org.springframework.remoting.rmi

Class RmiRegistryFactoryBean

java.lang.Object

org.springframework.remoting.rmi.RmiRegistryFactoryBean

All Implemented Interfaces:

org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.FactoryBean<java.rmi.registry.Registry>, org.springframework.beans.factory.InitializingBean

public class RmiRegistryFactoryBean
extends java.lang.Object
implements org.springframework.beans.factory.FactoryBean<java.rmi.registry.Registry>, org.springframework.beans.factory.InitializingBean, org.springframework.beans.factory.DisposableBean

FactoryBean that locates a Registry and exposes it for bean references. Can also create a local RMI registry on the fly if none exists already.

Can be used to set up and pass around the actual Registry object to applications objects that need to work with RMI. One example for such an object that needs to work with RMI is Spring's RmiServiceExporter, which either works with a passed-in Registry reference or falls back to the registry as specified by its local properties and defaults.

Also useful to enforce creation of a local RMI registry at a given port, for example for a JMX connector. If used in conjunction with ConnectorServerFactoryBean, it is recommended to mark the connector definition (ConnectorServerFactoryBean) as "depends-on" the registry definition (RmiRegistryFactoryBean), to guarantee starting up the registry first.

Note: The implementation of this class mirrors the corresponding logic in RmiServiceExporter, and also offers the same customization hooks. RmiServiceExporter implements its own registry lookup as a convenience: It is very common to simply rely on the registry defaults.

Since:

1.2.3

Author:

Juergen Hoeller

See Also:

RmiServiceExporter.setRegistry(java.rmi.registry.Registry), ConnectorServerFactoryBean, Registry, LocateRegistry

Field Summary

Fields

Modifier and Type	Field and Description
protected Log	logger

Constructor Summary

Constructors

Constructor and Description
RmiRegistryFactoryBean()

Method Summary

Modifier and Type	Method and Description
void	afterPropertiesSet()
void	destroy() Unexport the RMI registry on bean factory shutdown, provided that this bean actually created a registry.
java.lang.String	getHost() Return the host of the registry for the exported RMI service.
java.rmi.registry.Registry	getObject()
java.lang.Class<? extends java.rmi.registry.Registry>	getObjectType()
int	getPort() Return the port of the registry for the exported RMI service.
protected java.rmi.registry.Registry	getRegistry(int registryPort) Locate or create the RMI registry.
protected java.rmi.registry.Registry	getRegistry(int registryPort, java.rmi.server.RMIClientSocketFactory clientSocketFactory, java.rmi.server.RMIServerSocketFactory serverSocketFactory) Locate or create the RMI registry.
protected java.rmi.registry.Registry	getRegistry(java.lang.String registryHost, int registryPort, java.rmi.server.RMIClientSocketFactory clientSocketFactory, java.rmi.server.RMIServerSocketFactory serverSocketFactory) Locate or create the RMI registry.
boolean	isSingleton()
void	setAlwaysCreate(boolean alwaysCreate) Set whether to always create the registry in-process, not attempting to locate an existing registry at the specified port.
void	setClientSocketFactory(java.rmi.server.RMIClientSocketFactory clientSocketFactory) Set a custom RMI client socket factory to use for the RMI registry.
void	setHost(java.lang.String host) Set the host of the registry for the exported RMI service, i.e.
void	setPort(int port) Set the port of the registry for the exported RMI service, i.e.
void	setServerSocketFactory(java.rmi.server.RMIServerSocketFactory serverSocketFactory) Set a custom RMI server socket factory to use for the RMI registry.
protected void	testRegistry(java.rmi.registry.Registry registry) Test the given RMI registry, calling some operation on it to check whether it is still active.

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected final Log logger

Constructor Detail

RmiRegistryFactoryBean

public RmiRegistryFactoryBean()

Method Detail

setHost

public void setHost(java.lang.String host)

Set the host of the registry for the exported RMI service, i.e. rmi://HOST:port/name

Default is localhost.

getHost

public java.lang.String getHost()

Return the host of the registry for the exported RMI service.

setPort

public void setPort(int port)

Set the port of the registry for the exported RMI service, i.e. rmi://host:PORT/name

Default is Registry.REGISTRY_PORT (1099).

getPort

public int getPort()

Return the port of the registry for the exported RMI service.

setClientSocketFactory

public void setClientSocketFactory(java.rmi.server.RMIClientSocketFactory clientSocketFactory)

Set a custom RMI client socket factory to use for the RMI registry.

