Expose all supported mappings

Author: jeswr

.gitignore

@@ -21,3 +21,4 @@ coverage
 documentation
 engine-default.js
 components
+lib/mediaMappings.ts

lib/RdfParser.ts

@@ -2,32 +2,13 @@ import { ActionContext, Actor } from "@comunica/core";
 import * as RDF from "@rdfjs/types";
 import { Readable, PassThrough } from "readable-stream";
 import { MediatorRdfParseHandle, MediatorRdfParseMediaTypes } from '@comunica/bus-rdf-parse';
+import mediaMappings from "./mediaMappings";
 
 /**
  * An RdfParser can parse any RDF serialization, based on a given content type.
  */
 export class RdfParser<Q extends RDF.BaseQuad = RDF.Quad>  {
-
-  // tslint:disable:object-literal-sort-keys
-  public static readonly CONTENT_MAPPINGS: { [id: string]: string } = {
-    ttl      : "text/turtle",
-    turtle   : "text/turtle",
-    nt       : "application/n-triples",
-    ntriples : "application/n-triples",
-    nq       : "application/n-quads",
-    nquads   : "application/n-quads",
-    rdf      : "application/rdf+xml",
-    rdfxml   : "application/rdf+xml",
-    owl      : "application/rdf+xml",
-    n3       : "text/n3",
-    shc      : "text/shaclc",
-    shaclc   : "text/shaclc",
-    shce     : "text/shaclc-ext",
-    shaclce  : "text/shaclc-ext",
-    trig     : "application/trig",
-    jsonld   : "application/ld+json",
-    json     : "application/ld+json",
-  };
+  public static readonly CONTENT_MAPPINGS: Record<string, string> = mediaMappings;
 
   public readonly mediatorRdfParseMediatypes: MediatorRdfParseMediaTypes;
   public readonly mediatorRdfParseHandle: MediatorRdfParseHandle;

package.json

@@ -43,10 +43,12 @@
     "manual-git-changelog": "^1.0.1",
     "pre-commit": "^1.2.2",
     "rdf-data-factory": "^1.1.0",
+    "rdf-dereference": "^2.1.0",
     "rdf-quad": "^1.5.0",
     "rdf-test-suite": "^1.18.0",
     "streamify-string": "^1.0.1",
     "ts-jest": "^29.0.0",
+    "ts-node": "^10.9.1",
     "tslint": "^6.0.0",
     "tslint-eslint-rules": "^5.3.1",
     "typescript": "^4.0.0"
@@ -75,8 +77,9 @@
     "test": "jest ${1} --forceExit",
     "test-watch": "jest ${1} --watch",
     "lint": "tslint lib/index.ts lib/**/*.ts test/**/*.ts --exclude '**/*.d.ts'",
-    "build": "npm run build:ts && npm run build:components",
+    "build": "rm -rf lib/mediaMappings.* && npm run build:mediaMappings && npm run build:ts && npm run build:components",
     "build:ts": "tsc",
+    "build:mediaMappings": "ts-node scripts/getMediaMappings",
     "build:components": "componentsjs-generator",
     "validate": "npm ls",
     "prepare": "npm run build && comunica-compile-config config/config-default.json urn:comunica:default:Runner > engine-default.js",

scripts/getMediaMappings.ts

@@ -0,0 +1,13 @@
+import rdfDereference from 'rdf-dereference';
+import * as fs from 'fs';
+import * as path from 'path';
+
+const mediaMappings: Record<string, string> = (<any> rdfDereference.mediatorDereferenceRdf.bus).actors[0].mediaMappings;
+
+fs.writeFileSync(
+  path.join(__dirname, '..', 'lib', 'mediaMappings.ts'),
+  // This json override is here for backwards compatibility and may
+  // be removed in a major version bump
+  // @see https://github.com/rubensworks/rdf-parse.js/pull/51#issuecomment-1439977639
+  `export default ${JSON.stringify({ ...mediaMappings, json: "application/ld+json" }, null, 2)};\n`
+);

tsconfig.json

@@ -28,6 +28,7 @@
   ],
   "exclude": [
     "**/node_modules",
-    "**/test/*"
+    "**/test/*",
+    "lib/mediaMappings.ts"
   ]
 }