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import {AbstractType} from "../abap/types/basic/_abstract_type";
import {CDSDetermineTypes} from "../cds/cds_determine_types";
import {CDSParser} from "../cds/cds_parser";
import {CDSAnnotate, CDSAnnotation, CDSAs, CDSAssociation, CDSDefineProjection, CDSElement, CDSName, CDSPrefixedName, CDSRelation, CDSSelect, CDSSource} from "../cds/expressions";
import {IRegistry} from "../_iregistry";
import {AbstractObject} from "./_abstract_object";
import {IParseResult} from "./_iobject";
export type ParsedDataDefinition = {
sqlViewName: string | undefined;
definitionName: string | undefined;
description: string | undefined;
/** name is the name of the element, nameInSource the name in the prefixed source, if aliased via "as" */
fields: {key: boolean, name: string, nameInSource?: string, prefix: string, annotations: string[]}[];
sources: {name: string, as: string | undefined}[];
associations: {name: string, as: string | undefined}[],
relations: {name: string, as: string | undefined}[];
tree: ExpressionNode | undefined;
};
export class DataDefinition extends AbstractObject {
private parserError: boolean | undefined = undefined;
private parsedData: ParsedDataDefinition | undefined = undefined;
private typeCache: AbstractType | undefined = undefined;
private typeCacheData: ParsedDataDefinition | undefined = undefined;
public getType(): string {
return "DDLS";
}
public getAllowedNaming() {
return {
maxLength: 40,
allowNamespace: true,
};
}
public getSQLViewName(): string | undefined {
this.parse();
return this.parsedData?.sqlViewName;
}
public getDefinitionName(): string | undefined {
this.parse();
return this.parsedData?.definitionName;
}
public getDescription(): string | undefined {
this.parse();
return this.parsedData?.description;
}
public parseType(reg: IRegistry): AbstractType {
this.parse();
if (this.typeCache === undefined || this.typeCacheData !== this.parsedData) {
this.typeCacheData = this.parsedData;
this.typeCache = new CDSDetermineTypes().parseType(reg, this.parsedData!, this.getName());
}
return this.typeCache;
}
public getParsedData() {
return this.parsedData;
}
public listSources() {
this.parse();
return this.parsedData?.sources;
}
public setDirty(): void {
this.parsedData = undefined;
this.typeCache = undefined;
this.typeCacheData = undefined;
this.parserError = undefined;
super.setDirty();
}
public findSourceFile() {
return this.getFiles().find(f => f.getFilename().endsWith(".asddls") || f.getFilename().endsWith(".acds"));
}
public hasParserError() {
return this.parserError;
}
public listKeys(): string[] {
this.parse();
const ret: string[] = [];
for (const field of this.parsedData?.fields || []) {
if (field.key === true) {
ret.push(field.name);
}
}
return ret;
}
public parse(): IParseResult {
if (this.isDirty() === false) {
return {updated: false, runtime: 0};
}
const start = Date.now();
this.parsedData = {
sqlViewName: undefined,
definitionName: undefined,
description: this.findDescription(),
fields: [],
sources: [],
relations: [],
associations: [],
tree: undefined,
};
this.findSQLViewName();
this.parsedData.tree = new CDSParser().parse(this.findSourceFile());
if (this.parsedData.tree) {
for (const c of this.parsedData.tree?.getChildren() || []) {
if (c.get() instanceof CDSAnnotation) {
continue;
}
if (c instanceof ExpressionNode) {
this.parsedData.definitionName = c.findFirstExpression(CDSName)?.concatTokens().replace(/ /g, "");
break;
}
}
this.findSourcesAndRelations(this.parsedData.tree);
this.findFieldNames(this.parsedData.tree);
} else {
this.parserError = true;
}
this.dirty = false;
return {updated: true, runtime: Date.now() - start};
}
public getTree() {
return this.parsedData?.tree;
}
//////////
private findSQLViewName(): void {
const match = this.findSourceFile()?.getRaw().match(/@AbapCatalog\.sqlViewName: '([\w/]+)'/);
