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

static String	CONNECTOR_ADDRESS
static String	CONNECTOR_CREDENTIALS
static String	CONNECTOR_DESCRIPTOR_TYPE
static String	CONNECTOR_PRINCIPAL
static String	JBOSS_HOME_DIR

Constructor Summary

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

Method Summary

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

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Constant Field Values

CONNECTOR_PRINCIPAL

public static final String CONNECTOR_PRINCIPAL

See Also:

Constant Field Values

CONNECTOR_CREDENTIALS

public static final String CONNECTOR_CREDENTIALS

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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.