org.ow2.chameleon.core.activators

Class StabilityComputation

java.lang.Object

org.ow2.chameleon.core.activators.StabilityComputation

All Implemented Interfaces:

org.osgi.framework.BundleActivator, Stability

public class StabilityComputation
extends Object
implements org.osgi.framework.BundleActivator, Stability

Activator exposing the Stability service.

Constructor Summary

Constructors

Constructor and Description
StabilityComputation()

Method Summary

Modifier and Type	Method and Description
Map<StabilityChecker,StabilityResult>	getStabilityResult() Checks and retrieve the individual stability check result.
boolean	isStable() Checks whether the current framework is stable or not.
void	start(org.osgi.framework.BundleContext context) Stores the bundle context, and expose the stability service.
void	stop(org.osgi.framework.BundleContext context) Unregister the stability service.
boolean	waitForStability() Waits for the stability to be reached.

Methods inherited from class java.lang.Object

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

Constructor Detail

StabilityComputation

public StabilityComputation()

Method Detail

start

public void start(org.osgi.framework.BundleContext context)
           throws Exception

Stores the bundle context, and expose the stability service.

Specified by:

start in interface org.osgi.framework.BundleActivator

Throws:

Exception

stop

public void stop(org.osgi.framework.BundleContext context)
          throws Exception

Unregister the stability service.

Specified by:

stop in interface org.osgi.framework.BundleActivator

Throws:

Exception

isStable

public boolean isStable()

Checks whether the current framework is stable or not.

Specified by:

isStable in interface Stability

Returns:

true if the stability is reached, false otherwise.

waitForStability

public boolean waitForStability()

Waits for the stability to be reached. This method may block the caller thread for quite some time depending of the configured grace period and the maximum number of attempt.

Specified by:

waitForStability in interface Stability

Returns:

whether of not the stability has been reached.

getStabilityResult

public Map<StabilityChecker,StabilityResult> getStabilityResult()

Checks and retrieve the individual stability check result.

Specified by:

getStabilityResult in interface Stability

Returns:

the results. The returned map is ordered.