Java Code Examples for org.eclipse.xtext.resource.XtextResource#load()

public XtextResource parse(final String fileName, final CharSequence model) {
  try {
    XtextResource _xblockexpression = null;
    {
      final XtextResourceSet rs = this.resourceSetProvider.get();
      Resource _createResource = rs.createResource(URI.createURI((fileName + ".xtend")));
      final XtextResource r = ((XtextResource) _createResource);
      String _string = model.toString();
      StringInputStream _stringInputStream = new StringInputStream(_string);
      r.load(_stringInputStream, Collections.<Object, Object>unmodifiableMap(CollectionLiterals.<Object, Object>newHashMap()));
      _xblockexpression = r;
    }
    return _xblockexpression;
  } catch (Throwable _e) {
    throw Exceptions.sneakyThrow(_e);
  }
}
 

@Override
public final XtextResource getResourceFor(InputStream stream) {
	try {
		final StringBuilder content = new StringBuilder();
		try (final InputStreamReader reader = new InputStreamReader(stream)) {
			final BufferedReader breader = new BufferedReader(reader);
			String line = breader.readLine();
			while (line != null) {
				content.append(line);
				content.append(getLineSeparator());
				line = breader.readLine();
			}
		}
		final WorkbenchTestHelper helper = helper();
		final String strContent = content.toString();
		final IFile file = helper.createFile(helper.generateFilename(), strContent);
		final XtextResource resource = (XtextResource) helper.getResourceSet().createResource(helper.uri(file));
		try (InputStream is = new StringInputStream(strContent)) {
			resource.load(is, null);
		}
		return resource;
	} catch(Exception e) {
		throw new RuntimeException(e);
	}
}
 

@Test public void testReconcileDocument() throws Exception {
	Injector injector = doGetSetup().createInjectorAndDoEMFRegistration();
	XtextDocument document = injector.getInstance(XtextDocument.class);
	document.setValidationJob(new Job("Job") {
		@Override
		protected IStatus run(IProgressMonitor monitor) {
			return Status.OK_STATUS;
		}
	});
	XtextResource resource = injector.getInstance(XtextResource.class);
	XtextResourceSet resourceSet = injector.getInstance(XtextResourceSet.class);
	resourceSet.getResources().add(resource);
	resource.load(new StringInputStream(""), Collections.singletonMap(XtextResource.OPTION_ENCODING, Charset.defaultCharset().name()));
	document.setInput(resource);
	document.set("abstract rules firstRule");
	XtextDocumentReconcileStrategy strategy = injector.getInstance(XtextDocumentReconcileStrategy.class);
	strategy.setDocument(document);
	strategy.setResource(resource);
	try {
		strategy.reconcile(new ReconcilerReplaceRegion(0, document.getLength(), document.get()));
		fail("Expected ParseException");
	} catch(ParseException expected) {
		assertTrue(expected.getMessage().contains("Make sure the EPackage has been registered"));
	}
}
 

public <Result> Result useTemporaryResource(
		ResourceSet resourceSet, Grammar language, 
		AbstractRule rootRule, String content, IUnitOfWork<Result, XtextResource> runnable) {
	XtextResource resource = languageRegistry.createTemporaryResourceIn(language, resourceSet);
	if (rootRule != null)
		PartialParser.assignRootRule(resource, (ParserRule) rootRule);
	try {
		resource.load(new StringInputStream(content, resource.getEncoding()), null);
		return runnable.exec(resource);
	} catch(Exception e) {
		throw new RuntimeException(e);
	} finally {
		if (resource != null) {
			if (resource.isLoaded())
				resource.unload();
			resourceSet.getResources().remove(resource);
		}
	}
}
 

private static XtextResource doGetResource(Injector injector,
		InputStream in, URI uri) throws Exception {
	XtextResourceSet rs = injector.getInstance(XtextResourceSet.class);
	rs.setClasspathURIContext(DotEditorUtils.class);
	XtextResource resource = (XtextResource) injector
			.getInstance(IResourceFactory.class).createResource(uri);
	rs.getResources().add(resource);
	resource.load(in, null);
	if (resource instanceof LazyLinkingResource) {
		((LazyLinkingResource) resource)
				.resolveLazyCrossReferences(CancelIndicator.NullImpl);
	} else {
		EcoreUtil.resolveAll(resource);
	}
	return resource;
}
 

