/**
* Copyright 2016 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.eviction;
import java.util.concurrent.ConcurrentMap;
import org.redisson.command.CommandAsyncExecutor;
import io.netty.util.internal.PlatformDependent;
/**
* Eviction scheduler.
* Deletes expired entries in time interval between 5 seconds to 2 hours.
* It analyzes deleted amount of expired keys
* and 'tune' next execution delay depending on it.
*
* @author Nikita Koksharov
*
*/
public class EvictionScheduler {
private final ConcurrentMap<String, EvictionTask> tasks = PlatformDependent.newConcurrentHashMap();
private final CommandAsyncExecutor executor;
public EvictionScheduler(CommandAsyncExecutor executor) {
this.executor = executor;
}
public void scheduleCleanMultimap(String name, String timeoutSetName) {
EvictionTask task = new MultimapEvictionTask(name, timeoutSetName, executor);
EvictionTask prevTask = tasks.putIfAbsent(name, task);
if (prevTask == null) {
task.schedule();
}
}
public void scheduleJCache(String name, String timeoutSetName, String expiredChannelName) {
EvictionTask task = new JCacheEvictionTask(name, timeoutSetName, expiredChannelName, executor);
EvictionTask prevTask = tasks.putIfAbsent(name, task);
if (prevTask == null) {
task.schedule();
}
}
public void schedule(String name, long shiftInMilliseconds) {
EvictionTask task = new ScoredSetEvictionTask(name, executor, shiftInMilliseconds);
EvictionTask prevTask = tasks.putIfAbsent(name, task);
if (prevTask == null) {
task.schedule();
}
}
public void schedule(String name, String timeoutSetName, String maxIdleSetName) {
EvictionTask task = new MapCacheEvictionTask(name, timeoutSetName, maxIdleSetName, executor);
EvictionTask prevTask = tasks.putIfAbsent(name, task);
if (prevTask == null) {
task.schedule();
}
}
}