org.broadleafcommerce.common.web.resource

Class AbstractGeneratedResourceHandler

java.lang.Object

org.broadleafcommerce.common.web.resource.AbstractGeneratedResourceHandler

All Implemented Interfaces:

org.springframework.core.Ordered

public abstract class AbstractGeneratedResourceHandler
extends Object
implements org.springframework.core.Ordered

An abstract GeneratedResourceHandler that is capable of responding to a single specified filename and generate contents for that filename. This abstract parent will handle caching of the generated resource.

Author:

Andre Azzolini (apazzolini)

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_ORDER
protected ResourceRequestExtensionManager	extensionManager
protected net.sf.ehcache.Cache	generatedResourceCache
protected static org.apache.commons.logging.Log	LOG
protected StatisticsService	statisticsService
protected StreamingTransactionCapableUtil	transUtil

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor and Description
AbstractGeneratedResourceHandler()

Method Summary

Methods

Modifier and Type	Method and Description
abstract boolean	canHandle(String path)
abstract org.springframework.core.io.Resource	getFileContents(String path, List<org.springframework.core.io.Resource> locations)
protected net.sf.ehcache.Cache	getGeneratedResourceCache()
int	getOrder()
protected org.springframework.core.io.Resource	getRawResource(String path, List<org.springframework.core.io.Resource> locations) This method can be used to read in a resource given a path and at least one resource location
org.springframework.core.io.Resource	getResource(String path, List<org.springframework.core.io.Resource> locations) Attempts to retrive the requested resource from cache.
protected String	getResourceContents(org.springframework.core.io.Resource resource)
abstract boolean	isCachedResourceExpired(GeneratedResource cachedResource, String path, List<org.springframework.core.io.Resource> locations)

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_ORDER

public static final int DEFAULT_ORDER

See Also:

Constant Field Values

LOG

protected static final org.apache.commons.logging.Log LOG

statisticsService

protected StatisticsService statisticsService

transUtil

protected StreamingTransactionCapableUtil transUtil

extensionManager

protected ResourceRequestExtensionManager extensionManager

generatedResourceCache

protected net.sf.ehcache.Cache generatedResourceCache

Constructor Detail

AbstractGeneratedResourceHandler

public AbstractGeneratedResourceHandler()

Method Detail

canHandle

public abstract boolean canHandle(String path)

Parameters:

path -

Returns:

booelean determining whether or not this handler is able to handle the given request

getFileContents

public abstract org.springframework.core.io.Resource getFileContents(String path,
                                                   List<org.springframework.core.io.Resource> locations)

Parameters:

path -

locations -

Returns:

the Resource representing this file

isCachedResourceExpired

public abstract boolean isCachedResourceExpired(GeneratedResource cachedResource,
                              String path,
                              List<org.springframework.core.io.Resource> locations)

Parameters:

cachedResource -

path -

locations -

Returns:

whether or not the given cachedResource needs to be regenerated

getResource

public org.springframework.core.io.Resource getResource(String path,
                                               List<org.springframework.core.io.Resource> locations)

Attempts to retrive the requested resource from cache. If not cached, generates the resource, caches it, and then returns it

Parameters:

request -

location -

Returns:

the generated resource

getRawResource

protected org.springframework.core.io.Resource getRawResource(String path,
                                                  List<org.springframework.core.io.Resource> locations)

This method can be used to read in a resource given a path and at least one resource location

Parameters:

path -

locations -

Returns:

the resource from the file system, classpath, etc, if it exists

getResourceContents

protected String getResourceContents(org.springframework.core.io.Resource resource)
                              throws IOException

Parameters:

resource -

Returns:

the UTF-8 String represetation of the contents of the resource

Throws:

IOException

getGeneratedResourceCache

protected net.sf.ehcache.Cache getGeneratedResourceCache()

getOrder

public int getOrder()

Specified by:

getOrder in interface org.springframework.core.Ordered