Examples with ValueSetExpansionOutcome org.hl7.fhir.r4.terminologies.ValueSetExpander.ValueSetExpansionOutcome used on opensource projects

Example 16 with ValueSetExpansionOutcome

use of org.hl7.fhir.r4.terminologies.ValueSetExpander.ValueSetExpansionOutcome in project org.hl7.fhir.core by hapifhir.

the class BaseWorkerContext method expandVS.

@Override
public ValueSetExpansionComponent expandVS(ConceptSetComponent inc, boolean heirachical) throws TerminologyServiceException {
    ValueSet vs = new ValueSet();
    vs.setCompose(new ValueSetComposeComponent());
    vs.getCompose().getInclude().add(inc);
    ValueSetExpansionOutcome vse = expandVS(vs, true, heirachical);
    ValueSet valueset = vse.getValueset();
    if (valueset == null) {
        throw new TerminologyServiceException("Error Expanding ValueSet: " + vse.getError());
    }
    return valueset.getExpansion();
}

Example 17 with ValueSetExpansionOutcome

use of org.hl7.fhir.r4.terminologies.ValueSetExpander.ValueSetExpansionOutcome in project org.hl7.fhir.core by hapifhir.

the class ProfileUtilities method updateFromDefinition.

private void updateFromDefinition(ElementDefinition dest, ElementDefinition source, String pn, boolean trimDifferential, String purl) throws DefinitionException, FHIRException {
    source.setUserData(GENERATED_IN_SNAPSHOT, true);
    // we start with a clone of the base profile ('dest') and we copy from the profile ('source')
    // over the top for anything the source has
    ElementDefinition base = dest;
    ElementDefinition derived = source;
    derived.setUserData(DERIVATION_POINTER, base);
    // Before applying changes, apply them to what's in the profile
    // TODO: follow Chris's rules
    StructureDefinition profile = source.getType().size() == 1 && source.getTypeFirstRep().hasProfile() ? context.fetchResource(StructureDefinition.class, source.getTypeFirstRep().getProfile()) : null;
    if (profile != null) {
        ElementDefinition e = profile.getSnapshot().getElement().get(0);
        base.setDefinition(e.getDefinition());
        base.setShort(e.getShort());
        if (e.hasCommentElement())
            base.setCommentElement(e.getCommentElement());
        if (e.hasRequirementsElement())
            base.setRequirementsElement(e.getRequirementsElement());
        base.getAlias().clear();
        base.getAlias().addAll(e.getAlias());
        base.getMapping().clear();
        base.getMapping().addAll(e.getMapping());
    }
    if (derived != null) {
        boolean isExtension = checkExtensionDoco(base);
        if (derived.hasSliceName()) {
            base.setSliceName(derived.getSliceName());
        }
        if (derived.hasShortElement()) {
            if (!Base.compareDeep(derived.getShortElement(), base.getShortElement(), false))
                base.setShortElement(derived.getShortElement().copy());
            else if (trimDifferential)
                derived.setShortElement(null);
            else if (derived.hasShortElement())
                derived.getShortElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasDefinitionElement()) {
            if (derived.getDefinition().startsWith("..."))
                base.setDefinition(base.getDefinition() + "\r\n" + derived.getDefinition().substring(3));
            else if (!Base.compareDeep(derived.getDefinitionElement(), base.getDefinitionElement(), false))
                base.setDefinitionElement(derived.getDefinitionElement().copy());
            else if (trimDifferential)
                derived.setDefinitionElement(null);
            else if (derived.hasDefinitionElement())
                derived.getDefinitionElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasCommentElement()) {
            if (derived.getComment().startsWith("..."))
                base.setComment(base.getComment() + "\r\n" + derived.getComment().substring(3));
            else if (derived.hasCommentElement() != base.hasCommentElement() || !Base.compareDeep(derived.getCommentElement(), base.getCommentElement(), false))
                base.setCommentElement(derived.getCommentElement().copy());
            else if (trimDifferential)
                base.setCommentElement(derived.getCommentElement().copy());
            else if (derived.hasCommentElement())
                derived.getCommentElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasLabelElement()) {
            if (derived.getLabel().startsWith("..."))
                base.setLabel(base.getLabel() + "\r\n" + derived.getLabel().substring(3));
            else if (!base.hasLabelElement() || !Base.compareDeep(derived.getLabelElement(), base.getLabelElement(), false))
