Class RMIConnectionImpl

java.lang.Object

javax.management.remote.rmi.RMIConnectionImpl

All Implemented Interfaces:

Closeable, AutoCloseable, Remote, Unreferenced, RMIConnection

public class RMIConnectionImpl
extends Object
implements RMIConnection, Unreferenced

Implementation of the RMIConnection interface. User code will not usually reference this class.

Since:

1.5

Constructor Summary

Constructors

Constructor	Description
RMIConnectionImpl(RMIServerImpl rmiServer, String connectionId, ClassLoader defaultClassLoader, Subject subject, Map<String,?> env)	Constructs a new RMIConnection.

Method Summary

Modifier and Type	Method	Description
void	addNotificationListener(ObjectName name, ObjectName listener, MarshalledObject filter, MarshalledObject handback, Subject delegationSubject)	Handles the method MBeanServerConnection.addNotificationListener(ObjectName, ObjectName, NotificationFilter, Object).
Integer[]	addNotificationListeners(ObjectName[] names, MarshalledObject[] filters, Subject[] delegationSubjects)	Handles the method MBeanServerConnection.addNotificationListener(ObjectName, NotificationListener, NotificationFilter, Object).
void	close()	Closes this connection.
ObjectInstance	createMBean(String className, ObjectName name, MarshalledObject params, String[] signature, Subject delegationSubject)	Handles the method MBeanServerConnection.createMBean(String, ObjectName, Object[], String[]).
ObjectInstance	createMBean(String className, ObjectName name, ObjectName loaderName, MarshalledObject params, String[] signature, Subject delegationSubject)	Handles the method MBeanServerConnection.createMBean(String, ObjectName, ObjectName, Object[], String[]).
ObjectInstance	createMBean(String className, ObjectName name, ObjectName loaderName, Subject delegationSubject)	Handles the method MBeanServerConnection.createMBean(String, ObjectName, ObjectName).
ObjectInstance	createMBean(String className, ObjectName name, Subject delegationSubject)	Handles the method MBeanServerConnection.createMBean(String, ObjectName).
NotificationResult	fetchNotifications(long clientSequenceNumber, int maxNotifications, long timeout)	Retrieves notifications from the connector server.
Object	getAttribute(ObjectName name, String attribute, Subject delegationSubject)	Handles the method MBeanServerConnection.getAttribute(ObjectName, String).
AttributeList	getAttributes(ObjectName name, String[] attributes, Subject delegationSubject)	Handles the method MBeanServerConnection.getAttributes(ObjectName, String[]).
String	getConnectionId()	Returns the connection ID.
String	getDefaultDomain(Subject delegationSubject)	Handles the method MBeanServerConnection.getDefaultDomain().
String[]	getDomains(Subject delegationSubject)	Handles the method MBeanServerConnection.getDomains().
Integer	getMBeanCount(Subject delegationSubject)	Handles the method MBeanServerConnection.getMBeanCount().
MBeanInfo	getMBeanInfo(ObjectName name, Subject delegationSubject)	Handles the method MBeanServerConnection.getMBeanInfo(ObjectName).
ObjectInstance	getObjectInstance(ObjectName name, Subject delegationSubject)	Handles the method MBeanServerConnection.getObjectInstance(ObjectName).
Object	invoke(ObjectName name, String operationName, MarshalledObject params, String[] signature, Subject delegationSubject)	Handles the method MBeanServerConnection.invoke(ObjectName, String, Object[], String[]).
boolean	isInstanceOf(ObjectName name, String className, Subject delegationSubject)	Handles the method MBeanServerConnection.isInstanceOf(ObjectName, String).
boolean	isRegistered(ObjectName name, Subject delegationSubject)	Handles the method MBeanServerConnection.isRegistered(ObjectName).
Set<ObjectInstance>	queryMBeans(ObjectName name, MarshalledObject query, Subject delegationSubject)	Handles the method MBeanServerConnection.queryMBeans(ObjectName, QueryExp).
Set<ObjectName>	queryNames(ObjectName name, MarshalledObject query, Subject delegationSubject)	Handles the method MBeanServerConnection.queryNames(ObjectName, QueryExp).
void	removeNotificationListener(ObjectName name, ObjectName listener, MarshalledObject filter, MarshalledObject handback, Subject delegationSubject)	Handles the method MBeanServerConnection.removeNotificationListener(ObjectName, ObjectName, NotificationFilter, Object).
void	removeNotificationListener(ObjectName name, ObjectName listener, Subject delegationSubject)	Handles the method MBeanServerConnection.removeNotificationListener(ObjectName, ObjectName).
void	removeNotificationListeners(ObjectName name, Integer[] listenerIDs, Subject delegationSubject)	Handles the removeNotificationListener(ObjectName, NotificationListener) and removeNotificationListener(ObjectName, NotificationListener, NotificationFilter, Object) methods.
void	setAttribute(ObjectName name, MarshalledObject attribute, Subject delegationSubject)	Handles the method MBeanServerConnection.setAttribute(ObjectName, Attribute).
AttributeList	setAttributes(ObjectName name, MarshalledObject attributes, Subject delegationSubject)	Handles the method MBeanServerConnection.setAttributes(ObjectName, AttributeList).
String	toString()	Returns a string representation of this object.
void	unreferenced()	Called by the RMI runtime sometime after the runtime determines that the reference list, the list of clients referencing the remote object, becomes empty.
void	unregisterMBean(ObjectName name, Subject delegationSubject)	Handles the method MBeanServerConnection.unregisterMBean(ObjectName).

