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[AID] Handling of semantic annotations #54

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e88207d
fix: exclude dist from targets to avoid overwrite warning
egekorkan Oct 14, 2024
6e909fd
add handling of keys that contain a colon
egekorkan Oct 14, 2024
e557ca1
Apply suggestions from code review
egekorkan Oct 15, 2024
a753e0e
fix: remove continue statements and sanitize idshort
egekorkan Nov 5, 2024
7370556
test: add tests for semantics conversion
egekorkan Nov 6, 2024
9aabeda
chore: remove comments
egekorkan Nov 10, 2025
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82 changes: 81 additions & 1 deletion node/aas-aid/src/asset-interfaces-description.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1213,12 +1213,15 @@ export class AssetInterfacesDescription {
for (const propertyKey in td.properties) {
const property: PropertyElement = td.properties[propertyKey];

// we get all the property keys and remove known keys by the TD spec at each if clause
let propertyKeys: any = Object.keys(property);
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// check whether form exists for a given protocol (prefix)
const formElementPicked = this.getFormForProtocol(property, protocol);
if (formElementPicked === undefined) {
// do not add this property, since there will be no href of interest
continue;
}
propertyKeys.splice(propertyKeys.indexOf("forms"), 1);

const propertyValues: Array<unknown> = [];
// type
Expand All @@ -1230,6 +1233,7 @@ export class AssetInterfacesDescription {
value: property.type,
modelType: "Property",
});
propertyKeys.splice(propertyKeys.indexOf("type"), 1);
// special AID treatment
if (property.minimum != null || property.maximum != null) {
const minMax: { [k: string]: unknown } = {
Expand All @@ -1246,12 +1250,14 @@ export class AssetInterfacesDescription {
(minMax.supplementalSemanticIds as Array<unknown>).push(
this.createSemanticId("https://www.w3.org/2019/wot/json-schema#minimum")
);
propertyKeys.splice(propertyKeys.indexOf("minimum"), 1);
}
if (property.maximum != null) {
minMax.max = property.maximum.toString();
(minMax.supplementalSemanticIds as Array<unknown>).push(
this.createSemanticId("https://www.w3.org/2019/wot/json-schema#maximum")
);
propertyKeys.splice(propertyKeys.indexOf("maximum"), 1);
}
propertyValues.push(minMax);
}
Expand All @@ -1270,12 +1276,14 @@ export class AssetInterfacesDescription {
(itemsRange.supplementalSemanticIds as Array<unknown>).push(
this.createSemanticId("https://www.w3.org/2019/wot/json-schema#minItems")
);
propertyKeys.splice(propertyKeys.indexOf("minItems"), 1);
}
if (property.maxItems != null) {
itemsRange.max = property.maxItems.toString();
(itemsRange.supplementalSemanticIds as Array<unknown>).push(
this.createSemanticId("https://www.w3.org/2019/wot/json-schema#maxItems")
);
propertyKeys.splice(propertyKeys.indexOf("maxItems"), 1);
}
propertyValues.push(itemsRange);
}
Expand All @@ -1294,12 +1302,14 @@ export class AssetInterfacesDescription {
(lengthRange.supplementalSemanticIds as Array<unknown>).push(
this.createSemanticId("https://www.w3.org/2019/wot/json-schema#minLength")
);
propertyKeys.splice(propertyKeys.indexOf("minLength"), 1);
}
if (property.maxLength != null) {
lengthRange.max = property.maxLength.toString();
(lengthRange.supplementalSemanticIds as Array<unknown>).push(
this.createSemanticId("https://www.w3.org/2019/wot/json-schema#maxLength")
);
propertyKeys.splice(propertyKeys.indexOf("maxLength"), 1);
}
propertyValues.push(lengthRange);
}
Expand All @@ -1313,10 +1323,12 @@ export class AssetInterfacesDescription {
value: property.title,
modelType: "Property",
});
propertyKeys.splice(propertyKeys.indexOf("title"), 1);
}
// description
if (property.description != null) {
// AID deals with description in level above
propertyKeys.splice(propertyKeys.indexOf("description"), 1);
}
// observable (if it deviates from the default == false only)
if (property.observable != null && property.observable === true) {
Expand All @@ -1327,6 +1339,7 @@ export class AssetInterfacesDescription {
value: `${property.observable}`, // in AID represented as string
modelType: "Property",
});
propertyKeys.splice(propertyKeys.indexOf("observable"), 1);
}
// contentMediaType
if (property.contentMediaType != null) {
Expand All @@ -1339,6 +1352,7 @@ export class AssetInterfacesDescription {
value: property.contentMediaType,
modelType: "Property",
});
propertyKeys.splice(propertyKeys.indexOf("contentMediaType"), 1);
}
// TODO enum
// const
Expand All @@ -1349,6 +1363,7 @@ export class AssetInterfacesDescription {
value: property.const,
modelType: "Property",
});
propertyKeys.splice(propertyKeys.indexOf("const"), 1);
}
// default
if (property.default != null) {
Expand All @@ -1359,19 +1374,31 @@ export class AssetInterfacesDescription {
value: property.default,
modelType: "Property",
});
propertyKeys.splice(propertyKeys.indexOf("default"), 1);
}
// unit
if (property.unit != null) {
// TODO: handle if value has : in it
propertyValues.push({
idShort: "unit",
valueType: "xs:string",
value: property.unit,
modelType: "Property",
});
propertyKeys.splice(propertyKeys.indexOf("unit"), 1);
}
// TODO items