                base.setLabelElement(derived.getLabelElement().copy());
            else if (trimDifferential)
                base.setLabelElement(derived.getLabelElement().copy());
            else if (derived.hasLabelElement())
                derived.getLabelElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasRequirementsElement()) {
            if (derived.getRequirements().startsWith("..."))
                base.setRequirements(base.getRequirements() + "\r\n" + derived.getRequirements().substring(3));
            else if (!base.hasRequirementsElement() || !Base.compareDeep(derived.getRequirementsElement(), base.getRequirementsElement(), false))
                base.setRequirementsElement(derived.getRequirementsElement().copy());
            else if (trimDifferential)
                base.setRequirementsElement(derived.getRequirementsElement().copy());
            else if (derived.hasRequirementsElement())
                derived.getRequirementsElement().setUserData(DERIVATION_EQUALS, true);
        }
        // sdf-9
        if (derived.hasRequirements() && !base.getPath().contains("."))
            derived.setRequirements(null);
        if (base.hasRequirements() && !base.getPath().contains("."))
            base.setRequirements(null);
        if (derived.hasAlias()) {
            if (!Base.compareDeep(derived.getAlias(), base.getAlias(), false))
                for (StringType s : derived.getAlias()) {
                    if (!base.hasAlias(s.getValue()))
                        base.getAlias().add(s.copy());
                }
            else if (trimDifferential)
                derived.getAlias().clear();
            else
                for (StringType t : derived.getAlias()) t.setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMinElement()) {
            if (!Base.compareDeep(derived.getMinElement(), base.getMinElement(), false)) {
                if (derived.getMin() < base.getMin())
                    messages.add(new ValidationMessage(Source.ProfileValidator, ValidationMessage.IssueType.BUSINESSRULE, pn + "." + source.getPath(), "Derived min  (" + Integer.toString(derived.getMin()) + ") cannot be less than base min (" + Integer.toString(base.getMin()) + ")", ValidationMessage.IssueSeverity.ERROR));
                base.setMinElement(derived.getMinElement().copy());
            } else if (trimDifferential)
                derived.setMinElement(null);
            else
                derived.getMinElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMaxElement()) {
            if (!Base.compareDeep(derived.getMaxElement(), base.getMaxElement(), false)) {
                if (isLargerMax(derived.getMax(), base.getMax()))
                    messages.add(new ValidationMessage(Source.ProfileValidator, ValidationMessage.IssueType.BUSINESSRULE, pn + "." + source.getPath(), "Derived max (" + derived.getMax() + ") cannot be greater than base max (" + base.getMax() + ")", ValidationMessage.IssueSeverity.ERROR));
                base.setMaxElement(derived.getMaxElement().copy());
            } else if (trimDifferential)
                derived.setMaxElement(null);
            else
                derived.getMaxElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasFixed()) {
            if (!Base.compareDeep(derived.getFixed(), base.getFixed(), true)) {
                base.setFixed(derived.getFixed().copy());
            } else if (trimDifferential)
                derived.setFixed(null);
            else
                derived.getFixed().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasPattern()) {
            if (!Base.compareDeep(derived.getPattern(), base.getPattern(), false)) {
                base.setPattern(derived.getPattern().copy());
            } else if (trimDifferential)
                derived.setPattern(null);
            else
                derived.getPattern().setUserData(DERIVATION_EQUALS, true);
        }
        for (ElementDefinitionExampleComponent ex : derived.getExample()) {
            boolean found = false;
            for (ElementDefinitionExampleComponent exS : base.getExample()) if (Base.compareDeep(ex, exS, false))
                found = true;
            if (!found)
                base.addExample(ex.copy());
            else if (trimDifferential)
                derived.getExample().remove(ex);
            else
                ex.setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMaxLengthElement()) {
            if (!Base.compareDeep(derived.getMaxLengthElement(), base.getMaxLengthElement(), false))
