com.atlassian.plugin
Interface PluginAccessor

All Known Subinterfaces:

PluginManager

All Known Implementing Classes:

DefaultPluginManager, DefaultPluginManager, EnabledModuleCachingPluginAccessor

public interface PluginAccessor

Allows access to the current plugin system state

Nested Class Summary

static class

PluginAccessor.Descriptor The plugin descriptor file.

Method Summary

ClassLoader	getClassLoader() Retrieve the class loader responsible for loading classes and resources from plugins.
Class<?>	getDynamicPluginClass(String className) Deprecated. since 0.21 this method is not used, use getPlugin(String).getClassLoader().loadClass(String)
InputStream	getDynamicResourceAsStream(String resourcePath) Retrieve a resource from a currently loaded (and active) dynamically loaded plugin.
<D extends ModuleDescriptor<?>> List<D>	getEnabledModuleDescriptorsByClass(Class<D> descriptorClazz) Get all enabled module descriptors that have a specific descriptor class.
<D extends ModuleDescriptor<?>> List<D>	getEnabledModuleDescriptorsByClass(Class<D> descriptorClazz, boolean verbose) Deprecated. Since 2.3.0, use #getEnabledModuleDescriptorsByClass(Class) instead
<M> List<ModuleDescriptor<M>>	getEnabledModuleDescriptorsByType(String type) Deprecated. since 0.17, use getModuleDescriptors(com.atlassian.plugin.predicate.ModuleDescriptorPredicate) with an appropriate predicate instead.
<M> List<M>	getEnabledModulesByClass(Class<M> moduleClass) Retrieve all plugin modules that implement or extend a specific class.
<M> List<M>	getEnabledModulesByClassAndDescriptor(Class<ModuleDescriptor<M>>[] descriptorClazz, Class<M> moduleClass) Deprecated. since 0.17, use getModules(com.atlassian.plugin.predicate.ModuleDescriptorPredicate) with an appropriate predicate instead.
<M> List<M>	getEnabledModulesByClassAndDescriptor(Class<ModuleDescriptor<M>> descriptorClass, Class<M> moduleClass) Deprecated. since 0.17, use getModules(com.atlassian.plugin.predicate.ModuleDescriptorPredicate) with an appropriate predicate instead.
Plugin	getEnabledPlugin(String pluginKey) Retrieve a given plugin if it is enabled.
ModuleDescriptor<?>	getEnabledPluginModule(String completeKey) Retrieve an enabled plugin module by complete module key.
Collection<Plugin>	getEnabledPlugins() Get all of the currently enabled plugins.
<M> Collection<ModuleDescriptor<M>>	getModuleDescriptors(ModuleDescriptorPredicate<M> moduleDescriptorPredicate) Gets all module descriptors of installed modules that match the given predicate.
<M> Collection<M>	getModules(ModuleDescriptorPredicate<M> moduleDescriptorPredicate) Gets all installed modules that match the given predicate.
Plugin	getPlugin(String key) Retrieve a given plugin (whether enabled or not).
ModuleDescriptor<?>	getPluginModule(String completeKey) Retrieve any plugin module by complete module key.
InputStream	getPluginResourceAsStream(String pluginKey, String resourcePath) Deprecated. since 0.21 this method is not used, use getPlugin(String).getClassLoader().getResourceAsStream(String)
PluginRestartState	getPluginRestartState(String key) Gets the state of the plugin upon restart.
Collection<Plugin>	getPlugins() Gets all of the currently installed plugins.
Collection<Plugin>	getPlugins(PluginPredicate pluginPredicate) Gets all installed plugins that match the given predicate.
boolean	isPluginEnabled(String key) Whether or not a given plugin is currently enabled.
boolean	isPluginModuleEnabled(String completeKey) Whether or not a given plugin module is currently enabled.
boolean	isSystemPlugin(String key)

Method Detail

getPlugins

Collection<Plugin> getPlugins()

Gets all of the currently installed plugins.

Returns:

a collection of installed Plugins.

getPlugins

Collection<Plugin> getPlugins(PluginPredicate pluginPredicate)

Gets all installed plugins that match the given predicate.

Parameters:

pluginPredicate - the PluginPredicate to match.

Returns:

a collection of Plugins that match the given predicate.

Since:

0.17

getEnabledPlugins

Collection<Plugin> getEnabledPlugins()

Get all of the currently enabled plugins.

Returns:

a collection of installed and enabled Plugins.

getModules

<M> Collection<M> getModules(ModuleDescriptorPredicate<M> moduleDescriptorPredicate)

Gets all installed modules that match the given predicate.

Parameters:

moduleDescriptorPredicate - the ModuleDescriptorPredicate to match.

Returns:

a collection of modules as per ModuleDescriptor.getModule() that match the given predicate.

Since:

0.17

getModuleDescriptors

<M> Collection<ModuleDescriptor<M>> getModuleDescriptors(ModuleDescriptorPredicate<M> moduleDescriptorPredicate)

Gets all module descriptors of installed modules that match the given predicate.

Parameters:

moduleDescriptorPredicate - the ModuleDescriptorPredicate to match.

Returns:

a collection of ModuleDescriptors that match the given predicate.

Since:

0.17

getPlugin

Plugin getPlugin(String key)
                 throws IllegalArgumentException

Retrieve a given plugin (whether enabled or not).

Parameters:

key - The plugin key. Cannot be null.

Returns:

The enabled plugin, or null if that plugin does not exist.

Throws:

IllegalArgumentException - If the plugin key is null

getEnabledPlugin

Plugin getEnabledPlugin(String pluginKey)
                        throws IllegalArgumentException

Retrieve a given plugin if it is enabled.

Returns:

The enabled plugin, or null if that plugin does not exist or is disabled.

