == '%';
}
/**
* Sets the maximum amount of bytes the cache manager being configured will use on the OnHeap tier
* @param maxBytesOnHeap amount of bytes
*/
public void setMaxBytesLocalHeap(final Long maxBytesOnHeap) {
final String prop = "maxBytesLocalHeap";
verifyGreaterThanZero(maxBytesOnHeap, prop);
final boolean publish = checkDynChange(prop);
Long oldValue = this.maxBytesLocalHeap;
this.maxBytesLocalHeap = maxBytesOnHeap;
if (publish) {
firePropertyChange(prop, oldValue, maxBytesOnHeap);
}
}
/**
* Sets the maxOnHeap size for the cache being configured
* @param amount the amount of unit
* @param memoryUnit the actual unit
* @return this
* @see #setMaxBytesLocalHeap(Long)
*/
public Configuration maxBytesLocalHeap(final long amount, final MemoryUnit memoryUnit) {
setMaxBytesLocalHeap(memoryUnit.toBytes(amount));
return this;
}
/**
* Maximum amount of bytes the CacheManager will use on the OffHeap Tier.
* @return amount in bytes
*/
public long getMaxBytesLocalOffHeap() {
return maxBytesLocalOffHeap == null ? DEFAULT_MAX_BYTES_OFF_HEAP : maxBytesLocalOffHeap;
}
/**
* Sets maximum amount of bytes the CacheManager will use on the OffHeap Tier.
* @param maxBytesOffHeap String representation of the size.
* @see MemoryUnit#parseSizeInBytes(String)
*/
public void setMaxBytesLocalOffHeap(final String maxBytesOffHeap) {
assertArgumentNotNull("MaxBytesLocalOffHeap", maxBytesOffHeap);
if (isPercentage(maxBytesOffHeap)) {
long maxMemory = getOffHeapLimit();
long mem = maxMemory / HUNDRED * parsePercentage(maxBytesOffHeap);
setMaxBytesLocalOffHeap(mem);
} else {
setMaxBytesLocalOffHeap(MemoryUnit.parseSizeInBytes(maxBytesOffHeap));
}
maxBytesLocalOffHeapInput = maxBytesOffHeap;
}
/**
* @return Original input for maxBytesLocalOffHeap
*/
public String getMaxBytesLocalOffHeapAsString() {
return maxBytesLocalOffHeapInput != null ? maxBytesLocalOffHeapInput : NumberFormat.getNumberInstance().format(getMaxBytesLocalOffHeap());
}
private long getOffHeapLimit() {
try {
Class offHeapStoreClass = ClassLoaderUtil.loadClass(Cache.OFF_HEAP_STORE_CLASSNAME);
try {
return (Long)offHeapStoreClass.getMethod("getMaxBytesAllocatable").invoke(null);
} catch (NoSuchMethodException e) {
throw new CacheException("Cache: " + getName() + " cannot find static factory"
+ " method create(Ehcache, String)" + " in store class " + Cache.OFF_HEAP_STORE_CLASSNAME, e);
} catch (InvocationTargetException e) {
Throwable cause = e.getCause();
throw new CacheException("Cache: " + getName() + " cannot instantiate store "
+ Cache.OFF_HEAP_STORE_CLASSNAME, cause);
} catch (IllegalAccessException e) {
throw new CacheException("Cache: " + getName() + " cannot instantiate store "
+ Cache.OFF_HEAP_STORE_CLASSNAME, e);
}
} catch (ClassNotFoundException e) {
throw new CacheException("Cache " + getName()
+ " cannot be configured because the off-heap store class could not be found. "
+ "You must use an enterprise version of Ehcache to successfully enable overflowToOffHeap.");
}
}
/**
* Sets maximum amount of bytes the CacheManager will use on the OffHeap Tier.
* @param maxBytesOffHeap max bytes on disk in bytes. Needs be be greater than 0
*/
public void setMaxBytesLocalOffHeap(final Long maxBytesOffHeap) {
String prop = "maxBytesLocalOffHeap";
verifyGreaterThanZero(maxBytesOffHeap, prop);
boolean publish = checkDynChange(prop);
Long oldValue = this.maxBytesLocalOffHeap;
this.maxBytesLocalOffHeap = maxBytesOffHeap;
if (publish) {
firePropertyChange(prop, oldValue, maxBytesOffHeap);
}
}
/**
* Sets the maximum size for the OffHeap tier for all the caches this CacheManagers holds.
