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org.springframework.data.redis.connection.lettuce.LettuceServerCommands Maven / Gradle / Ivy
/*
* Copyright 2017-2022 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.lettuce;
import io.lettuce.core.LettuceFutures;
import io.lettuce.core.RedisFuture;
import io.lettuce.core.api.async.RedisKeyAsyncCommands;
import io.lettuce.core.api.async.RedisServerAsyncCommands;
import io.lettuce.core.cluster.api.sync.RedisClusterCommands;
import java.util.List;
import java.util.Properties;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.TimeUnit;
import org.springframework.data.redis.connection.RedisNode;
import org.springframework.data.redis.connection.RedisServerCommands;
import org.springframework.data.redis.core.types.RedisClientInfo;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* @author Mark Paluch
* @since 2.0
*/
class LettuceServerCommands implements RedisServerCommands {
private final LettuceConnection connection;
LettuceServerCommands(LettuceConnection connection) {
this.connection = connection;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#bgReWriteAof()
*/
@Override
public void bgReWriteAof() {
connection.invokeStatus().just(RedisServerAsyncCommands::bgrewriteaof);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#bgSave()
*/
@Override
public void bgSave() {
connection.invokeStatus().just(RedisServerAsyncCommands::bgsave);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#lastSave()
*/
@Override
public Long lastSave() {
return connection.invoke().from(RedisServerAsyncCommands::lastsave).get(LettuceConverters::toLong);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#save()
*/
@Override
public void save() {
connection.invokeStatus().just(RedisServerAsyncCommands::save);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#dbSize()
*/
@Override
public Long dbSize() {
return connection.invoke().just(RedisServerAsyncCommands::dbsize);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#flushDb()
*/
@Override
public void flushDb() {
connection.invokeStatus().just(RedisServerAsyncCommands::flushdb);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#flushAll()
*/
@Override
public void flushAll() {
connection.invokeStatus().just(RedisServerAsyncCommands::flushall);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#info()
*/
@Override
public Properties info() {
return connection.invoke().from(RedisServerAsyncCommands::info).get(LettuceConverters.stringToProps());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#info(java.lang.String)
*/
@Override
public Properties info(String section) {
Assert.hasText(section, "Section must not be null or empty!");
return connection.invoke().from(RedisServerAsyncCommands::info, section).get(LettuceConverters.stringToProps());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#shutdown()
*/
@Override
public void shutdown() {
connection.invokeStatus().just(it -> {
it.shutdown(true);
return new CompletedRedisFuture<>(null);
});
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#shutdown(org.springframework.data.redis.connection.RedisServerCommands.ShutdownOption)
*/
@Override
public void shutdown(ShutdownOption option) {
if (option == null) {
shutdown();
return;
}
boolean save = ShutdownOption.SAVE.equals(option);
connection.invokeStatus().just(it -> {
it.shutdown(save);
return new CompletedRedisFuture<>(null);
});
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#getConfig(java.lang.String)
*/
@Override
public Properties getConfig(String pattern) {
Assert.hasText(pattern, "Pattern must not be null or empty!");
return connection.invoke().from(RedisServerAsyncCommands::configGet, pattern)
.get(LettuceConverters.mapToPropertiesConverter());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#setConfig(java.lang.String, java.lang.String)
*/
@Override
public void setConfig(String param, String value) {
Assert.hasText(param, "Parameter must not be null or empty!");
Assert.hasText(value, "Value must not be null or empty!");
connection.invokeStatus().just(RedisServerAsyncCommands::configSet, param, value);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#resetConfigStats()
*/
@Override
public void resetConfigStats() {
connection.invokeStatus().just(RedisServerAsyncCommands::configResetstat);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#resetConfigStats()
*/
@Override
public void rewriteConfig() {
connection.invokeStatus().just(RedisServerAsyncCommands::configRewrite);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#time(TimeUnit)
*/
@Override
public Long time(TimeUnit timeUnit) {
Assert.notNull(timeUnit, "TimeUnit must not be null.");
return connection.invoke().from(RedisServerAsyncCommands::time).get(LettuceConverters.toTimeConverter(timeUnit));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#killClient(java.lang.String, int)
*/
@Override
public void killClient(String host, int port) {
Assert.hasText(host, "Host for 'CLIENT KILL' must not be 'null' or 'empty'.");
String client = String.format("%s:%s", host, port);
connection.invoke().just(RedisServerAsyncCommands::clientKill, client);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#setClientName(byte[])
*/
@Override
public void setClientName(byte[] name) {
Assert.notNull(name, "Name must not be null!");
connection.invoke().just(RedisServerAsyncCommands::clientSetname, name);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#getClientName()
*/
@Override
public String getClientName() {
return connection.invoke().from(RedisServerAsyncCommands::clientGetname).get(LettuceConverters::toString);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#getClientList()
*/
@Override
public List getClientList() {
if (connection.isPipelined()) {
throw new UnsupportedOperationException("Cannot be called in pipeline mode.");
}
return connection.invoke().from(RedisServerAsyncCommands::clientList)
.get(LettuceConverters.stringToRedisClientListConverter());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#slaveOf(java.lang.String, int)
*/
@Override
public void slaveOf(String host, int port) {
Assert.hasText(host, "Host must not be null for 'SLAVEOF' command.");
connection.invoke().just(RedisServerAsyncCommands::slaveof, host, port);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#slaveOfNoOne()
*/
@Override
public void slaveOfNoOne() {
connection.invoke().just(RedisServerAsyncCommands::slaveofNoOne);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#migrate(byte[], org.springframework.data.redis.connection.RedisNode, int, org.springframework.data.redis.connection.RedisServerCommands.MigrateOption)
*/
@Override
public void migrate(byte[] key, RedisNode target, int dbIndex, @Nullable MigrateOption option) {
migrate(key, target, dbIndex, option, Long.MAX_VALUE);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisServerCommands#migrate(byte[], org.springframework.data.redis.connection.RedisNode, int, org.springframework.data.redis.connection.RedisServerCommands.MigrateOption, long)
*/
@Override
public void migrate(byte[] key, RedisNode target, int dbIndex, @Nullable MigrateOption option, long timeout) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(target, "Target node must not be null!");
connection.invoke().just(RedisKeyAsyncCommands::migrate, target.getHost(), target.getPort(), key, dbIndex, timeout);
}
public RedisClusterCommands getConnection() {
return connection.getConnection();
}
static class CompletedRedisFuture extends CompletableFuture implements RedisFuture {
public CompletedRedisFuture(T value) {
complete(value);
}
@Override
public String getError() {
return "";
}
@Override
public boolean await(long timeout, TimeUnit unit) throws InterruptedException {
return LettuceFutures.awaitAll(timeout, unit, this);
}
}
}
