@tripsnek/tmf
Version:
TypeScript Modeling Framework - A TypeScript port of the Eclipse Modeling Framework (EMF)
273 lines • 44.6 kB
JavaScript
import { EDataTypeImpl } from '../metamodel/impl/edata-type-impl.js';
import { EEnumLiteralImpl } from '../metamodel/impl/eenum-literal-impl.js';
import { EClassImpl } from '../metamodel/impl/eclass-impl.js';
import { EEnumImpl } from '../metamodel/impl/eenum-impl.js';
import { EAttributeImpl } from '../metamodel/impl/eattribute-impl.js';
import { EReferenceImpl } from '../metamodel/impl/ereference-impl.js';
import { EOperationImpl } from '../metamodel/impl/eoperation-impl.js';
import { EParameterImpl } from '../metamodel/impl/eparameter-impl.js';
import { TUtils } from '../tutils.js';
import { EPackageImpl } from '../metamodel/impl/epackageimpl.js';
/**
* Parses Ecore XML strings into TMF metamodel instances.
* This class handles the core parsing logic without file system dependencies.
*/
export class EcoreStringParser {
parseFromJsString(ecoreJsonStr) {
return this.parseFromJs(JSON.parse(ecoreJsonStr));
}
parseFromJs(ecoreJs) {
const ePackage = ecoreJs['ecore:EPackage'];
//holds all types and features in a map for reference resolution (e.g. assigning
//types to references and attributes, enforcing EOpposites)
const typesMap = new Map();
const featuresMap = new Map();
//add primitive types
const primitiveTypes = TUtils.PRIMITIVES;
for (const type of primitiveTypes) {
typesMap.set('ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//' + type, new EDataTypeImpl(undefined, type));
}
// for (const key of typesMap.keys()) {
// console.error('KEY ' + key + ' : ' + typeof typesMap[key]);
// }
//parse all classifiers first, so that we can resolve them later
this.instantiateAllClassifiersAndFeatures(ePackage, typesMap, featuresMap, []);
//parse the root EPackage and all contents
const pkgPath = [];
const rootPackage = this.parsePackage(ePackage, undefined, typesMap, featuresMap, pkgPath);
return rootPackage;
}
/**
* Instantiates all the EClassifiers, which need to exist in-memory for a full
* pass so that features can be assigned types.
*
* @param pkgJson
* @param typesMap
* @param path
*/
instantiateAllClassifiersAndFeatures(pkgJson, typesMap, featuresMap, path) {
//keeps track of the path to the current package
path.push(pkgJson['$'].name);
if (pkgJson['eClassifiers']) {
for (const classEntry of pkgJson['eClassifiers']) {
let eclassifier = new EClassImpl();
const eType = classEntry['$']['xsi:type'];
if (eType === 'ecore:EEnum') {
eclassifier = new EEnumImpl();
for (const literalEntry of classEntry['eLiterals']) {
const literal = new EEnumLiteralImpl();
if (literalEntry['$']['name'])
literal.setName(literalEntry['$']['name']);
if (literalEntry['$']['value'])
literal.setValue(Number.parseInt(literalEntry['$']['value']));
if (literalEntry['$']['literal'])
literal.setLiteral(literalEntry['$']['literal']);
//TODO: Would not have to do both if model was source generated
eclassifier.addLiteral(literal);
literal.setEEnum(eclassifier);
}
}
else if (eType === 'ecore:EDataType') {
eclassifier = new EDataTypeImpl();
}
eclassifier.setName(classEntry['$']['name']);
if (classEntry['$']['abstract']) {
eclassifier.setAbstract(classEntry['$']['abstract']);
}
if (classEntry['$']['interface']) {
eclassifier.setInterface(classEntry['$']['interface']);
}
const eclassUri = this.getEClassifierUri(path, eclassifier.getName());
typesMap.set(eclassUri, eclassifier);
if (classEntry['eStructuralFeatures']) {
for (const featureEntry of classEntry['eStructuralFeatures']) {
//instantiate the feature
const fprops = featureEntry['$'];
let efeature;
if (fprops['xsi:type'] === 'ecore:EAttribute') {
efeature = new EAttributeImpl();
if (fprops.iD)
efeature.setId(true);
}
else if (fprops['xsi:type'] === 'ecore:EReference') {
efeature = new EReferenceImpl();
}
else {
console.error('Unknown type: ' + fprops['xsi:eType']);
console.log(fprops);
}
//create map entry from uri to the feature
if (efeature)
featuresMap.set(eclassUri + '/' + fprops['name'], efeature);
}
}
}
}
//recurse subdirectories
if (pkgJson['eSubpackages']) {
for (const packageEntry of pkgJson['eSubpackages']) {
this.instantiateAllClassifiersAndFeatures(packageEntry, typesMap, featuresMap, path);
}
}
path.pop();
}
//builds up the URI by which EClassifiers are referenced (e.g. to type features)
getEClassifierUri(path, className) {
let uri = '#//';
for (let i = 1; i < path.length; i++) {
uri += path[i] + '/';
}
uri += className;
return uri;
}
/**
* Parses the package represented by pkgJson.
