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Add validation module for QuestionnaireAnswers
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hapi-fhir-base/src/main/java/ca/uhn/fhir/validation/IResourceLoader.java
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| package ca.uhn.fhir.validation; | ||
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| import org.hl7.fhir.instance.model.api.IBaseResource; | ||
| import org.hl7.fhir.instance.model.api.IIdType; | ||
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| import ca.uhn.fhir.rest.server.exceptions.ResourceNotFoundException; | ||
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| public interface IResourceLoader { | ||
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| /** | ||
| * Load the latest version of a given resource | ||
| * | ||
| * @param theType | ||
| * The type of the resource to load | ||
| * @param theId | ||
| * The ID of the resource to load | ||
| * @throws ResourceNotFoundException | ||
| * If the resource is not known | ||
| */ | ||
| public <T extends IBaseResource> T load(Class<T> theType, IIdType theId) throws ResourceNotFoundException; | ||
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| } |
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51
...hir-structures-hl7org-dstu2/src/main/java/ca/uhn/fhir/validation/BaseValidatorBridge.java
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| package ca.uhn.fhir.validation; | ||
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| import java.util.List; | ||
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| import org.hl7.fhir.instance.model.api.IBaseResource; | ||
| import org.hl7.fhir.instance.validation.ValidationMessage; | ||
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| import ca.uhn.fhir.model.api.Bundle; | ||
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| /** | ||
| * Base class for a bridge between the RI validation tools and HAPI | ||
| */ | ||
| abstract class BaseValidatorBridge implements IValidator { | ||
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| public BaseValidatorBridge() { | ||
| super(); | ||
| } | ||
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| private void doValidate(IValidationContext<?> theCtx) { | ||
| List<ValidationMessage> messages = validate(theCtx); | ||
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| for (ValidationMessage riMessage : messages) { | ||
| SingleValidationMessage hapiMessage = new SingleValidationMessage(); | ||
| if (riMessage.getCol() != -1) { | ||
| hapiMessage.setLocationCol(riMessage.getCol()); | ||
| } | ||
| if (riMessage.getLine() != -1) { | ||
| hapiMessage.setLocationLine(riMessage.getLine()); | ||
| } | ||
| hapiMessage.setLocationString(riMessage.getLocation()); | ||
| hapiMessage.setMessage(riMessage.getMessage()); | ||
| if (riMessage.getLevel() != null) { | ||
| hapiMessage.setSeverity(ResultSeverityEnum.fromCode(riMessage.getLevel().toCode())); | ||
| } | ||
| theCtx.addValidationMessage(hapiMessage); | ||
| } | ||
| } | ||
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| protected abstract List<ValidationMessage> validate(IValidationContext<?> theCtx); | ||
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| @Override | ||
| public void validateBundle(IValidationContext<Bundle> theCtx) { | ||
| doValidate(theCtx); | ||
| } | ||
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| @Override | ||
| public void validateResource(IValidationContext<IBaseResource> theCtx) { | ||
| doValidate(theCtx); | ||
| } | ||
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| } |
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139 changes: 139 additions & 0 deletions
139
...-hl7org-dstu2/src/main/java/ca/uhn/fhir/validation/FhirQuestionnaireAnswersValidator.java
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| package ca.uhn.fhir.validation; | ||
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| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.List; | ||
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| import org.hl7.fhir.instance.model.OperationOutcome.IssueSeverity; | ||
| import org.hl7.fhir.instance.model.Questionnaire; | ||
| import org.hl7.fhir.instance.model.QuestionnaireAnswers; | ||
| import org.hl7.fhir.instance.model.ValueSet; | ||
| import org.hl7.fhir.instance.model.api.IBaseResource; | ||
| import org.hl7.fhir.instance.model.api.IIdType; | ||
| import org.hl7.fhir.instance.utils.WorkerContext; | ||
| import org.hl7.fhir.instance.validation.QuestionnaireAnswersValidator; | ||
| import org.hl7.fhir.instance.validation.ValidationMessage; | ||
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| import ca.uhn.fhir.context.RuntimeResourceDefinition; | ||
| import ca.uhn.fhir.parser.IParser; | ||
| import ca.uhn.fhir.rest.server.exceptions.ResourceNotFoundException; | ||
| import ca.uhn.fhir.util.ResourceReferenceInfo; | ||
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| public class FhirQuestionnaireAnswersValidator extends BaseValidatorBridge { | ||
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| private static final org.slf4j.Logger ourLog = org.slf4j.LoggerFactory.getLogger(FhirQuestionnaireAnswersValidator.class); | ||
| private IResourceLoader myResourceLoader; | ||
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| /** | ||
| * Set the class which will be used to load linked resources from the <code>QuestionnaireAnswers</code>. Specifically, if the <code>QuestionnaireAnswers</code> refers to an external (non-contained) | ||
