com.github.lontime.shaded.org.redisson.connection.ClientConnectionsEntry Maven / Gradle / Ivy
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/**
* Copyright (c) 2013-2021 Nikita Koksharov
*
* 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 com.github.lontime.shaded.org.redisson.connection;
import com.github.lontime.shaded.org.redisson.api.NodeType;
import com.github.lontime.shaded.org.redisson.client.RedisClient;
import com.github.lontime.shaded.org.redisson.client.RedisConnection;
import com.github.lontime.shaded.org.redisson.client.RedisPubSubConnection;
import com.github.lontime.shaded.org.redisson.client.protocol.RedisCommand;
import com.github.lontime.shaded.org.redisson.config.ReadMode;
import com.github.lontime.shaded.org.redisson.pubsub.AsyncSemaphore;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Deque;
import java.util.Queue;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.ConcurrentLinkedDeque;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.concurrent.atomic.AtomicLong;
/**
*
* @author Nikita Koksharov
*
*/
public class ClientConnectionsEntry {
final Logger log = LoggerFactory.getLogger(getClass());
private final Queue allSubscribeConnections = new ConcurrentLinkedQueue<>();
private final Queue freeSubscribeConnections = new ConcurrentLinkedQueue<>();
private final AsyncSemaphore freeSubscribeConnectionsCounter;
private final Queue allConnections = new ConcurrentLinkedQueue<>();
private final Deque freeConnections = new ConcurrentLinkedDeque<>();
private final AsyncSemaphore freeConnectionsCounter;
public enum FreezeReason {MANAGER, RECONNECT, SYSTEM}
private volatile FreezeReason freezeReason;
final RedisClient client;
private volatile NodeType nodeType;
private final ConnectionManager connectionManager;
private final AtomicLong firstFailTime = new AtomicLong(0);
private volatile boolean initialized = false;
public ClientConnectionsEntry(RedisClient client, int poolMinSize, int poolMaxSize, int subscribePoolMinSize, int subscribePoolMaxSize,
ConnectionManager connectionManager, NodeType nodeType) {
this.client = client;
this.freeConnectionsCounter = new AsyncSemaphore(poolMaxSize);
this.connectionManager = connectionManager;
this.nodeType = nodeType;
this.freeSubscribeConnectionsCounter = new AsyncSemaphore(subscribePoolMaxSize);
if (subscribePoolMaxSize > 0) {
connectionManager.getConnectionWatcher().add(this, subscribePoolMinSize, subscribePoolMaxSize, freeSubscribeConnections, freeSubscribeConnectionsCounter, c -> {
freeSubscribeConnections.remove(c);
return allSubscribeConnections.remove(c);
});
}
connectionManager.getConnectionWatcher().add(this, poolMinSize, poolMaxSize, freeConnections, freeConnectionsCounter, c -> {
freeConnections.remove(c);
return allConnections.remove(c);
});
}
public boolean isMasterForRead() {
return getFreezeReason() == FreezeReason.SYSTEM
&& connectionManager.getConfig().getReadMode() == ReadMode.MASTER_SLAVE
&& getNodeType() == NodeType.MASTER;
}
public boolean isInitialized() {
return this.initialized;
}
public void setInitialized(boolean isInited) {
this.initialized = isInited;
}
public void setNodeType(NodeType nodeType) {
this.nodeType = nodeType;
}
public NodeType getNodeType() {
return nodeType;
}
public void resetFirstFail() {
firstFailTime.set(0);
}
public boolean isFailed() {
if (firstFailTime.get() != 0) {
return System.currentTimeMillis() - firstFailTime.get() > connectionManager.getConfig().getFailedSlaveCheckInterval();
}
return false;
}
public void trySetupFistFail() {
firstFailTime.compareAndSet(0, System.currentTimeMillis());
}
public CompletableFuture shutdownAsync() {