*
* @param pkgJson
* @param parentPkg
* @param typesMap
* @param path
*/
parsePackage(pkgJson, parentPkg, typesMap, featuresMap, path) {
const thisPkg = new EPackageImpl(pkgJson['$'].name, pkgJson['$'].nsURI);
thisPkg.setNsPrefix(pkgJson['$'].nsPrefix);
//keeps track of the current path to the package
path.push(pkgJson['$'].name);
if (parentPkg) {
//TODO: Should not have to do both of these, should be inverses
parentPkg.getESubPackages().add(thisPkg);
thisPkg.setESuperPackage(parentPkg);
}
if (pkgJson['eClassifiers']) {
for (const classEntry of pkgJson['eClassifiers']) {
const eclassUri = this.getEClassifierUri(path, classEntry['$']['name']);
const eclass = typesMap.get(eclassUri);
if (!eclass) {
console.error('COULD NOT FIND ECLASS IDENTIFIED BY ' + eclassUri);
}
//TODO: Should not have to do both of these, should be inverses
eclass.setEPackage(thisPkg);
thisPkg.getEClassifiers().add(eclass);
//parse out super types
if (classEntry['$']['eSuperTypes']) {
for (const superType of classEntry['$']['eSuperTypes'].split(' ')) {
const superTypeEClass = typesMap.get(superType);
if (!superTypeEClass) {
console.error('COULD NOT FIND ECLASS IDENTIFIED BY ' + superType);
}
eclass.getESuperTypes().add(superTypeEClass);
}
}
if (eclass instanceof EClassImpl) {
//parse out features
this.parseFeatures(classEntry, typesMap, featuresMap, eclass, eclassUri);
//parse EOperations
if ('eOperations' in classEntry) {
const nameToEop = new Map();
for (const operationEntry of classEntry['eOperations']) {
const fprops = operationEntry['$'];
const prevExistingEop = nameToEop.get(fprops.name);
const eOperation = prevExistingEop
? prevExistingEop
: new EOperationImpl();
if (!prevExistingEop) {
eOperation.setName(fprops.name);
nameToEop.set(eOperation.getName(), eOperation);
eclass.getEOperations().add(eOperation);
eOperation.setEContainingClass(eclass);
if (fprops.eType)
eOperation.setEType(typesMap.get(fprops.eType));
if (fprops.upperBound) {
eOperation.setUpperBound(Number(fprops.upperBound));
}
}
if ('eParameters' in operationEntry) {
for (const paramEntry of operationEntry['eParameters']) {
const name = paramEntry.$.name;
let paramExists = false;
for (const p of eOperation.getEParameters())
if (name == p.getName())
paramExists = true;
if (!paramExists) {
const param = new EParameterImpl();
param.setName(paramEntry.$.name);
if (paramEntry.$.eType) {
param.setEType(typesMap.get(paramEntry.$.eType));
}
if (paramEntry.$.upperBound) {
param.setUpperBound(Number(paramEntry.$.upperBound));
}
//TODO: Would not have to do both if model was source generated
eOperation.getEParameters().add(param);
param.setEOperation(eOperation);
}
}
}
}
}
}
}
}
//recurse sub-packages
if (pkgJson['eSubpackages']) {
for (const packageEntry of pkgJson['eSubpackages']) {
this.parsePackage(packageEntry, thisPkg, typesMap, featuresMap, path);
}
}
path.pop();
return thisPkg;
}
/**
* Parses eStructuralFeatures elements from Ecore XMI element.
