org.apache.dubbo.registry.client

Class FileSystemServiceDiscovery

java.lang.Object

org.apache.dubbo.registry.client.FileSystemServiceDiscovery

All Implemented Interfaces:

Comparable<Prioritized>, EventListener, Prioritized, ServiceDiscovery

public class FileSystemServiceDiscovery
extends Object
implements ServiceDiscovery, EventListener<ServiceInstancesChangedEvent>

File System ServiceDiscovery implementation

Since:

2.7.5

See Also:

FileSystemDynamicConfiguration

Field Summary

Fields inherited from interface org.apache.dubbo.common.lang.Prioritized

COMPARATOR, MAX_PRIORITY, MIN_PRIORITY, NORMAL_PRIORITY

Constructor Summary

Constructors

Constructor and Description
FileSystemServiceDiscovery()

Method Summary

Modifier and Type	Method and Description
void	destroy() Destroy the ServiceDiscovery
List<ServiceInstance>	getInstances(String serviceName) Gets all service instances by the specified service name.
Set<String>	getServices() Gets all service names
void	initialize(URL registryURL) Initializes the ServiceDiscovery
void	onConfigChanged(ConfigChangedEvent event)
void	onEvent(ServiceInstancesChangedEvent event)
void	register(ServiceInstance serviceInstance) Registers an instance of ServiceInstance.
void	unregister(ServiceInstance serviceInstance) Unregisters an instance of ServiceInstance.
void	update(ServiceInstance serviceInstance) Updates the registered ServiceInstance.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.dubbo.registry.client.ServiceDiscovery

addServiceInstancesChangedListener, dispatchServiceInstancesChangedEvent, dispatchServiceInstancesChangedEvent, dispatchServiceInstancesChangedEvent, dispatchServiceInstancesChangedEvent, getDefaultPageSize, getInstances, getInstances, getInstances, toString

Methods inherited from interface org.apache.dubbo.event.EventListener

findEventType, findEventType, findEventType, getPriority

Methods inherited from interface org.apache.dubbo.common.lang.Prioritized

compareTo

Constructor Detail

FileSystemServiceDiscovery

public FileSystemServiceDiscovery()

Method Detail

onEvent

public void onEvent(ServiceInstancesChangedEvent event)

initialize

public void initialize(URL registryURL)
                throws Exception

Description copied from interface: ServiceDiscovery

Initializes the ServiceDiscovery

Specified by:

initialize in interface ServiceDiscovery

Parameters:

registryURL - the url to connect service registry

Throws:

Exception - If met with error

onConfigChanged

public void onConfigChanged(ConfigChangedEvent event)

destroy

public void destroy()
             throws Exception

Description copied from interface: ServiceDiscovery

Destroy the ServiceDiscovery

Specified by:

destroy in interface ServiceDiscovery

Throws:

Exception - If met with error

getInstances

public List<ServiceInstance> getInstances(String serviceName)

Description copied from interface: ServiceDiscovery

Gets all service instances by the specified service name.

Specified by:

getInstances in interface ServiceDiscovery

Parameters:

serviceName - the service name

Returns:

non-null List

register

public void register(ServiceInstance serviceInstance)
              throws RuntimeException

Description copied from interface: ServiceDiscovery

Registers an instance of ServiceInstance.

Specified by:

register in interface ServiceDiscovery

Parameters:

serviceInstance - an instance of ServiceInstance to be registered

Throws:

RuntimeException - if failed

update

public void update(ServiceInstance serviceInstance)
            throws RuntimeException

Description copied from interface: ServiceDiscovery

Updates the registered ServiceInstance.

Specified by:

update in interface ServiceDiscovery

Parameters:

serviceInstance - the registered ServiceInstance

Throws:

RuntimeException - if failed

unregister

public void unregister(ServiceInstance serviceInstance)
                throws RuntimeException

Description copied from interface: ServiceDiscovery

Unregisters an instance of ServiceInstance.

Specified by:

unregister in interface ServiceDiscovery

Parameters:

serviceInstance - an instance of ServiceInstance to be deregistered

Throws:

RuntimeException - if failed

getServices

public Set<String> getServices()

Description copied from interface: ServiceDiscovery

Gets all service names

Specified by:

getServices in interface ServiceDiscovery

Returns:

non-null read-only Set