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org.apache.lenya.ac.cache
Class SourceCacheImpl

java.lang.Object
  org.apache.avalon.framework.logger.AbstractLogEnabled
      org.apache.lenya.ac.cache.SourceCacheImpl

All Implemented Interfaces:

org.apache.avalon.framework.activity.Disposable, org.apache.avalon.framework.component.Component, org.apache.avalon.framework.logger.LogEnabled, org.apache.avalon.framework.service.Serviceable, SourceCache

public class SourceCacheImpl
extends org.apache.avalon.framework.logger.AbstractLogEnabled
implements SourceCache, org.apache.avalon.framework.service.Serviceable, org.apache.avalon.framework.activity.Disposable

Basic implementation of a source cache.

Version:

$Id: SourceCacheImpl.java 473841 2006-11-12 00:46:38Z gregor $

Field Summary

static int

CAPACITY

Fields inherited from interface org.apache.lenya.ac.cache.SourceCache

ROLE

Constructor Summary

SourceCacheImpl()
Ctor.

Method Summary

protected java.lang.Object	buildObject(java.lang.String sourceUri, InputStreamBuilder builder) Returns the input stream to read a source from.
void	dispose()
java.lang.Object	get(java.lang.String sourceUri, InputStreamBuilder builder) Returns a cached object or builds a new object when the cached object does not exist or is not up to date.
protected org.apache.commons.collections.map.LRUMap	getCache() Returns the cache.
org.apache.avalon.framework.service.ServiceManager	getManager() Returns the service manager.
org.apache.excalibur.source.SourceResolver	getResolver() Returns the source resolver.
protected org.apache.excalibur.source.SourceValidity	getSourceValidity(java.lang.String sourceUri) Returns the validity of a source.
void	service(org.apache.avalon.framework.service.ServiceManager manager)

Methods inherited from class org.apache.avalon.framework.logger.AbstractLogEnabled

enableLogging, getLogger, setupLogger, setupLogger, setupLogger

Methods inherited from class java.lang.Object

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

Field Detail

CAPACITY

public static final int CAPACITY

See Also:

Constant Field Values

Constructor Detail

SourceCacheImpl

public SourceCacheImpl()

Ctor.

Method Detail

getManager

public org.apache.avalon.framework.service.ServiceManager getManager()

Returns the service manager.

Returns:

A service manager.

getResolver

public org.apache.excalibur.source.SourceResolver getResolver()

Returns the source resolver.

Returns:

A source resolver.

getCache

protected org.apache.commons.collections.map.LRUMap getCache()

Returns the cache.

Returns:

A cache object.

get

public java.lang.Object get(java.lang.String sourceUri,
                            InputStreamBuilder builder)
                     throws CachingException

Description copied from interface: SourceCache

Returns a cached object or builds a new object when the cached object does not exist or is not up to date.

Specified by:

get in interface SourceCache

Parameters:

sourceUri - The URI to build the source from.

builder - The builder to create a new object if needed.

Returns:

An object.

Throws:

CachingException - when something went wrong.

See Also:

SourceCache.get(java.lang.String, org.apache.lenya.ac.cache.InputStreamBuilder)

buildObject

protected java.lang.Object buildObject(java.lang.String sourceUri,
                                       InputStreamBuilder builder)
                                throws java.net.MalformedURLException,
                                       java.io.IOException,
                                       org.apache.excalibur.source.SourceNotFoundException,
                                       BuildException

Returns the input stream to read a source from.

Parameters:

sourceUri - The URI of the source.

builder - The input stream builder that should be used.

Returns:

An object.

Throws:

java.net.MalformedURLException - when an error occurs.

java.io.IOException - when an error occurs.

org.apache.excalibur.source.SourceNotFoundException - when an error occurs.

BuildException - if an error occurs.

getSourceValidity

protected org.apache.excalibur.source.SourceValidity getSourceValidity(java.lang.String sourceUri)
                                                                throws java.net.MalformedURLException,
                                                                       java.io.IOException

Returns the validity of a source.

Parameters:

sourceUri - The URI of the source.

Returns:

A source validity object.

Throws:

java.net.MalformedURLException - when an error occurs.

java.io.IOException - when an error occurs.

service

public void service(org.apache.avalon.framework.service.ServiceManager manager)
             throws org.apache.avalon.framework.service.ServiceException

Specified by:

service in interface org.apache.avalon.framework.service.Serviceable

Throws:

org.apache.avalon.framework.service.ServiceException

See Also:

Serviceable.service(org.apache.avalon.framework.service.ServiceManager)

dispose

public void dispose()

Specified by:

dispose in interface org.apache.avalon.framework.activity.Disposable

See Also:

Disposable.dispose()