Examples with ValueSetExpansionOutcome org.hl7.fhir.r4b.terminologies.ValueSetExpander.ValueSetExpansionOutcome used on opensource projects

Example 41 with ValueSetExpansionOutcome

use of org.hl7.fhir.r4b.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, StructureDefinition srcSD) throws DefinitionException, FHIRException {
    source.setUserData(GENERATED_IN_SNAPSHOT, dest);
    // 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);
    boolean isExtension = checkExtensionDoco(base);
    // Before applying changes, apply them to what's in the profile
    // TODO: follow Chris's rules - Done by Lloyd
    StructureDefinition profile = null;
    if (base.hasSliceName())
        profile = base.getType().size() == 1 && base.getTypeFirstRep().hasProfile() ? context.fetchResource(StructureDefinition.class, base.getTypeFirstRep().getProfile().get(0).getValue()) : null;
    if (profile == null)
        profile = source.getType().size() == 1 && source.getTypeFirstRep().hasProfile() ? context.fetchResource(StructureDefinition.class, source.getTypeFirstRep().getProfile().get(0).getValue()) : 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) {
        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 (// in a slice, minimum cardinality rules do not apply
                derived.getMin() < base.getMin() && !derived.hasSliceName())
                    messages.add(new ValidationMessage(Source.ProfileValidator, ValidationMessage.IssueType.BUSINESSRULE, pn + "." + source.getPath(), "Element " + base.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(), "Element " + base.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.hasIsModifierReasonElement() && !(base.hasIsModifierReasonElement() && Base.compareDeep(derived.getIsModifierReasonElement(), base.getIsModifierReasonElement(), false)))
                base.setIsModifierReasonElement(derived.getIsModifierReasonElement().copy());
            else if (trimDifferential)
                derived.setIsModifierReasonElement(null);
            else if (derived.hasIsModifierReasonElement())
                derived.getIsModifierReasonElement().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().hasValueSet() && derived.getBinding().hasValueSet()) {
                    ValueSet baseVs = context.fetchResource(ValueSet.class, base.getBinding().getValueSet());
                    ValueSet contextVs = context.fetchResource(ValueSet.class, derived.getBinding().getValueSet());
                    if (baseVs == null) {
                        messages.add(new ValidationMessage(Source.ProfileValidator, ValidationMessage.IssueType.BUSINESSRULE, pn + "." + base.getPath(), "Binding " + base.getBinding().getValueSet() + " could not be located", ValidationMessage.IssueSeverity.WARNING));
                    } else if (contextVs == null) {
                        messages.add(new ValidationMessage(Source.ProfileValidator, ValidationMessage.IssueType.BUSINESSRULE, pn + "." + derived.getPath(), "Binding " + derived.getBinding().getValueSet() + " could not be located", ValidationMessage.IssueSeverity.WARNING));
                    } else {
                        ValueSetExpansionOutcome expBase = context.expandVS(baseVs, true, false);
                        ValueSetExpansionOutcome expDerived = context.expandVS(contextVs, true, false);
                        if (expBase.getValueset() == null)
                            messages.add(new ValidationMessage(Source.ProfileValidator, ValidationMessage.IssueType.BUSINESSRULE, pn + "." + base.getPath(), "Binding " + base.getBinding().getValueSet() + " 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().getValueSet() + " 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().getValueSet() + " is not a subset of binding " + base.getBinding().getValueSet(), 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()) {
                        // if (!ts.hasCode()) { // ommitted in the differential; copy it over....
                        // if (base.getType().size() > 1)
                        // throw new DefinitionException("StructureDefinition "+pn+" at "+derived.getPath()+": constrained type code must be present if there are multiple types ("+base.typeSummary()+")");
                        // if (base.getType().get(0).getCode() != null)
                        // ts.setCode(base.getType().get(0).getCode());
                        // }
                        boolean ok = false;
                        CommaSeparatedStringBuilder b = new CommaSeparatedStringBuilder();
                        String t = ts.getWorkingCode();
                        for (TypeRefComponent td : base.getType()) {
                            ;
                            String tt = td.getWorkingCode();
                            b.append(tt);
                            if (td.hasCode() && (// work around for old badly generated SDs
                            tt.equals(t) || "Extension".equals(tt) || (t.equals("uri") && tt.equals("string")) || "Element".equals(tt) || "*".equals(tt) || (("Resource".equals(tt) || ("DomainResource".equals(tt)) && pkp.isResource(t)))))
                                ok = true;
                        }
                        if (!ok)
                            throw new DefinitionException("StructureDefinition " + pn + " at " + derived.getPath() + ": illegal constrained type " + t + " from " + b.toString() + " in " + srcSD.getUrl());
                    }
                }
                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 : derived.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.copy());
        }
    }
}

