Java URI.isFile方法代码示例

import org.eclipse.emf.common.util.URI; //导入方法依赖的package包/类
@Override
public N4JSEclipseProject getN4JSProject(URI location) {
	checkArgument(
			location.isPlatformResource() || location.isFile(),
			"Expected either platform:/resource or file:/ URI. Was: " + location);

	if (location.isPlatformResource() && location.segmentCount() != DIRECT_RESOURCE_IN_PROJECT_SEGMENTCOUNT) {
		checkArgument(
				DIRECT_RESOURCE_IN_PROJECT_SEGMENTCOUNT == location.segmentCount(),
				"Expected 2 segment counts for platform resource URI. Was " + location.segmentCount());
	}

	final String projectName = location.lastSegment();
	final IProject project;
	if (location.isFile()) {
		project = externalLibraryWorkspace.getProject(projectName);
		checkNotNull(project, "Project does not exist in external workspace. URI: " + location);
	} else {
		project = workspace.getProject(projectName);
	}

	return doGetN4JSProject(project, location);
}
 

import org.eclipse.emf.common.util.URI; //导入方法依赖的package包/类
@Override
public IStructuredSelection findSelection(final IEditorInput input) {
	final IStructuredSelection selection = super.findSelection(input);
	if (null == selection || selection.isEmpty() && input instanceof XtextReadonlyEditorInput) {
		try {
			final IStorage storage = ((XtextReadonlyEditorInput) input).getStorage();
			if (storage instanceof URIBasedStorage) {
				final URI uri = ((URIBasedStorage) storage).getURI();
				if (uri.isFile()) {
					final File file = new File(uri.toFileString());
					if (file.exists() && file.isFile()) {
						final Node node = getResourceNode(file);
						if (null != node) {
							return new StructuredSelection(node);
						}
					}
				}
			}
		} catch (final CoreException e) {
			LOGGER.error("Error while extracting storage from read-only Xtext editor input.", e);
			return EMPTY;
		}
	}
	return selection;
}
 

import org.eclipse.emf.common.util.URI; //导入方法依赖的package包/类
private URI tryFindProjectRecursivelyByManifest(URI location, Optional<URI> stopUri) {
	URI nestedLocation = location;
	int segmentCount = 0;
	if (nestedLocation.isFile()) { // Here, unlike java.io.File, #isFile can mean directory as well.
		File directory = new File(nestedLocation.toFileString());
		while (directory != null) {
			if (stopUri.isPresent() && stopUri.get().equals(nestedLocation)) {
				break;
			}
			if (directory.isDirectory()) {
				if (new File(directory, IN4JSProject.N4MF_MANIFEST).exists()) {
					URI projectLocation = URI.createFileURI(directory.getAbsolutePath());
					registerProject(projectLocation);
					return projectLocation;
				}
			}
			nestedLocation = nestedLocation.trimSegments(segmentCount++);
			directory = directory.getParentFile();
		}
	}
	return null;
}
 

import org.eclipse.emf.common.util.URI; //导入方法依赖的package包/类
@Override
public Optional<Pair<ExternalProject, ProjectDescription>> load(final URI rootLocation) throws Exception {

	if (null != rootLocation && rootLocation.isFile()) {
		final File projectRoot = new File(rootLocation.toFileString());
		if (projectRoot.exists() && projectRoot.isDirectory()) {
			final URI manifestLocation = rootLocation.appendSegment(IN4JSProject.N4MF_MANIFEST);
			final ProjectDescription projectDescription = packageManager.loadManifest(manifestLocation);
			if (null != projectDescription) {
				final ExternalProject project = new ExternalProject(projectRoot, NATURE_ID, BUILDER_ID);
				return Optional.of(Tuples.create(project, projectDescription));
			}
		}
	}

	return Optional.absent();
}
 

import org.eclipse.emf.common.util.URI; //导入方法依赖的package包/类
@Override
public URI findProjectWith(URI nestedLocation) {
	final String path = nestedLocation.toFileString();
	if (null == path) {
		return null;
	}

	final File nestedResource = new File(path);
	if (!nestedResource.exists()) {
		return null;
	}

	final Path nestedResourcePath = nestedResource.toPath();

	final Iterable<URI> registeredProjectUris = projectCache.asMap().keySet();
	for (final URI projectUri : registeredProjectUris) {
		if (projectUri.isFile()) {
			final File projectRoot = new File(projectUri.toFileString());
			final Path projectRootPath = projectRoot.toPath();
			if (nestedResourcePath.startsWith(projectRootPath)) {
				return projectUri;
			}
		}
	}

	return null;
}
 

import org.eclipse.emf.common.util.URI; //导入方法依赖的package包/类
/**
 * Check if the {@link URI URI} argument represents an external library location or not.
 *
 * @param uri
 *            to check whether external location or not.
 * @return {@code true} if the argument points to an external library location, otherwise {@code false}.
 */
public boolean isExternalLocation(final URI uri) {
	if (null != uri && uri.isFile()) {
		final IN4JSProject project = core.findProject(uri).orNull();
		return null != project && project.exists() && project.isExternal();
	}
	return false;
}