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MBeanServer server = MBeanServerFactory.createMBeanServer();
Based on 94 examples
public interface MBeanServer extends MBeanServerConnection
This is the interface for MBean manipulation on the agent side. It contains the methods necessary for the creation, registration, and deletion of MBeans as well as the access methods for registered MBeans. This is the core component of the JMX infrastructure.
User code does not usually implement this interface. Instead, an object that implements this interface is obtained with one of the methods in the {@link MBeanServerFactory} class.
Every MBean which is added to the MBean server becomes manageable: its attributes and operations become remotely accessible through the connectors/adaptors connected to that MBean server. A Java object cannot be registered in the MBean server unless it is a JMX compliant MBean.
When an MBean is registered or unregistered in the MBean server
a {@link javax.management.MBeanServerNotification
MBeanServerNotification} Notification is emitted. To register an
object as listener to MBeanServerNotifications you should call the
MBean server method {@link #addNotificationListener
addNotificationListener} with ObjectName
the
ObjectName
of the {@link
javax.management.MBeanServerDelegate MBeanServerDelegate}. This
ObjectName
is:
JMImplementation:type=MBeanServerDelegate
.
An object obtained from the {@link MBeanServerFactory#createMBeanServer(String) createMBeanServer} or {@link MBeanServerFactory#newMBeanServer(String) newMBeanServer} methods of the {@link MBeanServerFactory} class applies security checks to its methods, as follows.
First, if there is no security manager ({@link System#getSecurityManager()} is null), then an implementation of this interface is free not to make any checks.
Assuming that there is a security manager, or that the
implementation chooses to make checks anyway, the checks are made
as detailed below. In what follows, className
is the
string returned by {@link MBeanInfo#getClassName()} for the target
MBean.
If a security check fails, the method throws {@link SecurityException}.
For methods that can throw {@link InstanceNotFoundException},
this exception is thrown for a non-existent MBean, regardless of
permissions. This is because a non-existent MBean has no
className
.
For the {@link #invoke invoke} method, the caller's permissions must imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(className, operationName, name, "invoke")}.
For the {@link #getAttribute getAttribute} method, the caller's permissions must imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(className, attribute, name, "getAttribute")}.
For the {@link #getAttributes getAttributes} method, the caller's permissions must imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(className, null, name, "getAttribute")}. Additionally, for each attribute a in the {@link AttributeList}, if the caller's permissions do not imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(className, a, name, "getAttribute")}, the MBean server will behave as if that attribute had not been in the supplied list.
For the {@link #setAttribute setAttribute} method, the
caller's permissions must imply {@link
MBeanPermission#MBeanPermission(String,String,ObjectName,String)
MBeanPermission(className, attrName, name, "setAttribute")}, where
attrName
is {@link Attribute#getName()
attribute.getName()}.
For the {@link #setAttributes setAttributes} method, the caller's permissions must imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(className, null, name, "setAttribute")}. Additionally, for each attribute a in the {@link AttributeList}, if the caller's permissions do not imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(className, a, name, "setAttribute")}, the MBean server will behave as if that attribute had not been in the supplied list.
For the addNotificationListener
methods,
the caller's permissions must imply {@link
MBeanPermission#MBeanPermission(String,String,ObjectName,String)
MBeanPermission(className, null, name,
"addNotificationListener")}.
For the removeNotificationListener
methods,
the caller's permissions must imply {@link
MBeanPermission#MBeanPermission(String,String,ObjectName,String)
MBeanPermission(className, null, name,
"removeNotificationListener")}.
For the {@link #getMBeanInfo getMBeanInfo} method, the caller's permissions must imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(className, null, name, "getMBeanInfo")}.
For the {@link #getObjectInstance getObjectInstance} method, the caller's permissions must imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(className, null, name, "getObjectInstance")}.
For the {@link #isInstanceOf isInstanceOf} method, the caller's permissions must imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(className, null, name, "isInstanceOf")}.
For the {@link #queryMBeans queryMBeans} method, the
caller's permissions must imply {@link
MBeanPermission#MBeanPermission(String,String,ObjectName,String)
MBeanPermission(null, null, name, "queryMBeans")}.
