Examples with DeferredExecutionHandler org.gradle.internal.execution.DeferredExecutionHandler used on opensource projects

Example 1 with DeferredExecutionHandler

use of org.gradle.internal.execution.DeferredExecutionHandler in project gradle by gradle.

the class DefaultTransformerInvocationFactory method createInvocation.

@Override
public CacheableInvocation<ImmutableList<File>> createInvocation(Transformer transformer, File inputArtifact, ArtifactTransformDependencies dependencies, TransformationSubject subject, InputFingerprinter inputFingerprinter) {
    ProjectInternal producerProject = determineProducerProject(subject);
    TransformationWorkspaceServices workspaceServices = determineWorkspaceServices(producerProject);
    UnitOfWork execution;
    if (producerProject == null) {
        execution = new ImmutableTransformerExecution(transformer, inputArtifact, dependencies, buildOperationExecutor, fileCollectionFactory, inputFingerprinter, fileSystemAccess, workspaceServices);
    } else {
        execution = new MutableTransformerExecution(transformer, inputArtifact, dependencies, buildOperationExecutor, fileCollectionFactory, inputFingerprinter, workspaceServices);
    }
    return executionEngine.createRequest(execution).withIdentityCache(workspaceServices.getIdentityCache()).getOrDeferExecution(new DeferredExecutionHandler<TransformationResult, CacheableInvocation<ImmutableList<File>>>() {

        @Override
        public CacheableInvocation<ImmutableList<File>> processCachedOutput(Try<TransformationResult> cachedOutput) {
            return CacheableInvocation.cached(mapResult(cachedOutput));
        }

        @Override
        public CacheableInvocation<ImmutableList<File>> processDeferredOutput(Supplier<Try<TransformationResult>> deferredExecution) {
            return CacheableInvocation.nonCached(() -> fireTransformListeners(transformer, subject, () -> mapResult(deferredExecution.get())));
        }

        @Nonnull
        private Try<ImmutableList<File>> mapResult(Try<TransformationResult> cachedOutput) {
            return cachedOutput.map(result -> result.resolveOutputsForInputArtifact(inputArtifact)).mapFailure(failure -> new TransformException(String.format("Execution failed for %s.", execution.getDisplayName()), failure));
        }
    });
}