com.hazelcast.config.AbstractCacheConfig Maven / Gradle / Ivy
package com.hazelcast.config;
import com.hazelcast.nio.serialization.DataSerializable;
import javax.cache.configuration.CacheEntryListenerConfiguration;
import javax.cache.configuration.CompleteConfiguration;
import javax.cache.configuration.Factory;
import javax.cache.expiry.EternalExpiryPolicy;
import javax.cache.expiry.ExpiryPolicy;
import javax.cache.integration.CacheLoader;
import javax.cache.integration.CacheWriter;
import java.util.Collections;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
/**
* Base class for {@link CacheConfig}
*/
abstract class AbstractCacheConfig implements CompleteConfiguration, DataSerializable {
/**
* The number of minimum backup counter
*/
public static final int MIN_BACKUP_COUNT = 0;
/**
* The number of maximum backup counter
*/
public static final int MAX_BACKUP_COUNT = 6;
/**
* The number of default backup counter
*/
public static final int DEFAULT_BACKUP_COUNT = 1;
/**
* Default InMemory Format.
*/
public static final InMemoryFormat DEFAULT_IN_MEMORY_FORMAT = InMemoryFormat.BINARY;
/**
* Default Eviction Policy.
*/
public static final EvictionPolicy DEFAULT_EVICTION_POLICY = EvictionPolicy.RANDOM;
/**
* The {@link CacheEntryListenerConfiguration}s for the {@link javax.cache.configuration.Configuration}.
*/
protected Set> listenerConfigurations;
/**
* The type of keys for {@link javax.cache.Cache}s configured with this
* {@link javax.cache.configuration.Configuration}.
*/
protected Class keyType;
/**
* The type of values for {@link javax.cache.Cache}s configured with this
* {@link javax.cache.configuration.Configuration}.
*/
protected Class valueType;
/**
* The {@link javax.cache.configuration.Factory} for the {@link javax.cache.integration.CacheLoader}.
*/
protected Factory> cacheLoaderFactory;
/**
* The {@link Factory} for the {@link javax.cache.integration.CacheWriter}.
*/
protected Factory> cacheWriterFactory;
/**
* The {@link Factory} for the {@link javax.cache.expiry.ExpiryPolicy}.
*/
protected Factory expiryPolicyFactory;
/**
* A flag indicating if "read-through" mode is required.
*/
protected boolean isReadThrough;
/**
* A flag indicating if "write-through" mode is required.
*/
protected boolean isWriteThrough;
/**
* A flag indicating if statistics gathering is enabled.
*/
protected boolean isStatisticsEnabled;
/**
* A flag indicating if the cache will be store-by-value or store-by-reference.
*/
protected boolean isStoreByValue;
/**
* Whether management is enabled
*/
protected boolean isManagementEnabled;
public AbstractCacheConfig() {
this.keyType = (Class) Object.class;
this.valueType = (Class) Object.class;
this.listenerConfigurations = createConcurrentSet();
this.cacheLoaderFactory = null;
this.cacheWriterFactory = null;
this.expiryPolicyFactory = EternalExpiryPolicy.factoryOf();
this.isReadThrough = false;
this.isWriteThrough = false;
this.isStatisticsEnabled = false;
this.isStoreByValue = true;
this.isManagementEnabled = false;
}
public AbstractCacheConfig(CompleteConfiguration configuration) {
this.keyType = configuration.getKeyType();
this.valueType = configuration.getValueType();
this.listenerConfigurations = createConcurrentSet();
for (CacheEntryListenerConfiguration listenerConf : configuration.getCacheEntryListenerConfigurations()) {
listenerConfigurations.add(listenerConf);
}
this.cacheLoaderFactory = configuration.getCacheLoaderFactory();
this.cacheWriterFactory = configuration.getCacheWriterFactory();
Factory factory = configuration.getExpiryPolicyFactory();
this.expiryPolicyFactory = factory == null ? EternalExpiryPolicy.factoryOf() : factory;
this.isReadThrough = configuration.isReadThrough();
this.isWriteThrough = configuration.isWriteThrough();
this.isStatisticsEnabled = configuration.isStatisticsEnabled();
this.isStoreByValue = configuration.isStoreByValue();
this.isManagementEnabled = configuration.isManagementEnabled();
}
/**
* Add a configuration for a {@link javax.cache.event.CacheEntryListener}.
*
* @param cacheEntryListenerConfiguration the {@link CacheEntryListenerConfiguration}
* @return the {@link CacheConfig}
* @throws IllegalArgumentException is the same CacheEntryListenerConfiguration
* is used more than once
*/
public CompleteConfiguration addCacheEntryListenerConfiguration(
CacheEntryListenerConfiguration cacheEntryListenerConfiguration) {
if (cacheEntryListenerConfiguration == null) {
throw new NullPointerException("CacheEntryListenerConfiguration can't be null");
}
if (!listenerConfigurations.add(cacheEntryListenerConfiguration)) {
throw new IllegalArgumentException("A CacheEntryListenerConfiguration can "
+ "be registered only once");
}
return this;
}
/**
* Remove a configuration for a {@link javax.cache.event.CacheEntryListener}.
