content: /*
   * Copyright © 2018-2025 Commonwealth Scientific and Industrial Research
   * Organisation (CSIRO) ABN 41 687 119 230.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package au.csiro.pathling.test.yaml.resolver;
  
  import au.csiro.pathling.fhirpath.context.ResourceResolver;
  import au.csiro.pathling.fhirpath.definition.fhir.FhirDefinitionContext;
  import au.csiro.pathling.fhirpath.definition.fhir.FhirResourceTag;
  import au.csiro.pathling.fhirpath.execution.DefaultResourceResolver;
  import jakarta.annotation.Nonnull;
  import java.util.List;
  import java.util.function.Function;
  import lombok.Value;
  import org.apache.spark.sql.Dataset;
  import org.apache.spark.sql.Row;
  import org.hl7.fhir.instance.model.api.IBaseResource;
  import org.hl7.fhir.r4.model.Enumerations.ResourceType;
  
  /**
   * Factory for creating resource resolvers from HAPI FHIR resources. This implementation handles the
   * conversion of HAPI FHIR resource objects into a format suitable for FHIRPath expression
   * evaluation.
   */
  @Value(staticConstructor = "of")
  public class HapiResolverFactory implements Function<RuntimeContext, ResourceResolver> {
  
    @Nonnull
    IBaseResource resource;
  
    @Override
    @Nonnull
    public ResourceResolver apply(final RuntimeContext rt) {
      final Dataset<Row> resourceDS = rt.getSpark().createDataset(List.of(resource),
          rt.getFhirEncoders().of(resource.fhirType())).toDF();
  
      return DefaultResourceResolver.of(
          FhirResourceTag.of(ResourceType.fromCode(resource.fhirType())),
          FhirDefinitionContext.of(rt.getFhirEncoders().getContext()),
          resourceDS
      );
    }
  }
  