                base.setMaxLengthElement(derived.getMaxLengthElement().copy());
            else if (trimDifferential)
                derived.setMaxLengthElement(null);
            else
                derived.getMaxLengthElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMaxValue()) {
            if (!Base.compareDeep(derived.getMaxValue(), base.getMaxValue(), false))
                base.setMaxValue(derived.getMaxValue().copy());
            else if (trimDifferential)
                derived.setMaxValue(null);
            else
                derived.getMaxValue().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMinValue()) {
            if (!Base.compareDeep(derived.getMinValue(), base.getMinValue(), false))
                base.setMinValue(derived.getMinValue().copy());
            else if (trimDifferential)
                derived.setMinValue(null);
            else
                derived.getMinValue().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMustSupportElement()) {
            if (!(base.hasMustSupportElement() && Base.compareDeep(derived.getMustSupportElement(), base.getMustSupportElement(), false)))
                base.setMustSupportElement(derived.getMustSupportElement().copy());
            else if (trimDifferential)
                derived.setMustSupportElement(null);
            else
                derived.getMustSupportElement().setUserData(DERIVATION_EQUALS, true);
        }
        // but extensions can change isModifier
        if (isExtension) {
            if (derived.hasIsModifierElement() && !(base.hasIsModifierElement() && Base.compareDeep(derived.getIsModifierElement(), base.getIsModifierElement(), false)))
                base.setIsModifierElement(derived.getIsModifierElement().copy());
            else if (trimDifferential)
                derived.setIsModifierElement(null);
            else if (derived.hasIsModifierElement())
                derived.getIsModifierElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasBinding()) {
            if (!base.hasBinding() || !Base.compareDeep(derived.getBinding(), base.getBinding(), false)) {
                if (base.hasBinding() && base.getBinding().getStrength() == BindingStrength.REQUIRED && derived.getBinding().getStrength() != BindingStrength.REQUIRED)
                    messages.add(new ValidationMessage(Source.ProfileValidator, ValidationMessage.IssueType.BUSINESSRULE, pn + "." + derived.getPath(), "illegal attempt to change the binding on " + derived.getPath() + " from " + base.getBinding().getStrength().toCode() + " to " + derived.getBinding().getStrength().toCode(), ValidationMessage.IssueSeverity.ERROR));
                else // throw new DefinitionException("StructureDefinition "+pn+" at "+derived.getPath()+": illegal attempt to change a binding from "+base.getBinding().getStrength().toCode()+" to "+derived.getBinding().getStrength().toCode());
                if (base.hasBinding() && derived.hasBinding() && base.getBinding().getStrength() == BindingStrength.REQUIRED && base.getBinding().hasValueSetReference() && derived.getBinding().hasValueSetReference()) {
                    ValueSetExpansionOutcome expBase = context.expandVS(context.fetchResource(ValueSet.class, base.getBinding().getValueSetReference().getReference()), true, false);
                    ValueSetExpansionOutcome expDerived = context.expandVS(context.fetchResource(ValueSet.class, derived.getBinding().getValueSetReference().getReference()), true, false);
                    if (expBase.getValueset() == null)
                        messages.add(new ValidationMessage(Source.ProfileValidator, ValidationMessage.IssueType.BUSINESSRULE, pn + "." + base.getPath(), "Binding " + base.getBinding().getValueSetReference().getReference() + " could not be expanded", ValidationMessage.IssueSeverity.WARNING));
                    else if (expDerived.getValueset() == null)
                        messages.add(new ValidationMessage(Source.ProfileValidator, ValidationMessage.IssueType.BUSINESSRULE, pn + "." + derived.getPath(), "Binding " + derived.getBinding().getValueSetReference().getReference() + " could not be expanded", ValidationMessage.IssueSeverity.WARNING));
                    else if (!isSubset(expBase.getValueset(), expDerived.getValueset()))
                        messages.add(new ValidationMessage(Source.ProfileValidator, ValidationMessage.IssueType.BUSINESSRULE, pn + "." + derived.getPath(), "Binding " + derived.getBinding().getValueSetReference().getReference() + " is not a subset of binding " + base.getBinding().getValueSetReference().getReference(), ValidationMessage.IssueSeverity.ERROR));