connectionManager.getConnectionWatcher().remove(this);
return client.shutdownAsync().toCompletableFuture();
}
public RedisClient getClient() {
return client;
}
public boolean isFreezed() {
return freezeReason != null;
}
public void setFreezeReason(FreezeReason freezeReason) {
this.freezeReason = freezeReason;
if (freezeReason != null) {
this.initialized = false;
}
}
public FreezeReason getFreezeReason() {
return freezeReason;
}
public void reset() {
freeConnectionsCounter.removeListeners();
freeSubscribeConnectionsCounter.removeListeners();
}
public CompletableFuture acquireConnection(RedisCommand command) {
return freeConnectionsCounter.acquire();
}
public void releaseConnection() {
freeConnectionsCounter.release();
}
public void addConnection(RedisConnection conn) {
conn.setLastUsageTime(System.nanoTime());
if (conn instanceof RedisPubSubConnection) {
freeSubscribeConnections.add((RedisPubSubConnection) conn);
} else {
freeConnections.add(conn);
}
}
public RedisConnection pollConnection(RedisCommand command) {
RedisConnection c = freeConnections.poll();
if (c != null) {
c.incUsage();
}
return c;
}
public void releaseConnection(RedisConnection connection) {
if (connection.isClosed()) {
return;
}
if (client != connection.getRedisClient()) {
connection.closeAsync();
return;
}
connection.setLastUsageTime(System.nanoTime());
freeConnections.add(connection);
connection.decUsage();
}
public CompletionStage connect() {
CompletionStage future = client.connectAsync();
return future.whenComplete((conn, e) -> {
if (e != null) {
return;
}
onConnect(conn);
log.debug("new connection created: {}", conn);
allConnections.add(conn);
});
}
private void onConnect(final RedisConnection conn) {
conn.setConnectedListener(new Runnable() {
@Override
public void run() {
if (!connectionManager.isShuttingDown()) {
connectionManager.getConnectionEventsHub().fireConnect(conn.getRedisClient().getAddr());
}
}
});
conn.setDisconnectedListener(new Runnable() {
@Override
public void run() {
if (!connectionManager.isShuttingDown()) {
connectionManager.getConnectionEventsHub().fireDisconnect(conn.getRedisClient().getAddr());
}
}
});
connectionManager.getConnectionEventsHub().fireConnect(conn.getRedisClient().getAddr());
}
public CompletionStage connectPubSub() {
CompletionStage future = client.connectPubSubAsync();
return future.whenComplete((conn, e) -> {
if (e != null) {
return;
}
onConnect(conn);
log.debug("new pubsub connection created: {}", conn);
allSubscribeConnections.add(conn);
});
}
public Queue getAllConnections() {
return allConnections;
}
public Queue getAllSubscribeConnections() {
return allSubscribeConnections;
}
public RedisPubSubConnection pollSubscribeConnection() {
return freeSubscribeConnections.poll();
}
public void releaseSubscribeConnection(RedisPubSubConnection connection) {
if (connection.isClosed()) {
return;
}
if (client != connection.getRedisClient()) {
connection.closeAsync();
return;
}
connection.setLastUsageTime(System.nanoTime());
freeSubscribeConnections.add(connection);
}
public CompletableFuture acquireSubscribeConnection() {
return freeSubscribeConnectionsCounter.acquire();
}
public void releaseSubscribeConnection() {
freeSubscribeConnectionsCounter.release();
}
@Override
public String toString() {
return "[freeSubscribeConnectionsAmount=" + freeSubscribeConnections.size()
+ ", freeSubscribeConnectionsCounter=" + freeSubscribeConnectionsCounter
+ ", freeConnectionsAmount=" + freeConnections.size() + ", freeConnectionsCounter="
+ freeConnectionsCounter + ", freezeReason=" + freezeReason
+ ", client=" + client + ", nodeType=" + nodeType + ", firstFail=" + firstFailTime
+ "]";
}
}