com.atlassian.plugin.impl

Class AbstractPlugin

java.lang.Object

com.atlassian.plugin.impl.AbstractPlugin

All Implemented Interfaces:

Plugin, Resourced, Comparable<Plugin>

Direct Known Subclasses:

DefaultDynamicPlugin, OsgiBundlePlugin, OsgiPlugin, StaticPlugin, XmlDynamicPlugin

public abstract class AbstractPlugin
extends Object
implements Plugin, Comparable<Plugin>

Represents the base class for all plugins. Note: This class has a natural ordering that is inconsistent with equals.

p1.equals(p2) == true will give p1.compareTo(p2) == 0 but the opposite is not guaranteed because we keep a map of plugins versus loaders in the DefaultPluginManager .

A plugin with the same key and version may well be loaded from multiple loaders (in fact with UPM it's almost guaranteed) so we CANNOT override equals.

Field Summary

Fields inherited from interface com.atlassian.plugin.Plugin

NAME_COMPARATOR, VERSION_1, VERSION_2, VERSION_3

Constructor Summary

Constructors

Constructor and Description
AbstractPlugin()

Method Summary

Methods

Modifier and Type	Method and Description
void	addModuleDescriptor(ModuleDescriptor<?> moduleDescriptor)
void	close() Free any resources held by this plugin.
protected boolean	compareAndSetPluginState(PluginState requiredExistingState, PluginState desiredState) Only sets the plugin state if it is in the expected state.
int	compareTo(Plugin otherPlugin) Compares this Plugin to another Plugin for order.
boolean	containsSystemModule()
void	disable() Disables the plugin.
protected void	disableInternal() Perform any internal disabling logic.
void	enable() Enables the plugin.
protected PluginState	enableInternal() Perform any internal enabling logic.
Set<String>	getActivePermissions()
Date	getDateInstalled() The date this plugin was installed into the system, is the same as the loaded date for non artifact backed plugins
Date	getDateLoaded() The date this plugin was loaded into the system.
String	getI18nNameKey() Returns the i18nKey used to get an internationalised name for this plugin.
InstallationMode	getInstallationMode() Gets the installation mode
String	getKey()
protected org.slf4j.Logger	getLog()
ModuleDescriptor<?>	getModuleDescriptor(String key) Get the ModuleDescriptor for a particular key.
Collection<ModuleDescriptor<?>>	getModuleDescriptors() Returns the module descriptors for this plugin
<T> List<ModuleDescriptor<T>>	getModuleDescriptorsByModuleClass(Class<T> aClass) Get the descriptors whose module class implements or is assignable from the supplied Class.
String	getName() Returns the non-localised name of this plugin if defined.
PluginInformation	getPluginInformation()
PluginState	getPluginState() Returns this plugin's current state.
int	getPluginsVersion() Gets the version of the plugins system to handle this plugin
Set<String>	getRequiredPlugins()
ResourceDescriptor	getResourceDescriptor(String type, String name) Deprecated.
List<ResourceDescriptor>	getResourceDescriptors() Get a List of all the descriptors .
List<ResourceDescriptor>	getResourceDescriptors(String type) Get a list of all descriptors of a particular type.
ResourceLocation	getResourceLocation(String type, String name) Get a ResourceLocation of a particular type and name.
boolean	hasAllPermissions()
void	install() Installs the plugin into any internal, managing container.
protected void	installInternal() Perform any internal installation logic.
boolean	isBundledPlugin() Whether the plugin is a "bundled" plugin that can't be removed.
boolean	isEnabled() Deprecated.
boolean	isEnabledByDefault()
boolean	isSystemPlugin() Whether the plugin is a "system" plugin that shouldn't be made visible to the user.
protected void	removeModuleDescriptor(String key)
void	setEnabled(boolean enabled) Deprecated.
void	setEnabledByDefault(boolean enabledByDefault)
void	setI18nNameKey(String i18nNameKey) Sets the i18nKey used to get an internationalised name for this plugin.
void	setKey(String key)
void	setName(String name) Sets the non-localised name of this plugin.
void	setPluginInformation(PluginInformation pluginInformation)
protected void	setPluginState(PluginState state)
void	setPluginsVersion(int pluginsVersion) Sets the version of the plugins system
void	setResources(Resourced resources)
void	setSystemPlugin(boolean system)
String	toString()
void	uninstall() Uninstalls the plugin from any internal container.
protected void	uninstallInternal() Perform any internal uninstallation logic.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.atlassian.plugin.Plugin

getClassLoader, getResource, getResourceAsStream, isDeleteable, isDynamicallyLoaded, isUninstallable, loadClass