                }
                base.setBinding(derived.getBinding().copy());
            } else if (trimDifferential)
                derived.setBinding(null);
            else
                derived.getBinding().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasIsSummaryElement()) {
            if (!Base.compareDeep(derived.getIsSummaryElement(), base.getIsSummaryElement(), false)) {
                if (base.hasIsSummary())
                    throw new Error("Error in profile " + pn + " at " + derived.getPath() + ": Base isSummary = " + base.getIsSummaryElement().asStringValue() + ", derived isSummary = " + derived.getIsSummaryElement().asStringValue());
                base.setIsSummaryElement(derived.getIsSummaryElement().copy());
            } else if (trimDifferential)
                derived.setIsSummaryElement(null);
            else
                derived.getIsSummaryElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasType()) {
            if (!Base.compareDeep(derived.getType(), base.getType(), false)) {
                if (base.hasType()) {
                    for (TypeRefComponent ts : derived.getType()) {
                        boolean ok = false;
                        CommaSeparatedStringBuilder b = new CommaSeparatedStringBuilder();
                        for (TypeRefComponent td : base.getType()) {
                            ;
                            b.append(td.getCode());
                            if (td.hasCode() && (td.getCode().equals(ts.getCode()) || td.getCode().equals("Extension") || td.getCode().equals("Element") || td.getCode().equals("*") || ((td.getCode().equals("Resource") || (td.getCode().equals("DomainResource")) && pkp.isResource(ts.getCode())))))
                                ok = true;
                        }
                        if (!ok)
                            throw new DefinitionException("StructureDefinition " + pn + " at " + derived.getPath() + ": illegal constrained type " + ts.getCode() + " from " + b.toString());
                    }
                }
                base.getType().clear();
                for (TypeRefComponent t : derived.getType()) {
                    TypeRefComponent tt = t.copy();
                    // tt.setUserData(DERIVATION_EQUALS, true);
                    base.getType().add(tt);
                }
            } else if (trimDifferential)
                derived.getType().clear();
            else
                for (TypeRefComponent t : derived.getType()) t.setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMapping()) {
            // todo: mappings are not cumulative - one replaces another
            if (!Base.compareDeep(derived.getMapping(), base.getMapping(), false)) {
                for (ElementDefinitionMappingComponent s : derived.getMapping()) {
                    boolean found = false;
                    for (ElementDefinitionMappingComponent d : base.getMapping()) {
                        found = found || (d.getIdentity().equals(s.getIdentity()) && d.getMap().equals(s.getMap()));
                    }
                    if (!found)
                        base.getMapping().add(s);
                }
            } else if (trimDifferential)
                derived.getMapping().clear();
            else
                for (ElementDefinitionMappingComponent t : derived.getMapping()) t.setUserData(DERIVATION_EQUALS, true);
        }
        // todo: constraints are cumulative. there is no replacing
        for (ElementDefinitionConstraintComponent s : base.getConstraint()) {
            s.setUserData(IS_DERIVED, true);
            if (!s.hasSource())
                s.setSource(base.getId());
        }
        if (derived.hasConstraint()) {
            for (ElementDefinitionConstraintComponent s : derived.getConstraint()) {
                ElementDefinitionConstraintComponent inv = s.copy();
                base.getConstraint().add(inv);
            }
        }
        // now, check that we still have a bindable type; if not, delete the binding - see task 8477
        if (dest.hasBinding() && !hasBindableType(dest))
            dest.setBinding(null);
        // finally, we copy any extensions from source to dest
        for (Extension ex : base.getExtension()) {
            StructureDefinition sd = context.fetchResource(StructureDefinition.class, ex.getUrl());
            if (sd == null || sd.getSnapshot() == null || sd.getSnapshot().getElementFirstRep().getMax().equals("1"))
                ToolingExtensions.removeExtension(dest, ex.getUrl());
            dest.addExtension(ex);
        }
    }
}

