com.alibaba.nacos.core.remote

类 ConnectionManager

java.lang.Object

com.alibaba.nacos.common.notify.listener.Subscriber<ConnectionLimitRuleChangeEvent>

com.alibaba.nacos.core.remote.ConnectionManager

@Service
public class ConnectionManager
extends Subscriber<ConnectionLimitRuleChangeEvent>

connect manager.

版本:

$Id: ConnectionManager.java, v 0.1 2020年07月13日 7:07 PM liuzunfei Exp $

作者:

liuzunfei

嵌套类概要

嵌套类

限定符和类型	类和说明
(专用程序包) static class	ConnectionManager.ConnectionLimitRule

字段概要

字段

限定符和类型	字段和说明
private ClientConnectionEventListenerRegistry	clientConnectionEventListenerRegistry
private java.util.Map<java.lang.String,java.util.concurrent.atomic.AtomicInteger>	connectionForClientIp
private ConnectionManager.ConnectionLimitRule	connectionLimitRule connection limit rule.
(专用程序包) java.util.Map<java.lang.String,Connection>	connections
private static long	KEEP_ALIVE_TIME 4 times of client keep alive.
private int	loadClient current loader adjust count,only effective once,use to re balance.
(专用程序包) java.lang.String	redirectAddress
static java.lang.String	RULE_FILE_NAME

构造器概要

构造器

构造器和说明
ConnectionManager()

方法概要

限定符和类型	方法和说明
private com.alibaba.nacos.api.remote.request.RequestMeta	buildMeta()
private boolean	checkLimit(Connection connection)
boolean	checkValid(java.lang.String connectionId) check connection id is valid.
java.util.Map<java.lang.String,Connection>	currentClients()
int	currentClientsCount() get all client count.
int	currentClientsCount(java.util.Map<java.lang.String,java.lang.String> filterLabels) get client count with labels filter.
int	currentSdkClientCount() get client count from sdk.
Connection	getConnection(java.lang.String connectionId) get by connection id.
java.util.List<Connection>	getConnectionByIp(java.lang.String clientIp) get by client ip.
ConnectionManager.ConnectionLimitRule	getConnectionLimitRule()
int	getCurrentConnectionCount() get current connections count.
private java.io.File	getRuleFile()
protected void	initLimitRue()
private boolean	isOverLimit() check if over limit.
void	loadCount(int loadClient, java.lang.String redirectAddress)
private void	loadRuleFromLocal()
void	loadSingle(java.lang.String connectionId, java.lang.String redirectAddress) send load request to spefic connetionId.
void	onEvent(ConnectionLimitRuleChangeEvent event)
void	refreshActiveTime(java.lang.String connectionId) regresh connection active time.
boolean	register(java.lang.String connectionId, Connection connection) register a new connect.
private void	registerFileWatch()
private void	saveRuleToLocal(ConnectionManager.ConnectionLimitRule limitRule)
void	start() Start Task：Expel the connection which active Time expire.
java.lang.Class<? extends Event>	subscribeType()
boolean	traced(java.lang.String clientIp) if monitor detail.
void	unregister(java.lang.String connectionId) unregister a connection .

从类继承的方法 com.alibaba.nacos.common.notify.listener.Subscriber

executor, ignoreExpireEvent, scopeMatches

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

RULE_FILE_NAME

public static final java.lang.String RULE_FILE_NAME

另请参阅:

常量字段值

KEEP_ALIVE_TIME

private static final long KEEP_ALIVE_TIME

4 times of client keep alive.

另请参阅:

常量字段值

connectionLimitRule

private ConnectionManager.ConnectionLimitRule connectionLimitRule

connection limit rule.

loadClient

private int loadClient

current loader adjust count,only effective once,use to re balance.

redirectAddress

java.lang.String redirectAddress

connectionForClientIp

private java.util.Map<java.lang.String,java.util.concurrent.atomic.AtomicInteger> connectionForClientIp

connections

java.util.Map<java.lang.String,Connection> connections

clientConnectionEventListenerRegistry

@Autowired
private ClientConnectionEventListenerRegistry clientConnectionEventListenerRegistry

构造器详细资料

ConnectionManager

public ConnectionManager()

方法详细资料

traced

public boolean traced(java.lang.String clientIp)

if monitor detail.

参数:

clientIp - clientIp.

返回:

initLimitRue

@PostConstruct
protected void initLimitRue()

checkValid

public boolean checkValid(java.lang.String connectionId)

check connection id is valid.

参数:

connectionId - connectionId to be check.

返回:

is valid or not.

register

public boolean register(java.lang.String connectionId,
                        Connection connection)

register a new connect.

参数:

connectionId - connectionId

connection - connection

checkLimit

private boolean checkLimit(Connection connection)

unregister

public void unregister(java.lang.String connectionId)

unregister a connection .

参数:

connectionId - connectionId.

getConnection

public Connection getConnection(java.lang.String connectionId)

get by connection id.

参数:

connectionId - connection id.

返回:

connection of the id.

getConnectionByIp

public java.util.List<Connection> getConnectionByIp(java.lang.String clientIp)

get by client ip.

参数:

clientIp - client ip.

返回:

connections of the client ip.

getCurrentConnectionCount

public int getCurrentConnectionCount()

get current connections count.

返回:

get all connection count

refreshActiveTime

public void refreshActiveTime(java.lang.String connectionId)

regresh connection active time.

参数:

connectionId - connectionId.

start

@PostConstruct
public void start()

Start Task：Expel the connection which active Time expire.

buildMeta

private com.alibaba.nacos.api.remote.request.RequestMeta buildMeta()

loadCount

public void loadCount(int loadClient,
                      java.lang.String redirectAddress)

loadSingle

public void loadSingle(java.lang.String connectionId,
                       java.lang.String redirectAddress)

send load request to spefic connetionId.

参数:

connectionId - connection id of client.

redirectAddress - server address to redirect.

currentClientsCount

public int currentClientsCount()

get all client count.

返回:

client count.

currentClientsCount

public int currentClientsCount(java.util.Map<java.lang.String,java.lang.String> filterLabels)

get client count with labels filter.

参数:

filterLabels - label to filter client count.

返回:

count with the specific filter labels.

currentSdkClientCount

public int currentSdkClientCount()

get client count from sdk.

返回:

sdk client count.

currentClients

public java.util.Map<java.lang.String,Connection> currentClients()

isOverLimit

private boolean isOverLimit()

check if over limit.

返回:

over limit or not.

onEvent

public void onEvent(ConnectionLimitRuleChangeEvent event)

指定者:

onEvent 在类中 Subscriber<ConnectionLimitRuleChangeEvent>

subscribeType

public java.lang.Class<? extends Event> subscribeType()

指定者:

subscribeType 在类中 Subscriber<ConnectionLimitRuleChangeEvent>

getConnectionLimitRule

public ConnectionManager.ConnectionLimitRule getConnectionLimitRule()

loadRuleFromLocal

private void loadRuleFromLocal()
                        throws java.lang.Exception

抛出:

java.lang.Exception

saveRuleToLocal

private void saveRuleToLocal(ConnectionManager.ConnectionLimitRule limitRule)
                      throws java.io.IOException

抛出:

java.io.IOException

getRuleFile

private java.io.File getRuleFile()

registerFileWatch

private void registerFileWatch()