Throws:

IllegalArgumentException - If the plugin key is null

getPluginModule

ModuleDescriptor<?> getPluginModule(String completeKey)

Retrieve any plugin module by complete module key.

Note: the module may or may not be disabled.

getEnabledPluginModule

ModuleDescriptor<?> getEnabledPluginModule(String completeKey)

Retrieve an enabled plugin module by complete module key.

isPluginEnabled

boolean isPluginEnabled(String key)
                        throws IllegalArgumentException

Whether or not a given plugin is currently enabled.

Throws:

IllegalArgumentException - If the plugin key is null

isPluginModuleEnabled

boolean isPluginModuleEnabled(String completeKey)

Whether or not a given plugin module is currently enabled. This also checks if the plugin it is contained within is enabled also

See Also:

isPluginEnabled(String)

getEnabledModulesByClass

<M> List<M> getEnabledModulesByClass(Class<M> moduleClass)

Retrieve all plugin modules that implement or extend a specific class.

Returns:

List of modules that implement or extend the given class.

getEnabledModulesByClassAndDescriptor

@Deprecated
<M> List<M> getEnabledModulesByClassAndDescriptor(Class<ModuleDescriptor<M>>[] descriptorClazz,
                                                             Class<M> moduleClass)

Deprecated. since 0.17, use getModules(com.atlassian.plugin.predicate.ModuleDescriptorPredicate) with an appropriate predicate instead.

Retrieve all plugin modules that implement or extend a specific class, and has a descriptor class as one of descriptorClazz

Parameters:

descriptorClazz - @NotNull

moduleClass - @NotNull

Returns:

List of modules that implement or extend the given class. Empty list if none found

getEnabledModulesByClassAndDescriptor

@Deprecated
<M> List<M> getEnabledModulesByClassAndDescriptor(Class<ModuleDescriptor<M>> descriptorClass,
                                                             Class<M> moduleClass)

Deprecated. since 0.17, use getModules(com.atlassian.plugin.predicate.ModuleDescriptorPredicate) with an appropriate predicate instead.

Retrieve all plugin modules that implement or extend a specific class, and has a descriptor class as the descriptorClazz

Parameters:

descriptorClass - @NotNull

moduleClass - @NotNull

Returns:

List of modules that implement or extend the given class. Empty list if none found

getEnabledModuleDescriptorsByClass

<D extends ModuleDescriptor<?>> List<D> getEnabledModuleDescriptorsByClass(Class<D> descriptorClazz)

Get all enabled module descriptors that have a specific descriptor class.

Parameters:

descriptorClazz - module descriptor class

Returns:

List of ModuleDescriptors that implement or extend the given class.

getEnabledModuleDescriptorsByClass

<D extends ModuleDescriptor<?>> List<D> getEnabledModuleDescriptorsByClass(Class<D> descriptorClazz,
                                                                           boolean verbose)

Deprecated. Since 2.3.0, use #getEnabledModuleDescriptorsByClass(Class) instead

Get all enabled module descriptors that have a specific descriptor class.

Parameters:

descriptorClazz - module descriptor class

verbose - log verbose messages flag

Returns:

List of ModuleDescriptors that implement or extend the given class.

getEnabledModuleDescriptorsByType

@Deprecated
<M> List<ModuleDescriptor<M>> getEnabledModuleDescriptorsByType(String type)
                                                            throws PluginParseException

Deprecated. since 0.17, use getModuleDescriptors(com.atlassian.plugin.predicate.ModuleDescriptorPredicate) with an appropriate predicate instead.

Get all enabled module descriptors that have a specific descriptor type.

Returns:

List of ModuleDescriptors that are of a given type.

Throws:

PluginParseException

getDynamicResourceAsStream

InputStream getDynamicResourceAsStream(String resourcePath)

Retrieve a resource from a currently loaded (and active) dynamically loaded plugin. Will return the first resource found, so plugins with overlapping resource names will behave eratically.

Parameters:

resourcePath - the path to the resource to retrieve

Returns:

the dynamically loaded resource that matches that path, or null if no such resource is found

getPluginResourceAsStream

@Deprecated
InputStream getPluginResourceAsStream(String pluginKey,
                                                 String resourcePath)

Deprecated. since 0.21 this method is not used, use getPlugin(String).getClassLoader().getResourceAsStream(String)

Retrieve a resource from a currently loaded (and active) plugin. For statically loaded plugins, this just means pulling the resource from the PluginManager's classloader. For dynamically loaded plugins, this means retrieving the resource from the plugin's private classloader.

getDynamicPluginClass

@Deprecated
Class<?> getDynamicPluginClass(String className)
                               throws ClassNotFoundException

Deprecated. since 0.21 this method is not used, use getPlugin(String).getClassLoader().loadClass(String)

Retrieve a class from a currently loaded (and active) dynamically loaded plugin. Will return the first class found, so plugins with overlapping class names will behave eratically.

Parameters:

className - the name of the class to retrieve

Returns:

the dynamically loaded class that matches that name

Throws:

ClassNotFoundException - thrown if no classes by that name could be found in any of the enabled dynamic plugins

getClassLoader

ClassLoader getClassLoader()

Retrieve the class loader responsible for loading classes and resources from plugins.

Returns:

the class loader

Since:

0.21

isSystemPlugin

boolean isSystemPlugin(String key)

Returns:

true if the plugin is a system plugin.

getPluginRestartState

PluginRestartState getPluginRestartState(String key)

Gets the state of the plugin upon restart. Only useful for plugins that contain module descriptors with the \@RestartRequired annotation, and therefore, cannot be dynamically installed, upgraded, or removed at runtime

Parameters:

key - The plugin key

Returns:

The state of the plugin on restart