Constructor Detail

AbstractPlugin

public AbstractPlugin()

Method Detail

getName

public String getName()

Description copied from interface: Plugin

Returns the non-localised name of this plugin if defined.

This corresponds to the value of the name field in the plugin's XML configuration file.

You would expect a plugin developer to fill in one of either name, or i18n-name-key, but the framework does no validation and makes no guarantees that this is the case.

Specified by:

getName in interface Plugin

Returns:

the non-localised name of this plugin if defined, or null.

See Also:

Plugin.getI18nNameKey()

setName

public void setName(String name)

Description copied from interface: Plugin

Sets the non-localised name of this plugin.

Specified by:

setName in interface Plugin

Parameters:

name - the name.

See Also:

Plugin.getName()

getLog

protected org.slf4j.Logger getLog()

Returns:

the logger used internally

getI18nNameKey

public String getI18nNameKey()

Description copied from interface: Plugin

Returns the i18nKey used to get an internationalised name for this plugin.

This corresponds to the value of the i18n-name-key field in the plugin's XML configuration file.

You would expect a plugin developer to fill in one of either name, or i18n-name-key, but the framework does no validation and makes no guarantees that this is the case.

Specified by:

getI18nNameKey in interface Plugin

Returns:

the i18n Name Key for this plugin if defined, or null.

See Also:

Plugin.getName()

setI18nNameKey

public void setI18nNameKey(String i18nNameKey)

Description copied from interface: Plugin

Sets the i18nKey used to get an internationalised name for this plugin.

Specified by:

setI18nNameKey in interface Plugin

Parameters:

i18nNameKey - the i18n Name Key.

See Also:

Plugin.getI18nNameKey()

getKey

public String getKey()

Specified by:

getKey in interface Plugin

setKey

public void setKey(String key)

Specified by:

setKey in interface Plugin

addModuleDescriptor

public void addModuleDescriptor(ModuleDescriptor<?> moduleDescriptor)

Specified by:

addModuleDescriptor in interface Plugin

removeModuleDescriptor

protected void removeModuleDescriptor(String key)

getModuleDescriptors

public Collection<ModuleDescriptor<?>> getModuleDescriptors()

Returns the module descriptors for this plugin

Specified by:

getModuleDescriptors in interface Plugin

Returns:

An unmodifiable list of the module descriptors.

getModuleDescriptor

public ModuleDescriptor<?> getModuleDescriptor(String key)

Description copied from interface: Plugin

Get the ModuleDescriptor for a particular key. Returns null if the plugin does not exist.

Note: The ModuleDescriptor.getModule() may throw ClassCastException if the expected type is incorrect.

Specified by:

getModuleDescriptor in interface Plugin

Parameters:

key - the String complete key of the module, in the form "org.example.plugin:module-key".

Returns:

the ModuleDescriptor of the expected type.

getModuleDescriptorsByModuleClass

public <T> List<ModuleDescriptor<T>> getModuleDescriptorsByModuleClass(Class<T> aClass)

Description copied from interface: Plugin

Get the descriptors whose module class implements or is assignable from the supplied Class.

Note: The ModuleDescriptor.getModule() may throw ClassCastException if the expected type is incorrect. Normally this method would not be supplied with anything other than Object or <?>, unless you are confident in the super type of the module classes this Plugin provides.

Specified by:

getModuleDescriptorsByModuleClass in interface Plugin

Type Parameters:

T - The expected module type of the returned descriptors.

Parameters:

aClass - the super class the descriptors return.

Returns:

the List of descriptors of the expected type.

getPluginState

public PluginState getPluginState()

Description copied from interface: Plugin

Returns this plugin's current state.