Methods declared in class java.lang.Object

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

Constructor Details

RMIConnectionImpl

public RMIConnectionImpl(RMIServerImpl rmiServer,
 String connectionId,
 ClassLoader defaultClassLoader,
 Subject subject,
 Map<String,?> env)

Constructs a new RMIConnection. This connection can be used with the JRMP transport. This object does not export itself: it is the responsibility of the caller to export it appropriately (see RMIJRMPServerImpl.makeClient(String,Subject)).

Parameters:

rmiServer - The RMIServerImpl object for which this connection is created. The behavior is unspecified if this parameter is null.

connectionId - The ID for this connection. The behavior is unspecified if this parameter is null.

defaultClassLoader - The default ClassLoader to be used when deserializing marshalled objects. Can be null, to signify the bootstrap class loader.

subject - the authenticated subject to be used for authorization. Can be null, to signify that no subject has been authenticated.

env - the environment containing attributes for the new RMIServerImpl. Can be null, equivalent to an empty map.

Method Details

getConnectionId

public String getConnectionId()
                       throws IOException

Description copied from interface: RMIConnection

Returns the connection ID. This string is different for every open connection to a given RMI connector server.

Specified by:

getConnectionId in interface RMIConnection

Returns:

the connection ID

Throws:

IOException - if a general communication exception occurred.

See Also:

• RMIConnector.connect

close

public void close()
           throws IOException

Description copied from interface: RMIConnection

Closes this connection. On return from this method, the RMI object implementing this interface is unexported, so further remote calls to it will fail.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in interface RMIConnection

Throws:

IOException - if the connection could not be closed, or the Remote object could not be unexported, or there was a communication failure when transmitting the remote close request.

unreferenced

public void unreferenced()

Description copied from interface: Unreferenced

Called by the RMI runtime sometime after the runtime determines that the reference list, the list of clients referencing the remote object, becomes empty.

Specified by:

unreferenced in interface Unreferenced

createMBean

public ObjectInstance createMBean(String className,
 ObjectName name,
 Subject delegationSubject)
                           throws ReflectionException,
InstanceAlreadyExistsException,
MBeanRegistrationException,
MBeanException,
NotCompliantMBeanException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.createMBean(String, ObjectName).