Example 42 with ValueSetExpansionOutcome

use of org.hl7.fhir.r4b.terminologies.ValueSetExpander.ValueSetExpansionOutcome in project org.hl7.fhir.core by hapifhir.

the class BaseWorkerContext method expandVS.

public ValueSetExpansionOutcome expandVS(ValueSet vs, boolean cacheOk, boolean heirarchical, Parameters p) {
    if (p == null)
        throw new Error("No Parameters provided to expandVS");
    if (vs.hasExpansion()) {
        return new ValueSetExpansionOutcome(vs.copy());
    }
    if (!vs.hasUrl())
        throw new Error("no value set");
    CacheToken cacheToken = txCache.generateExpandToken(vs, heirarchical);
    ValueSetExpansionOutcome res;
    if (cacheOk) {
        res = txCache.getExpansion(cacheToken);
        if (res != null)
            return res;
    }
    p.setParameter("includeDefinition", false);
    p.setParameter("excludeNested", !heirarchical);
    // ok, first we try to expand locally
    try {
        ValueSetExpanderSimple vse = new ValueSetExpanderSimple(this);
        res = vse.doExpand(vs, p);
        if (!res.getValueset().hasUrl())
            throw new Error("no url in expand value set");
        txCache.cacheExpansion(cacheToken, res, TerminologyCache.TRANSIENT);
        return res;
    } catch (Exception e) {
    }
    // if that failed, we try to expand on the server
    if (noTerminologyServer)
        return new ValueSetExpansionOutcome("Error expanding ValueSet: running without terminology services", TerminologyServiceErrorClass.NOSERVICE);
    Map<String, String> params = new HashMap<String, String>();
    params.put("_limit", Integer.toString(expandCodesLimit));
    params.put("_incomplete", "true");
    tlog("$expand on " + txCache.summary(vs));
    try {
        ValueSet result = txClient.expandValueset(vs, p, params);
        if (!result.hasUrl())
            result.setUrl(vs.getUrl());
        if (!result.hasUrl())
            throw new Error("no url in expand value set 2");
        res = new ValueSetExpansionOutcome(result).setTxLink(txLog.getLastId());
    } catch (Exception e) {
        res = new ValueSetExpansionOutcome(e.getMessage() == null ? e.getClass().getName() : e.getMessage(), TerminologyServiceErrorClass.UNKNOWN).setTxLink(txLog == null ? null : txLog.getLastId());
    }
    txCache.cacheExpansion(cacheToken, res, TerminologyCache.PERMANENT);
    return res;
}

Example 43 with ValueSetExpansionOutcome

use of org.hl7.fhir.r4b.terminologies.ValueSetExpander.ValueSetExpansionOutcome in project org.hl7.fhir.core by hapifhir.

the class BaseWorkerContext method expandVS.

