package org.jtwig.render.node.renderer;
import org.jtwig.environment.Environment;
import org.jtwig.model.tree.IncludeNode;
import org.jtwig.render.RenderRequest;
import org.jtwig.render.RenderResourceRequest;
import org.jtwig.render.RenderResourceService;
import org.jtwig.render.expression.CalculateExpressionService;
import org.jtwig.renderable.Renderable;
import org.jtwig.renderable.impl.EmptyRenderable;
import org.jtwig.resource.ResourceService;
import org.jtwig.resource.exceptions.ResourceNotFoundException;
import org.jtwig.resource.metadata.ResourceMetadata;
import org.jtwig.resource.reference.ResourceReference;
import org.jtwig.util.ErrorMessageFormatter;
import org.jtwig.value.WrappedCollection;
import org.jtwig.value.convert.Converter;
public class IncludeNodeRender implements NodeRender<IncludeNode> {
@Override
public Renderable render(RenderRequest renderRequest, IncludeNode node) {
Environment environment = renderRequest.getEnvironment();
CalculateExpressionService calculateExpressionService = environment.getRenderEnvironment().getCalculateExpressionService();
ResourceService resourceService = environment.getResourceEnvironment().getResourceService();
Object path = calculateExpressionService.calculate(renderRequest, node.getResourceExpression());
ResourceReference current = renderRequest.getRenderContext().getCurrent(ResourceReference.class);
String relativePath = environment.getValueEnvironment().getStringConverter().convert(path);
ResourceReference newReference = resourceService.resolve(current, relativePath);
ResourceMetadata resourceMetadata = resourceService.loadMetadata(newReference);
if (resourceMetadata.exists()) {
Converter<WrappedCollection> mapConverter = environment.getValueEnvironment().getCollectionConverter();
RenderResourceService renderResourceService = environment.getRenderEnvironment().getRenderResourceService();
Object mapValue = calculateExpressionService.calculate(renderRequest, node.getMapExpression());
WrappedCollection includeModel = mapConverter.convert(mapValue).or(WrappedCollection.empty());
return renderResourceService.render(renderRequest, new RenderResourceRequest(newReference,
true, !node.isInheritModel(),
includeModel
));
} else {
if (node.isIgnoreMissing()) {
return EmptyRenderable.instance();
} else {
throw new ResourceNotFoundException(ErrorMessageFormatter.errorMessage(node.getPosition(), String.format("Resource '%s' (resolved to '%s') not found", path, newReference)));
}
}
}
}