org.hawkular.agent.monitor.protocol.dmr

Class DMRDriver

java.lang.Object

org.hawkular.agent.monitor.protocol.dmr.DMRDriver

All Implemented Interfaces:

Driver<DMRNodeLocation>

public class DMRDriver
extends Object
implements Driver<DMRNodeLocation>

Author:

Peter Palaga

See Also:

Driver

Constructor Summary

Constructors

Constructor and Description
DMRDriver(org.jboss.as.controller.client.ModelControllerClient client, MonitoredEndpoint endpoint, ProtocolDiagnostics diagnostics)

Method Summary

Modifier and Type	Method and Description
boolean	attributeExists(AttributeLocation<DMRNodeLocation> location) Returns true if the given attributeLocation exists on a MonitoredEndpoint or false otherwise.
Object	fetchAttribute(AttributeLocation<DMRNodeLocation> location) Fetches the attribute value specified by the given attributeLocation from a MonitoredEndpoint and returns it.
Map<DMRNodeLocation,org.jboss.dmr.ModelNode>	fetchNodes(DMRNodeLocation query) Fetches nodes that match the given query from a MonitoredEndpoint and returns them as an immutable Map.
org.jboss.as.controller.client.ModelControllerClient	getClient()
protected Object	postProcessAttribute(String attribute, Object oldValue)

Methods inherited from class java.lang.Object

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

Constructor Detail

DMRDriver

public DMRDriver(org.jboss.as.controller.client.ModelControllerClient client,
                 MonitoredEndpoint endpoint,
                 ProtocolDiagnostics diagnostics)

Method Detail

attributeExists

public boolean attributeExists(AttributeLocation<DMRNodeLocation> location)

Description copied from interface: Driver

Returns true if the given attributeLocation exists on a MonitoredEndpoint or false otherwise. This method should return true for attributes that exist but are unset.

Specified by:

attributeExists in interface Driver<DMRNodeLocation>

Parameters:

location - the AttributeLocation to check

Returns:

true or false

fetchAttribute

public Object fetchAttribute(AttributeLocation<DMRNodeLocation> location)
                      throws ProtocolException

Description copied from interface: Driver

Fetches the attribute value specified by the given attributeLocation from a MonitoredEndpoint and returns it. If AttributeLocation.getLocation() is a path pattern containing wildcards, then this method MAY return a List of objects that contains the attribute values of matching attributes.

Specified by:

fetchAttribute in interface Driver<DMRNodeLocation>

Parameters:

location - the attribute to retrieve

Returns:

the attribute value or null if there is no such attribute or if the attribute is unset.

Throws:

ProtocolException - on any problems related to the retrieval

fetchNodes

public Map<DMRNodeLocation,org.jboss.dmr.ModelNode> fetchNodes(DMRNodeLocation query)
                                                        throws ProtocolException

Description copied from interface: Driver

Fetches nodes that match the given query from a MonitoredEndpoint and returns them as an immutable Map. In a given entry in the returned map, the key is the location of the protocol specific node object that is stored in the value of the entry.

Specified by:

fetchNodes in interface Driver<DMRNodeLocation>

Parameters:

query - a pattern location to query for native resource nodes

Returns:

an immutable Map from locations to native resource nodes

Throws:

ProtocolException - on any problems related to the retrieval

getClient

public org.jboss.as.controller.client.ModelControllerClient getClient()

postProcessAttribute

protected Object postProcessAttribute(String attribute,
                                      Object oldValue)