@Override
public ValueSetExpansionOutcome expandVS(ConceptSetComponent inc, boolean heirachical) throws TerminologyServiceException {
    ValueSet vs = new ValueSet();
    vs.setCompose(new ValueSetComposeComponent());
    vs.getCompose().getInclude().add(inc);
    CacheToken cacheToken = txCache.generateExpandToken(vs, heirachical);
    ValueSetExpansionOutcome res;
    res = txCache.getExpansion(cacheToken);
    if (res != null)
        return res;
    Parameters p = expParameters.copy();
    p.setParameter("includeDefinition", false);
    p.setParameter("excludeNested", !heirachical);
    if (noTerminologyServer)
        return new ValueSetExpansionOutcome("Error expanding ValueSet: running without terminology services", TerminologyServiceErrorClass.NOSERVICE);
    Map<String, String> params = new HashMap<String, String>();
    params.put("_limit", Integer.toString(expandCodesLimit));
    params.put("_incomplete", "true");
    tlog("$expand on " + txCache.summary(vs));
    try {
        ValueSet result = txClient.expandValueset(vs, p, params);
        res = new ValueSetExpansionOutcome(result).setTxLink(txLog.getLastId());
    } catch (Exception e) {
        res = new ValueSetExpansionOutcome(e.getMessage() == null ? e.getClass().getName() : e.getMessage(), TerminologyServiceErrorClass.UNKNOWN);
        if (txLog != null)
            res.setTxLink(txLog.getLastId());
    }
    txCache.cacheExpansion(cacheToken, res, TerminologyCache.PERMANENT);
    return res;
}

Example 44 with ValueSetExpansionOutcome

use of org.hl7.fhir.r4b.terminologies.ValueSetExpander.ValueSetExpansionOutcome in project org.hl7.fhir.core by hapifhir.

the class NarrativeGenerator method countMembership.

private Integer countMembership(ValueSet vs) {
    int count = 0;
    if (vs.hasExpansion())
        count = count + conceptCount(vs.getExpansion().getContains());
    else {
        if (vs.hasCompose()) {
            if (vs.getCompose().hasExclude()) {
                try {
                    ValueSetExpansionOutcome vse = context.expandVS(vs, true, false);
                    count = 0;
                    count += conceptCount(vse.getValueset().getExpansion().getContains());
                    return count;
                } catch (Exception e) {
                    return null;
                }
            }
            for (ConceptSetComponent inc : vs.getCompose().getInclude()) {
                if (inc.hasFilter())
                    return null;
                if (!inc.hasConcept())
                    return null;
                count = count + inc.getConcept().size();
            }
        }
    }
    return count;
}

Example 45 with ValueSetExpansionOutcome

use of org.hl7.fhir.r4b.terminologies.ValueSetExpander.ValueSetExpansionOutcome in project org.hl7.fhir.core by hapifhir.

the class ValueSetExpansionCache method loadCache.

private void loadCache() throws FHIRFormatError, IOException {
    File[] files = new File(cacheFolder).listFiles();
    for (File f : files) {
        if (f.getName().endsWith(".xml")) {
            final FileInputStream is = new FileInputStream(f);
            try {
                Resource r = context.newXmlParser().setOutputStyle(OutputStyle.PRETTY).parse(is);
                if (r instanceof OperationOutcome) {
                    OperationOutcome oo = (OperationOutcome) r;
                    expansions.put(ToolingExtensions.getExtension(oo, VS_ID_EXT).getValue().toString(), new ValueSetExpansionOutcome(new XhtmlComposer(XhtmlComposer.XML, false).composePlainText(oo.getText().getDiv()), TerminologyServiceErrorClass.UNKNOWN));
                } else if (r instanceof ValueSet) {
                    ValueSet vs = (ValueSet) r;
                    if (vs.hasExpansion())
                        expansions.put(vs.getUrl(), new ValueSetExpansionOutcome(vs));
                    else {
                        canonicals.put(vs.getUrl(), vs);
                        if (vs.hasVersion())
                            canonicals.put(vs.getUrl() + "|" + vs.getVersion(), vs);
                    }
                } else if (r instanceof CanonicalResource) {
                    CanonicalResource md = (CanonicalResource) r;
                    canonicals.put(md.getUrl(), md);
                    if (md.hasVersion())
                        canonicals.put(md.getUrl() + "|" + md.getVersion(), md);
                }
            } finally {
                IOUtils.closeQuietly(is);
            }
        }
    }
}