Additionally, for each MBean that matches name
,
if the caller's permissions do not imply {@link
MBeanPermission#MBeanPermission(String,String,ObjectName,String)
MBeanPermission(className, null, name, "queryMBeans")}, the
MBean server will behave as if that MBean did not exist.
Certain query elements perform operations on the MBean server. If the caller does not have the required permissions for a given MBean, that MBean will not be included in the result of the query. The standard query elements that are affected are {@link Query#attr(String)}, {@link Query#attr(String,String)}, and {@link Query#classattr()}.
For the {@link #queryNames queryNames} method, the checks
are the same as for queryMBeans
except that
"queryNames"
is used instead of
"queryMBeans"
in the MBeanPermission
objects. Note that a "queryMBeans"
permission implies
the corresponding "queryNames"
permission.
For the {@link #getDomains getDomains} method, the caller's
permissions must imply {@link
MBeanPermission#MBeanPermission(String,String,ObjectName,String)
MBeanPermission(null, null, name, "getDomains")}. Additionally,
for each domain d in the returned array, if the caller's
permissions do not imply {@link
MBeanPermission#MBeanPermission(String,String,ObjectName,String)
MBeanPermission(null, null, new ObjectName("d:x=x"),
"getDomains")}, the domain is eliminated from the array. Here,
x=x
is any key=value pair, needed to
satisfy ObjectName's constructor but not otherwise relevant.
For the {@link #getClassLoader getClassLoader} method, the caller's permissions must imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(className, null, loaderName, "getClassLoader")}.
For the {@link #getClassLoaderFor getClassLoaderFor} method, the caller's permissions must imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(className, null, mbeanName, "getClassLoaderFor")}.
For the {@link #getClassLoaderRepository getClassLoaderRepository} method, the caller's permissions must imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(null, null, null, "getClassLoaderRepository")}.
For the deprecated deserialize
methods, the
required permissions are the same as for the methods that replace
them.
For the instantiate
methods, the caller's
permissions must imply {@link
MBeanPermission#MBeanPermission(String,String,ObjectName,String)
MBeanPermission(className, null, null, "instantiate")}.
For the {@link #registerMBean registerMBean} method, the
caller's permissions must imply {@link
MBeanPermission#MBeanPermission(String,String,ObjectName,String)
MBeanPermission(className, null, name, "registerMBean")}. Here
className
is the string returned by {@link
MBeanInfo#getClassName()} for an object of this class.
If the MBeanPermission
check succeeds, the MBean's
class is validated by checking that its {@link
java.security.ProtectionDomain ProtectionDomain} implies {@link
MBeanTrustPermission#MBeanTrustPermission(String)
MBeanTrustPermission("register")}.
Finally, if the name
argument is null, another
MBeanPermission
check is made using the
ObjectName
returned by {@link
MBeanRegistration#preRegister MBeanRegistration.preRegister}.
For the createMBean
methods, the caller's
permissions must imply the permissions needed by the equivalent
instantiate
followed by
registerMBean
.
For the {@link #unregisterMBean unregisterMBean} method, the caller's permissions must imply {@link MBeanPermission#MBeanPermission(String,String,ObjectName,String) MBeanPermission(className, null, name, "unregisterMBean")}.
Method Summary | |
---|---|
void |
addNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback) |
void |
addNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, Object handback) |
ObjectInstance |
createMBean(String className, ObjectName name) |
ObjectInstance |
createMBean(String className, ObjectName name, ObjectName loaderName) |
ObjectInstance |
createMBean(String className, ObjectName name, ObjectName loaderName, Object[] params, String[] signature) |
ObjectInstance |
createMBean(String className, ObjectName name, Object[] params, String[] signature) |
ObjectInputStream |
deserialize(ObjectName name, byte[] data) De-serializes a byte array in the context of the class loader of an MBean. |
ObjectInputStream |
deserialize(String className, byte[] data) De-serializes a byte array in the context of a given MBean class loader. |
ObjectInputStream |
deserialize(String className, ObjectName loaderName, byte[] data) De-serializes a byte array in the context of a given MBean class loader. |
Object |
getAttribute(ObjectName name, String attribute) |
AttributeList |
getAttributes(ObjectName name, String[] attributes) |
ClassLoader |
getClassLoader(ObjectName loaderName) Return the named java.lang.ClassLoader. |
ClassLoader |
getClassLoaderFor(ObjectName mbeanName) Return the java.lang.ClassLoader that was used for loading the class of the named MBean. |
ClassLoaderRepository |
Return the ClassLoaderRepository for this MBeanServer. |
String |
|
String[] |
|
Integer |
Returns the number of MBeans registered in the MBean server. |
MBeanInfo |
getMBeanInfo(ObjectName name) |
ObjectInstance |
getObjectInstance(ObjectName name) |
Object |
instantiate(String className) Instantiates an object using the list of all class loaders registered in the MBean server's javax.management.loading.ClassLoaderRepository. |
Object |
instantiate(String className, ObjectName loaderName) Instantiates an object using the class Loader specified by its ObjectName .
