Class ToolPath

common/src/main/java/pro/tools/path/ToolPath.java:34–238

@author SeanDragon Create By 2017-09-01 11:16

 * Create By 2017-09-01 11:16
 */
public final class ToolPath {

    /**
     * 文件遍历的访问选项
     */
    private static final EnumSet<FileVisitOption> OPTS = EnumSet.of(FileVisitOption.FOLLOW_LINKS);

    /**
     * 读取选项
     */
    private static final OpenOption[] READ = new StandardOpenOption[]{StandardOpenOption.READ};
    /**
     * 写入选项
     */
    private static final OpenOption[] WRITE_CREATE = new StandardOpenOption[]{StandardOpenOption.WRITE, StandardOpenOption.CREATE};
    private static final OpenOption[] WRITE_CREATE_APPEND = new StandardOpenOption[]{StandardOpenOption.WRITE, StandardOpenOption.CREATE, StandardOpenOption.APPEND};

    public static Path getPath(String first, String... more) {
        if (ToolStr.isBlank(first)) {
            throw new NullPointerException("first is null");
        }
        return Paths.get(first, more).normalize();
    }

    public static Path getPath(URI uri) {
        if (uri == null) {
            throw new NullPointerException("uri is null");
        }
        return Paths.get(uri).normalize();
    }

    public static boolean isExists(Path path) {
        return Files.exists(path);
    }

    public static boolean isFile(Path path) {
        return Files.isRegularFile(path);
    }

    public static boolean isDir(Path path) {
        return Files.isDirectory(path);
    }

    public static boolean canRead(Path path) {
        return Files.isReadable(path);
    }

    public static boolean canWrite(Path path) {
        return Files.isWritable(path);
    }

    public static String getContentType(Path path) throws IOException {
        String type;
        URL u = path.toUri().toURL();
        URLConnection uc = u.openConnection();
        type = uc.getContentType();
        return type;
    }