| * <code>Questionnaire</code>, or to any external (non-contained) <code>ValueSet</code>, the resource loader will be used to fetch those resources during the validation. | ||
| * | ||
| * @param theResourceLoader | ||
| * The resourceloader to use. May be <code>null</code> if no resource loader should be used (in which case any <code>QuestionaireAnswers</code> with external references will fail to | ||
| * validate.) | ||
| */ | ||
| public void setResourceLoader(IResourceLoader theResourceLoader) { | ||
| myResourceLoader = theResourceLoader; | ||
| } | ||
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| @Override | ||
| protected List<ValidationMessage> validate(IValidationContext<?> theCtx) { | ||
| Object resource = theCtx.getResource(); | ||
| if (!(theCtx.getResource() instanceof IBaseResource)) { | ||
| ourLog.debug("Not validating object of type {}", theCtx.getResource().getClass()); | ||
| return Collections.emptyList(); | ||
| } | ||
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| if (resource instanceof QuestionnaireAnswers) { | ||
| return doValidate(theCtx, (QuestionnaireAnswers) resource); | ||
| } | ||
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| RuntimeResourceDefinition def = theCtx.getFhirContext().getResourceDefinition((IBaseResource) resource); | ||
| if ("QuestionnaireAnswers".equals(def.getName()) == false) { | ||
| return Collections.emptyList(); | ||
| } | ||
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| /* | ||
| * If we have a non-RI structure, convert it | ||
| */ | ||
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| IParser p = theCtx.getFhirContext().newJsonParser(); | ||
| String string = p.encodeResourceToString((IBaseResource) resource); | ||
| QuestionnaireAnswers qa = p.parseResource(QuestionnaireAnswers.class, string); | ||
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| return doValidate(theCtx, qa); | ||
| } | ||
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| private List<ValidationMessage> doValidate(IValidationContext<?> theValCtx, QuestionnaireAnswers theResource) { | ||
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| WorkerContext workerCtx = new WorkerContext(); | ||
| ArrayList<ValidationMessage> retVal = new ArrayList<ValidationMessage>(); | ||
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| if (!loadReferences(theResource, workerCtx, theValCtx, retVal)) { | ||
| return retVal; | ||
| } | ||
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| QuestionnaireAnswersValidator val = new QuestionnaireAnswersValidator(workerCtx); | ||
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| val.validate(retVal, theResource); | ||
| return retVal; | ||
| } | ||
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| private boolean loadReferences(IBaseResource theResource, WorkerContext theWorkerCtx, IValidationContext<?> theValCtx, ArrayList<ValidationMessage> theMessages) { | ||
| List<ResourceReferenceInfo> refs = theValCtx.getFhirContext().newTerser().getAllResourceReferences(theResource); | ||
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| List<IBaseResource> newResources = new ArrayList<IBaseResource>(); | ||
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| for (ResourceReferenceInfo nextRefInfo : refs) { | ||
| IIdType nextRef = nextRefInfo.getResourceReference().getReferenceElement(); | ||
| String resourceType = nextRef.getResourceType(); | ||
| if ("ValueSet".equals(resourceType)) { | ||
| if (!theWorkerCtx.getValueSets().containsKey(nextRef.getValue())) { | ||
| ValueSet resource = tryToLoad(ValueSet.class, nextRef, theMessages); | ||
| if (resource == null) { | ||
| return false; | ||
| } | ||
| theWorkerCtx.getValueSets().put(nextRef.getValue(), resource); | ||
| newResources.add(resource); | ||
| } | ||
| } else if ("Questionnaire".equals(resourceType)) { | ||
| if (!theWorkerCtx.getQuestionnaires().containsKey(nextRef.getValue())) { | ||
| Questionnaire resource = tryToLoad(Questionnaire.class, nextRef, theMessages); | ||
| if (resource == null) { | ||
| return false; | ||
| } | ||
| theWorkerCtx.getQuestionnaires().put(nextRef.getValue(), resource); | ||
| newResources.add(resource); | ||
| } | ||
| } | ||
| } | ||
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| for (IBaseResource nextAddedResource : newResources) { | ||
| boolean outcome = loadReferences(nextAddedResource, theWorkerCtx, theValCtx, theMessages); | ||
| if (!outcome) { | ||
| return false; | ||
| } | ||
| } | ||
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| return true; | ||
| } | ||
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| private <T extends IBaseResource> T tryToLoad(Class<T> theType, IIdType theReference, List<ValidationMessage> theMessages) { | ||
| if (myResourceLoader == null) { | ||
| theMessages.add(new ValidationMessage().setLevel(IssueSeverity.FATAL).setMessage("No resource loader present, could not load " + theReference)); | ||
| return null; | ||
| } | ||
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| try { | ||
| T retVal = myResourceLoader.load(theType, theReference); | ||
| if (retVal == null) { | ||
| throw new IllegalStateException("ResourceLoader returned null. This is a bug with the resourceloader. Reference was: " + theReference); | ||
| } | ||
| return retVal; | ||
| } catch (ResourceNotFoundException e) { | ||
| theMessages.add(new ValidationMessage().setLevel(IssueSeverity.FATAL).setMessage("Reference could not be found: " + theReference)); | ||
| return null; | ||
| } | ||
| } | ||
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| } |
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