|
Object |
instantiate(String className, ObjectName loaderName, Object[] params, String[] signature) Instantiates an object. |
Object |
instantiate(String className, Object[] params, String[] signature) Instantiates an object using the list of all class loaders registered in the MBean server javax.management.loading.ClassLoaderRepository. |
Object |
invoke(ObjectName name, String operationName, Object[] params, String[] signature) |
boolean |
isInstanceOf(ObjectName name, String className) |
boolean |
isRegistered(ObjectName name) |
Set |
queryMBeans(ObjectName name, QueryExp query) |
Set |
queryNames(ObjectName name, QueryExp query) |
ObjectInstance |
registerMBean(Object object, ObjectName name) Registers a pre-existing object as an MBean with the MBean server. |
void |
removeNotificationListener(ObjectName name, NotificationListener listener) |
void |
removeNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback) |
void |
removeNotificationListener(ObjectName name, ObjectName listener) |
void |
removeNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, Object handback) |
void |
setAttribute(ObjectName name, Attribute attribute) |
AttributeList |
setAttributes(ObjectName name, AttributeList attributes) |
void |
unregisterMBean(ObjectName name) |
Method Detail |
---|
public void addNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback) throws InstanceNotFoundException
name
listener
filter
handback
InstanceNotFoundException
public void addNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, Object handback) throws InstanceNotFoundException
name
listener
filter
handback
InstanceNotFoundException
public ObjectInstance createMBean(String className, ObjectName name) throws ReflectionException, InstanceAlreadyExistsException, MBeanRegistrationException, MBeanException, NotCompliantMBeanException
className
name
ReflectionException
InstanceAlreadyExistsException
MBeanRegistrationException
MBeanException
NotCompliantMBeanException
public ObjectInstance createMBean(String className, ObjectName name, ObjectName loaderName) throws ReflectionException, InstanceAlreadyExistsException, MBeanRegistrationException, MBeanException, NotCompliantMBeanException, InstanceNotFoundException
className
name
loaderName
ReflectionException
InstanceAlreadyExistsException
MBeanRegistrationException
MBeanException
NotCompliantMBeanException
InstanceNotFoundException
public ObjectInstance createMBean(String className, ObjectName name, ObjectName loaderName, Object[] params, String[] signature) throws ReflectionException, InstanceAlreadyExistsException, MBeanRegistrationException, MBeanException, NotCompliantMBeanException, InstanceNotFoundException
className
name
loaderName
params
signature
ReflectionException
InstanceAlreadyExistsException
MBeanRegistrationException
MBeanException
NotCompliantMBeanException
InstanceNotFoundException
public ObjectInstance createMBean(String className, ObjectName name, Object[] params, String[] signature) throws ReflectionException, InstanceAlreadyExistsException, MBeanRegistrationException, MBeanException, NotCompliantMBeanException
className
name
params
signature
ReflectionException
InstanceAlreadyExistsException
MBeanRegistrationException
MBeanException
NotCompliantMBeanException
public ObjectInputStream deserialize(ObjectName name, byte[] data) throws InstanceNotFoundException, OperationsException
De-serializes a byte array in the context of the class loader of an MBean.
name
- The name of the MBean whose class loader should be
used for the de-serialization.data
- The byte array to be de-sererialized.InstanceNotFoundException
- The MBean specified is not
found.OperationsException
- Any of the usual Input/Output
related exceptions.public ObjectInputStream deserialize(String className, byte[] data) throws OperationsException, ReflectionException
De-serializes a byte array in the context of a given MBean
class loader. The class loader is found by loading the class
className
through the {@link
javax.management.loading.ClassLoaderRepository Class Loader
Repository}. The resultant class's class loader is the one to
use.