Example 18 with ValueSetExpansionOutcome

use of org.hl7.fhir.r4.terminologies.ValueSetExpander.ValueSetExpansionOutcome in project org.hl7.fhir.core by hapifhir.

the class BaseWorkerContext method loadFromCache.

private ValueSetExpansionOutcome loadFromCache(ValueSet vs, String cacheFn) throws FileNotFoundException, Exception {
    JsonParser parser = new JsonParser();
    Resource r = parser.parse(new FileInputStream(cacheFn));
    if (r instanceof OperationOutcome) {
        return new ValueSetExpansionOutcome(((OperationOutcome) r).getIssue().get(0).getDetails().getText(), TerminologyServiceErrorClass.UNKNOWN);
    } else {
        vs.setExpansion(((ValueSet) r).getExpansion());
        return new ValueSetExpansionOutcome(vs);
    }
}

Example 19 with ValueSetExpansionOutcome

use of org.hl7.fhir.r4.terminologies.ValueSetExpander.ValueSetExpansionOutcome in project org.hl7.fhir.core by hapifhir.

the class BaseWorkerContext method handleByCache.

private ValidationResult handleByCache(ValueSet vs, Coding coding, boolean tryCache) {
    String cacheId = cacheId(coding);
    Map<String, ValidationResult> cache = validationCache.get(vs.getUrl());
    if (cache == null) {
        cache = new HashMap<String, IWorkerContext.ValidationResult>();
        validationCache.put(vs.getUrl(), cache);
    }
    if (cache.containsKey(cacheId)) {
        return cache.get(cacheId);
    }
    if (!tryCache) {
        return null;
    }
    if (!cacheValidation) {
        return null;
    }
    if (failed.contains(vs.getUrl())) {
        return null;
    }
    ValueSetExpansionOutcome vse = expandVS(vs, true, false);
    if (vse.getValueset() == null || notcomplete(vse.getValueset())) {
        failed.add(vs.getUrl());
        return null;
    }
    ValidationResult res = validateCode(coding, vse.getValueset());
    cache.put(cacheId, res);
    return res;
}

Example 20 with ValueSetExpansionOutcome

use of org.hl7.fhir.r4.terminologies.ValueSetExpander.ValueSetExpansionOutcome in project org.hl7.fhir.core by hapifhir.

the class ProfileUtilities method updateFromDefinition.

