org.redisson.hibernate.region.BaseRegion Maven / Gradle / Ivy
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/**
* Copyright (c) 2013-2024 Nikita Koksharov
*
* 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 org.redisson.hibernate.region;
import org.hibernate.cache.CacheException;
import org.hibernate.cache.spi.CacheDataDescription;
import org.hibernate.cache.spi.GeneralDataRegion;
import org.hibernate.cache.spi.RegionFactory;
import org.hibernate.cache.spi.TransactionalDataRegion;
import org.hibernate.engine.spi.SharedSessionContractImplementor;
import org.redisson.api.RFuture;
import org.redisson.api.RMapCache;
import org.redisson.connection.ServiceManager;
import org.redisson.hibernate.RedissonRegionFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Collections;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.TimeUnit;
/**
*
* @author Nikita Koksharov
*
*/
public class BaseRegion implements TransactionalDataRegion, GeneralDataRegion {
private final Logger logger = LoggerFactory.getLogger(getClass());
final RMapCache mapCache;
final RegionFactory regionFactory;
final CacheDataDescription metadata;
final ServiceManager serviceManager;
int ttl;
int maxIdle;
int size;
boolean fallback;
volatile boolean fallbackMode;
public BaseRegion(RMapCache mapCache, ServiceManager serviceManager, RegionFactory regionFactory, CacheDataDescription metadata, Properties properties, String defaultKey) {
super();
this.mapCache = mapCache;
this.regionFactory = regionFactory;
this.metadata = metadata;
this.serviceManager = serviceManager;
String maxEntries = getProperty(properties, mapCache.getName(), defaultKey, RedissonRegionFactory.MAX_ENTRIES_SUFFIX);
if (maxEntries != null) {
size = Integer.valueOf(maxEntries);
mapCache.setMaxSize(size);
}
String timeToLive = getProperty(properties, mapCache.getName(), defaultKey, RedissonRegionFactory.TTL_SUFFIX);
if (timeToLive != null) {
ttl = Integer.valueOf(timeToLive);
}
String maxIdleTime = getProperty(properties, mapCache.getName(), defaultKey, RedissonRegionFactory.MAX_IDLE_SUFFIX);
if (maxIdleTime != null) {
maxIdle = Integer.valueOf(maxIdleTime);
}
String fallbackValue = (String) properties.getOrDefault(RedissonRegionFactory.FALLBACK, "false");
fallback = Boolean.valueOf(fallbackValue);
}
private String getProperty(Properties properties, String name, String defaultKey, String suffix) {
String value = properties.getProperty(RedissonRegionFactory.CONFIG_PREFIX + name + suffix);
if (value != null) {
return value;
}
String defValue = properties.getProperty(RedissonRegionFactory.CONFIG_PREFIX + defaultKey + suffix);
if (defValue != null) {
return defValue;
}
return null;
}
private void ping() {
fallbackMode = true;
serviceManager.newTimeout(t -> {
RFuture future = mapCache.isExistsAsync();
future.whenComplete((r, ex) -> {
if (ex == null) {
fallbackMode = false;
} else {
ping();
}
});
}, 1, TimeUnit.SECONDS);
}
@Override
public boolean isTransactionAware() {
// TODO Auto-generated method stub
return false;
}
@Override
public CacheDataDescription getCacheDataDescription() {
return metadata;
}
@Override
public String getName() {
return mapCache.getName();
}
@Override
public void destroy() throws CacheException {
try {
mapCache.destroy();
} catch (Exception e) {
throw new CacheException(e);
}
}
@Override
public boolean contains(Object key) {
if (fallbackMode) {
return false;
}
try {
return mapCache.containsKey(key);
} catch (Exception e) {
if (fallback) {
ping();
logger.error(e.getMessage(), e);
return false;
}
throw new CacheException(e);
}
}
@Override
public long getSizeInMemory() {
return mapCache.sizeInMemory();
}
@Override
public long getElementCountInMemory() {
return mapCache.size();
}
@Override
public long getElementCountOnDisk() {
return -1;
}
@Override
public Map toMap() {
return Collections.unmodifiableMap(mapCache);
}
@Override
public long nextTimestamp() {
return regionFactory.nextTimestamp();
}
@Override
public int getTimeout() {
// 60 seconds (normalized value)
return (1 << 12) * 60000;
}
@Override
public Object get(SharedSessionContractImplementor session, Object key) throws CacheException {
if (fallbackMode) {
return null;
}
try {
if (maxIdle == 0 && size == 0) {
return mapCache.getWithTTLOnly(key);
}
return mapCache.get(key);
} catch (Exception e) {
if (fallback) {
ping();
logger.error(e.getMessage(), e);
return null;
}
throw new CacheException(e);
}
}
@Override
public void put(SharedSessionContractImplementor session, Object key, Object value) throws CacheException {
if (fallbackMode) {
return;
}
try {
mapCache.fastPut(key, value, ttl, TimeUnit.MILLISECONDS, maxIdle, TimeUnit.MILLISECONDS);
} catch (Exception e) {
if (fallback) {
ping();
logger.error(e.getMessage(), e);
return;
}
throw new CacheException(e);
}
}
@Override
public void evict(Object key) throws CacheException {
if (fallbackMode) {
return;
}
try {
mapCache.fastRemove(key);
} catch (Exception e) {
if (fallback) {
ping();
logger.error(e.getMessage(), e);
return;
}
throw new CacheException(e);
}
}
@Override
public void evictAll() throws CacheException {
if (fallbackMode) {
return;
}
try {
mapCache.clear();
} catch (Exception e) {
if (fallback) {
ping();
logger.error(e.getMessage(), e);
return;
}
throw new CacheException(e);
}
}
}