org.apache.felix.framework

Class FrameworkStartLevelImpl

java.lang.Object

org.apache.felix.framework.FrameworkStartLevelImpl

All Implemented Interfaces:

java.lang.Runnable, BundleReference, FrameworkStartLevel

class FrameworkStartLevelImpl
extends java.lang.Object
implements FrameworkStartLevel, java.lang.Runnable

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) class	FrameworkStartLevelImpl.BundleStartLevelImpl

Field Summary

Fields

Modifier and Type	Field and Description
private static int	BUNDLE_IDX
private Felix	m_felix
private ServiceRegistry	m_registry
private java.util.List<FrameworkListener[]>	m_requestListeners
private java.util.List	m_requests
private ServiceRegistration<StartLevel>	m_slReg
private java.lang.Thread	m_thread
private static int	STARTLEVEL_IDX
(package private) static java.lang.String	THREAD_NAME

Constructor Summary

Constructors

Constructor and Description
FrameworkStartLevelImpl(Felix felix, ServiceRegistry registry)

Method Summary

Modifier and Type	Method and Description
(package private) BundleStartLevel	createBundleStartLevel(BundleImpl bundle)
Bundle	getBundle() Returns the Bundle object associated with this BundleReference.
int	getInitialBundleStartLevel() Return the initial start level value that is assigned to a Bundle when it is first installed.
int	getStartLevel() Return the active start level value of the Framework.
void	run()
void	setInitialBundleStartLevel(int startlevel) Set the initial start level value that is assigned to a Bundle when it is first installed.
void	setStartLevel(int startlevel, FrameworkListener... listeners) Modify the active start level of the Framework and notify when complete.
(package private) void	setStartLevelAndWait(int startlevel) This method is currently only called by the by the thread that calls the Felix.start() method and the shutdown thread when the framework is shutting down.
(package private) void	start()
private void	startThread()
(package private) void	stop() Stops the FelixStartLevel thread on system shutdown.

Methods inherited from class java.lang.Object

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

Field Detail

THREAD_NAME

static final java.lang.String THREAD_NAME

See Also:

Constant Field Values

BUNDLE_IDX

private static final int BUNDLE_IDX

See Also:

Constant Field Values

STARTLEVEL_IDX

private static final int STARTLEVEL_IDX

See Also:

Constant Field Values

m_felix

private final Felix m_felix

m_registry

private final ServiceRegistry m_registry

m_requests

private final java.util.List m_requests

m_requestListeners

private final java.util.List<FrameworkListener[]> m_requestListeners

m_slReg

private ServiceRegistration<StartLevel> m_slReg

m_thread

private java.lang.Thread m_thread

Constructor Detail

FrameworkStartLevelImpl

FrameworkStartLevelImpl(Felix felix,
                        ServiceRegistry registry)

Method Detail

start

void start()

startThread

private void startThread()

stop

void stop()

Stops the FelixStartLevel thread on system shutdown. Shutting down the thread explicitly is required in the embedded case, where Felix may be stopped without the Java VM being stopped. In this case the FelixStartLevel thread must be stopped explicitly.

This method is called by the StartLevelActivator#stop(BundleContext) method.

getBundle

public Bundle getBundle()

Description copied from interface: BundleReference

Returns the Bundle object associated with this BundleReference.

Specified by:

getBundle in interface BundleReference

Returns:

The Bundle object associated with this BundleReference.

getStartLevel

public int getStartLevel()

Description copied from interface: FrameworkStartLevel

Return the active start level value of the Framework. If the Framework is in the process of changing the start level this method must return the active start level if this differs from the requested start level.

Specified by:

getStartLevel in interface FrameworkStartLevel

Returns:

The active start level value of the Framework.

setStartLevel

public void setStartLevel(int startlevel,
                          FrameworkListener... listeners)

Description copied from interface: FrameworkStartLevel

Modify the active start level of the Framework and notify when complete.

The Framework will move to the requested start level. This method will return immediately to the caller and the start level change will occur asynchronously on another thread. The specified FrameworkListener s are notified, in the order specified, when the start level change is complete. When the start level change completes normally, each specified FrameworkListener will be called with a Framework event of type FrameworkEvent.STARTLEVEL_CHANGED. If the start level change does not complete normally, each specified FrameworkListener will be called with a Framework event of type FrameworkEvent.ERROR.

If the specified start level is higher than the active start level, the Framework will continue to increase the start level until the Framework has reached the specified start level. At each intermediate start level value on the way to and including the target start level, the Framework must:

1. Change the active start level to the intermediate start level value.
2. Start bundles at the intermediate start level whose autostart setting indicate they must be started. They are started as described in the Bundle.start(int) method using the Bundle.START_TRANSIENT option. The Bundle.START_ACTIVATION_POLICY option must also be used if BundleStartLevel.isActivationPolicyUsed() returns true for the bundle.

When this process completes after the specified start level is reached, the Framework will fire a Framework event of type FrameworkEvent.STARTLEVEL_CHANGED to announce it has moved to the specified start level.

If the specified start level is lower than the active start level, the Framework will continue to decrease the start level until the Framework has reached the specified start level. At each intermediate start level value on the way to and including the specified start level, the framework must:

1. Stop bundles at the intermediate start level as described in the Bundle.stop(int) method using the Bundle.STOP_TRANSIENT option.
2. Change the active start level to the intermediate start level value.

When this process completes after the specified start level is reached, the Framework will fire a Framework event of type FrameworkEvent.STARTLEVEL_CHANGED to announce it has moved to the specified start level.

If the specified start level is equal to the active start level, then no bundles are started or stopped, however, the Framework must fire a Framework event of type FrameworkEvent.STARTLEVEL_CHANGED to announce it has finished moving to the specified start level. This event may arrive before this method returns.

Specified by:

setStartLevel in interface FrameworkStartLevel

Parameters:

startlevel - The requested start level for the Framework.

listeners - Zero or more listeners to be notified when the start level change has been completed. The specified listeners do not need to be otherwise registered with the framework. If a specified listener is already registered with the framework, it will be notified twice.

setStartLevelAndWait

void setStartLevelAndWait(int startlevel)

This method is currently only called by the by the thread that calls the Felix.start() method and the shutdown thread when the framework is shutting down.

Parameters:

startlevel -

getInitialBundleStartLevel

public int getInitialBundleStartLevel()

Description copied from interface: FrameworkStartLevel

Return the initial start level value that is assigned to a Bundle when it is first installed.

Specified by:

getInitialBundleStartLevel in interface FrameworkStartLevel

Returns:

The initial start level value for Bundles.

See Also:

FrameworkStartLevel.setInitialBundleStartLevel(int)

setInitialBundleStartLevel

public void setInitialBundleStartLevel(int startlevel)

Description copied from interface: FrameworkStartLevel

Set the initial start level value that is assigned to a Bundle when it is first installed.

The initial bundle start level will be set to the specified start level. The initial bundle start level value will be persistently recorded by the Framework.

When a Bundle is installed via BundleContext.installBundle, it is assigned the initial bundle start level value.

The default initial bundle start level value is 1 unless this method has been called to assign a different initial bundle start level value.

This method does not change the start level values of installed bundles.

Specified by:

setInitialBundleStartLevel in interface FrameworkStartLevel

Parameters:

startlevel - The initial start level for newly installed bundles.

createBundleStartLevel

BundleStartLevel createBundleStartLevel(BundleImpl bundle)

run

public void run()

Specified by:

run in interface java.lang.Runnable