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Spring Data module for Redis
/*
* Copyright 2011-2023 the original author or authors.
*
* 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
*
* https://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.springframework.data.redis.core;
import java.util.Collection;
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.connection.RedisListCommands.Direction;
import org.springframework.data.redis.connection.RedisListCommands.Position;
import org.springframework.util.CollectionUtils;
/**
* Default implementation of {@link ListOperations}.
*
* @author Costin Leau
* @author David Liu
* @author Thomas Darimont
* @author Christoph Strobl
* @author dengliming
*/
class DefaultListOperations extends AbstractOperations implements ListOperations {
DefaultListOperations(RedisTemplate template) {
super(template);
}
@Override
public V index(K key, long index) {
return execute(new ValueDeserializingRedisCallback(key) {
@Override
protected byte[] inRedis(byte[] rawKey, RedisConnection connection) {
return connection.lIndex(rawKey, index);
}
});
}
@Override
public Long indexOf(K key, V value) {
byte[] rawKey = rawKey(key);
byte[] rawValue = rawValue(value);
return execute(connection -> connection.lPos(rawKey, rawValue));
}
@Override
public Long lastIndexOf(K key, V value) {
byte[] rawKey = rawKey(key);
byte[] rawValue = rawValue(value);
return execute(connection -> {
List indexes = connection.lPos(rawKey, rawValue, -1, null);
return CollectionUtils.firstElement(indexes);
});
}
@Override
public V leftPop(K key) {
return execute(new ValueDeserializingRedisCallback(key) {
@Override
protected byte[] inRedis(byte[] rawKey, RedisConnection connection) {
return connection.lPop(rawKey);
}
});
}
@Override
public List leftPop(K key, long count) {
byte[] rawKey = rawKey(key);
return execute(connection -> deserializeValues(connection.lPop(rawKey, count)));
}
@Override
public V leftPop(K key, long timeout, TimeUnit unit) {
int tm = (int) TimeoutUtils.toSeconds(timeout, unit);
return execute(new ValueDeserializingRedisCallback(key) {
@Override
protected byte[] inRedis(byte[] rawKey, RedisConnection connection) {
List lPop = connection.bLPop(tm, rawKey);
return (CollectionUtils.isEmpty(lPop) ? null : lPop.get(1));
}
});
}
@Override
public Long leftPush(K key, V value) {
byte[] rawKey = rawKey(key);
byte[] rawValue = rawValue(value);
return execute(connection -> connection.lPush(rawKey, rawValue));
}
@Override
public Long leftPushAll(K key, V... values) {
byte[] rawKey = rawKey(key);
byte[][] rawValues = rawValues(values);
return execute(connection -> connection.lPush(rawKey, rawValues));
}
@Override
public Long leftPushAll(K key, Collection values) {
byte[] rawKey = rawKey(key);
byte[][] rawValues = rawValues(values);
return execute(connection -> connection.lPush(rawKey, rawValues));
}
@Override
public Long leftPushIfPresent(K key, V value) {
byte[] rawKey = rawKey(key);
byte[] rawValue = rawValue(value);
return execute(connection -> connection.lPushX(rawKey, rawValue));
}
@Override
public Long leftPush(K key, V pivot, V value) {
byte[] rawKey = rawKey(key);
byte[] rawPivot = rawValue(pivot);
byte[] rawValue = rawValue(value);
return execute(connection -> connection.lInsert(rawKey, Position.BEFORE, rawPivot, rawValue));
}
@Override
public Long size(K key) {
byte[] rawKey = rawKey(key);
return execute(connection -> connection.lLen(rawKey));
}
@Override
public List range(K key, long start, long end) {
byte[] rawKey = rawKey(key);
return execute(connection -> deserializeValues(connection.lRange(rawKey, start, end)));
}
@Override
public Long remove(K key, long count, Object value) {
byte[] rawKey = rawKey(key);
byte[] rawValue = rawValue(value);
return execute(connection -> connection.lRem(rawKey, count, rawValue));
}
@Override