*
* @param classEntry
* @param typesMap
* @param featuresMap
* @param eclass
* @param eclassUri
*/
parseFeatures(classEntry, typesMap, featuresMap, eclass, eclassUri) {
if ('eStructuralFeatures' in classEntry) {
for (const featureEntry of classEntry['eStructuralFeatures']) {
const fprops = featureEntry['$'];
const efeature = featuresMap.get(eclassUri + '/' + fprops['name']);
if (efeature) {
efeature.setName(fprops['name']);
const type = typesMap.get(fprops['eType']);
if (!type) {
console.error('WARNING: COULD NOT LOCATE TYPE FOR ' +
fprops.name +
' with etype ' +
fprops.eType);
continue;
}
efeature.setEType(type);
if (fprops['upperBound']) {
efeature.setUpperBound(Number(fprops['upperBound']));
}
else {
efeature.setUpperBound(1);
}
//transient,changeable,volatile
efeature.setVolatile(fprops.volatile == null ? false : JSON.parse(fprops.volatile));
efeature.setChangeable(fprops.changeable == null ? true : JSON.parse(fprops.changeable));
efeature.setTransient(fprops.transient == null ? false : JSON.parse(fprops.transient));
//eopposites and containment
if (efeature instanceof EReferenceImpl) {
if (fprops['eOpposite']) {
const eopp = featuresMap.get(fprops['eOpposite']);
efeature.setEOpposite(eopp);
}
efeature.setContainment(fprops.containment == null
? false
: JSON.parse(fprops.containment));
}
//TODO: This should be handled automatically be einverse enforcement (if tmf were source-generated)
eclass.getEStructuralFeatures().add(efeature);
efeature.setEContainingClass(eclass);
}
}
}
}
}
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{ EDataTypeImpl } from '../metamodel/impl/edata-type-impl.js';\r\nimport { EClass } from '../metamodel/api/eclass.js';\r\nimport { EEnumLiteralImpl } from '../metamodel/impl/eenum-literal-impl.js';\r\nimport { EClassImpl } from '../metamodel/impl/eclass-impl.js';\r\nimport { EEnumImpl } from '../metamodel/impl/eenum-impl.js';\r\nimport { EClassifier } from '../metamodel/api/eclassifier.js';\r\nimport { EEnum } from '../metamodel/api/eenum.js';\r\nimport { EStructuralFeature } from '../metamodel/api/estructural-feature.js';\r\nimport { EPackage } from '../metamodel/api/epackage.js';\r\nimport { EAttributeImpl } from '../metamodel/impl/eattribute-impl.js';\r\nimport { EReferenceImpl } from '../metamodel/impl/ereference-impl.js';\r\nimport { EAttribute } from '../metamodel/api/eattribute.js';\r\nimport { EOperation } from '../metamodel/api/eoperation.js';\r\nimport { EOperationImpl } from '../metamodel/impl/eoperation-impl.js';\r\nimport { EParameterImpl } from '../metamodel/impl/eparameter-impl.js';\r\nimport { EReference } from '../metamodel/api/ereference.js';\r\nimport { TUtils } from '../tutils.js';\r\nimport { EPackageImpl } from '../metamodel/impl/epackageimpl.js';\r\n\r\n/**\r\n * Parses Ecore XML strings into TMF metamodel instances.\r\n * This class handles the core parsing logic without file system dependencies.\r\n */\r\nexport class EcoreStringParser {\r\n\r\n    public parseFromJsString(ecoreJsonStr: any) {\r\n      return this.parseFromJs(JSON.parse(ecoreJsonStr));\r\n    }\r\n\r\n  public parseFromJs(ecoreJs: any) {\r\n    const ePackage = ecoreJs['ecore:EPackage'];\r\n\r\n    //holds all types and features in a map for reference resolution (e.g. assigning\r\n    //types to references and attributes, enforcing EOpposites)\r\n    const typesMap = new Map<string, EClassifier>();\r\n    const featuresMap = new Map<string, EStructuralFeature>();\r\n\r\n    //add primitive types\r\n    const primitiveTypes = TUtils.PRIMITIVES;\r\n    for (const type of primitiveTypes) {\r\n      typesMap.set('ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//' + type,new EDataTypeImpl(undefined, type));\r\n    }\r\n    // for (const key of typesMap.keys()) {\r\n    //   console.error('KEY ' + key + ' : ' + typeof