private void updateFromDefinition(ElementDefinition dest, ElementDefinition source, String pn, boolean trimDifferential, String purl) throws DefinitionException, FHIRException {
    // we start with a clone of the base profile ('dest') and we copy from the profile ('source')
    // over the top for anything the source has
    ElementDefinition base = dest;
    ElementDefinition derived = source;
    derived.setUserData(DERIVATION_POINTER, base);
    if (derived != null) {
        boolean isExtension = checkExtensionDoco(base);
        if (derived.hasShortElement()) {
            if (!Base.compareDeep(derived.getShortElement(), base.getShortElement(), false))
                base.setShortElement(derived.getShortElement().copy());
            else if (trimDifferential)
                derived.setShortElement(null);
            else if (derived.hasShortElement())
                derived.getShortElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasDefinitionElement()) {
            if (derived.getDefinition().startsWith("..."))
                base.setDefinition(base.getDefinition() + "\r\n" + derived.getDefinition().substring(3));
            else if (!Base.compareDeep(derived.getDefinitionElement(), base.getDefinitionElement(), false))
                base.setDefinitionElement(derived.getDefinitionElement().copy());
            else if (trimDifferential)
                derived.setDefinitionElement(null);
            else if (derived.hasDefinitionElement())
                derived.getDefinitionElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasCommentsElement()) {
            if (derived.getComments().startsWith("..."))
                base.setComments(base.getComments() + "\r\n" + derived.getComments().substring(3));
            else if (!Base.compareDeep(derived.getCommentsElement(), base.getCommentsElement(), false))
                base.setCommentsElement(derived.getCommentsElement().copy());
            else if (trimDifferential)
                base.setCommentsElement(derived.getCommentsElement().copy());
            else if (derived.hasCommentsElement())
                derived.getCommentsElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasLabelElement()) {
            if (derived.getLabel().startsWith("..."))
                base.setLabel(base.getLabel() + "\r\n" + derived.getLabel().substring(3));
            else if (!Base.compareDeep(derived.getLabelElement(), base.getLabelElement(), false))
                base.setLabelElement(derived.getLabelElement().copy());
            else if (trimDifferential)
                base.setLabelElement(derived.getLabelElement().copy());
            else if (derived.hasLabelElement())
                derived.getLabelElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasRequirementsElement()) {
            if (derived.getRequirements().startsWith("..."))
                base.setRequirements(base.getRequirements() + "\r\n" + derived.getRequirements().substring(3));
            else if (!Base.compareDeep(derived.getRequirementsElement(), base.getRequirementsElement(), false))
                base.setRequirementsElement(derived.getRequirementsElement().copy());
            else if (trimDifferential)
                base.setRequirementsElement(derived.getRequirementsElement().copy());
            else if (derived.hasRequirementsElement())
                derived.getRequirementsElement().setUserData(DERIVATION_EQUALS, true);
        }
        // sdf-9
        if (derived.hasRequirements() && !base.getPath().contains("."))
            derived.setRequirements(null);
        if (base.hasRequirements() && !base.getPath().contains("."))
            base.setRequirements(null);
        if (derived.hasAlias()) {
            if (!Base.compareDeep(derived.getAlias(), base.getAlias(), false))
                for (StringType s : derived.getAlias()) {
                    if (!base.hasAlias(s.getValue()))
                        base.getAlias().add(s.copy());
                }
            else if (trimDifferential)
                derived.getAlias().clear();
            else
                for (StringType t : derived.getAlias()) t.setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMinElement()) {
            if (!Base.compareDeep(derived.getMinElement(), base.getMinElement(), false)) {
                if (derived.getMin() < base.getMin())
                    messages.add(new ValidationMessage(Source.ProfileValidator, IssueType.BUSINESSRULE, pn + "." + derived.getPath(), "Derived min  (" + Integer.toString(derived.getMin()) + ") cannot be less than base min (" + Integer.toString(base.getMin()) + ")", IssueSeverity.ERROR));
                base.setMinElement(derived.getMinElement().copy());
            } else if (trimDifferential)
                derived.setMinElement(null);
            else
