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org.springframework.data.redis.connection.lettuce.LettuceClusterServerCommands 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.lettuce;
import io.lettuce.core.api.sync.RedisServerCommands;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import org.springframework.dao.InvalidDataAccessApiUsageException;
import org.springframework.data.redis.connection.ClusterCommandExecutor.MultiNodeResult;
import org.springframework.data.redis.connection.ClusterCommandExecutor.NodeResult;
import org.springframework.data.redis.connection.RedisClusterNode;
import org.springframework.data.redis.connection.RedisClusterServerCommands;
import org.springframework.data.redis.connection.convert.Converters;
import org.springframework.data.redis.connection.lettuce.LettuceClusterConnection.LettuceClusterCommandCallback;
import org.springframework.data.redis.core.types.RedisClientInfo;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;
/**
* @author Mark Paluch
* @since 2.0
*/
class LettuceClusterServerCommands extends LettuceServerCommands implements RedisClusterServerCommands {
private final LettuceClusterConnection connection;
LettuceClusterServerCommands(LettuceClusterConnection connection) {
super(connection);
this.connection = connection;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#bgReWriteAof(org.springframework.data.redis.connection.RedisClusterNode)
*/
@Override
public void bgReWriteAof(RedisClusterNode node) {
executeCommandOnSingleNode(RedisServerCommands::bgrewriteaof, node);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#bgSave(org.springframework.data.redis.connection.RedisClusterNode)
*/
@Override
public void bgSave(RedisClusterNode node) {
executeCommandOnSingleNode(RedisServerCommands::bgsave, node);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#lastSave(org.springframework.data.redis.connection.RedisClusterNode)
*/
@Override
public Long lastSave(RedisClusterNode node) {
return executeCommandOnSingleNode(client -> client.lastsave().getTime(), node).getValue();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#save(org.springframework.data.redis.connection.RedisClusterNode)
*/
@Override
public void save(RedisClusterNode node) {
executeCommandOnSingleNode(RedisServerCommands::save, node);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.lettuce.LettuceServerCommands#dbSize()
*/
@Override
public Long dbSize() {
Collection dbSizes = executeCommandOnAllNodes(RedisServerCommands::dbsize).resultsAsList();
if (CollectionUtils.isEmpty(dbSizes)) {
return 0L;
}
Long size = 0L;
for (Long value : dbSizes) {
size += value;
}
return size;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#dbSize(org.springframework.data.redis.connection.RedisClusterNode)
*/
@Override
public Long dbSize(RedisClusterNode node) {
return executeCommandOnSingleNode(RedisServerCommands::dbsize, node).getValue();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.lettuce.LettuceServerCommands#flushDb()
*/
@Override
public void flushDb() {
executeCommandOnAllNodes(RedisServerCommands::flushdb);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#flushDb(org.springframework.data.redis.connection.RedisClusterNode)
*/
@Override
public void flushDb(RedisClusterNode node) {
executeCommandOnSingleNode(RedisServerCommands::flushdb, node);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.lettuce.LettuceServerCommands#flushAll()
*/
@Override
public void flushAll() {
executeCommandOnAllNodes(RedisServerCommands::flushall);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#flushAll(org.springframework.data.redis.connection.RedisClusterNode)
*/
@Override
public void flushAll(RedisClusterNode node) {
executeCommandOnSingleNode(RedisServerCommands::flushall, node);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#info(org.springframework.data.redis.connection.RedisClusterNode)
*/
@Override
public Properties info(RedisClusterNode node) {
return LettuceConverters.toProperties(executeCommandOnSingleNode(RedisServerCommands::info, node).getValue());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.lettuce.LettuceServerCommands#info()
*/
@Override
public Properties info() {
Properties infos = new Properties();
List> nodeResults = executeCommandOnAllNodes(
client -> LettuceConverters.toProperties(client.info())).getResults();
for (NodeResult nodePorperties : nodeResults) {
for (Entry entry : nodePorperties.getValue().entrySet()) {
infos.put(nodePorperties.getNode().asString() + "." + entry.getKey(), entry.getValue());
}
}
return infos;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.lettuce.LettuceServerCommands#info(java.lang.String)
*/
@Override
public Properties info(String section) {
Assert.hasText(section, "Section must not be null or empty!");
Properties infos = new Properties();
List> nodeResults = executeCommandOnAllNodes(
client -> LettuceConverters.toProperties(client.info(section))).getResults();
for (NodeResult nodePorperties : nodeResults) {
for (Entry entry : nodePorperties.getValue().entrySet()) {
infos.put(nodePorperties.getNode().asString() + "." + entry.getKey(), entry.getValue());
}
}
return infos;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#info(org.springframework.data.redis.connection.RedisClusterNode, java.lang.String)
*/
@Override
public Properties info(RedisClusterNode node, String section) {
