org.nuxeo.runtime.model.impl
Class ComponentManagerImpl

java.lang.Object
  org.nuxeo.runtime.model.impl.ComponentManagerImpl

All Implemented Interfaces:

ComponentManager

public class ComponentManagerImpl
extends Object
implements ComponentManager

Author:

Bogdan Stefanescu

Field Summary

protected Map<ComponentName,Set<Extension>>

pendingExtensions

Constructor Summary

ComponentManagerImpl(RuntimeService runtime)

Method Summary

void	_register(RegistrationInfoImpl ri)
void	_unregister(RegistrationInfoImpl ri)
void	addComponentListener(ComponentListener listener) Adds a component listener.
protected void	addDependency(ComponentName name, RegistrationInfoImpl dependent)
protected boolean	computeBlockingDependencies(RegistrationInfoImpl ri)
ComponentInstance	getComponent(ComponentName name) Gets object instance managed by the named component.
Collection<ComponentName>	getNeededRegistrations()
Collection<Extension>	getPendingExtensions(ComponentName name)
Collection<ComponentName>	getPendingRegistrations() Gets the list of pending registrations.
RegistrationInfo	getRegistrationInfo(ComponentName name) Gets the component if there is one having the given name.
Collection<RegistrationInfo>	getRegistrations() Gets the registrated components.
<T> T	getService(Class<T> serviceClass) Gets the service of type serviceClass if such a service was declared by a resolved runtime component.
String[]	getServices()
boolean	isRegistered(ComponentName name) Checks whether or not a component with the given name was registered.
void	loadContributions(RegistrationInfoImpl ri, Extension xt)
void	register(RegistrationInfo regInfo) Handles the registration of the given registration info.
void	registerExtension(Extension extension)
void	registerServices(RegistrationInfoImpl ri)
void	removeComponentListener(ComponentListener listener) Removes a component listener.
protected Set<RegistrationInfoImpl>	removeDependencies(ComponentName name)
void	shutdown() Shuts down the component registry.
int	size() Gets the number of registered objects in this registry.
void	unregister(ComponentName name) Unregisters a component given its name.
void	unregister(RegistrationInfo regInfo) Handles the unregistration of the given registration info.
void	unregisterExtension(Extension extension)
void	unregisterServices(RegistrationInfoImpl ri)

Methods inherited from class java.lang.Object

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

Field Detail

pendingExtensions

protected final Map<ComponentName,Set<Extension>> pendingExtensions

Constructor Detail

ComponentManagerImpl

public ComponentManagerImpl(RuntimeService runtime)

Method Detail

getRegistrations

public Collection<RegistrationInfo> getRegistrations()

Description copied from interface: ComponentManager

Gets the registrated components.

Specified by:

getRegistrations in interface ComponentManager

Returns:

a read only collection of components

getPendingRegistrations

public Collection<ComponentName> getPendingRegistrations()

Description copied from interface: ComponentManager

Gets the list of pending registrations.

Specified by:

getPendingRegistrations in interface ComponentManager

Returns:

the pending registrations or an empty collection if none

getNeededRegistrations

public Collection<ComponentName> getNeededRegistrations()

getPendingExtensions

public Collection<Extension> getPendingExtensions(ComponentName name)

getRegistrationInfo

public RegistrationInfo getRegistrationInfo(ComponentName name)

Description copied from interface: ComponentManager

Gets the component if there is one having the given name.

Specified by:

getRegistrationInfo in interface ComponentManager

Parameters:

name - the component name

Returns:

the component if any was registered with that name, null otherwise

isRegistered

public boolean isRegistered(ComponentName name)

Description copied from interface: ComponentManager

Checks whether or not a component with the given name was registered.

Specified by:

isRegistered in interface ComponentManager

Parameters:

name - the object name

Returns:

true if an object with the given name was registered, false otherwise

size

public int size()

Description copied from interface: ComponentManager

Gets the number of registered objects in this registry.

Specified by:

size in interface ComponentManager

Returns:

the number fo registered objects

getComponent

public ComponentInstance getComponent(ComponentName name)

Description copied from interface: ComponentManager

Gets object instance managed by the named component.

Specified by:

getComponent in interface ComponentManager

Parameters:

name - the object name

Returns:

the object instance if any. may be null

shutdown

public void shutdown()

Description copied from interface: ComponentManager

Shuts down the component registry.

This unregisters all objects registered in this registry.

Specified by:

shutdown in interface ComponentManager

register

public void register(RegistrationInfo regInfo)

Description copied from interface: ComponentManager

Handles the registration of the given registration info.

This is called by the main registry when all dependencies of this registration info were solved and the object can be registered.

If true is returned, the object will be added to the main registry under the name given in RegistrationInfo.

Specified by:

register in interface ComponentManager

Parameters:

regInfo - the registration info

_register

public final void _register(RegistrationInfoImpl ri)

unregister

public void unregister(RegistrationInfo regInfo)

Description copied from interface: ComponentManager

Handles the unregistration of the given registration info.

This is called by the main registry when the object is u nregistered.

If true is returned, the object will be removed fom the main registry.

Specified by:

unregister in interface ComponentManager

Parameters:

regInfo - the registration info

_unregister

public final void _unregister(RegistrationInfoImpl ri)

unregister

public void unregister(ComponentName name)

Description copied from interface: ComponentManager

Unregisters a component given its name.

Specified by:

unregister in interface ComponentManager

Parameters:

name - the component name

addComponentListener

public void addComponentListener(ComponentListener listener)

Description copied from interface: ComponentManager

Adds a component listener.

Does nothing if the given listener is already registered.

Specified by:

addComponentListener in interface ComponentManager

Parameters:

listener - the component listener to add

removeComponentListener

public void removeComponentListener(ComponentListener listener)

Description copied from interface: ComponentManager

Removes a component listener.

Does nothing if the given listener is not registered.

Specified by:

removeComponentListener in interface ComponentManager

Parameters:

listener - the component listener to remove

computeBlockingDependencies

protected boolean computeBlockingDependencies(RegistrationInfoImpl ri)

addDependency

protected void addDependency(ComponentName name,
                             RegistrationInfoImpl dependent)

removeDependencies

protected Set<RegistrationInfoImpl> removeDependencies(ComponentName name)

registerExtension

public void registerExtension(Extension extension)
                       throws Exception

Throws:

Exception

unregisterExtension

public void unregisterExtension(Extension extension)
                         throws Exception

Throws:

Exception

loadContributions

public void loadContributions(RegistrationInfoImpl ri,
                              Extension xt)

registerServices

public void registerServices(RegistrationInfoImpl ri)

unregisterServices

public void unregisterServices(RegistrationInfoImpl ri)

getServices

public String[] getServices()

getService

public <T> T getService(Class<T> serviceClass)

Description copied from interface: ComponentManager

Gets the service of type serviceClass if such a service was declared by a resolved runtime component.

If the component is not yet activated it will be prior to return the service

Specified by:

getService in interface ComponentManager

Type Parameters:

T - the service type

Parameters:

serviceClass - the service class

Returns:

the service object