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org.springframework.data.redis.connection.jedis.JedisClusterKeyCommands Maven / Gradle / Ivy
/*
* Copyright 2017-2018 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
*
* 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.springframework.data.redis.connection.jedis;
import lombok.NonNull;
import lombok.RequiredArgsConstructor;
import redis.clients.jedis.BinaryJedis;
import redis.clients.jedis.ScanParams;
import java.time.Duration;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.ThreadLocalRandom;
import java.util.concurrent.TimeUnit;
import org.springframework.dao.DataAccessException;
import org.springframework.dao.InvalidDataAccessApiUsageException;
import org.springframework.data.redis.connection.ClusterSlotHashUtil;
import org.springframework.data.redis.connection.DataType;
import org.springframework.data.redis.connection.RedisClusterNode;
import org.springframework.data.redis.connection.RedisKeyCommands;
import org.springframework.data.redis.connection.RedisNode;
import org.springframework.data.redis.connection.SortParameters;
import org.springframework.data.redis.connection.ValueEncoding;
import org.springframework.data.redis.connection.convert.Converters;
import org.springframework.data.redis.connection.jedis.JedisClusterConnection.JedisClusterCommandCallback;
import org.springframework.data.redis.connection.jedis.JedisClusterConnection.JedisMultiKeyClusterCommandCallback;
import org.springframework.data.redis.core.Cursor;
import org.springframework.data.redis.core.ScanCursor;
import org.springframework.data.redis.core.ScanIteration;
import org.springframework.data.redis.core.ScanOptions;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;
import org.springframework.util.ObjectUtils;
/**
* @author Christoph Strobl
* @author Mark Paluch
* @since 2.0
*/
@RequiredArgsConstructor
class JedisClusterKeyCommands implements RedisKeyCommands {
private final @NonNull JedisClusterConnection connection;
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#del(byte[][])
*/
@Override
public Long del(byte[]... keys) {
Assert.notNull(keys, "Keys must not be null!");
Assert.noNullElements(keys, "Keys must not contain null elements!");
if (ClusterSlotHashUtil.isSameSlotForAllKeys(keys)) {
try {
return connection.getCluster().del(keys);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
return (long) connection.getClusterCommandExecutor()
.executeMultiKeyCommand((JedisMultiKeyClusterCommandCallback) (client, key) -> client.del(key),
Arrays.asList(keys))
.resultsAsList().size();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#unlink(byte[][])
*/
@Nullable
@Override
public Long unlink(byte[]... keys) {
Assert.notNull(keys, "Keys must not be null!");
return connection. execute("UNLINK", Arrays.asList(keys), Collections.emptyList()).stream()
.mapToLong(val -> val).sum();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#type(byte[])
*/
@Override
public DataType type(byte[] key) {
Assert.notNull(key, "Key must not be null!");
try {
return JedisConverters.toDataType(connection.getCluster().type(key));
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#touch(byte[][])
*/
@Nullable
@Override
public Long touch(byte[]... keys) {
Assert.notNull(keys, "Keys must not be null!");
return connection. execute("TOUCH", Arrays.asList(keys), Collections.emptyList()).stream()
.mapToLong(val -> val).sum();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#keys(byte[])
*/
@Override
public Set keys(byte[] pattern) {
Assert.notNull(pattern, "Pattern must not be null!");
Collection> keysPerNode = connection.getClusterCommandExecutor()
.executeCommandOnAllNodes((JedisClusterCommandCallback>) client -> client.keys(pattern))
.resultsAsList();
Set keys = new HashSet<>();
for (Set keySet : keysPerNode) {
keys.addAll(keySet);
}
return keys;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterConnection#keys(org.springframework.data.redis.connection.RedisClusterNode, byte[])
*/
public Set keys(RedisClusterNode node, byte[] pattern) {
Assert.notNull(node, "RedisClusterNode must not be null!");
Assert.notNull(pattern, "Pattern must not be null!");
return connection.getClusterCommandExecutor()
.executeCommandOnSingleNode((JedisClusterCommandCallback>) client -> client.keys(pattern), node)
.getValue();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#scan(org.springframework.data.redis.core.ScanOptions)
*/
@Override
public Cursor scan(ScanOptions options) {
throw new InvalidDataAccessApiUsageException("Scan is not supported across multiple nodes within a cluster");
}
/**
* Use a {@link Cursor} to iterate over keys stored at the given {@link RedisClusterNode}.
*
* @param node must not be {@literal null}.
* @param options must not be {@literal null}.
* @return never {@literal null}.
