org.apache.tiles.definition.dao
Class BaseLocaleUrlDefinitionDAO

java.lang.Object
  org.apache.tiles.definition.dao.BaseLocaleUrlDefinitionDAO

All Implemented Interfaces:

TilesApplicationContextAware, DefinitionDAO<Locale>, URLReader, RefreshMonitor, Initializable

Direct Known Subclasses:

CachingLocaleUrlDefinitionDAO, LocaleUrlDefinitionDAO

public abstract class BaseLocaleUrlDefinitionDAO
extends Object
implements DefinitionDAO<Locale>, Initializable, TilesApplicationContextAware, RefreshMonitor, URLReader

Base abstract class for a DAO that is based on URLs and locale as a customization key.

Since:

2.1.0

Version:

$Rev: 734996 $ $Date: 2009-01-16 14:27:28 +0100 (ven, 16 gen 2009) $

Field Summary

protected TilesApplicationContext	applicationContext The application context.
protected Map<String,Long>	lastModifiedDates Contains the dates that the URL sources were last modified.
protected DefinitionsReader	reader Reader used to get definitions from the sources.
protected List<URL>	sourceURLs Contains the URL objects identifying where configuration data is found.

Constructor Summary

BaseLocaleUrlDefinitionDAO()
Constructor.

Method Summary

void	addSourceURL(URL sourceURL) Adds a single URL to use.
protected String[]	getResourceNames(String resourceString) Parse the resourceString into a list of resource paths which can be loaded by the application context.
protected String	getResourceString(Map<String,String> parms) Derive the resource string from the initialization parameters.
protected void	identifySources(Map<String,String> initParameters) Detects the sources to load.
void	init(Map<String,String> params) Initializes the object.
protected Map<String,Definition>	loadDefinitionsFromURL(URL url) Loads definitions from an URL without loading from "parent" URLs.
boolean	refreshRequired() Indicates whether the sources are out of date and need to be reloaded.
void	setApplicationContext(TilesApplicationContext applicationContext) Sets the Tiles application context.
void	setReader(DefinitionsReader reader) Sets the definitions reader that will read the URLs.
void	setSourceURLs(List<URL> sourceURLs) Sets the source URLs to use.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.tiles.definition.dao.DefinitionDAO

getDefinition, getDefinitions

Field Detail

sourceURLs

protected List<URL> sourceURLs

Contains the URL objects identifying where configuration data is found.

Since:

2.1.0

lastModifiedDates

protected Map<String,Long> lastModifiedDates

Contains the dates that the URL sources were last modified.

Since:

2.1.0

applicationContext

protected TilesApplicationContext applicationContext

The application context.

Since:

2.1.0

reader

protected DefinitionsReader reader

Reader used to get definitions from the sources.

Since:

2.1.0

Constructor Detail

BaseLocaleUrlDefinitionDAO

public BaseLocaleUrlDefinitionDAO()

Constructor.

Method Detail

setSourceURLs

public void setSourceURLs(List<URL> sourceURLs)

Sets the source URLs to use.

Specified by:

setSourceURLs in interface URLReader

Parameters:

sourceURLs - The source URLs.

setReader

public void setReader(DefinitionsReader reader)

Sets the definitions reader that will read the URLs.

Specified by:

setReader in interface URLReader

Parameters:

reader - The definitions reader.

addSourceURL

public void addSourceURL(URL sourceURL)

Adds a single URL to use.

Specified by:

addSourceURL in interface URLReader

Parameters:

sourceURL - The source URL to add.

setApplicationContext

public void setApplicationContext(TilesApplicationContext applicationContext)

Sets the Tiles application context.

Specified by:

setApplicationContext in interface TilesApplicationContextAware

Parameters:

applicationContext - The Tiles application context.

init

public void init(Map<String,String> params)

Initializes the object.

Specified by:

init in interface Initializable

Parameters:

params - The map of parameters.

refreshRequired

public boolean refreshRequired()

Indicates whether the sources are out of date and need to be reloaded.

Specified by:

refreshRequired in interface RefreshMonitor

Returns:

true if the sources need to be refreshed.

identifySources

protected void identifySources(Map<String,String> initParameters)

Detects the sources to load.

Parameters:

initParameters - The initialization parameters.

Since:

2.1.0

getResourceString

protected String getResourceString(Map<String,String> parms)

Derive the resource string from the initialization parameters. If no parameter DefinitionsFactory.DEFINITIONS_CONFIG is available, attempts to retrieve BasicTilesContainer.DEFINITIONS_CONFIG and LEGACY_DEFINITIONS_CONFIG. If neither are available, returns "/WEB-INF/tiles.xml".

Parameters:

parms - The initialization parameters.

Returns:

resource string to be parsed.

getResourceNames

protected String[] getResourceNames(String resourceString)

Parse the resourceString into a list of resource paths which can be loaded by the application context.

Parameters:

resourceString - comma separated resources

Returns:

parsed resources

loadDefinitionsFromURL

protected Map<String,Definition> loadDefinitionsFromURL(URL url)

Loads definitions from an URL without loading from "parent" URLs.

Parameters:

url - The URL to read.

Returns:

The definition map that has been read.