typesMap[key]);\r\n    // }\r\n\r\n    //parse all classifiers first, so that we can resolve them later\r\n    this.instantiateAllClassifiersAndFeatures(\r\n      ePackage,\r\n      typesMap,\r\n      featuresMap,\r\n      []\r\n    );\r\n\r\n    //parse the root EPackage and all contents\r\n    const pkgPath : any[] = [];\r\n    const rootPackage = this.parsePackage(\r\n      ePackage,\r\n      undefined,\r\n      typesMap,\r\n      featuresMap,\r\n      pkgPath\r\n    );\r\n\r\n    return rootPackage;\r\n  }\r\n\r\n  /**\r\n   * Instantiates all the EClassifiers, which need to exist in-memory for a full\r\n   * pass so that features can be assigned types.\r\n   *\r\n   * @param pkgJson\r\n   * @param typesMap\r\n   * @param path\r\n   */\r\n  private instantiateAllClassifiersAndFeatures(\r\n    pkgJson: any,\r\n    typesMap: Map<string, EClassifier>,\r\n    featuresMap: Map<string, EStructuralFeature>,\r\n    path: string[]\r\n  ) {\r\n    //keeps track of the path to the current package\r\n    path.push(pkgJson['$'].name);\r\n\r\n    if (pkgJson['eClassifiers']) {\r\n      for (const classEntry of pkgJson['eClassifiers']) {\r\n        let eclassifier: EClassifier = new EClassImpl();\r\n        const eType = classEntry['$']['xsi:type'];\r\n        if (eType === 'ecore:EEnum') {\r\n          eclassifier = new EEnumImpl();\r\n          for (const literalEntry of classEntry['eLiterals']) {\r\n            const literal = new EEnumLiteralImpl();\r\n            if (literalEntry['$']['name'])\r\n              literal.setName(literalEntry['$']['name']);\r\n            if (literalEntry['$']['value'])\r\n              literal.setValue(Number.parseInt(literalEntry['$']['value']));\r\n            if (literalEntry['$']['literal'])\r\n              literal.setLiteral(literalEntry['$']['literal']);\r\n\r\n            //TODO: Would not have to do both if model was source generated\r\n            (<EEnum>eclassifier).addLiteral(literal);\r\n            literal.setEEnum(eclassifier as EEnum);\r\n          }\r\n        } else if (eType === 'ecore:EDataType') {\r\n          eclassifier = new EDataTypeImpl();\r\n        }\r\n        eclassifier.setName(classEntry['$']['name']);\r\n        if (classEntry['$']['abstract']) {\r\n          (<EClass>eclassifier).setAbstract(classEntry['$']['abstract']);\r\n        }\r\n        if (classEntry['$']['interface']) {\r\n          (<EClass>eclassifier).setInterface(classEntry['$']['interface']);\r\n        }\r\n        const eclassUri = this.getEClassifierUri(path, eclassifier.getName());\r\n        typesMap.set(eclassUri,eclassifier);\r\n\r\n        if (classEntry['eStructuralFeatures']) {\r\n          for (const featureEntry of classEntry['eStructuralFeatures']) {\r\n            //instantiate the feature\r\n            const fprops = featureEntry['$'];\r\n            let efeature: EStructuralFeature | undefined;\r\n            if (fprops['xsi:type'] === 'ecore:EAttribute') {\r\n              efeature = new EAttributeImpl();\r\n              if (fprops.iD) (<EAttribute>efeature).setId(true);\r\n            } else if (fprops['xsi:type'] === 'ecore:EReference') {\r\n              efeature = new EReferenceImpl();\r\n            } else {\r\n              console.error('Unknown type: ' + fprops['xsi:eType']);\r\n              console.log(fprops);\r\n            }\r\n\r\n            //create map entry from uri to the feature\r\n            if(efeature)\r\n              featuresMap.set(eclassUri + '/' + fprops['name'],efeature);\r\n          }\r\n        }\r\n      }\r\n    }\r\n\r\n    //recurse subdirectories\r\n    if (pkgJson['eSubpackages']) {\r\n      for (const packageEntry of pkgJson['eSubpackages']) {\r\n        this.instantiateAllClassifiersAndFeatures(\r\n          packageEntry,\r\n          typesMap,\r\n          featuresMap,\r\n          path\r\n        );\r\n      }\r\n    }\r\n    path.pop();\r\n  }\r\n\r\n  //builds up the URI by which EClassifiers are referenced (e.g. to type features)\r\n  private getEClassifierUri(path: string[], className: string): string {\r\n    let uri = '#//';\r\n    for (let i = 1; i < path.length; i++) {\r\n      uri += path[i] + '/';\r\n    }\r\n    uri += className;\r\n    return uri;\r\n  }\r\n\r\n  /**\r\n   * Parses the package represented by pkgJson.