// readOnly and writeOnly marked as EXTERNAL in AID spec
if (property.readOnly != null) {
propertyKeys.splice(propertyKeys.indexOf("readOnly"), 1);
// TODO: readOnly marked as EXTERNAL in AID spec
}

if (property.writeOnly != null) {
propertyKeys.splice(propertyKeys.indexOf("writeOnly"), 1);
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// TODO: writeOnly marked as EXTERNAL in AID spec
}

// range and others? Simply add them as is?

// forms
Expand Down Expand Up @@ -1498,6 +1525,59 @@ export class AssetInterfacesDescription {
});
}

// Handling of any key that has : in it by creating semantic ids for each
// no need to bother if there is no object in the context or it is a string
const tdContext = td["@context"];
let prefixObject: any = {};

if (Array.isArray(tdContext)) {
// iterate through the array and add key-value pairs of each object to a single one
tdContext.forEach((arrayItem) => {
if (typeof arrayItem === "object") {
// insert every pair into the prefixObject
for (const key in arrayItem) {
prefixObject[key] = arrayItem[key as keyof typeof arrayItem];
}
} else if (typeof arrayItem === "string") {
// it is either the standard context or another non-prefix term.
// in second case, it is not useful without full rdf processing
} else {
//probably a json-ld error?
}
});
} else {
// then it is a simple string
}

// iterate through the remaining property keys to add extended semantic ids
propertyKeys.forEach((element: string) => {
if (element.includes(":")) {
// find the prefix
const colonLoc = element.indexOf(":");
const prefix = element.slice(0, colonLoc);

// check if the prefix is in the @context
if (prefixObject.hasOwnProperty(prefix)) {
const baseUri = prefixObject[prefix];

const semanticId = baseUri + element.slice(colonLoc + 1);

propertyValues.push({
idShort: this.sanitizeIdShort(element),
semanticId: this.createSemanticId(semanticId),
valueType: this.getSimpleValueTypeXsd(property.element),
value: property[element],
modelType: "Property",
});
} else {
// TODO: What to do for unknown keys by the TD spec, have a : but not present in the @context?
// Is this a JSON-LD bug? No error in JSON-LD playground
}
} else {
// TODO: What to do for unknown keys by the TD spec and do not have a :, thus not in the context with a prefix. Should we do full json-ld processing?
}
});