* @param amount the amount of unit
* @param memoryUnit the actual unit
* @return this
*/
public Configuration maxBytesLocalOffHeap(final long amount, final MemoryUnit memoryUnit) {
setMaxBytesLocalOffHeap(memoryUnit.toBytes(amount));
return this;
}
/**
* Maximum amount of bytes the CacheManager will use on the Disk Tier.
* @return amount in bytes
*/
public long getMaxBytesLocalDisk() {
return maxBytesLocalDisk == null ? DEFAULT_MAX_BYTES_ON_DISK : maxBytesLocalDisk;
}
/**
* Sets maximum amount of bytes the CacheManager will use on the Disk Tier.
* @param maxBytesOnDisk String representation of the size.
* @see MemoryUnit#parseSizeInBytes(String)
*/
public void setMaxBytesLocalDisk(final String maxBytesOnDisk) {
assertArgumentNotNull("MaxBytesLocalDisk", maxBytesOnDisk);
setMaxBytesLocalDisk(MemoryUnit.parseSizeInBytes(maxBytesOnDisk));
maxBytesLocalDiskInput = maxBytesOnDisk;
}
/**
* @return Original input for maxBytesLocalDisk
*/
public String getMaxBytesLocalDiskAsString() {
return maxBytesLocalDiskInput != null ? maxBytesLocalDiskInput : NumberFormat.getNumberInstance().format(getMaxBytesLocalDisk());
}
/**
* Sets maximum amount of bytes the CacheManager will use on the Disk Tier.
* @param maxBytesOnDisk max bytes on disk in bytes. Needs be be greater than 0
*/
public void setMaxBytesLocalDisk(final Long maxBytesOnDisk) {
String prop = "maxBytesLocalDisk";
verifyGreaterThanZero(maxBytesOnDisk, prop);
boolean publish = checkDynChange(prop);
Long oldValue = this.maxBytesLocalDisk;
this.maxBytesLocalDisk = maxBytesOnDisk;
if (publish) {
firePropertyChange(prop, oldValue, maxBytesOnDisk);
}
}
/**
* Sets the maxOnDisk size
* @param amount the amount of unit
* @param memoryUnit the actual unit
* @return this
* @see #setMaxBytesLocalDisk(Long)
*/
public Configuration maxBytesLocalDisk(final long amount, final MemoryUnit memoryUnit) {
setMaxBytesLocalDisk(memoryUnit.toBytes(amount));
return this;
}
private void verifyGreaterThanZero(final Long maxBytesOnHeap, final String field) {
if (maxBytesOnHeap != null && maxBytesOnHeap < 1) {
throw new IllegalArgumentException(field + " has to be larger than 0");
}
}
/**
* Builder to add a disk store to the cache manager, only one disk store can be added.
*
* @param diskStoreConfigurationParameter
* the disk store configuration to use
* @return this configuration instance
* @throws ObjectExistsException
* if the disk store has already been configured
*/
public final Configuration diskStore(DiskStoreConfiguration diskStoreConfigurationParameter) throws ObjectExistsException {
addDiskStore(diskStoreConfigurationParameter);
return this;
}
/**
* Allows BeanHandler to add disk store location to the configuration.
*/
public final void addDiskStore(DiskStoreConfiguration diskStoreConfigurationParameter) throws ObjectExistsException {
if (diskStoreConfiguration != null) {
throw new ObjectExistsException("The Disk Store has already been configured");
}
final String prop = "diskStoreConfiguration";
boolean publish = checkDynChange(prop);
DiskStoreConfiguration oldValue = diskStoreConfiguration;
diskStoreConfiguration = diskStoreConfigurationParameter;
if (publish) {
firePropertyChange(prop, oldValue, diskStoreConfiguration);
}
}
/**
* Builder to set the default SizeOfPolicyConfiguration for this cache manager.
*
* @param sizeOfPolicyConfiguration the SizeOfPolicy Configuration
* @return this configuration instance
*/
public final Configuration sizeOfPolicy(SizeOfPolicyConfiguration sizeOfPolicyConfiguration) {
addSizeOfPolicy(sizeOfPolicyConfiguration);
return this;
}
/**
* Sets the default SizeOfPolicyConfiguration for this cache manager.
