public class ServiceDiscoveryImpl<T> extends Object implements ServiceDiscovery<T>
Constructor and Description |
---|
ServiceDiscoveryImpl(CuratorFramework client,
String basePath,
InstanceSerializer<T> serializer,
ServiceInstance<T> thisInstance,
boolean watchInstances) |
Modifier and Type | Method and Description |
---|---|
void |
close() |
protected void |
internalRegisterService(ServiceInstance<T> service) |
ServiceInstance<T> |
queryForInstance(String name,
String id)
Return a service instance POJO
|
Collection<ServiceInstance<T>> |
queryForInstances(String name)
Return all known instances for the given service
|
Collection<String> |
queryForNames()
Return the names of all known services
|
void |
registerService(ServiceInstance<T> service)
Register/re-register/update a service instance
|
ServiceCacheBuilder<T> |
serviceCacheBuilder()
Allocate a new service cache builder.
|
ServiceProviderBuilder<T> |
serviceProviderBuilder()
Allocate a new builder.
|
void |
start()
The discovery must be started before use
|
void |
unregisterService(ServiceInstance<T> service)
Unregister/remove a service instance
|
void |
updateService(ServiceInstance<T> service)
Update a service
|
public ServiceDiscoveryImpl(CuratorFramework client, String basePath, InstanceSerializer<T> serializer, ServiceInstance<T> thisInstance, boolean watchInstances)
client
- the clientbasePath
- base path to store dataserializer
- serializer for instances (e.g. JsonInstanceSerializer
)thisInstance
- instance that represents the service that is running. The instance will get auto-registeredwatchInstances
- if true, watches for changes to locally registered instancespublic void start() throws Exception
start
in interface ServiceDiscovery<T>
Exception
- errorspublic void close() throws IOException
close
in interface Closeable
close
in interface AutoCloseable
IOException
public void registerService(ServiceInstance<T> service) throws Exception
registerService
in interface ServiceDiscovery<T>
service
- service to addException
- errorspublic void updateService(ServiceInstance<T> service) throws Exception
ServiceDiscovery
updateService
in interface ServiceDiscovery<T>
service
- service to updateException
- errorsprotected void internalRegisterService(ServiceInstance<T> service) throws Exception
Exception
public void unregisterService(ServiceInstance<T> service) throws Exception
unregisterService
in interface ServiceDiscovery<T>
service
- the serviceException
- errorspublic ServiceProviderBuilder<T> serviceProviderBuilder()
ServiceProviderBuilder.providerStrategy(org.apache.curator.x.discovery.ProviderStrategy<T>)
is set to RoundRobinStrategy
serviceProviderBuilder
in interface ServiceDiscovery<T>
public ServiceCacheBuilder<T> serviceCacheBuilder()
serviceCacheBuilder
in interface ServiceDiscovery<T>
public Collection<String> queryForNames() throws Exception
queryForNames
in interface ServiceDiscovery<T>
Exception
- errorspublic Collection<ServiceInstance<T>> queryForInstances(String name) throws Exception
queryForInstances
in interface ServiceDiscovery<T>
name
- name of the serviceException
- errorspublic ServiceInstance<T> queryForInstance(String name, String id) throws Exception
queryForInstance
in interface ServiceDiscovery<T>
name
- name of the serviceid
- ID of the instancenull
if not foundException
- errorsCopyright © 2011–2023 The Apache Software Foundation. All rights reserved.