Specified by:

createMBean in interface RMIConnection

Parameters:

className - The class name of the MBean to be instantiated.

name - The object name of the MBean. May be null.

delegationSubject - must be null.

Returns:

An ObjectInstance, containing the ObjectName and the Java class name of the newly instantiated MBean. If the contained ObjectName is n, the contained Java class name is getMBeanInfo(n).getClassName().

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

ReflectionException - Wraps a java.lang.ClassNotFoundException or a java.lang.Exception that occurred when trying to invoke the MBean's constructor.

InstanceAlreadyExistsException - The MBean is already under the control of the MBean server.

MBeanRegistrationException - The preRegister (MBeanRegistration interface) method of the MBean has thrown an exception. The MBean will not be registered.

MBeanException - The constructor of the MBean has thrown an exception.

NotCompliantMBeanException - This class is not a JMX compliant MBean.

IOException - if a general communication exception occurred.

createMBean

public ObjectInstance createMBean(String className,
 ObjectName name,
 ObjectName loaderName,
 Subject delegationSubject)
                           throws ReflectionException,
InstanceAlreadyExistsException,
MBeanRegistrationException,
MBeanException,
NotCompliantMBeanException,
InstanceNotFoundException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.createMBean(String, ObjectName, ObjectName).

Specified by:

createMBean in interface RMIConnection

Parameters:

className - The class name of the MBean to be instantiated.

name - The object name of the MBean. May be null.

loaderName - The object name of the class loader to be used.

delegationSubject - must be null.

Returns:

An ObjectInstance, containing the ObjectName and the Java class name of the newly instantiated MBean. If the contained ObjectName is n, the contained Java class name is getMBeanInfo(n).getClassName().

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

ReflectionException - Wraps a java.lang.ClassNotFoundException or a java.lang.Exception that occurred when trying to invoke the MBean's constructor.

InstanceAlreadyExistsException - The MBean is already under the control of the MBean server.

MBeanRegistrationException - The preRegister (MBeanRegistration interface) method of the MBean has thrown an exception. The MBean will not be registered.

MBeanException - The constructor of the MBean has thrown an exception.

NotCompliantMBeanException - This class is not a JMX compliant MBean.

InstanceNotFoundException - The specified class loader is not registered in the MBean server.

IOException - if a general communication exception occurred.

createMBean

public ObjectInstance createMBean(String className,
 ObjectName name,
 MarshalledObject params,
 String[] signature,
 Subject delegationSubject)
                           throws ReflectionException,
InstanceAlreadyExistsException,
MBeanRegistrationException,
MBeanException,
NotCompliantMBeanException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.createMBean(String, ObjectName, Object[], String[]). The Object[] parameter is wrapped in a MarshalledObject.

Specified by:

createMBean in interface RMIConnection

Parameters:

className - The class name of the MBean to be instantiated.

name - The object name of the MBean. May be null.

params - An array containing the parameters of the constructor to be invoked, encapsulated into a MarshalledObject. The encapsulated array can be null, equivalent to an empty array.

signature - An array containing the signature of the constructor to be invoked. Can be null, equivalent to an empty array.

delegationSubject - must be null.

Returns:

An ObjectInstance, containing the ObjectName and the Java class name of the newly instantiated MBean. If the contained ObjectName is n, the contained Java class name is getMBeanInfo(n).getClassName().

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

ReflectionException - Wraps a java.lang.ClassNotFoundException or a java.lang.Exception that occurred when trying to invoke the MBean's constructor.

InstanceAlreadyExistsException - The MBean is already under the control of the MBean server.

MBeanRegistrationException - The preRegister (MBeanRegistration interface) method of the MBean has thrown an exception. The MBean will not be registered.

MBeanException - The constructor of the MBean has thrown an exception.

NotCompliantMBeanException - This class is not a JMX compliant MBean.