className
- The name of the class whose class loader should be
used for the de-serialization.data
- The byte array to be de-sererialized.OperationsException
- Any of the usual Input/Output
related exceptions.ReflectionException
- The specified class could not be
loaded by the class loader repositorypublic ObjectInputStream deserialize(String className, ObjectName loaderName, byte[] data) throws InstanceNotFoundException, OperationsException, ReflectionException
De-serializes a byte array in the context of a given MBean class loader. The class loader is the one that loaded the class with name "className". The name of the class loader to be used for loading the specified class is specified. If null, the MBean Server's class loader will be used.
className
- The name of the class whose class loader should be
used for the de-serialization.loaderName
- The name of the class loader to be used for
loading the specified class. If null, the MBean Server's class
loader will be used.data
- The byte array to be de-sererialized.InstanceNotFoundException
- The specified class loader
MBean is not found.OperationsException
- Any of the usual Input/Output
related exceptions.ReflectionException
- The specified class could not be
loaded by the specified class loader.public Object getAttribute(ObjectName name, String attribute) throws MBeanException, AttributeNotFoundException, InstanceNotFoundException, ReflectionException
name
attribute
MBeanException
AttributeNotFoundException
InstanceNotFoundException
ReflectionException
public AttributeList getAttributes(ObjectName name, String[] attributes) throws InstanceNotFoundException, ReflectionException
name
attributes
InstanceNotFoundException
ReflectionException
public ClassLoader getClassLoader(ObjectName loaderName) throws InstanceNotFoundException
Return the named {@link java.lang.ClassLoader}.
loaderName
- The ObjectName of the ClassLoader. May be
null, in which case the MBean server's own ClassLoader is
returned.InstanceNotFoundException
- if the named ClassLoader is
not found.public ClassLoader getClassLoaderFor(ObjectName mbeanName) throws InstanceNotFoundException
Return the {@link java.lang.ClassLoader} that was used for loading the class of the named MBean.
mbeanName
- The ObjectName of the MBean.InstanceNotFoundException
- if the named MBean is not found.public ClassLoaderRepository getClassLoaderRepository()
Return the ClassLoaderRepository for this MBeanServer.
public String getDefaultDomain()
public String[] getDomains()
public Integer getMBeanCount()
public MBeanInfo getMBeanInfo(ObjectName name) throws InstanceNotFoundException, IntrospectionException, ReflectionException
name
InstanceNotFoundException
IntrospectionException
ReflectionException
public ObjectInstance getObjectInstance(ObjectName name) throws InstanceNotFoundException
name
InstanceNotFoundException
public Object instantiate(String className) throws ReflectionException, MBeanException
Instantiates an object using the list of all class loaders registered in the MBean server's {@link javax.management.loading.ClassLoaderRepository Class Loader Repository}. The object's class should have a public constructor. This method returns a reference to the newly created object. The newly created object is not registered in the MBean server.
This method is equivalent to {@link #instantiate(String,Object[],String[]) instantiate(className, (Object[]) null, (String[]) null)}.
className
- The class name of the object to be instantiated.ReflectionException
- Wraps a
java.lang.ClassNotFoundException
or the
java.lang.Exception
that occurred when trying to
invoke the object's constructor.MBeanException
- The constructor of the object has
thrown an exceptionpublic Object instantiate(String className, ObjectName loaderName) throws ReflectionException, MBeanException, InstanceNotFoundException
Instantiates an object using the class Loader specified by its
ObjectName
. If the loader name is null, the
ClassLoader that loaded the MBean Server will be used. The
object's class should have a public constructor. This method
returns a reference to the newly created object. The newly
created object is not registered in the MBean server.