* @since 2.1
*/
Cursor scan(RedisClusterNode node, ScanOptions options) {
Assert.notNull(node, "RedisClusterNode must not be null!");
Assert.notNull(options, "Options must not be null!");
return connection.getClusterCommandExecutor()
.executeCommandOnSingleNode((JedisClusterCommandCallback>) client -> {
return new ScanCursor(0, options) {
@Override
protected ScanIteration doScan(long cursorId, ScanOptions options) {
ScanParams params = JedisConverters.toScanParams(options);
redis.clients.jedis.ScanResult result = client.scan(Long.toString(cursorId), params);
return new ScanIteration<>(Long.valueOf(result.getStringCursor()),
JedisConverters.stringListToByteList().convert(result.getResult()));
}
}.open();
}, node).getValue();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#randomKey()
*/
@Override
public byte[] randomKey() {
List nodes = new ArrayList<>(
connection.getTopologyProvider().getTopology().getActiveMasterNodes());
Set inspectedNodes = new HashSet<>(nodes.size());
do {
RedisClusterNode node = nodes.get(ThreadLocalRandom.current().nextInt(nodes.size()));
while (inspectedNodes.contains(node)) {
node = nodes.get(ThreadLocalRandom.current().nextInt(nodes.size()));
}
inspectedNodes.add(node);
byte[] key = randomKey(node);
if (key != null && key.length > 0) {
return key;
}
} while (nodes.size() != inspectedNodes.size());
return null;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterConnection#randomKey(org.springframework.data.redis.connection.RedisClusterNode)
*/
public byte[] randomKey(RedisClusterNode node) {
Assert.notNull(node, "RedisClusterNode must not be null!");
return connection.getClusterCommandExecutor()
.executeCommandOnSingleNode((JedisClusterCommandCallback) client -> client.randomBinaryKey(), node)
.getValue();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#rename(byte[], byte[])
*/
@Override
public void rename(byte[] sourceKey, byte[] targetKey) {
Assert.notNull(sourceKey, "Source key must not be null!");
Assert.notNull(targetKey, "Target key must not be null!");
if (ClusterSlotHashUtil.isSameSlotForAllKeys(sourceKey, targetKey)) {
try {
connection.getCluster().rename(sourceKey, targetKey);
return;
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
byte[] value = dump(sourceKey);
if (value != null && value.length > 0) {
restore(targetKey, 0, value);
del(sourceKey);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#renameNX(byte[], byte[])
*/
@Override
public Boolean renameNX(byte[] sourceKey, byte[] targetKey) {
Assert.notNull(sourceKey, "Source key must not be null!");
Assert.notNull(targetKey, "Target key must not be null!");
if (ClusterSlotHashUtil.isSameSlotForAllKeys(sourceKey, targetKey)) {
try {
return JedisConverters.toBoolean(connection.getCluster().renamenx(sourceKey, targetKey));
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
byte[] value = dump(sourceKey);
if (value != null && value.length > 0 && !exists(targetKey)) {
restore(targetKey, 0, value);
del(sourceKey);
return Boolean.TRUE;
}
return Boolean.FALSE;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#expire(byte[], long)
*/
@Override
public Boolean expire(byte[] key, long seconds) {
Assert.notNull(key, "Key must not be null!");
if (seconds > Integer.MAX_VALUE) {
throw new UnsupportedOperationException("Jedis does not support seconds exceeding Integer.MAX_VALUE.");
}
try {
return JedisConverters.toBoolean(connection.getCluster().expire(key, Long.valueOf(seconds).intValue()));
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#pExpire(byte[], long)
*/
@Override
public Boolean pExpire(byte[] key, long millis) {
Assert.notNull(key, "Key must not be null!");
try {
return JedisConverters.toBoolean(connection.getCluster().pexpire(key, millis));
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#expireAt(byte[], long)
*/
@Override
public Boolean expireAt(byte[] key, long unixTime) {
Assert.notNull(key, "Key must not be null!");
try {
return JedisConverters.toBoolean(connection.getCluster().expireAt(key, unixTime));
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#pExpireAt(byte[], long)
*/
@Override
public Boolean pExpireAt(byte[] key, long unixTimeInMillis) {
Assert.notNull(key, "Key must not be null!");
try {
return JedisConverters.toBoolean(connection.getCluster().pexpireAt(key, unixTimeInMillis));
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#persist(byte[])
*/
@Override
public Boolean persist(byte[] key) {
Assert.notNull(key, "Key must not be null!");
try {
return JedisConverters.toBoolean(connection.getCluster().persist(key));
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#move(byte[], int)
*/
@Override
public Boolean move(byte[] key, int dbIndex) {
throw new UnsupportedOperationException("Cluster mode does not allow moving keys.");
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#ttl(byte[])
*/
@Override
public Long ttl(byte[] key) {
Assert.notNull(key, "Key must not be null!");
try {
return connection.getCluster().ttl(key);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#ttl(byte[], java.util.concurrent.TimeUnit)
*/
@Override
public Long ttl(byte[] key, TimeUnit timeUnit) {