properties.push({
idShort: propertyKey,
description,
Expand Down
86 changes: 86 additions & 0 deletions node/aas-aid/test/asset-interfaces-description-test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1327,4 +1327,90 @@ class AssetInterfaceDescriptionTest {
expect(isValid.valid, isValid.errors).to.equal(true);
expect(submodel).to.have.property("submodelElements").to.be.an("array").to.have.lengthOf(1);
}

td4: ThingDescription = {
"@context": [
"https://www.w3.org/2022/wot/td/v1.1",
{
myPrefix1: "https://example.com/myContext1",
myPrefix2: "https://example.com/myContext2",
},
],
title: "test thing",
"@type": ["myPrefix1:suffix1", "myPrefix2:suffix2"],
securityDefinitions: {
nosec_sc: {
scheme: "nosec",
},
},
base: "http://example.com:3003",
security: ["nosec_sc"],
"myPrefix2:suffix3": "value1",
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@danielpeintner danielpeintner Nov 7, 2024

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This is not part of the test?

properties: {
myProperty1: {
type: "number",
title: "Property Title",
"myPrefix1:suffix4": "myPrefix2:value4",
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@danielpeintner danielpeintner Nov 7, 2024

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I don't really understand the idea/system/schema behind the attached numbers but it is fine by me

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@egekorkan egekorkan Nov 10, 2025

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It was just to make sure I create new terms in the AID to make it easier to search where they end up at

unit: "myPrefix2:value2",
forms: [
{
href: "relative/value",
contentType: "application/json",
"htv:methodName": "GET",
},
],
},
},
};

@test async "should correctly include semantic annotations into AAS from TD"() {
const sm = this.assetInterfacesDescription.transformTD2AID(JSON.stringify(this.td4));

const smObj = JSON.parse(sm);
console.log("###\n\n" + JSON.stringify(smObj) + "\n\n###");
// const isValid = this.validateAID(smObj);
// expect(isValid.valid, isValid.errors).to.equal(true);
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@danielpeintner danielpeintner Nov 7, 2024

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Remove console log and commented code?

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@egekorkan egekorkan Nov 10, 2025

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Done

expect(smObj).to.have.property("idShort").that.equals("AssetInterfacesDescription");
const smInterface = smObj.submodelElements[0];

// InteractionMetadata with properties etc
let hasInteractionMetadata = false;
for (const smValue of smInterface.value) {
if (smValue.idShort === "InteractionMetadata") {
hasInteractionMetadata = true;
expect(smValue).to.have.property("value").to.be.an("array").to.have.lengthOf.greaterThan(0);
let hasProperties = false;
for (const interactionValues of smValue.value) {
if (interactionValues.idShort === "properties") {
hasProperties = true;
expect(interactionValues)
.to.have.property("value")
.to.be.an("array")
.to.have.lengthOf.greaterThan(0);
let hasProperty1 = false;
for (const propertyValue of interactionValues.value) {
if (propertyValue.idShort === "myProperty1") {
hasProperty1 = true;
expect(propertyValue)
.to.have.property("value")
.to.be.an("array")
.to.have.lengthOf.greaterThan(0);
let hasMyPrefix1_suffix4 = false;
for (const propProperty of propertyValue.value) {
if (propProperty.idShort === "myPrefix1_suffix4") {
hasMyPrefix1_suffix4 = true;
expect(propProperty.value).to.equal("myPrefix2:value4");
}
}
expect(hasMyPrefix1_suffix4).to.equal(true);
}
}
expect(hasProperty1).to.equal(true);
}
}
expect(hasProperties).to.equal(true);
}
}
expect(hasInteractionMetadata, "No InteractionMetadata").to.equal(true);
}
}
2 changes: 1 addition & 1 deletion node/aas-aid/tsconfig.json
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Original file line number Diff line number Diff line change
Expand Up @@ -23,5 +23,5 @@
"strictNullChecks": true
},
"include": ["*.ts", "**/*.ts", "../src/**/*.ts", "**/AIDSchema.json"],
"exclude": []
"exclude": ["./dist/**/*"]
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}