\r\n   *\r\n   * @param pkgJson\r\n   * @param parentPkg\r\n   * @param typesMap\r\n   * @param path\r\n   */\r\n  private parsePackage(\r\n    pkgJson: any,\r\n    parentPkg: EPackage | undefined,\r\n    typesMap: Map<string, EClassifier>,\r\n    featuresMap: Map<string, EStructuralFeature>,\r\n    path: string[]\r\n  ): EPackage {\r\n    const thisPkg = new EPackageImpl(pkgJson['$'].name,pkgJson['$'].nsURI);\r\n    thisPkg.setNsPrefix(pkgJson['$'].nsPrefix);\r\n\r\n    //keeps track of the current path to the package\r\n    path.push(pkgJson['$'].name);\r\n    if (parentPkg) {\r\n\r\n     //TODO: Should not have to do both of these, should be inverses\r\n      parentPkg.getESubPackages().add(thisPkg);\r\n      thisPkg.setESuperPackage(parentPkg);\r\n    }\r\n    if (pkgJson['eClassifiers']) {\r\n      for (const classEntry of pkgJson['eClassifiers']) {\r\n        const eclassUri = this.getEClassifierUri(path, classEntry['$']['name']);\r\n        const eclass: EClassifier = typesMap.get(eclassUri) as EClassifier;\r\n        if (!eclass) {\r\n          console.error('COULD NOT FIND ECLASS IDENTIFIED BY ' + eclassUri);\r\n        }\r\n\r\n        //TODO: Should not have to do both of these, should be inverses\r\n        eclass.setEPackage(thisPkg);\r\n        thisPkg.getEClassifiers().add(eclass);\r\n\r\n        //parse out super types\r\n        if (classEntry['$']['eSuperTypes']) {\r\n          for (const superType of classEntry['$']['eSuperTypes'].split(' ')) {\r\n            const superTypeEClass = <EClass>typesMap.get(superType);\r\n            if (!superTypeEClass) {\r\n              console.error('COULD NOT FIND ECLASS IDENTIFIED BY ' + superType);\r\n            }\r\n            (<EClass>eclass).getESuperTypes().add(superTypeEClass);\r\n          }\r\n        }\r\n\r\n        if (eclass instanceof EClassImpl) {\r\n          //parse out features\r\n          this.parseFeatures(\r\n            classEntry,\r\n            typesMap,\r\n            featuresMap,\r\n            eclass,\r\n            eclassUri\r\n          );\r\n\r\n          //parse EOperations\r\n          if ('eOperations' in classEntry) {\r\n            const nameToEop = new Map<string, EOperation>();\r\n            for (const operationEntry of classEntry['eOperations']) {\r\n              const fprops = operationEntry['$'];\r\n              const prevExistingEop = nameToEop.get(fprops.name);\r\n\r\n              const eOperation = prevExistingEop\r\n                ? prevExistingEop\r\n                : new EOperationImpl();\r\n              if (!prevExistingEop) {\r\n                eOperation.setName(fprops.name);\r\n                nameToEop.set(eOperation.getName(), eOperation);\r\n                eclass.getEOperations().add(eOperation);\r\n                eOperation.setEContainingClass(eclass);\r\n                if (fprops.eType) eOperation.setEType(typesMap.get(fprops.eType) as EClassifier);\r\n                if (fprops.upperBound) {\r\n                  eOperation.setUpperBound(Number(fprops.upperBound));\r\n                }\r\n              }\r\n\r\n              if ('eParameters' in operationEntry) {\r\n                for (const paramEntry of operationEntry['eParameters']) {\r\n                  const name = paramEntry.