*
* @param sizeOfPolicy the SizeOfPolicy Configuration
*/
public final void addSizeOfPolicy(SizeOfPolicyConfiguration sizeOfPolicy) {
if (sizeOfPolicyConfiguration != null) {
throw new ObjectExistsException("The SizeOfPolicy class has already been configured");
}
sizeOfPolicyConfiguration = sizeOfPolicy;
}
/**
* Builder to add a transaction manager lookup class to the cache manager, only one of these can be added.
*
* @param transactionManagerLookupParameter
* the transaction manager lookup class to use
* @return this configuration instance
* @throws ObjectExistsException
* if the transaction manager lookup has already been configured
*/
public final Configuration transactionManagerLookup(FactoryConfiguration transactionManagerLookupParameter)
throws ObjectExistsException {
addTransactionManagerLookup(transactionManagerLookupParameter);
return this;
}
/**
* Allows BeanHandler to add transaction manager lookup to the configuration.
*/
public final void addTransactionManagerLookup(FactoryConfiguration transactionManagerLookupParameter) throws ObjectExistsException {
if (transactionManagerLookupConfiguration != null) {
throw new ObjectExistsException("The TransactionManagerLookup class has already been configured");
}
final String prop = "transactionManagerLookupConfiguration";
boolean publish = checkDynChange(prop);
FactoryConfiguration oldValue = this.transactionManagerLookupConfiguration;
transactionManagerLookupConfiguration = transactionManagerLookupParameter;
if (publish) {
firePropertyChange(prop, oldValue, transactionManagerLookupParameter);
}
}
/**
* Builder to set the event lister through a factory, only one of these can be added and subsequent calls are ignored.
*
* @return this configuration instance
*/
public final Configuration cacheManagerEventListenerFactory(FactoryConfiguration cacheManagerEventListenerFactoryConfiguration) {
addCacheManagerEventListenerFactory(cacheManagerEventListenerFactoryConfiguration);
return this;
}
/**
* Allows BeanHandler to add the CacheManagerEventListener to the configuration.
*/
public final void addCacheManagerEventListenerFactory(FactoryConfiguration cacheManagerEventListenerFactoryConfiguration) {
final String prop = "cacheManagerEventListenerFactoryConfiguration";
boolean publish = checkDynChange(prop);
if (this.cacheManagerEventListenerFactoryConfiguration == null) {
this.cacheManagerEventListenerFactoryConfiguration = cacheManagerEventListenerFactoryConfiguration;
if (publish) {
firePropertyChange(prop, null, cacheManagerEventListenerFactoryConfiguration);
}
}
}
/**
* Builder method to add a peer provider through a factory.
*
* @return this configuration instance
*/
public final Configuration cacheManagerPeerProviderFactory(FactoryConfiguration factory) {
addCacheManagerPeerProviderFactory(factory);
return this;
}
/**
* Adds a CacheManagerPeerProvider through FactoryConfiguration.
*/
public final void addCacheManagerPeerProviderFactory(FactoryConfiguration factory) {
final String prop = "cacheManagerPeerProviderFactoryConfiguration";
boolean publish = checkDynChange(prop);
List oldValue = null;
if (publish) {
oldValue = new ArrayList(cacheManagerPeerProviderFactoryConfiguration);
}
cacheManagerPeerProviderFactoryConfiguration.add(factory);
if (publish) {
firePropertyChange(prop, oldValue, cacheManagerPeerProviderFactoryConfiguration);
}
}
/**
* Builder method to add a peer listener through a factory.
*
* @return this configuration instance
*/
public final Configuration cacheManagerPeerListenerFactory(FactoryConfiguration factory) {
addCacheManagerPeerListenerFactory(factory);
return this;
}
/**
* Adds a CacheManagerPeerListener through FactoryConfiguration.
*/
public final void addCacheManagerPeerListenerFactory(FactoryConfiguration factory) {
final String prop = "cacheManagerPeerListenerFactoryConfiguration";
boolean publish = checkDynChange(prop);
List oldValue = null;
if (publish) {
oldValue = new ArrayList(cacheManagerPeerListenerFactoryConfiguration);
}
cacheManagerPeerListenerFactoryConfiguration.add(factory);
if (publish) {
firePropertyChange(prop, oldValue, cacheManagerPeerListenerFactoryConfiguration);
}
}
/**
* Builder method to Terracotta capabilities to the cache manager through a dedicated configuration, this can only be used once.