IOException - if a general communication exception occurred.

createMBean

public ObjectInstance createMBean(String className,
 ObjectName name,
 ObjectName loaderName,
 MarshalledObject params,
 String[] signature,
 Subject delegationSubject)
                           throws ReflectionException,
InstanceAlreadyExistsException,
MBeanRegistrationException,
MBeanException,
NotCompliantMBeanException,
InstanceNotFoundException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.createMBean(String, ObjectName, ObjectName, Object[], String[]). The Object[] parameter is wrapped in a MarshalledObject.

Specified by:

createMBean in interface RMIConnection

Parameters:

className - The class name of the MBean to be instantiated.

name - The object name of the MBean. May be null.

loaderName - The object name of the class loader to be used.

params - An array containing the parameters of the constructor to be invoked, encapsulated into a MarshalledObject. The encapsulated array can be null, equivalent to an empty array.

signature - An array containing the signature of the constructor to be invoked. Can be null, equivalent to an empty array.

delegationSubject - must be null.

Returns:

An ObjectInstance, containing the ObjectName and the Java class name of the newly instantiated MBean. If the contained ObjectName is n, the contained Java class name is getMBeanInfo(n).getClassName().

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

ReflectionException - Wraps a java.lang.ClassNotFoundException or a java.lang.Exception that occurred when trying to invoke the MBean's constructor.

InstanceAlreadyExistsException - The MBean is already under the control of the MBean server.

MBeanRegistrationException - The preRegister (MBeanRegistration interface) method of the MBean has thrown an exception. The MBean will not be registered.

MBeanException - The constructor of the MBean has thrown an exception.

NotCompliantMBeanException - This class is not a JMX compliant MBean.

InstanceNotFoundException - The specified class loader is not registered in the MBean server.

IOException - if a general communication exception occurred.

unregisterMBean

public void unregisterMBean(ObjectName name,
 Subject delegationSubject)
                     throws InstanceNotFoundException,
MBeanRegistrationException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.unregisterMBean(ObjectName).

Specified by:

unregisterMBean in interface RMIConnection

Parameters:

name - The object name of the MBean to be unregistered.

delegationSubject - must be null.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

MBeanRegistrationException - The preDeregister (MBeanRegistration interface) method of the MBean has thrown an exception.

IOException - if a general communication exception occurred.

getObjectInstance

public ObjectInstance getObjectInstance(ObjectName name,
 Subject delegationSubject)
                                 throws InstanceNotFoundException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.getObjectInstance(ObjectName).

Specified by:

getObjectInstance in interface RMIConnection

Parameters:

name - The object name of the MBean.

delegationSubject - must be null.

Returns:

The ObjectInstance associated with the MBean specified by name. The contained ObjectName is name and the contained class name is getMBeanInfo(name).getClassName().

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

IOException - if a general communication exception occurred.

queryMBeans

public Set<ObjectInstance> queryMBeans(ObjectName name,
 MarshalledObject query,
 Subject delegationSubject)
                                throws IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.queryMBeans(ObjectName, QueryExp). The QueryExp is wrapped in a MarshalledObject.

Specified by:

queryMBeans in interface RMIConnection

Parameters:

name - The object name pattern identifying the MBeans to be retrieved. If null or no domain and key properties are specified, all the MBeans registered will be retrieved.

query - The query expression to be applied for selecting MBeans, encapsulated into a MarshalledObject. If the MarshalledObject encapsulates a null value no query expression will be applied for selecting MBeans.

delegationSubject - must be null.

Returns:

A set containing the ObjectInstance objects for the selected MBeans. If no MBean satisfies the query an empty list is returned.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

IOException - if a general communication exception occurred.

queryNames

public Set<ObjectName> queryNames(ObjectName name,
 MarshalledObject query,
 Subject delegationSubject)
                           throws IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.queryNames(ObjectName, QueryExp). The QueryExp is wrapped in a MarshalledObject.

