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Redis based In-Memory Data Grid for Java
/**
* Copyright 2018 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;
import java.util.Arrays;
import java.util.concurrent.TimeUnit;
import org.redisson.api.RFuture;
import org.redisson.api.RObject;
import org.redisson.client.codec.LongCodec;
import org.redisson.client.protocol.RedisCommands;
import org.redisson.command.CommandAsyncExecutor;
/**
*
* @author Nikita Koksharov
*
* @param key type
*/
public class RedissonMultimapCache {
private final CommandAsyncExecutor commandExecutor;
private final RObject object;
private final String timeoutSetName;
private final String prefix;
public RedissonMultimapCache(CommandAsyncExecutor commandExecutor, RObject object, String timeoutSetName, String prefix) {
this.commandExecutor = commandExecutor;
this.object = object;
this.timeoutSetName = timeoutSetName;
this.prefix = prefix;
}
public RFuture expireKeyAsync(K key, long timeToLive, TimeUnit timeUnit) {
long ttlTimeout = System.currentTimeMillis() + timeUnit.toMillis(timeToLive);
return commandExecutor.evalWriteAsync(object.getName(), object.getCodec(), RedisCommands.EVAL_BOOLEAN,
"if redis.call('hexists', KEYS[1], ARGV[2]) == 1 then "
+ "if tonumber(ARGV[1]) > 0 then "
+ "redis.call('zadd', KEYS[2], ARGV[1], ARGV[2]); " +
"else " +
"redis.call('zrem', KEYS[2], ARGV[2]); "
+ "end; "
+ "return 1; "
+ "else "
+ "return 0; "
+ "end",
Arrays.