Package com.yahoo.processing.handler

Class AbstractProcessingHandler<COMPONENT extends Processor>

java.lang.Object

com.yahoo.jdisc.AbstractResource

com.yahoo.jdisc.handler.AbstractRequestHandler

com.yahoo.container.jdisc.ThreadedRequestHandler

com.yahoo.container.jdisc.ThreadedHttpRequestHandler

com.yahoo.container.jdisc.LoggingRequestHandler

com.yahoo.processing.handler.AbstractProcessingHandler<COMPONENT>

All Implemented Interfaces:

HttpRequestHandler, RequestHandler, SharedResource

Direct Known Subclasses:

ProcessingHandler

public abstract class AbstractProcessingHandler<COMPONENT extends Processor>
extends LoggingRequestHandler

Superclass of handlers invoking some kind of processing chain.

COMPONENT: The type of the processing components of which this executes a chain

Author:

bratseth, Tony Vaagenes, Steinar Knutsen

Nested Class Summary

Nested classes/interfaces inherited from class com.yahoo.container.jdisc.LoggingRequestHandler

LoggingRequestHandler.Context

Nested classes/interfaces inherited from class com.yahoo.container.jdisc.ThreadedHttpRequestHandler

ThreadedHttpRequestHandler.LazyContentChannel

Nested classes/interfaces inherited from interface com.yahoo.jdisc.SharedResource

SharedResource.Debug

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_RENDERER_ID

Fields inherited from class com.yahoo.container.jdisc.ThreadedHttpRequestHandler

CONTENT_TYPE, log

Fields inherited from class com.yahoo.container.jdisc.ThreadedRequestHandler

metric, metricUtil

Fields inherited from interface com.yahoo.jdisc.SharedResource

DEBUG, SYSTEM_PROPERTY_NAME_DEBUG

Constructor Summary

Constructors

Constructor	Description
AbstractProcessingHandler(ChainsConfig processingChainsConfig, com.yahoo.component.provider.ComponentRegistry<COMPONENT> chainedComponents, com.yahoo.component.provider.ComponentRegistry<Renderer> renderers, Executor executor, AccessLog ignored)
AbstractProcessingHandler(ChainsConfig processingChainsConfig, com.yahoo.component.provider.ComponentRegistry<COMPONENT> chainedComponents, com.yahoo.component.provider.ComponentRegistry<Renderer> renderers, Executor executor, AccessLog ignored, Metric metric)
AbstractProcessingHandler(ChainRegistry<COMPONENT> chainRegistry, com.yahoo.component.provider.ComponentRegistry<Renderer> renderers, Executor executor, AccessLog ignored)
AbstractProcessingHandler(ChainRegistry<COMPONENT> chainRegistry, com.yahoo.component.provider.ComponentRegistry<Renderer> renderers, Executor executor, AccessLog ignored, Metric metric)

Method Summary

Modifier and Type	Method	Description
Execution	createExecution(Chain<COMPONENT> chain, Request processingRequest)
ChainRegistry<COMPONENT>	getChainRegistry()
Renderer<Response>	getRendererCopy(com.yahoo.component.ComponentSpecification spec)	For internal use only
com.yahoo.component.provider.ComponentRegistry<Renderer>	getRenderers()
HttpResponse	handle(HttpRequest request)	Throws UnsupportedOperationException: Call handle(request, channel instead)
HttpResponse	handle(HttpRequest request, ContentChannel channel)	Override this rather than handle(request) to be able to write to the channel before returning from this method.

Methods inherited from class com.yahoo.container.jdisc.LoggingRequestHandler

createLoggingCompletionHandler, testOnlyContext

Methods inherited from class com.yahoo.container.jdisc.ThreadedHttpRequestHandler

addDateHeader, asHttpRequest, handleRequest, testContext

Methods inherited from class com.yahoo.container.jdisc.ThreadedRequestHandler

executor, getRequestType, getTimeout, handleRequest, writeErrorResponseOnOverload

Methods inherited from class com.yahoo.jdisc.handler.AbstractRequestHandler

handleTimeout

Methods inherited from class com.yahoo.jdisc.AbstractResource

currentState, destroy, refer, refer, release, retainCount

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.yahoo.container.jdisc.HttpRequestHandler

requestHandlerSpec

Methods inherited from interface com.yahoo.jdisc.handler.RequestHandler

handleRequest, handleTimeout

Methods inherited from interface com.yahoo.jdisc.SharedResource

refer, refer, release

Field Details

DEFAULT_RENDERER_ID

public static final String DEFAULT_RENDERER_ID

See Also:

• Constant Field Values

Constructor Details

AbstractProcessingHandler

public AbstractProcessingHandler(ChainRegistry<COMPONENT> chainRegistry,
 com.yahoo.component.provider.ComponentRegistry<Renderer> renderers,
 Executor executor,
 AccessLog ignored,
 Metric metric)

AbstractProcessingHandler

public AbstractProcessingHandler(ChainRegistry<COMPONENT> chainRegistry,
 com.yahoo.component.provider.ComponentRegistry<Renderer> renderers,
 Executor executor,
 AccessLog ignored)

AbstractProcessingHandler

public AbstractProcessingHandler(ChainsConfig processingChainsConfig,
 com.yahoo.component.provider.ComponentRegistry<COMPONENT> chainedComponents,
 com.yahoo.component.provider.ComponentRegistry<Renderer> renderers,
 Executor executor,
 AccessLog ignored)

AbstractProcessingHandler

@Inject
public AbstractProcessingHandler(ChainsConfig processingChainsConfig,
 com.yahoo.component.provider.ComponentRegistry<COMPONENT> chainedComponents,
 com.yahoo.component.provider.ComponentRegistry<Renderer> renderers,
 Executor executor,
 AccessLog ignored,
 Metric metric)

Method Details

handle

public HttpResponse handle(HttpRequest request)

Throws UnsupportedOperationException: Call handle(request, channel instead)

Specified by:

handle in class ThreadedHttpRequestHandler

Parameters:

request - incoming HTTP request

Returns:

a valid HTTP response for presentation to the user

handle

public HttpResponse handle(HttpRequest request,
 ContentChannel channel)

Description copied from class: ThreadedHttpRequestHandler

Override this rather than handle(request) to be able to write to the channel before returning from this method. This default implementation calls handle(request)

Overrides:

handle in class ThreadedHttpRequestHandler

createExecution

public Execution createExecution(Chain<COMPONENT> chain,
 Request processingRequest)

getChainRegistry

public ChainRegistry<COMPONENT> getChainRegistry()

getRenderers

public com.yahoo.component.provider.ComponentRegistry<Renderer> getRenderers()

getRendererCopy

public Renderer<Response> getRendererCopy(com.yahoo.component.ComponentSpecification spec)

For internal use only