org.jboss.on.common.jbossas

Class JmxConnectionHelper

java.lang.Object

org.jboss.on.common.jbossas.JmxConnectionHelper

public class JmxConnectionHelper
extends Object

Shared helper class to connect to a remote JMX server.

Author:

Heiko W. Rupp

Field Summary

Fields

Modifier and Type	Field and Description
static String	CONNECTOR_ADDRESS
static String	CONNECTOR_CREDENTIALS
static String	CONNECTOR_DESCRIPTOR_TYPE
static String	CONNECTOR_PRINCIPAL
static String	JBOSS_HOME_DIR

Constructor Summary

Constructors

Constructor and Description
JmxConnectionHelper(boolean copyConnectionLibraries, File tmpDir) Constructs a new connection helper.

Method Summary

Methods

Modifier and Type	Method and Description
void	closeConnection() If necessary attempt to close the EMS connection, then set this.connection null.
org.mc4j.ems.connection.EmsConnection	getEmsConnection() Obtain an EmsConnection.
org.mc4j.ems.connection.EmsConnection	getEmsConnection(org.rhq.core.domain.configuration.Configuration config) Obtain an EmsConnection for the passed connection properties.

Methods inherited from class java.lang.Object

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

Field Detail

CONNECTOR_DESCRIPTOR_TYPE

public static final String CONNECTOR_DESCRIPTOR_TYPE

See Also:

Constant Field Values

CONNECTOR_ADDRESS

public static final String CONNECTOR_ADDRESS

See Also:

Constant Field Values

CONNECTOR_PRINCIPAL

public static final String CONNECTOR_PRINCIPAL

See Also:

Constant Field Values

CONNECTOR_CREDENTIALS

public static final String CONNECTOR_CREDENTIALS

See Also:

Constant Field Values

JBOSS_HOME_DIR

public static final String JBOSS_HOME_DIR

See Also:

Constant Field Values

Constructor Detail

JmxConnectionHelper

public JmxConnectionHelper(boolean copyConnectionLibraries,
                   File tmpDir)

Constructs a new connection helper.

Parameters:

copyConnectionLibraries - whether to copy the libraries need for the connection so that the ems classloader doesn't block the application access to them.

tmpDir - the temporary directory to use when copying the libraries

Method Detail

getEmsConnection

public org.mc4j.ems.connection.EmsConnection getEmsConnection(org.rhq.core.domain.configuration.Configuration config)

Obtain an EmsConnection for the passed connection properties. The properties will be retained. To create a connection with different properties, use this method again with a different set of properties.

Parameters:

config - Configuration properties for this connection

Returns:

an EmsConnection or null in case of failure

See Also:

getEmsConnection()

getEmsConnection

public org.mc4j.ems.connection.EmsConnection getEmsConnection()

Obtain an EmsConnection. This will only work if the connection properties have passed before via a call to getEmsConnection(Configuration)

Returns:

an EmsConnection or null in case of failure

See Also:

getEmsConnection(org.rhq.core.domain.configuration.Configuration)

closeConnection

public void closeConnection()

If necessary attempt to close the EMS connection, then set this.connection null. Synchronized ensure we play well with loadConnection.