Assert.notNull(key, "Key must not be null!");
try {
return Converters.secondsToTimeUnit(connection.getCluster().ttl(key), timeUnit);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#pTtl(byte[])
*/
@Override
public Long pTtl(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.getClusterCommandExecutor()
.executeCommandOnSingleNode((JedisClusterCommandCallback) client -> client.pttl(key),
connection.getTopologyProvider().getTopology().getKeyServingMasterNode(key))
.getValue();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#pTtl(byte[], java.util.concurrent.TimeUnit)
*/
@Override
public Long pTtl(byte[] key, TimeUnit timeUnit) {
Assert.notNull(key, "Key must not be null!");
return connection.getClusterCommandExecutor()
.executeCommandOnSingleNode(
(JedisClusterCommandCallback) client -> Converters.millisecondsToTimeUnit(client.pttl(key), timeUnit),
connection.getTopologyProvider().getTopology().getKeyServingMasterNode(key))
.getValue();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#dump(byte[])
*/
@Override
public byte[] dump(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.getClusterCommandExecutor()
.executeCommandOnSingleNode((JedisClusterCommandCallback) client -> client.dump(key),
connection.getTopologyProvider().getTopology().getKeyServingMasterNode(key))
.getValue();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#restore(byte[], long, byte[], boolean)
*/
@Override
public void restore(byte[] key, long ttlInMillis, byte[] serializedValue, boolean replace) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(serializedValue, "Serialized value must not be null!");
if (ttlInMillis > Integer.MAX_VALUE) {
throw new UnsupportedOperationException("Jedis does not support ttlInMillis exceeding Integer.MAX_VALUE.");
}
connection.getClusterCommandExecutor().executeCommandOnSingleNode((JedisClusterCommandCallback) client -> {
if (!replace) {
return client.restore(key, Long.valueOf(ttlInMillis).intValue(), serializedValue);
}
return JedisConverters.toString(this.connection.execute("RESTORE", key,
Arrays.asList(JedisConverters.toBytes(ttlInMillis), serializedValue, JedisConverters.toBytes
("REPLACE"))));
}, connection.clusterGetNodeForKey(key));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#sort(byte[], org.springframework.data.redis.connection.SortParameters)
*/
@Override
public List sort(byte[] key, SortParameters params) {
Assert.notNull(key, "Key must not be null!");
try {
return connection.getCluster().sort(key, JedisConverters.toSortingParams(params));
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#sort(byte[], org.springframework.data.redis.connection.SortParameters, byte[])
*/
@Override
public Long sort(byte[] key, SortParameters params, byte[] storeKey) {
Assert.notNull(key, "Key must not be null!");
List sorted = sort(key, params);
if (!CollectionUtils.isEmpty(sorted)) {
byte[][] arr = new byte[sorted.size()][];
switch (type(key)) {
case SET:
connection.setCommands().sAdd(storeKey, sorted.toArray(arr));
return 1L;
case LIST:
connection.listCommands().lPush(storeKey, sorted.toArray(arr));
return 1L;
default:
throw new IllegalArgumentException("sort and store is only supported for SET and LIST");
}
}
return 0L;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#exists(byte[][])
*/
@Nullable
@Override
public Long exists(byte[]... keys) {
Assert.notNull(keys, "Keys must not be null!");
Assert.noNullElements(keys, "Keys must not contain null elements!");
if (ClusterSlotHashUtil.isSameSlotForAllKeys(keys)) {
try {
return connection.getCluster().exists(keys);
} catch (Exception ex) {
throw convertJedisAccessException(ex);
}
}
return connection.getClusterCommandExecutor()
.executeMultiKeyCommand((JedisMultiKeyClusterCommandCallback) BinaryJedis::exists, Arrays.asList(keys))
.resultsAsList().stream().mapToLong(val -> ObjectUtils.nullSafeEquals(val, Boolean.TRUE) ? 1 : 0).sum();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#encoding(byte[])
*/
@Nullable
@Override
public ValueEncoding encodingOf(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.getClusterCommandExecutor()
.executeCommandOnSingleNode((JedisClusterCommandCallback) client -> client.objectEncoding(key),
connection.clusterGetNodeForKey(key))
.mapValue(JedisConverters::toEncoding);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#idletime(byte[])
*/
@Nullable
@Override
public Duration idletime(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.getClusterCommandExecutor()
.executeCommandOnSingleNode((JedisClusterCommandCallback) client -> client.objectIdletime(key),
connection.clusterGetNodeForKey(key))
.mapValue(Converters::secondsToDuration);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#refcount(byte[])
*/
@Nullable
@Override
public Long refcount(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.getClusterCommandExecutor()
.executeCommandOnSingleNode((JedisClusterCommandCallback) client -> client.objectRefcount(key),
connection.clusterGetNodeForKey(key))
.getValue();
}
private DataAccessException convertJedisAccessException(Exception ex) {
return connection.convertJedisAccessException(ex);
}
}