*
* @return this configuration instance
* @throws ObjectExistsException
* if the Terracotta config has already been configured
*/
public final Configuration terracotta(TerracottaClientConfiguration terracottaConfiguration) throws ObjectExistsException {
addTerracottaConfig(terracottaConfiguration);
return this;
}
/**
* Allows BeanHandler to add a Terracotta configuration to the configuration
*/
public final void addTerracottaConfig(TerracottaClientConfiguration terracottaConfiguration) throws ObjectExistsException {
if (this.terracottaConfigConfiguration != null) {
throw new ObjectExistsException("The TerracottaConfig has already been configured");
}
final String prop = "terracottaConfigConfiguration";
final boolean publish = checkDynChange(prop);
final TerracottaClientConfiguration oldValue = this.terracottaConfigConfiguration;
this.terracottaConfigConfiguration = terracottaConfiguration;
if (publish) {
firePropertyChange(prop, oldValue, terracottaConfiguration);
}
}
/**
* Builder method to set the default cache configuration, this can only be used once.
*
* @return this configuration instance
* @throws ObjectExistsException
* if the default cache config has already been configured
*/
public final Configuration defaultCache(CacheConfiguration defaultCacheConfiguration) throws ObjectExistsException {
setDefaultCacheConfiguration(defaultCacheConfiguration);
return this;
}
/**
* Allows BeanHandler to add a default configuration to the configuration.
*/
public final void addDefaultCache(CacheConfiguration defaultCacheConfiguration) throws ObjectExistsException {
if (this.defaultCacheConfiguration != null) {
throw new ObjectExistsException("The Default Cache has already been configured");
}
setDefaultCacheConfiguration(defaultCacheConfiguration);
}
/**
* Builder to add a new cache through its config
*
* @return this configuration instance
* @throws ObjectExistsException
* if a cache with the same name already exists, or if the name conflicts with the name of the default cache
*/
public final Configuration cache(CacheConfiguration cacheConfiguration) throws ObjectExistsException {
addCache(cacheConfiguration);
return this;
}
/**
* Allows BeanHandler to add Cache Configurations to the configuration.
*/
public final void addCache(CacheConfiguration cacheConfiguration) throws ObjectExistsException {
addCache(cacheConfiguration, true);
}
/**
* Maintains the known Cache's configuration map in this Configuration
* @param cacheConfiguration the CacheConfiguration
* @param strict true if added regularly, validation dyn config constraints, false if added through the cache being added
*/
void addCache(CacheConfiguration cacheConfiguration, final boolean strict) throws ObjectExistsException {
final String prop = "cacheConfigurations";
Object oldValue = null;
boolean publishChange = strict && checkDynChange(prop);
if (publishChange) {
oldValue = new HashMap(cacheConfigurations);
}
if (cacheConfigurations.get(cacheConfiguration.name) != null) {
throw new ObjectExistsException("Cannot create cache: " + cacheConfiguration.name + " with the same name as an existing one.");
}
if (cacheConfiguration.name.equalsIgnoreCase(net.sf.ehcache.Cache.DEFAULT_CACHE_NAME)) {
throw new ObjectExistsException("The Default Cache has already been configured");
}
cacheConfigurations.put(cacheConfiguration.name, cacheConfiguration);
if (publishChange) {
firePropertyChange(prop, oldValue, cacheConfigurations);
}
}
private boolean checkDynChange(final String prop) {
if (!propertyChangeListeners.isEmpty()) {
try {
if (cfg != null) {
DynamicProperty.valueOf(prop);
}
} catch (IllegalArgumentException e) {
throw new IllegalStateException(this.getClass().getName() + "." + prop + " can't be changed dynamically");
}
return true;
} else {
return false;
}
}
/**
* Gets a Map of cacheConfigurations.