If the given object also implements java.rmi.server.RMIServerSocketFactory, it will automatically be registered as server socket factory too.

See Also:

setServerSocketFactory(java.rmi.server.RMIServerSocketFactory), RMIClientSocketFactory, RMIServerSocketFactory, LocateRegistry.getRegistry(String, int, java.rmi.server.RMIClientSocketFactory)

setServerSocketFactory

public void setServerSocketFactory(java.rmi.server.RMIServerSocketFactory serverSocketFactory)

Set a custom RMI server socket factory to use for the RMI registry.

Only needs to be specified when the client socket factory does not implement java.rmi.server.RMIServerSocketFactory already.

See Also:

setClientSocketFactory(java.rmi.server.RMIClientSocketFactory), RMIClientSocketFactory, RMIServerSocketFactory, LocateRegistry.createRegistry(int, RMIClientSocketFactory, java.rmi.server.RMIServerSocketFactory)

setAlwaysCreate

public void setAlwaysCreate(boolean alwaysCreate)

Set whether to always create the registry in-process, not attempting to locate an existing registry at the specified port.

Default is "false". Switch this flag to "true" in order to avoid the overhead of locating an existing registry when you always intend to create a new registry in any case.

afterPropertiesSet

public void afterPropertiesSet()
                        throws java.lang.Exception

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean

Throws:

java.lang.Exception

getRegistry

protected java.rmi.registry.Registry getRegistry(java.lang.String registryHost,
                                                 int registryPort,
                                                 @Nullable
                                                 java.rmi.server.RMIClientSocketFactory clientSocketFactory,
                                                 @Nullable
                                                 java.rmi.server.RMIServerSocketFactory serverSocketFactory)
                                          throws java.rmi.RemoteException

Locate or create the RMI registry.

Parameters:

registryHost - the registry host to use (if this is specified, no implicit creation of a RMI registry will happen)

registryPort - the registry port to use

clientSocketFactory - the RMI client socket factory for the registry (if any)

serverSocketFactory - the RMI server socket factory for the registry (if any)

Returns:

the RMI registry

Throws:

java.rmi.RemoteException - if the registry couldn't be located or created

getRegistry

protected java.rmi.registry.Registry getRegistry(int registryPort,
                                                 @Nullable
                                                 java.rmi.server.RMIClientSocketFactory clientSocketFactory,
                                                 @Nullable
                                                 java.rmi.server.RMIServerSocketFactory serverSocketFactory)
                                          throws java.rmi.RemoteException

Locate or create the RMI registry.

Parameters:

registryPort - the registry port to use

clientSocketFactory - the RMI client socket factory for the registry (if any)

serverSocketFactory - the RMI server socket factory for the registry (if any)

Returns:

the RMI registry

Throws:

java.rmi.RemoteException - if the registry couldn't be located or created

getRegistry

protected java.rmi.registry.Registry getRegistry(int registryPort)
                                          throws java.rmi.RemoteException

Locate or create the RMI registry.

Parameters:

registryPort - the registry port to use

Returns:

the RMI registry

Throws:

java.rmi.RemoteException - if the registry couldn't be located or created

testRegistry

protected void testRegistry(java.rmi.registry.Registry registry)
                     throws java.rmi.RemoteException

Test the given RMI registry, calling some operation on it to check whether it is still active.

Default implementation calls Registry.list().

Parameters:

registry - the RMI registry to test

Throws:

java.rmi.RemoteException - if thrown by registry methods

See Also:

Registry.list()

getObject

public java.rmi.registry.Registry getObject()
                                     throws java.lang.Exception

Specified by:

getObject in interface org.springframework.beans.factory.FactoryBean<java.rmi.registry.Registry>

Throws:

java.lang.Exception

getObjectType

public java.lang.Class<? extends java.rmi.registry.Registry> getObjectType()

Specified by:

getObjectType in interface org.springframework.beans.factory.FactoryBean<java.rmi.registry.Registry>

isSingleton

public boolean isSingleton()

Specified by:

isSingleton in interface org.springframework.beans.factory.FactoryBean<java.rmi.registry.Registry>

destroy

public void destroy()
             throws java.rmi.RemoteException

Unexport the RMI registry on bean factory shutdown, provided that this bean actually created a registry.

Specified by:

destroy in interface org.springframework.beans.factory.DisposableBean

Throws:

java.rmi.RemoteException