if (match) {
this.parsedData!.sqlViewName = match[1].toUpperCase();
}
}
private findDescription(): string | undefined {
const match = this.findSourceFile()?.getRaw().match(/@EndUserText\.label: '([\w,.:-=#%&() ]+)'/);
if (match) {
return match[1];
}
return undefined;
}
private findFieldNames(tree: ExpressionNode) {
let expr = tree.findFirstExpression(CDSSelect);
if (expr === undefined) {
expr = tree.findFirstExpression(CDSAnnotate);
}
if (expr === undefined) {
expr = tree.findFirstExpression(CDSDefineProjection);
}
for (const e of expr?.findDirectExpressions(CDSElement) || []) {
let prefix = "";
let nameInSource: string | undefined = undefined;
let found = e.findDirectExpression(CDSAs)?.findDirectExpression(CDSName);
const list = e.findDirectExpression(CDSPrefixedName)?.findAllExpressions(CDSName);
if (list !== undefined) {
const redirected = list.length > 1 && e.concatTokens().toUpperCase().includes(" REDIRECTED TO ");
if (list.length > 1 && redirected === false) {
// "prefix.field" is looked up as "field" in "prefix", also when aliased via "as"
prefix = list[0].concatTokens();
nameInSource = list[list.length - 1].concatTokens();
}
if (found === undefined) {
found = redirected === true ? list[0] : list[list.length - 1];
}
}
if (found === undefined) {
// typed virtual element: VIRTUAL <name> : <type>
if (e.findDirectTokenByText("VIRTUAL") !== undefined) {
found = e.findFirstExpression(CDSName);
}
}
if (found === undefined) {
continue;
}
const name = found?.concatTokens();
if (this.parsedData?.associations.some(a =>
a.name.toUpperCase() === name.toUpperCase() || a.as?.toUpperCase() === name.toUpperCase())) {
continue;
}
const annotations: string[] = [];
for (const a of e.findDirectExpressions(CDSAnnotation)) {
annotations.push(a.concatTokens());
}
this.parsedData!.fields.push({
name: name,
nameInSource: nameInSource,
annotations: annotations,
prefix: prefix,
key: e.findDirectTokenByText("KEY") !== undefined,
});
}
}
private findSourcesAndRelations(tree: ExpressionNode) {
for (const e of tree.findAllExpressions(CDSSource)) {
const name = e.getFirstChild()?.concatTokens().toUpperCase().replace(/ /g, "") || "ERROR";
const as = e.findDirectExpression(CDSAs)?.findDirectExpression(CDSName)?.concatTokens().toUpperCase();
this.parsedData!.sources.push({name, as});
}
for (const e of tree.findAllExpressions(CDSRelation)) {
// For namespace-prefixed names like /PF1/C_VH_TRANSTYPE, getFirstToken() only yields "/".
// Collect all tokens NOT part of the CDSAs child to reconstruct the full name.
const asNode = e.findDirectExpression(CDSAs);
const asTokenSet = new Set(
asNode ? asNode.getTokens().map(t => `${t.getStart().getRow()}:${t.getStart().getCol()}`) : [],
);
const name = e.getTokens()
.filter(t => !asTokenSet.has(`${t.getStart().getRow()}:${t.getStart().getCol()}`))
.map(t => t.getStr())
.join("") || "ERROR";
const as = asNode?.findDirectExpression(CDSName)?.getFirstToken().getStr();
this.parsedData!.relations.push({name, as});
}
for (const e of tree.findAllExpressions(CDSAssociation)) {
const j = e.findDirectExpression(CDSRelation);
if (j === undefined) {
continue;
}
// CDSRelation: seq(opt(/NS/), entityName, opt(CDSAs))
// For namespace-prefixed names like /PF1/C_VH_TRANSTYPE, getFirstToken() only yields "/"
// Collect all tokens that are NOT part of the CDSAs child to reconstruct the full name
const asNode = j.findDirectExpression(CDSAs);
const asTokenSet = new Set(
asNode ? asNode.getTokens().map(t => `${t.getStart().getRow()}:${t.getStart().getCol()}`) : [],
);
const name = j.getTokens()
.filter(t => !asTokenSet.has(`${t.getStart().getRow()}:${t.getStart().getCol()}`))
.map(t => t.getStr())
.join("") || "ERROR";
const as = asNode?.findDirectExpression(CDSName)?.getFirstToken().getStr();
this.parsedData!.associations.push({
name: name,
as: as,
});
}
}
}
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