*/
public final Set getCacheConfigurationsKeySet() {
return cacheConfigurations.keySet();
}
/**
* @return the configuration's default cache configuration
*/
public final CacheConfiguration getDefaultCacheConfiguration() {
return defaultCacheConfiguration;
}
/**
* @param defaultCacheConfiguration
*/
public final void setDefaultCacheConfiguration(CacheConfiguration defaultCacheConfiguration) {
final String prop = "defaultCacheConfiguration";
final boolean publish = checkDynChange(prop);
final CacheConfiguration oldValue = this.defaultCacheConfiguration;
this.defaultCacheConfiguration = defaultCacheConfiguration;
if (publish) {
firePropertyChange(prop, oldValue, defaultCacheConfiguration);
}
}
/**
* Gets the disk store configuration.
*/
public final DiskStoreConfiguration getDiskStoreConfiguration() {
return diskStoreConfiguration;
}
/**
* Gets the SizeOf policy configuration.
*/
public final SizeOfPolicyConfiguration getSizeOfPolicyConfiguration() {
if (sizeOfPolicyConfiguration == null) {
return DEFAULT_SIZEOF_POLICY_CONFIGURATION;
}
return sizeOfPolicyConfiguration;
}
/**
* Gets the transaction manager lookup configuration.
*/
public final FactoryConfiguration getTransactionManagerLookupConfiguration() {
if (transactionManagerLookupConfiguration == null) {
return getDefaultTransactionManagerLookupConfiguration();
}
return transactionManagerLookupConfiguration;
}
/**
* Gets the CacheManagerPeerProvider factory configuration.
*/
public final List getCacheManagerPeerProviderFactoryConfiguration() {
return cacheManagerPeerProviderFactoryConfiguration;
}
/**
* Gets the CacheManagerPeerListener factory configuration.
*/
public final List getCacheManagerPeerListenerFactoryConfigurations() {
return cacheManagerPeerListenerFactoryConfiguration;
}
/**
* Gets the CacheManagerEventListener factory configuration.
*/
public final FactoryConfiguration getCacheManagerEventListenerFactoryConfiguration() {
return cacheManagerEventListenerFactoryConfiguration;
}
/**
* Gets the TerracottaClientConfiguration
*/
public final TerracottaClientConfiguration getTerracottaConfiguration() {
return this.terracottaConfigConfiguration;
}
/**
* Gets a Map of cache configurations, keyed by name.
*/
public final Map getCacheConfigurations() {
return cacheConfigurations;
}
/**
* Builder to set the configuration source.
*
* @return this configuration instance
*/
public final Configuration source(ConfigurationSource configurationSource) {
setSource(configurationSource);
return this;
}
/**
* Sets the configuration source.
*
* @param configurationSource
* an informative description of the source, preferably
* including the resource name and location.
*/
public final void setSource(ConfigurationSource configurationSource) {
final String prop = "configurationSource";
final boolean publish = checkDynChange(prop);
final ConfigurationSource oldValue = this.configurationSource;
this.configurationSource = configurationSource;
if (publish) {
firePropertyChange(prop, oldValue, configurationSource);
}
}
/**
* Gets a description of the source from which this configuration was created.
*/
public final ConfigurationSource getConfigurationSource() {
return configurationSource;
}
/**
* Adds a {@link PropertyChangeListener} for this configuration
* @param listener the listener instance
* @return true if added, false otherwise
*/
public boolean addPropertyChangeListener(final PropertyChangeListener listener) {
return this.propertyChangeListeners.add(listener);
}
/**
* Removes a {@link PropertyChangeListener} for this configuration
* @param listener the listener to be removed
* @return true if removed, false otherwise
*/
public boolean removePropertyChangeListener(final PropertyChangeListener listener) {
return this.propertyChangeListeners.remove(listener);
}
private void firePropertyChange(final String prop, final T oldValue, final T newValue) {
if ((oldValue != null && !oldValue.equals(newValue)) || newValue != null) {
for (PropertyChangeListener propertyChangeListener : propertyChangeListeners) {
propertyChangeListener.propertyChange(new PropertyChangeEvent(Configuration.this, prop, oldValue, newValue));
}
}
}
/**
* Runtime configuration as being used by the CacheManager
*/