                derived.getMinElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMaxElement()) {
            if (!Base.compareDeep(derived.getMaxElement(), base.getMaxElement(), false)) {
                if (isLargerMax(derived.getMax(), base.getMax()))
                    messages.add(new ValidationMessage(Source.ProfileValidator, IssueType.BUSINESSRULE, pn + "." + derived.getPath(), "Derived max (" + derived.getMax() + ") cannot be greater than base max (" + base.getMax() + ")", IssueSeverity.ERROR));
                base.setMaxElement(derived.getMaxElement().copy());
            } else if (trimDifferential)
                derived.setMaxElement(null);
            else
                derived.getMaxElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasFixed()) {
            if (!Base.compareDeep(derived.getFixed(), base.getFixed(), true)) {
                base.setFixed(derived.getFixed().copy());
            } else if (trimDifferential)
                derived.setFixed(null);
            else
                derived.getFixed().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasPattern()) {
            if (!Base.compareDeep(derived.getPattern(), base.getPattern(), false)) {
                base.setPattern(derived.getPattern().copy());
            } else if (trimDifferential)
                derived.setPattern(null);
            else
                derived.getPattern().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasExample()) {
            if (!Base.compareDeep(derived.getExample(), base.getExample(), false))
                base.setExample(derived.getExample().copy());
            else if (trimDifferential)
                derived.setExample(null);
            else
                derived.getExample().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMaxLengthElement()) {
            if (!Base.compareDeep(derived.getMaxLengthElement(), base.getMaxLengthElement(), false))
                base.setMaxLengthElement(derived.getMaxLengthElement().copy());
            else if (trimDifferential)
                derived.setMaxLengthElement(null);
            else
                derived.getMaxLengthElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMaxValue()) {
            if (!Base.compareDeep(derived.getMaxValue(), base.getMaxValue(), false))
                base.setMaxValue(derived.getMaxValue().copy());
            else if (trimDifferential)
                derived.setMaxValue(null);
            else
                derived.getMaxValue().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMinValue()) {
            if (!Base.compareDeep(derived.getMinValue(), base.getMinValue(), false))
                base.setMinValue(derived.getMinValue().copy());
            else if (trimDifferential)
                derived.setMinValue(null);
            else
                derived.getMinValue().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMustSupportElement()) {
            if (!Base.compareDeep(derived.getMustSupportElement(), base.getMustSupportElement(), false))
                base.setMustSupportElement(derived.getMustSupportElement().copy());
            else if (trimDifferential)
                derived.setMustSupportElement(null);
            else
                derived.getMustSupportElement().setUserData(DERIVATION_EQUALS, true);
        }
        // but extensions can change isModifier
        if (isExtension) {
            if (!Base.compareDeep(derived.getIsModifierElement(), base.getIsModifierElement(), false))
                base.setIsModifierElement(derived.getIsModifierElement().copy());
            else if (trimDifferential)
                derived.setIsModifierElement(null);
            else
                derived.getIsModifierElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasBinding()) {
            if (!Base.compareDeep(derived.getBinding(), base.getBinding(), false)) {
                if (base.hasBinding() && base.getBinding().getStrength() == BindingStrength.REQUIRED && derived.getBinding().getStrength() != BindingStrength.REQUIRED)
                    messages.add(new ValidationMessage(Source.ProfileValidator, IssueType.BUSINESSRULE, pn + "." + derived.getPath(), "illegal attempt to change a binding from " + base.getBinding().getStrength().toCode() + " to " + derived.getBinding().getStrength().toCode(), IssueSeverity.ERROR));
                else // throw new DefinitionException("StructureDefinition "+pn+" at "+derived.getPath()+": illegal attempt to change a binding from "+base.getBinding().getStrength().toCode()+" to "+derived.getBinding().getStrength().toCode());
                if (base.hasBinding() && derived.hasBinding() && base.getBinding().getStrength() == BindingStrength.REQUIRED) {
                    ValueSetExpansionOutcome expBase = context.expandVS(context.fetchResource(ValueSet.class, base.getBinding().getValueSetReference().getReference()), true);
