Package org.apache.dubbo.rpc.cluster.router.condition.config

Class ListenableStateRouter<T>

java.lang.Object

org.apache.dubbo.rpc.cluster.router.state.AbstractStateRouter<T>

org.apache.dubbo.rpc.cluster.router.condition.config.ListenableStateRouter<T>

All Implemented Interfaces:

EventListener, org.apache.dubbo.common.config.configcenter.ConfigurationListener, StateRouter<T>

Direct Known Subclasses:

AppStateRouter, ProviderAppStateRouter, ServiceStateRouter

public abstract class ListenableStateRouter<T>
extends AbstractStateRouter<T>
implements org.apache.dubbo.common.config.configcenter.ConfigurationListener

Abstract router which listens to dynamic configuration

Field Summary

Fields

Modifier and Type	Field	Description
static final String	NAME
static final String	RULE_SUFFIX

Constructor Summary

Constructors

Constructor	Description
ListenableStateRouter(org.apache.dubbo.common.URL url, String ruleKey)

Method Summary

Modifier and Type	Method	Description
BitList<Invoker<T>>	doRoute(BitList<Invoker<T>> invokers, org.apache.dubbo.common.URL url, Invocation invocation, boolean needToPrintMessage, org.apache.dubbo.common.utils.Holder<RouterSnapshotNode<T>> nodeHolder, org.apache.dubbo.common.utils.Holder<String> messageHolder)
boolean	isForce()	To decide whether this router should take effect when none of the invoker can match the router rule, which means the StateRouter.route(BitList, URL, Invocation, boolean, Holder) would be empty.
void	process(org.apache.dubbo.common.config.configcenter.ConfigChangedEvent event)
void	stop()

Methods inherited from class org.apache.dubbo.rpc.cluster.router.state.AbstractStateRouter

buildSnapshot, getNextRouter, getRuleRepository, getUrl, isRuntime, notify, route, setForce, setNextRouter, setUrl

Methods inherited from class java.lang.Object

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

Field Details

NAME

public static final String NAME

See Also:

• Constant Field Values

RULE_SUFFIX

public static final String RULE_SUFFIX

See Also:

• Constant Field Values

Constructor Details

ListenableStateRouter

public ListenableStateRouter(org.apache.dubbo.common.URL url,
 String ruleKey)

Method Details

process

public void process(org.apache.dubbo.common.config.configcenter.ConfigChangedEvent event)

Specified by:

process in interface org.apache.dubbo.common.config.configcenter.ConfigurationListener

doRoute

public BitList<Invoker<T>> doRoute(BitList<Invoker<T>> invokers,
 org.apache.dubbo.common.URL url,
 Invocation invocation,
 boolean needToPrintMessage,
 org.apache.dubbo.common.utils.Holder<RouterSnapshotNode<T>> nodeHolder,
 org.apache.dubbo.common.utils.Holder<String> messageHolder)
                            throws RpcException

Throws:

RpcException

isForce

public boolean isForce()

Description copied from interface: StateRouter

To decide whether this router should take effect when none of the invoker can match the router rule, which means the StateRouter.route(BitList, URL, Invocation, boolean, Holder) would be empty. Most of time, most router implementation would default this value to false.

Specified by:

isForce in interface StateRouter<T>

Overrides:

isForce in class AbstractStateRouter<T>

Returns:

true to execute if none of invokers matches the current router

stop

public void stop()

Specified by:

stop in interface StateRouter<T>