public class RuntimeCfg implements PropertyChangeListener {
private final CacheManager cacheManager;
private volatile String cacheManagerName;
private final boolean named;
private TransactionManagerLookup transactionManagerLookup;
private boolean allowsSizeBasedTunings;
/**
* Constructor
* @param cacheManager the cacheManager instance using this config
* @param fallbackName the fallbackName in case the configuration doesn't declare an explicit name
*/
public RuntimeCfg(final CacheManager cacheManager, final String fallbackName) {
if (Configuration.this.cacheManagerName != null) {
this.cacheManagerName = Configuration.this.cacheManagerName;
named = true;
} else if (hasTerracottaClusteredCaches()) {
this.cacheManagerName = CacheManager.DEFAULT_NAME;
named = false;
} else {
this.cacheManagerName = fallbackName;
named = false;
}
FactoryConfiguration lookupConfiguration = getTransactionManagerLookupConfiguration();
try {
Properties properties = PropertyUtil.parseProperties(lookupConfiguration.getProperties(), lookupConfiguration
.getPropertySeparator());
Class transactionManagerLookupClass = (Class) Class
.forName(lookupConfiguration.getFullyQualifiedClassPath());
this.transactionManagerLookup = transactionManagerLookupClass.newInstance();
this.transactionManagerLookup.setProperties(properties);
} catch (Exception e) {
LOG.error("could not instantiate transaction manager lookup class: {}", lookupConfiguration.getFullyQualifiedClassPath(), e);
}
this.cacheManager = cacheManager;
propertyChangeListeners.add(this);
allowsSizeBasedTunings = defaultCacheConfiguration == null || !defaultCacheConfiguration.isCountBasedTuned();
for (CacheConfiguration cacheConfiguration : cacheConfigurations.values()) {
if (cacheConfiguration.isCountBasedTuned()) {
allowsSizeBasedTunings = false;
break;
}
}
}
/**
* @return the CacheManager's name
*/
public String getCacheManagerName() {
return cacheManagerName;
}
/**
* @return Whether dynamic config changes are available
*/
public boolean allowsDynamicCacheConfig() {
return getDynamicConfig();
}
/**
* @return Whether the CacheManager is explicitly named
*/
public boolean isNamed() {
return named;
}
/**
* @return the underlying Configuration instance
*/
public Configuration getConfiguration() {
return Configuration.this;
}
/**
* @return Whether terracotta clustering is being used and rejoin is enabled
*/
public boolean isTerracottaRejoin() {
TerracottaClientConfiguration terracottaConfiguration = getTerracottaConfiguration();
return terracottaConfiguration != null && terracottaConfiguration.isRejoin();
}
private boolean hasTerracottaClusteredCaches() {
if (defaultCacheConfiguration != null
&& defaultCacheConfiguration.isTerracottaClustered()) {
return true;
} else {
for (CacheConfiguration config : cacheConfigurations.values()) {
if (config.isTerracottaClustered()) {
return true;
}
}
}
return false;
}
/**
* @return The transactionManagerLookup instance
*/
public TransactionManagerLookup getTransactionManagerLookup() {
return transactionManagerLookup;
}
/**
* Removes a cache from the known list
* @param cacheConfiguration the cacheConfiguration to be removed
*/
public void removeCache(final CacheConfiguration cacheConfiguration) {
if (cacheManager.getOnHeapPool() != null) {
cacheManager.getOnHeapPool().setMaxSize(cacheManager.getOnHeapPool()
.getMaxSize() + cacheConfiguration.getMaxBytesLocalHeap());
}
if (cacheManager.getOnDiskPool() != null) {
cacheManager.getOnDiskPool().setMaxSize(cacheManager.getOnDiskPool()
.getMaxSize() + cacheConfiguration.getMaxBytesLocalDisk());
}
getConfiguration().getCacheConfigurations().remove(cacheConfiguration.getName());
}
/**
* Handles changes to the Configuration this RuntimeCfg backs
* @param evt the PropertyChangeEvent
*/
public void propertyChange(final PropertyChangeEvent evt) {
try {
DynamicProperty.valueOf(evt.getPropertyName()).applyChange(evt, this);
} catch (IllegalArgumentException e) {
throw new IllegalStateException(evt.getPropertyName() + " can't be changed dynamically");
}
}
/**
* Checks whether the CacheManager uses a OffHeapPool
* @return true if using one, false otherwise
*/
public boolean hasOffHeapPool() {
return isMaxBytesLocalOffHeapSet();
}
}
}