org.springframework.ui.context.support
Class ResourceBundleThemeSource

java.lang.Object
  org.springframework.ui.context.support.ResourceBundleThemeSource

All Implemented Interfaces:

HierarchicalThemeSource, ThemeSource

public class ResourceBundleThemeSource
extends Object
implements HierarchicalThemeSource

ThemeSource implementation that looks up an individual ResourceBundle per theme. The theme name gets interpreted as ResourceBundle basename, supporting a common basename prefix for all themes.

Author:

Jean-Pierre Pawlak, Juergen Hoeller

See Also:

setBasenamePrefix(java.lang.String), ResourceBundle, ResourceBundleMessageSource

Field Summary

protected Log

logger

Constructor Summary

ResourceBundleThemeSource()

Method Summary

protected MessageSource	createMessageSource(String basename) Create a MessageSource for the given basename, to be used as MessageSource for the corresponding theme.
ThemeSource	getParentThemeSource() Return the parent of this ThemeSource, or null if none.
Theme	getTheme(String themeName) This implementation returns a SimpleTheme instance, holding a ResourceBundle-based MessageSource whose basename corresponds to the given theme name (prefixed by the configured "basenamePrefix").
protected void	initParent(Theme theme) Initialize the MessageSource of the given theme with the one from the corresponding parent of this ThemeSource.
void	setBasenamePrefix(String basenamePrefix) Set the prefix that gets applied to the ResourceBundle basenames, i.e. the theme names.
void	setParentThemeSource(ThemeSource parent) Set the parent that will be used to try to resolve theme messages that this object can't resolve.

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected final Log logger

Constructor Detail

ResourceBundleThemeSource

public ResourceBundleThemeSource()

Method Detail

setParentThemeSource

public void setParentThemeSource(ThemeSource parent)

Description copied from interface: HierarchicalThemeSource

Set the parent that will be used to try to resolve theme messages that this object can't resolve.

Specified by:

setParentThemeSource in interface HierarchicalThemeSource

Parameters:

parent - the parent ThemeSource that will be used to resolve messages that this object can't resolve. May be null, in which case no further resolution is possible.

getParentThemeSource

public ThemeSource getParentThemeSource()

Description copied from interface: HierarchicalThemeSource

Return the parent of this ThemeSource, or null if none.

Specified by:

getParentThemeSource in interface HierarchicalThemeSource

setBasenamePrefix

public void setBasenamePrefix(String basenamePrefix)

Set the prefix that gets applied to the ResourceBundle basenames, i.e. the theme names. E.g.: basenamePrefix="test.", themeName="theme" -> basename="test.theme".

Note that ResourceBundle names are effectively classpath locations: As a consequence, the JDK's standard ResourceBundle treats dots as package separators. This means that "test.theme" is effectively equivalent to "test/theme", just like it is for programmatic java.util.ResourceBundle usage.

See Also:

ResourceBundle.getBundle(String)

getTheme

public Theme getTheme(String themeName)

This implementation returns a SimpleTheme instance, holding a ResourceBundle-based MessageSource whose basename corresponds to the given theme name (prefixed by the configured "basenamePrefix").

SimpleTheme instances are cached per theme name. Use a reloadable MessageSource if themes should reflect changes to the underlying files.

Specified by:

getTheme in interface ThemeSource

Parameters:

themeName - the name of the theme

Returns:

the corresponding Theme, or null if none defined. Note that, by convention, a ThemeSource should at least be able to return a default Theme for the default theme name "theme" but may also return default Themes for other theme names.

See Also:

setBasenamePrefix(java.lang.String), createMessageSource(java.lang.String)

createMessageSource

protected MessageSource createMessageSource(String basename)

Create a MessageSource for the given basename, to be used as MessageSource for the corresponding theme.

Default implementation creates a ResourceBundleMessageSource. for the given basename. A subclass could create a specifically configured ReloadableResourceBundleMessageSource, for example.

Parameters:

basename - the basename to create a MessageSource for

Returns:

the MessageSource

See Also:

ResourceBundleMessageSource, ReloadableResourceBundleMessageSource

initParent

protected void initParent(Theme theme)

Initialize the MessageSource of the given theme with the one from the corresponding parent of this ThemeSource.

Parameters:

theme - the Theme to (re-)initialize