Specified by:

queryNames in interface RMIConnection

Parameters:

name - The object name pattern identifying the MBean names to be retrieved. If null or no domain and key properties are specified, the name of all registered MBeans will be retrieved.

query - The query expression to be applied for selecting MBeans, encapsulated into a MarshalledObject. If the MarshalledObject encapsulates a null value no query expression will be applied for selecting MBeans.

delegationSubject - must be null.

Returns:

A set containing the ObjectNames for the MBeans selected. If no MBean satisfies the query, an empty list is returned.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

IOException - if a general communication exception occurred.

isRegistered

public boolean isRegistered(ObjectName name,
 Subject delegationSubject)
                     throws IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.isRegistered(ObjectName).

Specified by:

isRegistered in interface RMIConnection

Parameters:

name - The object name of the MBean to be checked.

delegationSubject - must be null.

Returns:

True if the MBean is already registered in the MBean server, false otherwise.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

IOException - if a general communication exception occurred.

getMBeanCount

public Integer getMBeanCount(Subject delegationSubject)
                      throws IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.getMBeanCount().

Specified by:

getMBeanCount in interface RMIConnection

Parameters:

delegationSubject - must be null.

Returns:

the number of MBeans registered.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

IOException - if a general communication exception occurred.

getAttribute

public Object getAttribute(ObjectName name,
 String attribute,
 Subject delegationSubject)
                    throws MBeanException,
AttributeNotFoundException,
InstanceNotFoundException,
ReflectionException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.getAttribute(ObjectName, String).

Specified by:

getAttribute in interface RMIConnection

Parameters:

name - The object name of the MBean from which the attribute is to be retrieved.

attribute - A String specifying the name of the attribute to be retrieved.

delegationSubject - must be null.

Returns:

The value of the retrieved attribute.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

MBeanException - Wraps an exception thrown by the MBean's getter.

AttributeNotFoundException - The attribute specified is not accessible in the MBean.

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

ReflectionException - Wraps a java.lang.Exception thrown when trying to invoke the getter.

IOException - if a general communication exception occurred.

See Also:

• RMIConnection.setAttribute(javax.management.ObjectName, java.rmi.MarshalledObject, javax.security.auth.Subject)

getAttributes

public AttributeList getAttributes(ObjectName name,
 String[] attributes,
 Subject delegationSubject)
                            throws InstanceNotFoundException,
ReflectionException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.getAttributes(ObjectName, String[]).

Specified by:

getAttributes in interface RMIConnection

Parameters:

name - The object name of the MBean from which the attributes are retrieved.

attributes - A list of the attributes to be retrieved.

delegationSubject - must be null.

Returns:

The list of the retrieved attributes.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

ReflectionException - An exception occurred when trying to invoke the getAttributes method of a Dynamic MBean.

IOException - if a general communication exception occurred.

See Also:

• RMIConnection.setAttributes(javax.management.ObjectName, java.rmi.MarshalledObject, javax.security.auth.Subject)

setAttribute

public void setAttribute(ObjectName name,
 MarshalledObject attribute,
 Subject delegationSubject)
                  throws InstanceNotFoundException,
AttributeNotFoundException,
InvalidAttributeValueException,
MBeanException,
ReflectionException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.setAttribute(ObjectName, Attribute). The Attribute parameter is wrapped in a MarshalledObject.

Specified by:

setAttribute in interface RMIConnection

Parameters:

name - The name of the MBean within which the attribute is to be set.

attribute - The identification of the attribute to be set and the value it is to be set to, encapsulated into a MarshalledObject.

delegationSubject - must be null.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

AttributeNotFoundException - The attribute specified is not accessible in the MBean.

InvalidAttributeValueException - The value specified for the attribute is not valid.

MBeanException - Wraps an exception thrown by the MBean's setter.

ReflectionException - Wraps a java.lang.Exception thrown when trying to invoke the setter.

