org.apache.dubbo.rpc.cluster.support.wrapper

Class ScopeClusterInvoker<T>

java.lang.Object

org.apache.dubbo.rpc.cluster.support.wrapper.ScopeClusterInvoker<T>

Type Parameters:

T - the type of service interface

All Implemented Interfaces:

org.apache.dubbo.common.Node, ClusterInvoker<T>, Invoker<T>, ExporterChangeListener

public class ScopeClusterInvoker<T>
extends Object
implements ClusterInvoker<T>, ExporterChangeListener

ScopeClusterInvoker is a cluster invoker which handles the invocation logic of a single service in a specific scope.

It selects between local and remote invoker at runtime.

Constructor Summary

Constructors

Constructor and Description
ScopeClusterInvoker(Directory<T> directory, Invoker<T> invoker)

Method Summary

Modifier and Type	Method and Description
void	destroy()
Directory<T>	getDirectory()
Class<T>	getInterface()
Invoker<?>	getInvoker()
org.apache.dubbo.common.URL	getRegistryUrl()
org.apache.dubbo.common.URL	getUrl()
Result	invoke(Invocation invocation) Checks if the current ScopeClusterInvoker is exported to the local JVM and invokes the corresponding Invoker.
boolean	isAvailable()
boolean	isDestroyed()
void	onExporterChangeExport(Exporter<?> exporter)
void	onExporterChangeUnExport(Exporter<?> exporter)
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.dubbo.rpc.cluster.ClusterInvoker

hasProxyInvokers, isServiceDiscovery

Constructor Detail

ScopeClusterInvoker

public ScopeClusterInvoker(Directory<T> directory,
                           Invoker<T> invoker)

Method Detail

getUrl

public org.apache.dubbo.common.URL getUrl()

Specified by:

getUrl in interface org.apache.dubbo.common.Node

getRegistryUrl

public org.apache.dubbo.common.URL getRegistryUrl()

Specified by:

getRegistryUrl in interface ClusterInvoker<T>

getDirectory

public Directory<T> getDirectory()

Specified by:

getDirectory in interface ClusterInvoker<T>

isDestroyed

public boolean isDestroyed()

Specified by:

isDestroyed in interface ClusterInvoker<T>

isAvailable

public boolean isAvailable()

Specified by:

isAvailable in interface org.apache.dubbo.common.Node

destroy

public void destroy()

Specified by:

destroy in interface org.apache.dubbo.common.Node

getInterface

public Class<T> getInterface()

Specified by:

getInterface in interface Invoker<T>

invoke

public Result invoke(Invocation invocation)
              throws RpcException

Checks if the current ScopeClusterInvoker is exported to the local JVM and invokes the corresponding Invoker. If it's not exported locally, then it delegates the invocation to the original Invoker.

Specified by:

invoke in interface Invoker<T>

Parameters:

invocation - the invocation to be performed

Returns:

the result of the invocation

Throws:

RpcException - if there was an error during the invocation

onExporterChangeExport

public void onExporterChangeExport(Exporter<?> exporter)

Specified by:

onExporterChangeExport in interface ExporterChangeListener

onExporterChangeUnExport

public void onExporterChangeUnExport(Exporter<?> exporter)

Specified by:

onExporterChangeUnExport in interface ExporterChangeListener

getInvoker

public Invoker<?> getInvoker()

toString

public String toString()

Overrides:

toString in class Object