                    ValueSetExpansionOutcome expDerived = context.expandVS(context.fetchResource(ValueSet.class, derived.getBinding().getValueSetReference().getReference()), true);
                    if (expBase.getValueset() == null)
                        messages.add(new ValidationMessage(Source.ProfileValidator, IssueType.BUSINESSRULE, pn + "." + base.getPath(), "Binding " + base.getBinding().getValueSetReference().getReference() + " could not be expanded", IssueSeverity.WARNING));
                    else if (expDerived.getValueset() == null)
                        messages.add(new ValidationMessage(Source.ProfileValidator, IssueType.BUSINESSRULE, pn + "." + derived.getPath(), "Binding " + derived.getBinding().getValueSetReference().getReference() + " could not be expanded", IssueSeverity.WARNING));
                    else if (!isSubset(expBase.getValueset(), expDerived.getValueset()))
                        messages.add(new ValidationMessage(Source.ProfileValidator, IssueType.BUSINESSRULE, pn + "." + derived.getPath(), "Binding " + derived.getBinding().getValueSetReference().getReference() + " is not a subset of binding " + base.getBinding().getValueSetReference().getReference(), IssueSeverity.ERROR));
                }
                base.setBinding(derived.getBinding().copy());
            } else if (trimDifferential)
                derived.setBinding(null);
            else
                derived.getBinding().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasIsSummaryElement()) {
            if (!Base.compareDeep(derived.getIsSummaryElement(), base.getIsSummaryElement(), false))
                base.setIsSummaryElement(derived.getIsSummaryElement().copy());
            else if (trimDifferential)
                derived.setIsSummaryElement(null);
            else
                derived.getIsSummaryElement().setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasType()) {
            if (!Base.compareDeep(derived.getType(), base.getType(), false)) {
                if (base.hasType()) {
                    for (TypeRefComponent ts : derived.getType()) {
                        boolean ok = false;
                        CommaSeparatedStringBuilder b = new CommaSeparatedStringBuilder();
                        for (TypeRefComponent td : base.getType()) {
                            b.append(td.getCode());
                            if (td.hasCode() && (td.getCode().equals(ts.getCode()) || td.getCode().equals("Extension") || td.getCode().equals("Element") || td.getCode().equals("*") || ((td.getCode().equals("Resource") || (td.getCode().equals("DomainResource")) && pkp.isResource(ts.getCode())))))
                                ok = true;
                        }
                        if (!ok)
                            throw new DefinitionException("StructureDefinition " + pn + " at " + derived.getPath() + ": illegal constrained type " + ts.getCode() + " from " + b.toString());
                    }
                }
                base.getType().clear();
                for (TypeRefComponent t : derived.getType()) {
                    TypeRefComponent tt = t.copy();
                    // tt.setUserData(DERIVATION_EQUALS, true);
                    base.getType().add(tt);
                }
            } else if (trimDifferential)
                derived.getType().clear();
            else
                for (TypeRefComponent t : derived.getType()) t.setUserData(DERIVATION_EQUALS, true);
        }
        if (derived.hasMapping()) {
            // todo: mappings are not cumulative - one replaces another
            if (!Base.compareDeep(derived.getMapping(), base.getMapping(), false)) {
                for (ElementDefinitionMappingComponent s : derived.getMapping()) {
                    boolean found = false;
                    for (ElementDefinitionMappingComponent d : base.getMapping()) {
                        found = found || (d.getIdentity().equals(s.getIdentity()) && d.getMap().equals(s.getMap()));
                    }
                    if (!found)
                        base.getMapping().add(s);
                }
            } else if (trimDifferential)
                derived.getMapping().clear();
            else
                for (ElementDefinitionMappingComponent t : derived.getMapping()) t.setUserData(DERIVATION_EQUALS, true);
        }
        // todo: constraints are cumulative. there is no replacing
        for (ElementDefinitionConstraintComponent s : base.getConstraint()) s.setUserData(IS_DERIVED, true);
        if (derived.hasConstraint()) {
            for (ElementDefinitionConstraintComponent s : derived.getConstraint()) {
                base.getConstraint().add(s.copy());
            }
        }
    }
}