Package dk.netarkivet.monitor.jmx

Class HostForwarding<T>

java.lang.Object

dk.netarkivet.monitor.jmx.HostForwarding<T>

Type Parameters:

T - The type of object exposed through the MBeans.

public class HostForwarding<T>
extends Object

Handles the forwarding of other hosts' MBeans matching a specific regular query and interface to a given mbean server. The interface should be of type T.

Field Summary

Fields

Modifier and Type	Field	Description
static org.slf4j.Logger	log	The log.

Method Summary

Modifier and Type	Method	Description
static Map<String,Set<HostEntry>>	getCurrentHostEntries()	Get current list of host-JMX port mappings.
static <T> HostForwarding	getInstance(Class<T> asInterface, MBeanServer mBeanServer, String query)	Get a host forwarding instance.
MBeanServer	getMBeanServer()	Get the mbean server that proxies to remote mbeans are registered in.

Methods inherited from class java.lang.Object

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

Field Detail

log

public static final org.slf4j.Logger log

The log.

Method Detail

getInstance

public static <T> HostForwarding getInstance(Class<T> asInterface,
                                             MBeanServer mBeanServer,
                                             String query)

Get a host forwarding instance. As a side effect of this, all mbeans matching a query from remote hosts, are proxied and registered in the given mbean server. Only one HostForwarding instance will be made for each query string. Any subsequent call with the same query string will simply return the previously initiated instance.

Type Parameters:

T - The type of HostForwarding to return.

Parameters:

asInterface - The interface remote mbeans should implement.

mBeanServer - The MBean server to register proxy mbeans in.

query - The query for which we should proxy matching mbeans on remote servers.

Returns:

This host forwarding instance.

getCurrentHostEntries

public static Map<String,Set<HostEntry>> getCurrentHostEntries()

Get current list of host-JMX port mappings. This lists the mappings from the registry server.

Returns:

current list of host-JMX port mappings.

getMBeanServer

public MBeanServer getMBeanServer()

Get the mbean server that proxies to remote mbeans are registered in.

Returns:

The mbean server with proxy mbeans.