public class ServiceDiscoveryImpl<T> extends java.lang.Object implements ServiceDiscovery<T>
Modifier and Type | Field and Description |
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static int |
DEFAULT_REFRESH_PADDING |
Constructor and Description |
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ServiceDiscoveryImpl(CuratorFramework client,
java.lang.String basePath,
InstanceSerializer<T> serializer,
ServiceInstance<T> thisInstance) |
Modifier and Type | Method and Description |
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void |
close() |
ServiceInstance<T> |
queryForInstance(java.lang.String name,
java.lang.String id)
Return a service instance POJO
|
java.util.Collection<ServiceInstance<T>> |
queryForInstances(java.lang.String name)
Return all known instances for the given service
|
java.util.Collection<java.lang.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
|
public ServiceDiscoveryImpl(CuratorFramework client, java.lang.String basePath, InstanceSerializer<T> serializer, ServiceInstance<T> thisInstance)
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-registeredpublic void start() throws java.lang.Exception
start
in interface ServiceDiscovery<T>
java.lang.Exception
- errorspublic void close() throws java.io.IOException
close
in interface java.io.Closeable
close
in interface java.lang.AutoCloseable
java.io.IOException
public void registerService(ServiceInstance<T> service) throws java.lang.Exception
registerService
in interface ServiceDiscovery<T>
service
- service to addjava.lang.Exception
- errorspublic void unregisterService(ServiceInstance<T> service) throws java.lang.Exception
unregisterService
in interface ServiceDiscovery<T>
service
- the servicejava.lang.Exception
- errorspublic ServiceProviderBuilder<T> serviceProviderBuilder()
ServiceProviderBuilder.providerStrategy(com.netflix.curator.x.discovery.ProviderStrategy<T>)
is set to RoundRobinStrategy
and ServiceProviderBuilder.refreshPaddingMs(int)
is set to 1 second.serviceProviderBuilder
in interface ServiceDiscovery<T>
public ServiceCacheBuilder<T> serviceCacheBuilder()
serviceCacheBuilder
in interface ServiceDiscovery<T>
public java.util.Collection<java.lang.String> queryForNames() throws java.lang.Exception
queryForNames
in interface ServiceDiscovery<T>
java.lang.Exception
- errorspublic java.util.Collection<ServiceInstance<T>> queryForInstances(java.lang.String name) throws java.lang.Exception
queryForInstances
in interface ServiceDiscovery<T>
name
- name of the servicejava.lang.Exception
- errorspublic ServiceInstance<T> queryForInstance(java.lang.String name, java.lang.String id) throws java.lang.Exception
queryForInstance
in interface ServiceDiscovery<T>
name
- name of the serviceid
- ID of the instancenull
if not foundjava.lang.Exception
- errors