@Test
public void testBug_266807() throws Exception {
  final XtextResourceSet rs = this.<XtextResourceSet>get(XtextResourceSet.class);
  rs.setClasspathURIContext(this.getClass());
  StringConcatenation _builder = new StringConcatenation();
  _builder.append("classpath:/");
  String _replace = this.getClass().getPackage().getName().replace(Character.valueOf('.').charValue(), Character.valueOf('/').charValue());
  _builder.append(_replace);
  _builder.append("/Test.xtext");
  Resource _createResource = rs.createResource(
    URI.createURI(_builder.toString()), 
    ContentHandler.UNSPECIFIED_CONTENT_TYPE);
  final XtextResource resource = ((XtextResource) _createResource);
  resource.load(null);
  EList<Resource.Diagnostic> _errors = resource.getErrors();
  for (final Resource.Diagnostic d : _errors) {
    Assert.fail(d.getMessage());
  }
}
 

private void assertResourceContentFormat(String source, String expected) throws IOException {
	final ResourceSet resourceSet = new XtextResourceSet();
	final URI createURI = URI.createURI("synthetic://to-be-formatted.sarl"); //$NON-NLS-1$
	final XtextResource resource = (XtextResource) this.resourceFactory.createResource(createURI);
	resourceSet.getResources().add(resource);
	try (StringInputStream stringInputStream = new StringInputStream(source)) {
		resource.load(stringInputStream, Collections.emptyMap());
	}
	this.facade.format(resource);
	final String actual; 
	try (ByteArrayOutputStream stringOutputStream = new ByteArrayOutputStream()) {
		resource.save(stringOutputStream, Collections.emptyMap());
		stringOutputStream.flush();
		actual = stringOutputStream.toString();
	}
	assertEquals(expected, actual);
}
 

@Test public void testgetReferenceDescriptionForMultiValue() throws Exception {
	with(new LangATestLanguageStandaloneSetup());
	XtextResource targetResource = getResource("type C type D", "bar.langatestlanguage");
	EObject typeC = targetResource.getContents().get(0).eContents().get(0);
	EObject typeD = targetResource.getContents().get(0).eContents().get(1);
	XtextResource resource = (XtextResource) targetResource.getResourceSet().createResource(URI.createURI("foo.langatestlanguage"));
	resource.load(new StringInputStream("type A implements B,C,D type B"), null);
	EcoreUtil2.resolveLazyCrossReferences(resource, CancelIndicator.NullImpl);
	IResourceDescription resDesc = resource.getResourceServiceProvider().getResourceDescriptionManager().getResourceDescription(resource);
	Iterable<IReferenceDescription> descriptions = resDesc.getReferenceDescriptions();
	Collection<IReferenceDescription> collection = Lists.newArrayList(descriptions);
	assertEquals(2,collection.size());
	Iterator<IReferenceDescription> iterator = descriptions.iterator();
	IReferenceDescription refDesc1 = iterator.next();
	IReferenceDescription refDesc2 = iterator.next();
	Main m = (Main) resource.getParseResult().getRootASTElement();
	assertEquals(m.getTypes().get(0),resource.getResourceSet().getEObject(refDesc1.getSourceEObjectUri(),false));
	assertEquals(typeC,resource.getResourceSet().getEObject(refDesc1.getTargetEObjectUri(),false));
	assertEquals(1,refDesc1.getIndexInList());
	assertEquals(LangATestLanguagePackage.Literals.TYPE__IMPLEMENTS,refDesc1.getEReference());
	assertEquals(m.getTypes().get(0),resource.getResourceSet().getEObject(refDesc2.getSourceEObjectUri(),false));
	assertEquals(typeD,resource.getResourceSet().getEObject(refDesc2.getTargetEObjectUri(),false));
	assertEquals(2,refDesc2.getIndexInList());
	assertEquals(LangATestLanguagePackage.Literals.TYPE__IMPLEMENTS,refDesc2.getEReference());
}
 

