Examples of java.net.URI.normalize()

java.net.URI.normalize()
etf.org/rfc/rfc2396.txt">RFC 2396, section 5.2, step 6, sub-steps c through f; that is:
1. All "." segments are removed.
2. If a ".." segment is preceded by a non-".." segment then both of these segments are removed. This step is repeated until it is no longer applicable.
3. If the path is relative, and if its first segment contains a colon character (':'), then a "." segment is prepended. This prevents a relative URI with a path such as "a:b/c/d" from later being re-parsed as an opaque URI with a scheme of "a" and a scheme-specific part of "b/c/d". (Deviation from RFC 2396)
A normalized path will begin with one or more ".." segments if there were insufficient non-".." segments preceding them to allow their removal. A normalized path will begin with a "." segment if one was inserted by step 3 above. Otherwise, a normalized path will not contain any "." or ".." segments.
@return A URI equivalent to this URI,but whose path is in normal form

    }


  private static String normalize(String path) {
    try {
      URI uri =  new URI(path);
      String normalized = uri.normalize().toString();
      return normalized;
    } catch (URISyntaxException e) {
      e.printStackTrace();
      return null;
    }

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     * place to store the output from a number of map-reduce tasks.
     */
    public static String makeStoreTmpPath(String orig) {
        Path path = new Path(orig);
        URI uri = path.toUri();
        uri.normalize();


        String pathStr = uri.getPath();
        if (path.isAbsolute()) {
            return new Path("abs"+pathStr).toString();
        } else {

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            URI uri = new URI(url.getProtocol(), url.getAuthority(), url.getPath(), url.getQuery(),
                    url.getRef());


            // it is possible that the original url was already (partial) escaped,
            // so we must unescape all '%' followed by 2 hexadecimals...
            String uriString = uri.normalize().toASCIIString();


            // manually escape the '+' character
            uriString = uriString.replaceAll("\\+", "%2B");


            return ESCAPE_PATTERN.matcher(uriString).replaceAll("%$1");

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     * place to store the output from a number of map-reduce tasks.
     */
    public static String makeStoreTmpPath(String orig) {
        Path path = new Path(orig);
        URI uri = path.toUri();
        uri.normalize();


        String pathStr = uri.getPath();
        if (path.isAbsolute()) {
            return new Path("abs"+pathStr).toString();
        } else {

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                "/a/..b/c", "/a/b..c/d", "", "a", "a/b", "a/b/c", "../", "",
                "..", "../g", "b/c/g", "../c/e", "../c/", };


        for (int i = 0; i < normalizeData.length; i++) {
            URI test = new URI(normalizeData[i]);
            String result = test.normalize().toString();
            assertEquals("Normalized incorrectly, ", normalizeResults[i],
                    result.toString());
        }
    }

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     * @tests java.net.URI#normalize()
     */
    public void test_normalize2() throws URISyntaxException {
        URI uri1 = null, uri2 = null;
        uri1 = new URI("file:/D:/one/two/../../three");
        uri2 = uri1.normalize();


        assertEquals("Normalized to incorrect URI", "file:/D:/three", uri2
                .toString());
        assertTrue("Resolved URI is not absolute", uri2.isAbsolute());
        assertFalse("Resolved URI is opaque", uri2.isOpaque());

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     */
    public void test_normalize3() throws URISyntaxException {
        // return same URI if it has a normalized path already
        URI uri1 = null, uri2 = null;
        uri1 = new URI("http://host/D:/one/two/three");
        uri2 = uri1.normalize();
        assertSame("Failed to return same URI after normalization", uri1, uri2);


        // try with empty path
        uri1 = new URI("http", "host", null, "fragment");
        uri2 = uri1.normalize();

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        uri2 = uri1.normalize();
        assertSame("Failed to return same URI after normalization", uri1, uri2);


        // try with empty path
        uri1 = new URI("http", "host", null, "fragment");
        uri2 = uri1.normalize();
        assertSame("Failed to return same URI after normalization", uri1, uri2);
    }


    /**
     * @tests java.net.URI#parseServerAuthority()

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      throw new UnsupportedIdException(blobId,
          "Id must specify a relative path");
    try {
      // insert a '/' so java.net.URI normalization works
      URI tmp = new URI(scheme + ":/" + path);
      String nPath = tmp.normalize().getRawSchemeSpecificPart()
          .substring(1);
      if (nPath.equals("..") || nPath.startsWith("../"))
        throw new UnsupportedIdException(blobId,
            "Id cannot be outside top-level directory");
      return new URI(scheme + ":" + nPath);

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    if (path.startsWith("/"))
      throw new UnsupportedIdException(blobId, "Id must specify a relative path");
    try {
      // insert a '/' so java.net.URI normalization works
      URI tmp = new URI(scheme + ":/" + path);
      String nPath = tmp.normalize().getRawSchemeSpecificPart().substring(1);
      if (nPath.equals("..") || nPath.startsWith("../"))
        throw new UnsupportedIdException(blobId, "Id cannot be outside top-level directory");
      if (nPath.endsWith("/"))
        throw new UnsupportedIdException(blobId, "Id cannot specify a directory");
      return new URI(scheme + ":" + nPath);

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