Package net.finmath.smartcontracts.representablestate.cache

Class CachedXsltTransformationService

java.lang.Object

net.finmath.smartcontracts.representablestate.cache.CachedXsltTransformationService

public final class CachedXsltTransformationService
extends Object

Opt-in cache boundary for a block-pinned render and its XSLT post-processing.

The XSLT specification is part of the key. Inline and same-chain Web3 stylesheets are tied to the rendered snapshot. HTTP(S) stylesheet URLs may be mutable; their freshness is therefore bounded by cache expiry rather than treated as permanent.

Constructor Summary

Constructors

Constructor	Description
CachedXsltTransformationService(CachedRenderingService renderingService, XsltPostProcessor postProcessor, ExternalXsltResourceLoader externalResourceLoader, RendererCacheOptions options)	Creates a cached render-and-transform facade.
CachedXsltTransformationService(CachedRenderingService renderingService, XsltPostProcessor postProcessor, ExternalXsltResourceLoader externalResourceLoader, RendererCacheOptions options, EvmSnapshotVerifier snapshotVerifier)	Creates a render-and-transform facade with a final canonicality check.

Method Summary

Modifier and Type	Method	Description
void	clear()	Clears all transformed documents retained by this facade.
XsltPostProcessor.TransformationResult	transform(EvmSnapshot snapshot, String contractAddress, String xslt)	Renders and transforms one contract snapshot.

Methods inherited from class java.lang.Object

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

Constructor Details

CachedXsltTransformationService

public CachedXsltTransformationService(CachedRenderingService renderingService,
 XsltPostProcessor postProcessor,
 ExternalXsltResourceLoader externalResourceLoader,
 RendererCacheOptions options)

Creates a cached render-and-transform facade.

This convenience overload does not perform a final transformation snapshot verification. Use the five-argument constructor when the caller does not verify canonicality externally.

Parameters:

renderingService - Cached renderer using the same snapshot identity.

postProcessor - Secure XSLT post-processor.

externalResourceLoader - Policy-controlled stylesheet loader.

options - Cache enablement, bounds, and expiry.

CachedXsltTransformationService

public CachedXsltTransformationService(CachedRenderingService renderingService,
 XsltPostProcessor postProcessor,
 ExternalXsltResourceLoader externalResourceLoader,
 RendererCacheOptions options,
 EvmSnapshotVerifier snapshotVerifier)

Creates a render-and-transform facade with a final canonicality check.

Parameters:

renderingService - Renderer using the same snapshot identity.

postProcessor - Secure XSLT post-processor.

externalResourceLoader - Policy-controlled stylesheet loader.

options - Cache enablement, bounds, and expiry.

snapshotVerifier - Check invoked after a newly completed transformation and before cache admission.

Method Details

transform

public XsltPostProcessor.TransformationResult transform(EvmSnapshot snapshot,
 String contractAddress,
 String xslt)
                                                 throws Exception

Renders and transforms one contract snapshot.

Parameters:

snapshot - Fixed chain and block identity.

contractAddress - Contract to render.

xslt - Absolute stylesheet URI or explicit inline-XPath specification.

Returns:

Completed transformation.

Throws:

Exception - If rendering, stylesheet loading, or transformation fails.

clear

public void clear()

Clears all transformed documents retained by this facade.