IOException - if a general communication exception occurred.

See Also:

• RMIConnection.getAttribute(javax.management.ObjectName, java.lang.String, javax.security.auth.Subject)

setAttributes

public AttributeList setAttributes(ObjectName name,
 MarshalledObject attributes,
 Subject delegationSubject)
                            throws InstanceNotFoundException,
ReflectionException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.setAttributes(ObjectName, AttributeList). The AttributeList parameter is wrapped in a MarshalledObject.

Specified by:

setAttributes in interface RMIConnection

Parameters:

name - The object name of the MBean within which the attributes are to be set.

attributes - A list of attributes: The identification of the attributes to be set and the values they are to be set to, encapsulated into a MarshalledObject.

delegationSubject - must be null.

Returns:

The list of attributes that were set, with their new values.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

ReflectionException - An exception occurred when trying to invoke the getAttributes method of a Dynamic MBean.

IOException - if a general communication exception occurred.

See Also:

• RMIConnection.getAttributes(javax.management.ObjectName, java.lang.String[], javax.security.auth.Subject)

invoke

public Object invoke(ObjectName name,
 String operationName,
 MarshalledObject params,
 String[] signature,
 Subject delegationSubject)
              throws InstanceNotFoundException,
MBeanException,
ReflectionException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.invoke(ObjectName, String, Object[], String[]). The Object[] parameter is wrapped in a MarshalledObject.

Specified by:

invoke in interface RMIConnection

Parameters:

name - The object name of the MBean on which the method is to be invoked.

operationName - The name of the operation to be invoked.

params - An array containing the parameters to be set when the operation is invoked, encapsulated into a MarshalledObject. The encapsulated array can be null, equivalent to an empty array.

signature - An array containing the signature of the operation. The class objects will be loaded using the same class loader as the one used for loading the MBean on which the operation was invoked. Can be null, equivalent to an empty array.

delegationSubject - must be null.

Returns:

The object returned by the operation, which represents the result of invoking the operation on the MBean specified.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

MBeanException - Wraps an exception thrown by the MBean's invoked method.

ReflectionException - Wraps a java.lang.Exception thrown while trying to invoke the method.

IOException - if a general communication exception occurred.

getDefaultDomain

public String getDefaultDomain(Subject delegationSubject)
                        throws IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.getDefaultDomain().

Specified by:

getDefaultDomain in interface RMIConnection

Parameters:

delegationSubject - must be null.

Returns:

the default domain.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

IOException - if a general communication exception occurred.

getDomains

public String[] getDomains(Subject delegationSubject)
                    throws IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.getDomains().

Specified by:

getDomains in interface RMIConnection

Parameters:

delegationSubject - must be null.

Returns:

the list of domains.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

IOException - if a general communication exception occurred.

getMBeanInfo

public MBeanInfo getMBeanInfo(ObjectName name,
 Subject delegationSubject)
                       throws InstanceNotFoundException,
IntrospectionException,
ReflectionException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.getMBeanInfo(ObjectName).

Specified by:

getMBeanInfo in interface RMIConnection

Parameters:

name - The name of the MBean to analyze

delegationSubject - must be null.

Returns:

An instance of MBeanInfo allowing the retrieval of all attributes and operations of this MBean.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

InstanceNotFoundException - The MBean specified was not found.

IntrospectionException - An exception occurred during introspection.

ReflectionException - An exception occurred when trying to invoke the getMBeanInfo of a Dynamic MBean.

IOException - if a general communication exception occurred.

isInstanceOf

public boolean isInstanceOf(ObjectName name,
 String className,
 Subject delegationSubject)
                     throws InstanceNotFoundException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.isInstanceOf(ObjectName, String).

Specified by:

isInstanceOf in interface RMIConnection

Parameters:

name - The ObjectName of the MBean.

className - The name of the class.

delegationSubject - must be null.

