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Spring Data module for Redis
/*
* Copyright 2017-2024 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.connection.jedis;
import redis.clients.jedis.args.ListDirection;
import redis.clients.jedis.params.LPosParams;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.springframework.dao.DataAccessException;
import org.springframework.data.redis.connection.ClusterSlotHashUtil;
import org.springframework.data.redis.connection.RedisListCommands;
import org.springframework.data.redis.connection.jedis.JedisClusterConnection.JedisMultiKeyClusterCommandCallback;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;
/**
* @author Christoph Strobl
* @author Mark Paluch
* @author Jot Zhao
* @author dengliming
* @since 2.0
*/
class JedisClusterListCommands implements RedisListCommands {
private final JedisClusterConnection connection;
JedisClusterListCommands(JedisClusterConnection connection) {
this.connection = connection;
}
@Override
public Long rPush(byte[] key, byte[]... values) {
Assert.notNull(key, "Key must not be null");
try {
return connection.getCluster().rpush(key, values);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public List lPos(byte[] key, byte[] element, @Nullable Integer rank, @Nullable Integer count) {
Assert.notNull(key, "Key must not be null");
Assert.notNull(element, "Element must not be null");
LPosParams params = new LPosParams();
if (rank != null) {
params.rank(rank);
}
try {
if (count != null) {
return connection.getCluster().lpos(key, element, params, count);
}
Long value = connection.getCluster().lpos(key, element, params);
return value != null ? Collections.singletonList(value) : Collections.emptyList();
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public Long lPush(byte[] key, byte[]... values) {
Assert.notNull(key, "Key must not be null");
Assert.notNull(values, "Values must not be null");
Assert.noNullElements(values, "Values must not contain null elements");
try {
return connection.getCluster().lpush(key, values);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public Long rPushX(byte[] key, byte[] value) {
Assert.notNull(key, "Key must not be null");
Assert.notNull(value, "Value must not be null");
try {
return connection.getCluster().rpushx(key, value);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public Long lPushX(byte[] key, byte[] value) {
Assert.notNull(key, "Key must not be null");
Assert.notNull(value, "Value must not be null");
try {
return connection.getCluster().lpushx(key, value);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public Long lLen(byte[] key) {
Assert.notNull(key, "Key must not be null");
try {
return connection.getCluster().llen(key);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public List lRange(byte[] key, long start, long end) {
Assert.notNull(key, "Key must not be null");
try {
return connection.getCluster().lrange(key, start, end);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public void lTrim(byte[] key, long start, long end) {
Assert.notNull(key, "Key must not be null");
try {
connection.getCluster().ltrim(key, start, end);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public byte[] lIndex(byte[] key, long index) {
Assert.notNull(key, "Key must not be null");
try {
return connection.getCluster().lindex(key, index);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public Long lInsert(byte[] key, Position where, byte[] pivot, byte[] value) {
Assert.notNull(key, "Key must not be null");
try {
return connection.getCluster().linsert(key, JedisConverters.toListPosition(where), pivot, value);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public byte[] lMove(byte[] sourceKey, byte[] destinationKey, Direction from, Direction to) {
Assert.notNull(sourceKey, "Source key must not be null");
Assert.notNull(destinationKey, "Destination key must not be null");
Assert.notNull(from, "From direction must not be null");
Assert.notNull(to, "To direction must not be null");
try {
return connection.getCluster().lmove(sourceKey, destinationKey, ListDirection.valueOf(from.name()),
ListDirection.valueOf(to.name()));
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public byte[] bLMove(byte[] sourceKey, byte[] destinationKey, Direction from, Direction to, double timeout) {
Assert.notNull(sourceKey, "Source key must not be null");
Assert.notNull(destinationKey, "Destination key must not be null");
Assert.notNull(from, "From direction must not be null");
Assert.notNull(to, "To direction must not be null");
try {
return connection.getCluster().blmove(sourceKey, destinationKey, ListDirection.valueOf(from.name()),
ListDirection.valueOf(to.name()), timeout);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public void lSet(byte[] key, long index, byte[] value) {
Assert.notNull(key, "Key must not be null");
Assert.notNull(value, "Value must not be null");
try {
connection.getCluster().lset(key, index, value);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public Long lRem(byte[] key, long count, byte[] value) {
Assert.notNull(key, "Key must not be null");
Assert.notNull(value, "Value must not be null");
try {
return connection.getCluster().lrem(key, count, value);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public byte[] lPop(byte[] key) {
Assert.notNull(key, "Key must not be null");
try {
return connection.getCluster().lpop(key);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public List lPop(byte[] key, long count) {
Assert.notNull(key, "Key must not be null");
try {
return connection.getCluster().lpop(key, (int) count);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public byte[] rPop(byte[] key) {
Assert.notNull(key, "Key must not be null");
try {
return connection.getCluster().rpop(key);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public List rPop(byte[] key, long count) {
Assert.notNull(key, "Key must not be null");
try {
return connection.getCluster().rpop(key, (int) count);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
@Override
public List bLPop(int timeout, byte[]... keys) {
Assert.notNull(keys, "Key must not be null");
Assert.noNullElements(keys, "Keys must not contain null elements");
if (ClusterSlotHashUtil.isSameSlotForAllKeys(keys)) {
try {
return connection.getCluster().blpop(timeout, keys);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
return connection.getClusterCommandExecutor()
.executeMultiKeyCommand(
(JedisMultiKeyClusterCommandCallback>) (client, key) -> client.blpop(timeout, key),
Arrays.asList(keys))
.getFirstNonNullNotEmptyOrDefault(Collections. emptyList());
}
@Override
public List bRPop(int timeout, byte[]... keys) {
Assert.notNull(keys, "Key must not be null");
Assert.noNullElements(keys, "Keys must not contain null elements");
if (ClusterSlotHashUtil.isSameSlotForAllKeys(keys)) {
try {
return connection.getCluster().brpop(timeout, keys);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
return connection.getClusterCommandExecutor()
.executeMultiKeyCommand(
(JedisMultiKeyClusterCommandCallback>) (client, key) -> client.brpop(timeout, key),
Arrays.asList(keys))
.getFirstNonNullNotEmptyOrDefault(Collections. emptyList());
}
@Override
public byte[] rPopLPush(byte[] srcKey, byte[] dstKey) {
Assert.notNull(srcKey, "Source key must not be null");
Assert.notNull(dstKey, "Destination key must not be null");
if (ClusterSlotHashUtil.isSameSlotForAllKeys(srcKey, dstKey)) {
try {
return connection.getCluster().rpoplpush(srcKey, dstKey);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
byte[] val = rPop(srcKey);
lPush(dstKey, val);
return val;
}
@Override
public byte[] bRPopLPush(int timeout, byte[] srcKey, byte[] dstKey) {
Assert.notNull(srcKey, "Source key must not be null");
Assert.notNull(dstKey, "Destination key must not be null");
if (ClusterSlotHashUtil.isSameSlotForAllKeys(srcKey, dstKey)) {
try {
return connection.getCluster().brpoplpush(srcKey, dstKey, timeout);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
List val = bRPop(timeout, srcKey);
if (!CollectionUtils.isEmpty(val)) {
lPush(dstKey, val.get(1));
return val.get(1);
}
return null;
}
private DataAccessException convertJedisAccessException(Exception ex) {
return connection.convertJedisAccessException(ex);
}
}