Specified by:

getPluginState in interface Plugin

Returns:

the current state of the plugin.

setPluginState

protected void setPluginState(PluginState state)

compareAndSetPluginState

protected boolean compareAndSetPluginState(PluginState requiredExistingState,
                               PluginState desiredState)

Only sets the plugin state if it is in the expected state.

Parameters:

requiredExistingState - The expected state

desiredState - The desired state

Returns:

True if the set was successful, false if not in the expected state

Since:

2.4

isEnabledByDefault

public boolean isEnabledByDefault()

Specified by:

isEnabledByDefault in interface Plugin

setEnabledByDefault

public void setEnabledByDefault(boolean enabledByDefault)

Specified by:

setEnabledByDefault in interface Plugin

getPluginsVersion

public int getPluginsVersion()

Description copied from interface: Plugin

Gets the version of the plugins system to handle this plugin

Specified by:

getPluginsVersion in interface Plugin

Returns:

The plugins version. If undefined, assumed to be 1.

setPluginsVersion

public void setPluginsVersion(int pluginsVersion)

Description copied from interface: Plugin

Sets the version of the plugins system

Specified by:

setPluginsVersion in interface Plugin

Parameters:

pluginsVersion - The version

getPluginInformation

public PluginInformation getPluginInformation()

Specified by:

getPluginInformation in interface Plugin

setPluginInformation

public void setPluginInformation(PluginInformation pluginInformation)

Specified by:

setPluginInformation in interface Plugin

setResources

public void setResources(Resourced resources)

Specified by:

setResources in interface Plugin

getResourceDescriptors

public List<ResourceDescriptor> getResourceDescriptors()

Description copied from interface: Resourced

Get a List of all the descriptors .

Note: since 2.2 this list must be immutable, previously modifying this list could modify the underlying list.

Specified by:

getResourceDescriptors in interface Resourced

Returns:

all resource descriptors this object supports.

getResourceDescriptors

public List<ResourceDescriptor> getResourceDescriptors(String type)

Description copied from interface: Resourced

Get a list of all descriptors of a particular type.

Note: since 2.2 this list must be immutable, previously this list was modifiable but modifications would not be reflected in the underlying list.

Specified by:

getResourceDescriptors in interface Resourced

Returns:

all resource descriptors this object supports.

getResourceLocation

public ResourceLocation getResourceLocation(String type,
                                   String name)

Description copied from interface: Resourced

Get a ResourceLocation of a particular type and name.

Specified by:

getResourceLocation in interface Resourced

Returns:

the specified resource location if found, null otherwise.

getResourceDescriptor

@Deprecated
public ResourceDescriptor getResourceDescriptor(String type,
                                                  String name)

Deprecated.

Description copied from interface: Resourced

Get a ResourceDescriptor of a particular type and name.

Specified by:

getResourceDescriptor in interface Resourced

Returns:

the specified resource descriptor if found, null otherwise.

isEnabled

@Deprecated
public boolean isEnabled()

Deprecated.

Specified by:

isEnabled in interface Plugin

Returns:

true if the plugin has been enabled

enable

public final void enable()

Description copied from interface: Plugin

Enables the plugin. Unless an exception is thrown, the plugin should then be in either the PluginState.ENABLING or PluginState.ENABLED state. If the plugin is already in the PluginState.ENABLING or PluginState.ENABLED state, nothing will happen.

Specified by:

enable in interface Plugin

enableInternal

protected PluginState enableInternal()
                              throws PluginException

Perform any internal enabling logic. Subclasses should only throw PluginException.

Returns:

Either PluginState.ENABLED or PluginState.ENABLING

Throws:

PluginException - If the plugin could not be enabled

Since:

2.2.0

disable

public final void disable()

Description copied from interface: Plugin

Disables the plugin. Unless an exception is thrown, the plugin should be in the PluginState.DISABLED state. If the plugin is already in the PluginState.DISABLED state, nothing will happen.

Specified by:

disable in interface Plugin

disableInternal

protected void disableInternal()
                        throws PluginException

Perform any internal disabling logic. Subclasses should only throw PluginException.

