org.apache.tapestry5.internal.services.assets
Class StackAssetRequestHandler

java.lang.Object
  org.apache.tapestry5.internal.services.assets.StackAssetRequestHandler

All Implemented Interfaces:

AssetRequestHandler, InvalidationListener

public class StackAssetRequestHandler
extends Object
implements AssetRequestHandler, InvalidationListener

Constructor Summary

StackAssetRequestHandler(StreamableResourceSource streamableResourceSource, JavaScriptStackSource javascriptStackSource, LocalizationSetter localizationSetter, ResponseCompressionAnalyzer compressionAnalyzer, ResourceStreamer resourceStreamer, ResourceMinimizer resourceMinimizer, OperationTracker tracker, boolean minificationEnabled, ResourceChangeTracker resourceChangeTracker)

Method Summary

boolean	handleAssetRequest(Request request, Response response, String extraPath) Given a request targeted (via the handler id) to the specific handler, process the request.
void	listenToInvalidations(ResourceChangeTracker resourceChangeTracker)
void	objectWasInvalidated() Notified by the ResourceChangeTracker when (any) resource files change; the internal caches are cleared.

Methods inherited from class java.lang.Object

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

Constructor Detail

StackAssetRequestHandler

public StackAssetRequestHandler(StreamableResourceSource streamableResourceSource,
                                JavaScriptStackSource javascriptStackSource,
                                LocalizationSetter localizationSetter,
                                ResponseCompressionAnalyzer compressionAnalyzer,
                                ResourceStreamer resourceStreamer,
                                ResourceMinimizer resourceMinimizer,
                                OperationTracker tracker,
                                @Symbol(value="tapestry.enable-minification")
                                boolean minificationEnabled,
                                ResourceChangeTracker resourceChangeTracker)

Method Detail

listenToInvalidations

@PostInjection
public void listenToInvalidations(ResourceChangeTracker resourceChangeTracker)

handleAssetRequest

public boolean handleAssetRequest(Request request,
                                  Response response,
                                  String extraPath)
                           throws IOException

Description copied from interface: AssetRequestHandler

Given a request targeted (via the handler id) to the specific handler, process the request. The handler is responsible for processing the request, sending back either a bytestream (via Response.getOutputStream(String)) or an error response (via Response.sendError(int, String)). It is the handler's responsibility to allow for client-side caching (possibly sending an HttpServletResponse.SC_NOT_MODIFIED response).

The handler should return true if it provided a response. If the handler returns false, this indicates that the extra path did not identify a known asset (virtual or otherwise) and the AssetDispatcher service should send a HttpServletResponse.SC_NOT_FOUND response.

Specified by:

handleAssetRequest in interface AssetRequestHandler

Parameters:

request - incoming asset request

response - used to send a response to client

extraPath - additional path to identify the specific asset

Returns:

true if request handler, false if asset not found

Throws:

IOException

objectWasInvalidated

public void objectWasInvalidated()

Notified by the ResourceChangeTracker when (any) resource files change; the internal caches are cleared.

Specified by:

objectWasInvalidated in interface InvalidationListener