Java Code Examples for org.eclipse.jdt.ls.core.internal.JDTUtils#resolveTypeRoot()

/**
 * public visibility only for test purpose
 */
public static IJavaProject getJavaProjectFromUri(String uri) throws CoreException, URISyntaxException {
	ITypeRoot typeRoot = JDTUtils.resolveTypeRoot(uri);
	if (typeRoot != null) {
		IJavaProject javaProject = typeRoot.getJavaProject();
		if (javaProject == null) {
			throw new CoreException(new Status(IStatus.ERROR, IConstants.PLUGIN_ID, "Given URI does not belong to an existing Java project."));
		}
		return javaProject;
	}

	// check for project root uri
	IContainer[] containers = ResourcesPlugin.getWorkspace().getRoot().findContainersForLocationURI(new URI(uri));
	if (containers == null || containers.length == 0) {
		throw new CoreException(new Status(IStatus.ERROR, IConstants.PLUGIN_ID, "Given URI does not belong to any Java project."));
	}

	// For multi-module scenario
	Arrays.sort(containers, (Comparator<IContainer>) (IContainer a, IContainer b) -> {
		return a.getFullPath().toPortableString().length() - b.getFullPath().toPortableString().length();
	});

	IJavaElement targetElement = null;
	for (IContainer container : containers) {
		targetElement = JavaCore.create(container);
		if (targetElement != null) {
			break;
		}
	}

	if (targetElement == null || targetElement.getJavaProject() == null) {
		throw new CoreException(new Status(IStatus.ERROR, IConstants.PLUGIN_ID, "Given URI does not belong to any Java project."));
	}

	return targetElement.getJavaProject();
}
 

public List<Either<SymbolInformation, DocumentSymbol>> documentSymbol(DocumentSymbolParams params, IProgressMonitor monitor) {

		ITypeRoot unit = JDTUtils.resolveTypeRoot(params.getTextDocument().getUri());
		if (unit == null) {
			return Collections.emptyList();
		}

		if (hierarchicalDocumentSymbolSupported) {
			List<DocumentSymbol> symbols = this.getHierarchicalOutline(unit, monitor);
			return symbols.stream().map(Either::<SymbolInformation, DocumentSymbol>forRight).collect(toList());
		} else {
			SymbolInformation[] elements = this.getOutline(unit, monitor);
			return Arrays.asList(elements).stream().map(Either::<SymbolInformation, DocumentSymbol>forLeft).collect(toList());
		}
	}
 

public static List<? extends Location> findLinks(String linkType, TextDocumentPositionParams position, IProgressMonitor monitor) {
	if (monitor.isCanceled()) {
		return Collections.emptyList();
	}
	ITypeRoot unit = JDTUtils.resolveTypeRoot(position.getTextDocument().getUri());
	if (unit != null && !monitor.isCanceled()) {
		PreferenceManager preferenceManager = JavaLanguageServerPlugin.getInstance().getPreferencesManager();
		try {
			IJavaElement element = JDTUtils.findElementAtSelection(unit, position.getPosition().getLine(), position.getPosition().getCharacter(), preferenceManager, monitor);
			if (!monitor.isCanceled() && Objects.equals(linkType, "superImplementation")) {
				IMethod overriddenMethod = findOverriddenMethod(element, monitor);
				if (!monitor.isCanceled() && overriddenMethod != null) {
					Location location = NavigateToDefinitionHandler.computeDefinitionNavigation(overriddenMethod, element.getJavaProject());
					if (!monitor.isCanceled() && location != null) {
						String declaringTypeName = overriddenMethod.getDeclaringType().getFullyQualifiedName();
						String methodName = overriddenMethod.getElementName();
						String displayName = declaringTypeName + "." + methodName;
						return Collections.singletonList(new LinkLocation(displayName, "method", location));
					}
				}
			}
		} catch (JavaModelException e) {
			// do nothing
		}
	}

	return Collections.emptyList();
}
 

public Hover hover(TextDocumentPositionParams position, IProgressMonitor monitor) {
	ITypeRoot unit = JDTUtils.resolveTypeRoot(position.getTextDocument().getUri());

	List<Either<String, MarkedString>> content = null;
	if (unit != null && !monitor.isCanceled()) {
		content = computeHover(unit, position.getPosition().getLine(), position.getPosition().getCharacter(), monitor);
	} else {
		content = Collections.singletonList(Either.forLeft(""));
	}
	Hover $ = new Hover();
	$.setContents(content);
	return $;
}
 

public List<? extends Location> typeDefinition(TextDocumentPositionParams position, IProgressMonitor monitor) {
	ITypeRoot unit = JDTUtils.resolveTypeRoot(position.getTextDocument().getUri());
	Location location = null;
	if (unit != null && !monitor.isCanceled()) {
		location = computeTypeDefinitionNavigation(unit, position.getPosition().getLine(), position.getPosition().getCharacter(), monitor);
	}
	return location == null ? null : Arrays.asList(location);
}
 

public List<FoldingRange> foldingRange(FoldingRangeRequestParams params, IProgressMonitor monitor) {
	List<FoldingRange> $ = new ArrayList<>();
	ITypeRoot unit = JDTUtils.resolveTypeRoot(params.getTextDocument().getUri());
	if (unit == null) {
		return $;
	}
	computeFoldingRanges($, unit, monitor);
	return $;
}
 

public List<? extends Location> definition(TextDocumentPositionParams position, IProgressMonitor monitor) {
	if (monitor.isCanceled()) {
		return Collections.emptyList();
	}
	ITypeRoot unit = JDTUtils.resolveTypeRoot(position.getTextDocument().getUri());
	Location location = null;
	if (unit != null && !monitor.isCanceled()) {
		location = computeDefinitionNavigation(unit, position.getPosition().getLine(),
				position.getPosition().getCharacter(), monitor);
	}
	return location == null || monitor.isCanceled() ? Collections.emptyList() : Arrays.asList(location);
}
 

public List<? extends DocumentHighlight> documentHighlight(TextDocumentPositionParams position, IProgressMonitor monitor) {
	ITypeRoot type = JDTUtils.resolveTypeRoot(position.getTextDocument().getUri());
	return computeOccurrences(type, position.getPosition().getLine(),
			position.getPosition().getCharacter(), monitor);
}