Throws:

PluginException - If the plugin could not be disabled

Since:

2.2.0

getRequiredPlugins

public Set<String> getRequiredPlugins()

Specified by:

getRequiredPlugins in interface Plugin

Returns:

A list of plugin keys that this plugin is dependent upon, or an empty list if none

getActivePermissions

public final Set<String> getActivePermissions()

Specified by:

getActivePermissions in interface Plugin

Returns:

the list of permissions currently valid for the plugin

hasAllPermissions

public final boolean hasAllPermissions()

Specified by:

hasAllPermissions in interface Plugin

Returns:

true if the plugin has all the permissions

getInstallationMode

public InstallationMode getInstallationMode()

Description copied from interface: Plugin

Gets the installation mode

Specified by:

getInstallationMode in interface Plugin

Returns:

the plugin's installation mode, local or remote.

close

public void close()

Description copied from interface: Plugin

Free any resources held by this plugin. To be called during uninstallation of the Plugin.

Specified by:

close in interface Plugin

install

public final void install()

Description copied from interface: Plugin

Installs the plugin into any internal, managing container. This method will be called on every startup. Unless an exception is thrown, the plugin should be in the PluginState.INSTALLED state. If the plugin is already in the PluginState.INSTALLED state, nothing will happen.

Specified by:

install in interface Plugin

installInternal

protected void installInternal()
                        throws PluginException

Perform any internal installation logic. Subclasses should only throw PluginException.

Throws:

PluginException - If the plugin could not be installed

Since:

2.2.0

uninstall

public final void uninstall()

Description copied from interface: Plugin

Uninstalls the plugin from any internal container. This method will be called on every shutdown. Unless an exception is thrown, the plugin should be in the PluginState.UNINSTALLED state. If the plugin is already in the PluginState.UNINSTALLED state, nothing will happen.

Specified by:

uninstall in interface Plugin

uninstallInternal

protected void uninstallInternal()
                          throws PluginException

Perform any internal uninstallation logic. Subclasses should only throw PluginException.

Throws:

PluginException - If the plugin could not be uninstalled

Since:

2.2.0

setEnabled

@Deprecated
public void setEnabled(boolean enabled)

Deprecated.

Setter for the enabled state of a plugin. If this is set to false then the plugin will not execute.

Specified by:

setEnabled in interface Plugin

Parameters:

enabled - new enabled state

isSystemPlugin

public boolean isSystemPlugin()

Description copied from interface: Plugin

Whether the plugin is a "system" plugin that shouldn't be made visible to the user.

Specified by:

isSystemPlugin in interface Plugin

Returns:

true if this plugin is a "system" plugin.

containsSystemModule

public boolean containsSystemModule()

Specified by:

containsSystemModule in interface Plugin

setSystemPlugin

public void setSystemPlugin(boolean system)

Specified by:

setSystemPlugin in interface Plugin

Parameters:

system - whether the plugin is a "system" plugin that shouldn't be made visible to the user.

getDateLoaded

public Date getDateLoaded()

Description copied from interface: Plugin

The date this plugin was loaded into the system.

Specified by:

getDateLoaded in interface Plugin

Returns:

The date this plugin was loaded into the system.

getDateInstalled

public Date getDateInstalled()

Description copied from interface: Plugin

The date this plugin was installed into the system, is the same as the loaded date for non artifact backed plugins

Specified by:

getDateInstalled in interface Plugin

Returns:

The date this plugin was installed into the system

isBundledPlugin

public boolean isBundledPlugin()

Description copied from interface: Plugin

Whether the plugin is a "bundled" plugin that can't be removed.

Specified by:

isBundledPlugin in interface Plugin

Returns:

true if this plugin is a "bundled" plugin.

compareTo

public int compareTo(Plugin otherPlugin)

Compares this Plugin to another Plugin for order. The primary sort field is the key, and the secondary field is the version number.

Specified by:

compareTo in interface Comparable<Plugin>

Parameters:

otherPlugin - The plugin to be compared.

Returns:

a negative integer, zero, or a positive integer as this Plugin is less than, equal to, or greater than the specified Plugin.

See Also:

VersionStringComparator, Comparable.compareTo(T)

toString

public String toString()

Overrides:

toString in class Object