@Override
public XtextResource doGetResource(final InputStream in, final URI uri) throws Exception {
  XtextResourceSet rs = this.<XtextResourceSet>get(XtextResourceSet.class);
  rs.setClasspathURIContext(this.getClass());
  Resource _createResource = this.getResourceFactory().createResource(uri);
  final XtextResource resource = ((XtextResource) _createResource);
  rs.getResources().add(resource);
  XtextLinker linker = new XtextLinker() {
    @Override
    protected Xtext2EcoreTransformer createTransformer(final Grammar grammar, final IDiagnosticConsumer consumer) {
      Xtext2EcoreTransformer result = super.createTransformer(grammar, consumer);
      ErrorAcceptor _errorAcceptor = result.getErrorAcceptor();
      Xtext2EcoreTransformerTest.MyErrorAcceptor _myErrorAcceptor = new Xtext2EcoreTransformerTest.MyErrorAcceptor(_errorAcceptor, Xtext2EcoreTransformerTest.this.errorAcceptorMock);
      result.setErrorAcceptor(_myErrorAcceptor);
      return result;
    }
  };
  ILinker _linker = resource.getLinker();
  linker.setScopeProvider(((XtextLinker) _linker).getScopeProvider());
  ILinker _linker_1 = resource.getLinker();
  linker.setLinkingService(((Linker) _linker_1).getLinkingService());
  ILinker _linker_2 = resource.getLinker();
  linker.setLinkingHelper(((Linker) _linker_2).getLinkingHelper());
  XtextLinker.PackageRemover _packageRemover = new XtextLinker.PackageRemover();
  linker.setPackageRemover(_packageRemover);
  LinkingDiagnosticMessageProvider _linkingDiagnosticMessageProvider = new LinkingDiagnosticMessageProvider();
  linker.setDiagnosticMessageProvider(_linkingDiagnosticMessageProvider);
  OnChangeEvictingCache _onChangeEvictingCache = new OnChangeEvictingCache();
  linker.setCache(_onChangeEvictingCache);
  resource.setLinker(linker);
  resource.load(in, null);
  return resource;
}
 

public XtextResource getResourceFromStream(InputStream in) throws IOException {
	XtextResourceSet rs = resourceSet.get();
	rs.setClasspathURIContext(getClass());
	URI uri = URI.createURI("mytestmodel."+fileExtension);
	XtextResource resource = createResource(uri);
	rs.getResources().add(resource);
	resource.load(in, null);
	return resource;
}
 

@Override
public final XtextResource getResourceFor(InputStream stream) {
	try {
		XtextResource result = (XtextResource) getResourceSet().createResource(URI.createURI("Test." + fileExtension));
		result.load(stream, null);
		return result;
	} catch(Exception e) {
		throw new RuntimeException(e);
	}
}
 

@Test public void testSaveUtfToUtf() throws Exception {
	XtextResource resource = createXtextResource();
	resource.load(new ByteArrayInputStream(utfBytes), utfOptions);
	ByteArrayOutputStream utfSaveStream = new ByteArrayOutputStream();
	resource.save(utfSaveStream, null);
	utfSaveStream.close();
	byte[] savedUtfBytes = utfSaveStream.toByteArray();
	assertTrue(Arrays.equals(utfBytes, savedUtfBytes));
}
 

@Override
public XtextResource getResourceFor(InputStream stream) {
	try {
		XtextResource result = (XtextResource) getResourceSet().createResource(URI.createURI("Test." + fileExtension));
		result.load(stream, null);
		return result;
	} catch (Exception e) {
		throw new RuntimeException(e);
	}
}
 

@Test public void testSaveIsoToIso() throws Exception {
	XtextResource resource = createXtextResource();
	resource.load(new ByteArrayInputStream(isoBytes), isoOptions);
	ByteArrayOutputStream isoSaveStream = new ByteArrayOutputStream();
	resource.save(isoSaveStream, null);
	isoSaveStream.close();
	byte[] savedIsoBytes = isoSaveStream.toByteArray();
	assertTrue(Arrays.equals(isoBytes, savedIsoBytes));
}
 

protected XtextResource doGetResource(InputStream in, URI uri) throws Exception {
	XtextResourceSet rs = get(XtextResourceSet.class);
	rs.setClasspathURIContext(getClass());
	XtextResource resource = (XtextResource) getResourceFactory().createResource(uri);
	rs.getResources().add(resource);
	resource.load(in, null);
	if (resource instanceof LazyLinkingResource) {
		((LazyLinkingResource) resource).resolveLazyCrossReferences(CancelIndicator.NullImpl);
	} else {
		EcoreUtil.resolveAll(resource);
	}
	return resource;
}
 

@Test public void testBrokenLink() throws Exception {
	XtextResourceSet rs = get(XtextResourceSet.class);
	Resource res1 = rs.createResource(URI.createURI("foo.langatestlanguage"));
	res1.load(new StringInputStream("type Foo"), null);
	
	XtextResource res2 = (XtextResource) rs.createResource(URI.createURI("bar.langatestlanguage"));
	res2.load(new StringInputStream("import 'foo.langatestlanguage'" +
	"type Bar extends Baz"), null);
	
