Java Path.getRoot方法代码示例

import java.nio.file.Path; //导入方法依赖的package包/类
public N4JSProject getN4JSProject(URI location) {
	checkArgument(location.isFile(), "Expecting file URI. Was: " + location);
	boolean external = false;
	if (null != installLocationProvider.getTargetPlatformInstallLocation()) {
		Path projectPath = new File(location.toFileString()).toPath();
		Path nodeModulesPath = new File(installLocationProvider.getTargetPlatformNodeModulesLocation()).toPath();
		try {

			final Path projectRoot = projectPath.getRoot();
			final Path nodeModulesRoot = nodeModulesPath.getRoot();

			if (Objects.equal(projectRoot, nodeModulesRoot)) {
				final String relativePath = nodeModulesPath.relativize(projectPath).toString();
				external = location.lastSegment().equals(relativePath);
			}

		} catch (final IllegalArgumentException e) {
			final String message = "Error while trying to relativize paths. Project path was: " + projectPath
					+ " target platform node modules location was: " + nodeModulesPath + ".";
			LOGGER.error(message, e);
			throw new RuntimeException(message, e);
		}
	}
	return new N4JSProject(location, external, this);
}
 

import java.nio.file.Path; //导入方法依赖的package包/类
@Override
@FXThread
public void show(@NotNull final Window owner) {
    super.show(owner);

    Path initDirectory = getInitDirectory();
    if (initDirectory == null) {
        initDirectory = Paths.get(System.getProperty("user.home"));
    }

    final Path toExpand = initDirectory;
    final Path root = initDirectory.getRoot();

    final ResourceTree resourceTree = getResourceTree();
    resourceTree.fill(root);
    resourceTree.setOnLoadHandler(finished -> {
        if (finished) {
            resourceTree.expandTo(toExpand, true);
        }
    });

    EXECUTOR_MANAGER.addFXTask(resourceTree::requestFocus);
}
 

import java.nio.file.Path; //导入方法依赖的package包/类
static String stripRoot(Path path) {
    if (path.getRoot() != null) {
        String root = path.getRoot().toString();
        String filename = path.toString().substring(root.length());
        String separator = path.getFileSystem().getSeparator();
        while (filename.startsWith(separator)) {
            filename = filename.substring(separator.length());
        }
        return filename;
    }

    return path.toString();
}
 

import java.nio.file.Path; //导入方法依赖的package包/类
/**
 * Map a resource name to a "safe" file path. Returns {@code null} if
 * the resource name cannot be converted into a "safe" file path.
 *
 * Resource names with empty elements, or elements that are "." or ".."
 * are rejected, as are resource names that translates to a file path
 * with a root component.
 */
private static Path toSafeFilePath(FileSystem fs, String name) {
    // scan elements of resource name
    int next;
    int off = 0;
    while ((next = name.indexOf('/', off)) != -1) {
        int len = next - off;
        if (!mayTranslate(name, off, len)) {
            return null;
        }
        off = next + 1;
    }
    int rem = name.length() - off;
    if (!mayTranslate(name, off, rem)) {
        return null;
    }

    // convert to file path
    Path path;
    if (File.separatorChar == '/') {
        path = fs.getPath(name);
    } else {
        // not allowed to embed file separators
        if (name.contains(File.separator))
            return null;
        path = fs.getPath(name.replace('/', File.separatorChar));
    }

    // file path not allowed to have root component
    return (path.getRoot() == null) ? path : null;
}