NAID-3122 - Add confidentialityCode support to AllergyIntoleranceMapper.java

CHANGELOG.md

@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+### Added
+* The AllergyIntoleranceMapper has been enhanced to support the redaction fix. If an Allergy Intolerance record includes a confidentialityCode, the meta.security field of the corresponding FHIR resource will now be appropriately populated.
+
 ## [3.0.0] - 2024-07-02
 
 ### Removed

gp2gp-translator/src/main/java/uk/nhs/adaptors/pss/translator/mapper/AllergyIntoleranceMapper.java

@@ -24,6 +24,7 @@
 import org.hl7.fhir.dstu3.model.DateTimeType;
 import org.hl7.fhir.dstu3.model.Encounter;
 import org.hl7.fhir.dstu3.model.Extension;
+import org.hl7.fhir.dstu3.model.Meta;
 import org.hl7.fhir.dstu3.model.Patient;
 import org.hl7.fhir.dstu3.model.Reference;
 import org.hl7.v3.CD;
@@ -40,6 +41,7 @@
 import lombok.RequiredArgsConstructor;
 import uk.nhs.adaptors.pss.translator.util.DegradedCodeableConcepts;
 import uk.nhs.adaptors.pss.translator.util.ResourceFilterUtil;
+import uk.nhs.adaptors.pss.translator.util.builder.MetaBuilder;
 
 @Service
 @RequiredArgsConstructor(onConstructor = @__(@Autowired))
@@ -88,14 +90,21 @@ private AllergyIntolerance mapAllergyIntolerance(RCMRMT030101UKEhrComposition eh
                 .getId()
                 .getRoot();
 
+        final Meta meta = new MetaBuilder()
+            .withInitialMeta(() -> generateMeta(META_PROFILE))
+            .withSecurityIfConfidentialityCodesPresent(
+                ehrComposition.getConfidentialityCode(),
+                observationStatement.getConfidentialityCode()
+            ).build();
+
         allergyIntolerance
             .addCategory(getCategory(compoundStatement))
             .setAssertedDateElement(getAssertedDateElement(compoundStatement.getAvailabilityTime(), ehrComposition))
             .setPatient(new Reference(patient))
             .setClinicalStatus(ACTIVE)
             .setVerificationStatus(UNCONFIRMED)
             .addIdentifier(buildIdentifier(id, practiseCode))
-            .setMeta(generateMeta(META_PROFILE))
+            .setMeta(meta)
             .setId(id);
 
         buildOnset(compoundStatement, allergyIntolerance);

gp2gp-translator/src/main/java/uk/nhs/adaptors/pss/translator/util/ConfidentialityUtil.java

@@ -0,0 +1,44 @@
+package uk.nhs.adaptors.pss.translator.util;
+
+import org.hl7.fhir.dstu3.model.Coding;
+import org.hl7.fhir.dstu3.model.Meta;
+import org.hl7.v3.CV;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Optional;
+
+public final class ConfidentialityUtil {
+
+    private ConfidentialityUtil() { }
+
+    private static final Coding CONFIDENTIALITY_CODING = new Coding()
+        .setSystem("http://hl7.org/fhir/v3/ActCode")
+        .setCode("NOPAT")
+        .setDisplay("no disclosure to patient, family or caregivers without attending provider's authorization");
+
+    public static Meta addSecurityToMetaIfConfidentialityCodesPresent(Collection<Optional<CV>> confidentialityCodes, Meta meta) {
+        final boolean isCodePresent = confidentialityCodes.stream()
+            .filter(Optional::isPresent)
+            .map(Optional::get)
+            .anyMatch(ConfidentialityUtil::isNopat);
+
+        if (isCodePresent) {
+            return ConfidentialityUtil.addConfidentialityToMeta(meta);
+        }
+
+        return meta;
+    }
+
+    private static Meta addConfidentialityToMeta(final Meta meta) {
+        return meta.setSecurity(
+            Collections.singletonList(
+                CONFIDENTIALITY_CODING
+            )
+        );
+    }
+
+    private static boolean isNopat(CV coding) {
+        return coding.getCode().equals("NOPAT");
+    }
+}

gp2gp-translator/src/main/java/uk/nhs/adaptors/pss/translator/util/builder/MetaBuilder.java

@@ -0,0 +1,33 @@
+package uk.nhs.adaptors.pss.translator.util.builder;
+
+import org.hl7.fhir.dstu3.model.Meta;
+import org.hl7.v3.CV;
+import uk.nhs.adaptors.pss.translator.util.ConfidentialityUtil;
+
+import java.util.Arrays;
+import java.util.Objects;
+import java.util.Optional;
+import java.util.function.Supplier;
+
+public final class MetaBuilder {
+    private Meta meta;
+
+    public MetaBuilder withInitialMeta(final Supplier<Meta> metaSupplier) {
+        this.meta = Objects.requireNonNull(metaSupplier.get());
+        return this;
+    }
+
+    @SafeVarargs
+    public final MetaBuilder withSecurityIfConfidentialityCodesPresent(Optional<CV>... confidentialityCodes) {
+        this.meta = ConfidentialityUtil.addSecurityToMetaIfConfidentialityCodesPresent(
+            Arrays.asList(confidentialityCodes),
+            this.meta
+        );
+
+        return this;
+    }
+
+    public Meta build() {
+        return this.meta.copy();
+    }
+}