*
* @param cacheEntryListenerConfiguration the {@link CacheEntryListenerConfiguration} to remove
* @return the {@link CacheConfig}
*/
public CompleteConfiguration removeCacheEntryListenerConfiguration(
CacheEntryListenerConfiguration cacheEntryListenerConfiguration) {
if (cacheEntryListenerConfiguration == null) {
throw new NullPointerException("CacheEntryListenerConfiguration can't be null");
}
listenerConfigurations.remove(cacheEntryListenerConfiguration);
return this;
}
@Override
public Iterable> getCacheEntryListenerConfigurations() {
return listenerConfigurations;
}
@Override
public boolean isReadThrough() {
return isReadThrough;
}
@Override
public boolean isWriteThrough() {
return isWriteThrough;
}
@Override
public boolean isStatisticsEnabled() {
return isStatisticsEnabled;
}
/**
* Sets whether statistics gathering is enabled on a cache.
*
* Statistics may be enabled or disabled at runtime via
* {@link javax.cache.CacheManager#enableStatistics(String, boolean)}.
*
* @param enabled true to enable statistics, false to disable.
* @return the {@link CacheConfig}
*/
public CompleteConfiguration setStatisticsEnabled(boolean enabled) {
this.isStatisticsEnabled = enabled;
return this;
}
@Override
public boolean isManagementEnabled() {
return isManagementEnabled;
}
/**
* Sets whether management is enabled on a cache.
*
* Management may be enabled or disabled at runtime via
* {@link javax.cache.CacheManager#enableManagement(String, boolean)}.
*
* @param enabled true to enable statistics, false to disable.
* @return the {@link CacheConfig}
*/
public CompleteConfiguration setManagementEnabled(boolean enabled) {
this.isManagementEnabled = enabled;
return this;
}
@Override
public Factory> getCacheLoaderFactory() {
return cacheLoaderFactory;
}
@Override
public Factory> getCacheWriterFactory() {
return cacheWriterFactory;
}
@Override
public Factory getExpiryPolicyFactory() {
return expiryPolicyFactory;
}
@Override
public Class getKeyType() {
return keyType;
}
@Override
public Class getValueType() {
return valueType;
}
/**
* Sets the expected type of keys and values for a {@link javax.cache.Cache}
* configured with this {@link javax.cache.configuration.Configuration}. Setting both to
* Object.class means type-safety checks are not required.
*
* This is used by {@link javax.cache.CacheManager} to ensure that the key and value
* types are the same as those configured for the {@link javax.cache.Cache} prior to
* returning a requested cache from this method.
*
* Implementations may further perform type checking on mutative cache operations
* and throw a {@link ClassCastException} if these checks fail.
*
* @param keyType the expected key type
* @param valueType the expected value type
* @return the {@link CacheConfig}
* @throws NullPointerException should the key or value type be null
* @see javax.cache.CacheManager#getCache(String, Class, Class)
*/
public CompleteConfiguration setTypes(Class keyType, Class valueType) {
if (keyType == null || valueType == null) {
throw new NullPointerException("keyType and/or valueType can't be null");
}
this.keyType = keyType;
this.valueType = valueType;
return this;
}
@Override
public boolean isStoreByValue() {
return isStoreByValue;
}
/**
* Set if a configured cache should use store-by-value or store-by-reference
* semantics.
*
* @param storeByValue true if store-by-value is required,
* false for store-by-reference
* @return the {@link CacheConfig}
*/
public CompleteConfiguration setStoreByValue(boolean storeByValue) {
this.isStoreByValue = storeByValue;
return this;
}
protected Set> createConcurrentSet() {
return Collections.newSetFromMap(new ConcurrentHashMap, Boolean>());
}
@Override
public int hashCode() {
int result = cacheLoaderFactory != null ? cacheLoaderFactory.hashCode() : 0;
result = 31 * result + listenerConfigurations.hashCode();
result = 31 * result + keyType.hashCode();
result = 31 * result + valueType.hashCode();
result = 31 * result + (cacheWriterFactory != null ? cacheWriterFactory.hashCode() : 0);
result = 31 * result + (expiryPolicyFactory != null ? expiryPolicyFactory.hashCode() : 0);
result = 31 * result + (isReadThrough ? 1 : 0);
result = 31 * result + (isWriteThrough ? 1 : 0);
result = 31 * result + (isStatisticsEnabled ? 1 : 0);
result = 31 * result + (isStoreByValue ? 1 : 0);
result = 31 * result + (isManagementEnabled ? 1 : 0);
return result;
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
AbstractCacheConfig that = (AbstractCacheConfig) o;
if (isManagementEnabled != that.isManagementEnabled) {
return false;
}
if (isReadThrough != that.isReadThrough) {
return false;
}
if (isStatisticsEnabled != that.isStatisticsEnabled) {
return false;
}
if (isStoreByValue != that.isStoreByValue) {
return false;
}
if (isWriteThrough != that.isWriteThrough) {
return false;
}
if (cacheLoaderFactory != null ? !cacheLoaderFactory.equals(that.cacheLoaderFactory) : that.cacheLoaderFactory != null) {
return false;
}
if (cacheWriterFactory != null ? !cacheWriterFactory.equals(that.cacheWriterFactory) : that.cacheWriterFactory != null) {
return false;
}
if (expiryPolicyFactory != null
? !expiryPolicyFactory.equals(that.expiryPolicyFactory) : that.expiryPolicyFactory != null) {
return false;
}
if (!keyType.equals(that.keyType)) {
return false;
}
if (!listenerConfigurations.equals(that.listenerConfigurations)) {
return false;
}
if (!valueType.equals(that.valueType)) {
return false;
}
return true;
}
}