com.yahoo.processing.handler

Class AbstractProcessingHandler<COMPONENT extends com.yahoo.processing.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:

com.yahoo.jdisc.handler.RequestHandler, com.yahoo.jdisc.SharedResource

Direct Known Subclasses:

ProcessingHandler

public abstract class AbstractProcessingHandler<COMPONENT extends com.yahoo.processing.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

Since:

5.1.6

Author:

bratseth, tonyv, Steinar Knutsen

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	AbstractProcessingHandler.FreezeListener

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

Field Summary

Fields

Modifier and Type	Field and Description
private com.yahoo.processing.execution.chain.ChainRegistry<COMPONENT>	chainRegistry
static String	DEFAULT_RENDERER_ID
private Renderer	defaultRenderer
private static com.yahoo.processing.request.CompoundName	freezeListenerKey
private com.yahoo.component.provider.ComponentRegistry<Renderer>	renderers
private Executor	renderingExecutor

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

CONTENT_TYPE, DATE, log

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

metric

Fields inherited from interface com.yahoo.jdisc.SharedResource

DEBUG, SYSTEM_PROPERTY_NAME_DEBUG

Constructor Summary

Constructors

Constructor and Description
AbstractProcessingHandler(com.yahoo.processing.execution.chain.ChainRegistry<COMPONENT> chainRegistry, com.yahoo.component.provider.ComponentRegistry<Renderer> renderers, Executor executor, com.yahoo.container.logging.AccessLog accessLog)
AbstractProcessingHandler(com.yahoo.processing.execution.chain.ChainRegistry<COMPONENT> chainRegistry, com.yahoo.component.provider.ComponentRegistry<Renderer> renderers, Executor executor, com.yahoo.container.logging.AccessLog accessLog, com.yahoo.jdisc.Metric metric)
AbstractProcessingHandler(com.yahoo.container.core.ChainsConfig processingChainsConfig, com.yahoo.component.provider.ComponentRegistry<COMPONENT> chainedComponents, com.yahoo.component.provider.ComponentRegistry<Renderer> renderers, Executor executor, com.yahoo.container.logging.AccessLog accessLog)
AbstractProcessingHandler(com.yahoo.container.core.ChainsConfig processingChainsConfig, com.yahoo.component.provider.ComponentRegistry<COMPONENT> chainedComponents, com.yahoo.component.provider.ComponentRegistry<Renderer> renderers, Executor executor, com.yahoo.container.logging.AccessLog accessLog, com.yahoo.jdisc.Metric metric)

Method Summary

Modifier and Type	Method and Description
private static <COMPONENT extends com.yahoo.component.chain.ChainedComponent> com.yahoo.processing.execution.chain.ChainRegistry<COMPONENT>	createChainRegistry(com.yahoo.container.core.ChainsConfig processingChainsConfig, com.yahoo.component.provider.ComponentRegistry<COMPONENT> availableComponents)
com.yahoo.processing.execution.Execution	createExecution(com.yahoo.component.chain.Chain<COMPONENT> chain, com.yahoo.processing.Request processingRequest)
com.yahoo.processing.execution.chain.ChainRegistry<COMPONENT>	getChainRegistry()
Renderer<com.yahoo.processing.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, com.yahoo.jdisc.handler.ContentChannel channel) Override this rather than handle(request) to be able to write to the channel before returning from this method.
private static Renderer<com.yahoo.processing.Response>	perRenderingCopy(Renderer<com.yahoo.processing.Response> renderer)
private void	populate(String prefixName, Map<String,?> parameters, com.yahoo.processing.request.Properties properties)
private String	resolveChainId(com.yahoo.processing.request.Properties properties)
private static Renderer	selectRenderer(com.yahoo.processing.Request processingRequest, com.yahoo.component.provider.ComponentRegistry<Renderer> renderers, Renderer defaultRenderer)

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

createLoggingCompletionHandler, testOnlyContext

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

addDateHeader, asHttpRequest, handleRequest

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

getTimeout, handleRequest

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

handleTimeout

Methods inherited from class com.yahoo.jdisc.AbstractResource

currentState, destroy, 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.jdisc.SharedResource

refer, release

Field Detail

freezeListenerKey

private static final com.yahoo.processing.request.CompoundName freezeListenerKey

DEFAULT_RENDERER_ID

public static final String DEFAULT_RENDERER_ID

See Also:

Constant Field Values

renderingExecutor

private final Executor renderingExecutor

chainRegistry

private com.yahoo.processing.execution.chain.ChainRegistry<COMPONENT extends com.yahoo.processing.Processor> chainRegistry

renderers

private final com.yahoo.component.provider.ComponentRegistry<Renderer> renderers

defaultRenderer

private final Renderer defaultRenderer

Constructor Detail

AbstractProcessingHandler

public AbstractProcessingHandler(com.yahoo.processing.execution.chain.ChainRegistry<COMPONENT> chainRegistry,
                                 com.yahoo.component.provider.ComponentRegistry<Renderer> renderers,
                                 Executor executor,
                                 com.yahoo.container.logging.AccessLog accessLog,
                                 com.yahoo.jdisc.Metric metric)

AbstractProcessingHandler

public AbstractProcessingHandler(com.yahoo.processing.execution.chain.ChainRegistry<COMPONENT> chainRegistry,
                                 com.yahoo.component.provider.ComponentRegistry<Renderer> renderers,
                                 Executor executor,
                                 com.yahoo.container.logging.AccessLog accessLog)

AbstractProcessingHandler

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

AbstractProcessingHandler

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

Method Detail

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,
                           com.yahoo.jdisc.handler.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 com.yahoo.processing.execution.Execution createExecution(com.yahoo.component.chain.Chain<COMPONENT> chain,
                                                                com.yahoo.processing.Request processingRequest)

getChainRegistry

public com.yahoo.processing.execution.chain.ChainRegistry<COMPONENT> getChainRegistry()

getRenderers

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

getRendererCopy

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

For internal use only

perRenderingCopy

private static Renderer<com.yahoo.processing.Response> perRenderingCopy(Renderer<com.yahoo.processing.Response> renderer)

selectRenderer

private static Renderer selectRenderer(com.yahoo.processing.Request processingRequest,
                                       com.yahoo.component.provider.ComponentRegistry<Renderer> renderers,
                                       Renderer defaultRenderer)

createChainRegistry

private static <COMPONENT extends com.yahoo.component.chain.ChainedComponent> com.yahoo.processing.execution.chain.ChainRegistry<COMPONENT> createChainRegistry(com.yahoo.container.core.ChainsConfig processingChainsConfig,
                                                                                                                                                                com.yahoo.component.provider.ComponentRegistry<COMPONENT> availableComponents)

resolveChainId

private String resolveChainId(com.yahoo.processing.request.Properties properties)

populate

private void populate(String prefixName,
                      Map<String,?> parameters,
                      com.yahoo.processing.request.Properties properties)