public V rightPop(K key) {
return execute(new ValueDeserializingRedisCallback(key) {
@Override
protected byte[] inRedis(byte[] rawKey, RedisConnection connection) {
return connection.rPop(rawKey);
}
});
}
@Override
public List rightPop(K key, long count) {
byte[] rawKey = rawKey(key);
return execute(connection -> deserializeValues(connection.rPop(rawKey, count)));
}
@Override
public V rightPop(K key, long timeout, TimeUnit unit) {
int tm = (int) TimeoutUtils.toSeconds(timeout, unit);
return execute(new ValueDeserializingRedisCallback(key) {
@Override
protected byte[] inRedis(byte[] rawKey, RedisConnection connection) {
List bRPop = connection.bRPop(tm, rawKey);
return (CollectionUtils.isEmpty(bRPop) ? null : bRPop.get(1));
}
});
}
@Override
public Long rightPush(K key, V value) {
byte[] rawKey = rawKey(key);
byte[] rawValue = rawValue(value);
return execute(connection -> connection.rPush(rawKey, rawValue));
}
@Override
public Long rightPushAll(K key, V... values) {
byte[] rawKey = rawKey(key);
byte[][] rawValues = rawValues(values);
return execute(connection -> connection.rPush(rawKey, rawValues));
}
@Override
public Long rightPushAll(K key, Collection values) {
byte[] rawKey = rawKey(key);
byte[][] rawValues = rawValues(values);
return execute(connection -> connection.rPush(rawKey, rawValues));
}
@Override
public Long rightPushIfPresent(K key, V value) {
byte[] rawKey = rawKey(key);
byte[] rawValue = rawValue(value);
return execute(connection -> connection.rPushX(rawKey, rawValue));
}
@Override
public Long rightPush(K key, V pivot, V value) {
byte[] rawKey = rawKey(key);
byte[] rawPivot = rawValue(pivot);
byte[] rawValue = rawValue(value);
return execute(connection -> connection.lInsert(rawKey, Position.AFTER, rawPivot, rawValue));
}
@Override
public V rightPopAndLeftPush(K sourceKey, K destinationKey) {
byte[] rawDestKey = rawKey(destinationKey);
return execute(new ValueDeserializingRedisCallback(sourceKey) {
@Override
protected byte[] inRedis(byte[] rawSourceKey, RedisConnection connection) {
return connection.rPopLPush(rawSourceKey, rawDestKey);
}
});
}
@Override
public V rightPopAndLeftPush(K sourceKey, K destinationKey, long timeout, TimeUnit unit) {
int tm = (int) TimeoutUtils.toSeconds(timeout, unit);
byte[] rawDestKey = rawKey(destinationKey);
return execute(new ValueDeserializingRedisCallback(sourceKey) {
@Override
protected byte[] inRedis(byte[] rawSourceKey, RedisConnection connection) {
return connection.bRPopLPush(tm, rawSourceKey, rawDestKey);
}
});
}
@Override
public V move(K sourceKey, Direction from, K destinationKey, Direction to) {
byte[] rawDestKey = rawKey(destinationKey);
return execute(new ValueDeserializingRedisCallback(sourceKey) {
@Override
protected byte[] inRedis(byte[] rawSourceKey, RedisConnection connection) {
return connection.lMove(rawSourceKey, rawDestKey, from, to);
}
});
}
@Override
public V move(K sourceKey, Direction from, K destinationKey, Direction to, long timeout, TimeUnit unit) {
byte[] rawDestKey = rawKey(destinationKey);
return execute(new ValueDeserializingRedisCallback(sourceKey) {
@Override
protected byte[] inRedis(byte[] rawSourceKey, RedisConnection connection) {
return connection.bLMove(rawSourceKey, rawDestKey, from, to, TimeoutUtils.toDoubleSeconds(timeout, unit));
}
});
}
@Override
public void set(K key, long index, V value) {
byte[] rawValue = rawValue(value);
execute(new ValueDeserializingRedisCallback(key) {
@Override
protected byte[] inRedis(byte[] rawKey, RedisConnection connection) {
connection.lSet(rawKey, index, rawValue);
return null;
}
});
}
@Override
public void trim(K key, long start, long end) {
execute(new ValueDeserializingRedisCallback(key) {
@Override
protected byte[] inRedis(byte[] rawKey, RedisConnection connection) {
connection.lTrim(rawKey, start, end);
return null;
}
});
}
}