This method is equivalent to {@link #instantiate(String,ObjectName,Object[],String[]) instantiate(className, loaderName, (Object[]) null, (String[]) null)}.
className
- The class name of the MBean to be instantiated.loaderName
- The object name of the class loader to be used.ReflectionException
- Wraps a
java.lang.ClassNotFoundException
or the
java.lang.Exception
that occurred when trying to
invoke the object's constructor.MBeanException
- The constructor of the object has
thrown an exception.InstanceNotFoundException
- The specified class loader
is not registered in the MBeanServer.public Object instantiate(String className, ObjectName loaderName, Object[] params, String[] signature) throws ReflectionException, MBeanException, InstanceNotFoundException
Instantiates an object. The class loader to be used is identified by its object name. If the object name of the loader is null, the ClassLoader that loaded the MBean server will be used. The object's class should have a public constructor. The call returns a reference to the newly created object. The newly created object is not registered in the MBean server.
className
- The class name of the object to be instantiated.loaderName
- The object name of the class loader to be used.params
- An array containing the parameters of the
constructor to be invoked.signature
- An array containing the signature of the
constructor to be invoked.ReflectionException
- Wraps a java.lang.ClassNotFoundException
or the java.lang.Exception
that
occurred when trying to invoke the object's constructor.MBeanException
- The constructor of the object has
thrown an exceptionInstanceNotFoundException
- The specified class loader
is not registered in the MBean server.public Object instantiate(String className, Object[] params, String[] signature) throws ReflectionException, MBeanException
Instantiates an object using the list of all class loaders registered in the MBean server {@link javax.management.loading.ClassLoaderRepository Class Loader Repository}. The object's class should have a public constructor. The call returns a reference to the newly created object. The newly created object is not registered in the MBean server.
className
- The class name of the object to be instantiated.params
- An array containing the parameters of the
constructor to be invoked.signature
- An array containing the signature of the
constructor to be invoked.ReflectionException
- Wraps a
java.lang.ClassNotFoundException
or the
java.lang.Exception
that occurred when trying to
invoke the object's constructor.MBeanException
- The constructor of the object has
thrown an exceptionpublic Object invoke(ObjectName name, String operationName, Object[] params, String[] signature) throws InstanceNotFoundException, MBeanException, ReflectionException
name
operationName
params
signature
InstanceNotFoundException
MBeanException
ReflectionException
public boolean isInstanceOf(ObjectName name, String className) throws InstanceNotFoundException
name
className
InstanceNotFoundException
public boolean isRegistered(ObjectName name)
name
public Set queryMBeans(ObjectName name, QueryExp query)
name
query
public Set queryNames(ObjectName name, QueryExp query)
name
query
public ObjectInstance registerMBean(Object object, ObjectName name) throws InstanceAlreadyExistsException, MBeanRegistrationException, NotCompliantMBeanException
object
- The MBean to be registered as an MBean.name
- The object name of the MBean. May be null.ObjectInstance
, containing the
ObjectName
and the Java class name of the newly
registered MBean. If the contained ObjectName
is n
, the contained Java class name is
{@link #getMBeanInfo getMBeanInfo(n)}.getClassName()
.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.NotCompliantMBeanException
- This object is not a JMX
compliant MBeanpublic void removeNotificationListener(ObjectName name, NotificationListener listener) throws InstanceNotFoundException, ListenerNotFoundException
name
listener
InstanceNotFoundException
ListenerNotFoundException
public void removeNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback) throws InstanceNotFoundException, ListenerNotFoundException
name
listener
filter
handback
InstanceNotFoundException
ListenerNotFoundException
public void removeNotificationListener(ObjectName name, ObjectName listener) throws InstanceNotFoundException, ListenerNotFoundException
name
listener
InstanceNotFoundException
ListenerNotFoundException
public void removeNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, Object handback) throws InstanceNotFoundException, ListenerNotFoundException
name
listener
filter
handback
InstanceNotFoundException
ListenerNotFoundException
public void setAttribute(ObjectName name, Attribute attribute) throws InstanceNotFoundException, AttributeNotFoundException, InvalidAttributeValueException, MBeanException, ReflectionException
name
attribute
InstanceNotFoundException
AttributeNotFoundException
InvalidAttributeValueException
MBeanException
ReflectionException
public AttributeList setAttributes(ObjectName name, AttributeList attributes) throws InstanceNotFoundException, ReflectionException
name
attributes
InstanceNotFoundException
ReflectionException
public void unregisterMBean(ObjectName name) throws InstanceNotFoundException, MBeanRegistrationException
name
InstanceNotFoundException
MBeanRegistrationException
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