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Java Source Code / Java Documentation » J2EE » spring framework 2.0.6 » org.springframework.jmx.access

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.springframework.jmx.access .MBeanClientInterceptor

All known Subclasses:   org.springframework.jmx.access .MBeanProxyFactoryBean,
MBeanClientInterceptor
public class MBeanClientInterceptor implements MethodInterceptor,InitializingBean,DisposableBean(Code)
MethodInterceptor implementation that routes calls to an MBean running on the supplied MBeanServerConnection. Works for both local and remote MBeanServerConnections.
By default, the MBeanClientInterceptor will connect to the MBeanServer and cache MBean metadata at startup. This can be undesirable when running against a remote MBeanServer that may not be running when the application starts. Through setting the MBeanClientInterceptor.setConnectOnStartup(boolean) connectOnStartup property to "false", you can defer this process until the first invocation against the proxy.
Requires JMX 1.2's MBeanServerConnection feature. As a consequence, this class will not work on JMX 1.0.
This functionality is usually used through MBeanProxyFactoryBean. See the javadoc of that class for more information.
author:
   Rob Harrop
author:
   Juergen Hoeller
since:
   1.2
See Also:   MBeanProxyFactoryBean
See Also:   MBeanClientInterceptor.setConnectOnStartup

Field Summary
final protected Log logger


Method Summary
public void afterPropertiesSet()
     Ensures that an MBeanServerConnection is configured and attempts to detect a local connection if one is not supplied.
public void destroy()
     Closes any JMXConnector that may be managed by this interceptor.
public Object invoke(MethodInvocation invocation)
     Route the invocation to the configured managed resource.
protected MBeanServer locateMBeanServer(String agentId)
     Attempt to locate an existing MBeanServer. Called if no MBeanClientInterceptor.setServiceUrl "serviceUrl" was specified.
The default implementation attempts to find an MBeanServer using a standard lookup.
public void setAgentId(String agentId)
     Set the agent id of the MBeanServer to locate.
Default is none.
public void setConnectOnStartup(boolean connectOnStartup)
     Set whether or not the proxy should connect to the MBeanServer at creation time ("true") or the first time it is invoked ("false").
public void setObjectName(Object objectName)
     Set the ObjectName of the MBean which calls are routed to, as ObjectName instance or as String.
public void setServer(MBeanServerConnection server)
     Set the MBeanServerConnection used to connect to the MBean which all invocations are routed to.
public void setServiceUrl(String url)
     Set the service URL of the remote MBeanServer.
public void setUseStrictCasing(boolean useStrictCasing)
     Set whether to use strict casing for attributes.

Field Detail
logger
final protected Log logger(Code)
Logger available to subclasses

Method Detail
afterPropertiesSet
public void afterPropertiesSet() throws MBeanServerNotFoundException, MBeanInfoRetrievalException(Code)
Ensures that an MBeanServerConnection is configured and attempts to detect a local connection if one is not supplied.

destroy
public void destroy() throws Exception(Code)
Closes any JMXConnector that may be managed by this interceptor.

invoke
public Object invoke(MethodInvocation invocation) throws Throwable(Code)
Route the invocation to the configured managed resource. Correctly routes JavaBean property access to MBeanServerConnection.get/setAttribute and method invocation to MBeanServerConnection.invoke. Any attempt to invoke a method that does not correspond to an attribute or operation defined in the management interface of the managed resource results in an InvalidInvocationException.
Parameters:
  invocation - the MethodInvocation to re-route. the value returned as a result of the re-routed invocation.
throws:
  InvocationFailureException - if the invocation does not match an attribute oroperation on the management interface of the resource.
throws:
  Throwable - typically as the result of an error during invocation

locateMBeanServer
protected MBeanServer locateMBeanServer(String agentId) throws MBeanServerNotFoundException(Code)
Attempt to locate an existing MBeanServer. Called if no MBeanClientInterceptor.setServiceUrl "serviceUrl" was specified.
The default implementation attempts to find an MBeanServer using a standard lookup. Subclasses may override to add additional location logic.
Parameters:
  agentId - the agent identifier of the MBeanServer to retrieve.If this parameter is null, all registered MBeanServers areconsidered. the MBeanServer if found
throws:
  org.springframework.jmx.MBeanServerNotFoundException - if no MBeanServer could be found
See Also:   JmxUtils.locateMBeanServer(String)
See Also:   javax.management.MBeanServerFactory.findMBeanServer(String)

setAgentId
public void setAgentId(String agentId)(Code)
Set the agent id of the MBeanServer to locate.
Default is none. If specified, this will result in an attempt being made to locate the attendant MBeanServer, unless the MBeanClientInterceptor.setServiceUrl "serviceUrl" property has been set.
See Also:   javax.management.MBeanServerFactory.findMBeanServer(String)

setConnectOnStartup
public void setConnectOnStartup(boolean connectOnStartup)(Code)
Set whether or not the proxy should connect to the MBeanServer at creation time ("true") or the first time it is invoked ("false"). Default is "true".

setObjectName
public void setObjectName(Object objectName) throws MalformedObjectNameException(Code)
Set the ObjectName of the MBean which calls are routed to, as ObjectName instance or as String.

setServer
public void setServer(MBeanServerConnection server)(Code)
Set the MBeanServerConnection used to connect to the MBean which all invocations are routed to.

setServiceUrl
public void setServiceUrl(String url) throws MalformedURLException(Code)
Set the service URL of the remote MBeanServer.

setUseStrictCasing
public void setUseStrictCasing(boolean useStrictCasing)(Code)
Set whether to use strict casing for attributes. Enabled by default.
When using strict casing, a JavaBean property with a getter such as getFoo() translates to an attribute called Foo. With strict casing disabled, getFoo() would translate to just foo.

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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