Returns:

true if the MBean specified is an instance of the specified class according to the rules above, false otherwise.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

InstanceNotFoundException - The MBean specified is not registered in the MBean server.

IOException - if a general communication exception occurred.

addNotificationListeners

public Integer[] addNotificationListeners(ObjectName[] names,
 MarshalledObject[] filters,
 Subject[] delegationSubjects)
                                   throws InstanceNotFoundException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.addNotificationListener(ObjectName, NotificationListener, NotificationFilter, Object).

Register for notifications from the given MBeans that match the given filters. The remote client can subsequently retrieve the notifications using the fetchNotifications method.

For each listener, the original NotificationListener and handback are kept on the client side; in order for the client to be able to identify them, the server generates and returns a unique listenerID. This listenerID is forwarded with the Notifications to the remote client.

If any one of the given (name, filter) pairs cannot be registered, then the operation fails with an exception, and no names or filters are registered.

Specified by:

addNotificationListeners in interface RMIConnection

Parameters:

names - the ObjectNames identifying the MBeans emitting the Notifications.

filters - an array of marshalled representations of the NotificationFilters. Elements of this array can be null.

delegationSubjects - must be null, or an array which does not contain any non-null entries.

Returns:

an array of listenerIDs identifying the local listeners. This array has the same number of elements as the parameters.

Throws:

UnsupportedOperationException - if delegationSubjects is non-null and contains any non-null entries.

InstanceNotFoundException - if one of the names does not correspond to any registered MBean.

IOException - if a general communication exception occurred.

addNotificationListener

public void addNotificationListener(ObjectName name,
 ObjectName listener,
 MarshalledObject filter,
 MarshalledObject handback,
 Subject delegationSubject)
                             throws InstanceNotFoundException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.addNotificationListener(ObjectName, ObjectName, NotificationFilter, Object). The NotificationFilter parameter is wrapped in a MarshalledObject. The Object (handback) parameter is also wrapped in a MarshalledObject.

Specified by:

addNotificationListener in interface RMIConnection

Parameters:

name - The name of the MBean on which the listener should be added.

listener - The object name of the listener which will handle the notifications emitted by the registered MBean.

filter - The filter object, encapsulated into a MarshalledObject. If filter encapsulated in the MarshalledObject has a null value, no filtering will be performed before handling notifications.

handback - The context to be sent to the listener when a notification is emitted, encapsulated into a MarshalledObject.

delegationSubject - must be null.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

InstanceNotFoundException - The MBean name of the notification listener or of the notification broadcaster does not match any of the registered MBeans.

IOException - if a general communication exception occurred.

See Also:

• RMIConnection.removeNotificationListener(ObjectName, ObjectName, Subject)
• RMIConnection.removeNotificationListener(ObjectName, ObjectName, MarshalledObject, MarshalledObject, Subject)

removeNotificationListeners

public void removeNotificationListeners(ObjectName name,
 Integer[] listenerIDs,
 Subject delegationSubject)
                                 throws InstanceNotFoundException,
ListenerNotFoundException,
IOException

Description copied from interface: RMIConnection

Handles the removeNotificationListener(ObjectName, NotificationListener) and removeNotificationListener(ObjectName, NotificationListener, NotificationFilter, Object) methods.

This method removes one or more NotificationListeners from a given MBean in the MBean server.

The NotificationListeners are identified by the IDs which were returned by the RMIConnection.addNotificationListeners(ObjectName[], MarshalledObject[], Subject[]) method.

Specified by:

removeNotificationListeners in interface RMIConnection

Parameters:

name - the ObjectName identifying the MBean emitting the Notifications.

listenerIDs - the list of the IDs corresponding to the listeners to remove.

delegationSubject - must be null.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

InstanceNotFoundException - if the given name does not correspond to any registered MBean.

ListenerNotFoundException - if one of the listeners was not found on the server side. This exception can happen if the MBean discarded a listener for some reason other than a call to MBeanServer.removeNotificationListener.