Assert.hasText(section, "Section must not be null or empty!");
return LettuceConverters.toProperties(executeCommandOnSingleNode(client -> client.info(section), node).getValue());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#shutdown(org.springframework.data.redis.connection.RedisClusterNode)
*/
@Override
public void shutdown(RedisClusterNode node) {
executeCommandOnSingleNode((LettuceClusterCommandCallback) client -> {
client.shutdown(true);
return null;
}, node);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.lettuce.LettuceServerCommands#getConfig(java.lang.String)
*/
@Override
public Properties getConfig(String pattern) {
Assert.hasText(pattern, "Pattern must not be null or empty!");
List>> mapResult = executeCommandOnAllNodes(client -> client.configGet(pattern))
.getResults();
Properties properties = new Properties();
for (NodeResult> entry : mapResult) {
String prefix = entry.getNode().asString();
entry.getValue().forEach((key, value) -> properties.setProperty(prefix + "." + key, value));
}
return properties;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#getConfig(org.springframework.data.redis.connection.RedisClusterNode, java.lang.String)
*/
@Override
public Properties getConfig(RedisClusterNode node, String pattern) {
Assert.hasText(pattern, "Pattern must not be null or empty!");
return executeCommandOnSingleNode(client -> Converters.toProperties(client.configGet(pattern)), node).getValue();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.lettuce.LettuceServerCommands#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!");
executeCommandOnAllNodes(client -> client.configSet(param, value));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#setConfig(org.springframework.data.redis.connection.RedisClusterNode, java.lang.String, java.lang.String)
*/
@Override
public void setConfig(RedisClusterNode node, String param, String value) {
Assert.hasText(param, "Parameter must not be null or empty!");
Assert.hasText(value, "Value must not be null or empty!");
executeCommandOnSingleNode(client -> client.configSet(param, value), node);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.lettuce.LettuceServerCommands#resetConfigStats()
*/
@Override
public void resetConfigStats() {
executeCommandOnAllNodes(RedisServerCommands::configResetstat);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#resetConfigStats(org.springframework.data.redis.connection.RedisClusterNode)
*/
@Override
public void resetConfigStats(RedisClusterNode node) {
executeCommandOnSingleNode(RedisServerCommands::configResetstat, node);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.lettuce.LettuceServerCommands#time()
*/
@Override
public Long time() {
return convertListOfStringToTime(connection.getClusterCommandExecutor()
.executeCommandOnArbitraryNode((LettuceClusterCommandCallback>) RedisServerCommands::time)
.getValue());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#time(org.springframework.data.redis.connection.RedisClusterNode)
*/
@Override
public Long time(RedisClusterNode node) {
return convertListOfStringToTime(executeCommandOnSingleNode(RedisServerCommands::time, node).getValue());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.lettuce.LettuceServerCommands#getClientList()
*/
@Override
public List getClientList() {
List map = executeCommandOnAllNodes(RedisServerCommands::clientList).resultsAsList();
ArrayList result = new ArrayList<>();
for (String infos : map) {
result.addAll(LettuceConverters.toListOfRedisClientInformation(infos));
}
return result;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisClusterServerCommands#getClientList(org.springframework.data.redis.connection.RedisClusterNode)
*/
@Override
public List getClientList(RedisClusterNode node) {
return LettuceConverters
.toListOfRedisClientInformation(executeCommandOnSingleNode(RedisServerCommands::clientList, node).getValue());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.lettuce.LettuceServerCommands#slaveOf(java.lang.String, int)
*/
@Override
public void slaveOf(String host, int port) {
throw new InvalidDataAccessApiUsageException(
"SlaveOf is not supported in cluster environment. Please use CLUSTER REPLICATE.");
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.lettuce.LettuceServerCommands#slaveOfNoOne()
*/
@Override
public void slaveOfNoOne() {
throw new InvalidDataAccessApiUsageException(
"SlaveOf is not supported in cluster environment. Please use CLUSTER REPLICATE.");
}
private NodeResult executeCommandOnSingleNode(LettuceClusterCommandCallback command,
RedisClusterNode node) {
return connection.getClusterCommandExecutor().executeCommandOnSingleNode(command, node);
}
private MultiNodeResult executeCommandOnAllNodes(final LettuceClusterCommandCallback cmd) {
return connection.getClusterCommandExecutor().executeCommandOnAllNodes(cmd);
}
private static Long convertListOfStringToTime(List serverTimeInformation) {
Assert.notEmpty(serverTimeInformation, "Received invalid result from server. Expected 2 items in collection.");
Assert.isTrue(serverTimeInformation.size() == 2,
"Received invalid number of arguments from redis server. Expected 2 received " + serverTimeInformation.size());
return Converters.toTimeMillis(LettuceConverters.toString(serverTimeInformation.get(0)),
LettuceConverters.toString(serverTimeInformation.get(1)));
}
}