	EcoreUtil.resolveAll(res2);
	Iterable<QualifiedName> names = res2.getResourceServiceProvider().getResourceDescriptionManager().getResourceDescription(res2).getImportedNames();
	assertEquals(QualifiedName.create("baz"),names.iterator().next());
}
 

protected void highlight(String model) {
	try {
		XtextResource resource = resourceProvider.createResource();
		resource.load(new StringInputStream(model), null);
		highlighter.provideHighlightingFor(resource, this, CancelIndicator.NullImpl);
		Assert.assertTrue(expectedRegions.toString(), expectedRegions.isEmpty());
	} catch(Exception e) {
		throw new RuntimeException(e);
	}
}
 

protected XtextResource doGetResource(InputStream in, URI uri) throws Exception {
	XtextResourceSet rs = get(XtextResourceSet.class);
	rs.setClasspathURIContext(getClass());
	XtextResource resource = (XtextResource) getResourceFactory().createResource(uri);
	rs.getResources().add(resource);
	resource.load(in, null);
	if (resource instanceof LazyLinkingResource) {
		((LazyLinkingResource) resource).resolveLazyCrossReferences(CancelIndicator.NullImpl);
	} else {
		EcoreUtil.resolveAll(resource);
	}
	return resource;
}
 

@Override
public XtextResource doGetResource(InputStream in, URI uri) throws Exception {
	XtextResourceSet rs = get(XtextResourceSet.class);
	Map<URI, URI> uriMap = rs.getURIConverter().getURIMap();
	uriMap.put(URI.createPlatformPluginURI("org.eclipse.xtext/", false), URI.createURI("classpath:/"));
	uriMap.put(URI.createPlatformPluginURI("org.eclipse.xtext.xbase/", false), URI.createURI("classpath:/"));
	uriMap.put(URI.createPlatformPluginURI("org.eclipse.xtext.common.types/", false), URI.createURI("classpath:/"));
	uriMap.put(URI.createPlatformPluginURI("org.eclipse.emf.ecore/", false), URI.createURI("classpath:/"));
	uriMap.put(URI.createPlatformResourceURI("org.eclipse.xtext.xbase/", false), URI.createURI("classpath:/"));
	uriMap.put(URI.createPlatformResourceURI("org.eclipse.emf.ecore/", false), URI.createURI("classpath:/"));
	uriMap.put(URI.createPlatformResourceURI("org.eclipse.xtext.common.types/", false),
			URI.createURI("classpath:/"));
	rs.setClasspathURIContext(getClass());
	XtextResource resource = ((XtextResource) getResourceFactory().createResource(uri));
	rs.getResources().add(resource);
	XtextLinker linker = new XtextLinker() {
		@Override
		protected Xtext2EcoreTransformer createTransformer(Grammar grammar, IDiagnosticConsumer consumer) {
			Xtext2EcoreTransformer result = super.createTransformer(grammar, consumer);
			result.setErrorAcceptor(new Xtext2EcoreTransformerTest.MyErrorAcceptor(result.getErrorAcceptor(),
					Xtext2EcoreTransformerTest.this.errorAcceptorMock));
			return result;
		}
	};
	linker.setScopeProvider(((XtextLinker) resource.getLinker()).getScopeProvider());
	linker.setLinkingService(((Linker) resource.getLinker()).getLinkingService());
	linker.setLinkingHelper(((Linker) resource.getLinker()).getLinkingHelper());
	linker.setPackageRemover(new XtextLinker.PackageRemover());
	linker.setDiagnosticMessageProvider(new LinkingDiagnosticMessageProvider());
	linker.setCache(new OnChangeEvictingCache());
	resource.setLinker(linker);
	resource.load(in, null);
	return resource;
}
 

@Test public void testValidExternalLink() throws Exception {
	XtextResourceSet rs = get(XtextResourceSet.class);
	Resource res1 = rs.createResource(URI.createURI("foo.langatestlanguage"));
	res1.load(new StringInputStream("type Foo"), null);
	
	XtextResource res2 = (XtextResource) rs.createResource(URI.createURI("bar.langatestlanguage"));
	res2.load(new StringInputStream("import 'foo.langatestlanguage'" +
	"type Bar extends Foo"), null);
	
	EcoreUtil.resolveAll(res2);
	Iterable<QualifiedName> names = res2.getResourceServiceProvider().getResourceDescriptionManager().getResourceDescription(res2).getImportedNames();
	assertEquals(QualifiedName.create("foo"),names.iterator().next());
}