IOException - if a general communication exception occurred.

removeNotificationListener

public void removeNotificationListener(ObjectName name,
 ObjectName listener,
 Subject delegationSubject)
                                throws InstanceNotFoundException,
ListenerNotFoundException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.removeNotificationListener(ObjectName, ObjectName).

Specified by:

removeNotificationListener in interface RMIConnection

Parameters:

name - The name of the MBean on which the listener should be removed.

listener - The object name of the listener to be removed.

delegationSubject - must be null.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

InstanceNotFoundException - The MBean name provided does not match any of the registered MBeans.

ListenerNotFoundException - The listener is not registered in the MBean.

IOException - if a general communication exception occurred.

See Also:

• RMIConnection.addNotificationListener(javax.management.ObjectName, javax.management.ObjectName, java.rmi.MarshalledObject, java.rmi.MarshalledObject, javax.security.auth.Subject)

removeNotificationListener

public void removeNotificationListener(ObjectName name,
 ObjectName listener,
 MarshalledObject filter,
 MarshalledObject handback,
 Subject delegationSubject)
                                throws InstanceNotFoundException,
ListenerNotFoundException,
IOException

Description copied from interface: RMIConnection

Handles the method MBeanServerConnection.removeNotificationListener(ObjectName, ObjectName, NotificationFilter, Object). The NotificationFilter parameter is wrapped in a MarshalledObject. The Object parameter is also wrapped in a MarshalledObject.

Specified by:

removeNotificationListener in interface RMIConnection

Parameters:

name - The name of the MBean on which the listener should be removed.

listener - A listener that was previously added to this MBean.

filter - The filter that was specified when the listener was added, encapsulated into a MarshalledObject.

handback - The handback that was specified when the listener was added, encapsulated into a MarshalledObject.

delegationSubject - must be null.

Throws:

UnsupportedOperationException - if delegationSubject is non-null.

InstanceNotFoundException - The MBean name provided does not match any of the registered MBeans.

ListenerNotFoundException - The listener is not registered in the MBean, or it is not registered with the given filter and handback.

IOException - if a general communication exception occurred.

See Also:

• RMIConnection.addNotificationListener(javax.management.ObjectName, javax.management.ObjectName, java.rmi.MarshalledObject, java.rmi.MarshalledObject, javax.security.auth.Subject)

fetchNotifications

public NotificationResult fetchNotifications(long clientSequenceNumber,
 int maxNotifications,
 long timeout)
                                      throws IOException

Description copied from interface: RMIConnection

Retrieves notifications from the connector server. This method can block until there is at least one notification or until the specified timeout is reached. The method can also return at any time with zero notifications.

A notification can be included in the result if its sequence number is no less than clientSequenceNumber and this client has registered at least one listener for the MBean generating the notification, with a filter that accepts the notification. Each listener that is interested in the notification is identified by an Integer ID that was returned by RMIConnection.addNotificationListeners(ObjectName[], MarshalledObject[], Subject[]).

Specified by:

fetchNotifications in interface RMIConnection

Parameters:

clientSequenceNumber - the first sequence number that the client is interested in. If negative, it is interpreted as meaning the sequence number that the next notification will have.

maxNotifications - the maximum number of different notifications to return. The TargetedNotification array in the returned NotificationResult can have more elements than this if the same notification appears more than once. The behavior is unspecified if this parameter is negative.

timeout - the maximum time in milliseconds to wait for a notification to arrive. This can be 0 to indicate that the method should not wait if there are no notifications, but should return at once. It can be Long.MAX_VALUE to indicate that there is no timeout. The behavior is unspecified if this parameter is negative.

Returns:

A NotificationResult.

Throws:

IOException - if a general communication exception occurred.

toString

public String toString()

Returns a string representation of this object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read.

Overrides:

toString in class Object

Returns:

a String representation of this object.