$.name;\r\n                  let paramExists = false;\r\n                  for (const p of eOperation.getEParameters())\r\n                    if (name == p.getName()) paramExists = true;\r\n                  if (!paramExists) {\r\n                    const param = new EParameterImpl();\r\n                    param.setName(paramEntry.$.name);\r\n                    if (paramEntry.$.eType) {\r\n                      param.setEType(typesMap.get(paramEntry.$.eType) as EClassifier);\r\n                    }\r\n                    if (paramEntry.$.upperBound) {\r\n                      param.setUpperBound(Number(paramEntry.$.upperBound));\r\n                    }\r\n                    \r\n                    //TODO: Would not have to do both if model was source generated\r\n                    eOperation.getEParameters().add(param);\r\n                    param.setEOperation(eOperation);\r\n                  }\r\n                }\r\n              }\r\n            }\r\n          }\r\n        }\r\n      }\r\n    }\r\n\r\n    //recurse sub-packages\r\n    if (pkgJson['eSubpackages']) {\r\n      for (const packageEntry of pkgJson['eSubpackages']) {\r\n        this.parsePackage(packageEntry, thisPkg, typesMap, featuresMap, path);\r\n      }\r\n    }\r\n\r\n    path.pop();\r\n\r\n    return thisPkg;\r\n  }\r\n\r\n  /**\r\n   * Parses eStructuralFeatures elements from Ecore XMI element.\r\n   *\r\n   * @param classEntry\r\n   * @param typesMap\r\n   * @param featuresMap\r\n   * @param eclass\r\n   * @param eclassUri\r\n   */\r\n  private parseFeatures(\r\n    classEntry: any,\r\n    typesMap: Map<string, EClassifier>,\r\n    featuresMap: Map<string, EStructuralFeature>,\r\n    eclass: EClass,\r\n    eclassUri: string\r\n  ) {\r\n    if ('eStructuralFeatures' in classEntry) {\r\n      for (const featureEntry of classEntry['eStructuralFeatures']) {\r\n        const fprops = featureEntry['$'];\r\n        const efeature: EStructuralFeature =\r\n          featuresMap.get(eclassUri + '/' + fprops['name']) as EStructuralFeature;\r\n        if (efeature) {\r\n          efeature.setName(fprops['name']);\r\n          const type: EClassifier = typesMap.get(fprops['eType']) as EClassifier;\r\n          if (!type) {\r\n            console.error(\r\n              'WARNING: COULD NOT LOCATE TYPE FOR ' +\r\n                fprops.name +\r\n                ' with etype ' +\r\n                fprops.eType\r\n            );\r\n            continue;\r\n          }\r\n          efeature.setEType(type);\r\n          if (fprops['upperBound']) {\r\n            efeature.setUpperBound(Number(fprops['upperBound']));\r\n          } else {\r\n            efeature.setUpperBound(1);\r\n          }\r\n\r\n          //transient,changeable,volatile\r\n          efeature.setVolatile(\r\n            fprops.volatile == null ? false : JSON.parse(fprops.volatile)\r\n          );\r\n          efeature.setChangeable(\r\n            fprops.changeable == null ? true : JSON.parse(fprops.changeable)\r\n          );\r\n          efeature.setTransient(\r\n            fprops.transient == null ? false : JSON.parse(fprops.transient)\r\n          );\r\n\r\n          //eopposites and containment\r\n          if (efeature instanceof EReferenceImpl) {\r\n            if (fprops['eOpposite']) {\r\n              const eopp = <EReference>featuresMap.get(fprops['eOpposite']);\r\n              efeature.setEOpposite(eopp);\r\n            }\r\n            efeature.setContainment(\r\n              fprops.containment == null\r\n                ? false\r\n                : JSON.parse(fprops.containment)\r\n            );\r\n          }\r\n\r\n          //TODO: This should be handled automatically be einverse enforcement (if tmf were source-generated)\r\n          eclass.getEStructuralFeatures().add(efeature);\r\n          efeature.setEContainingClass(eclass);\r\n        }\r\n      }\r\n    }\r\n  }\r\n}"]}