Examples of java.io.InputStream.skip()

java.io.InputStream.skip()
Skips n number of bytes in this InputStream. Subsequent read()'s will not return these bytes unless reset() is used. This method may perform multiple reads to read n bytes. This default implementation reads n bytes into a temporary buffer. Concrete subclasses should provide their own implementation. @param n the number of bytes to skip. @return the number of bytes actually skipped. @throws IOException If the stream is already closed or another IOException occurs.

      fail("Exception during mark test 2");
    }


    in = new BufferedInputStream(new ByteArrayInputStream(bytes), 12);
    try {
      in.skip(6);
      in.mark(8);
      in.skip(7);
      in.reset();
      assertTrue("Wrong bytes 2", in.read() == 6 && in.read() == 7);
    } catch (IOException e) {

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    in = new BufferedInputStream(new ByteArrayInputStream(bytes), 12);
    try {
      in.skip(6);
      in.mark(8);
      in.skip(7);
      in.reset();
      assertTrue("Wrong bytes 2", in.read() == 6 && in.read() == 7);
    } catch (IOException e) {
      fail("Exception during mark test 3");
    }

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        assertEquals(result, "1234567890");
    }


    public void testContentLengthInputStreamSkip() throws IOException {
        InputStream in = new ContentLengthInputStream(new ByteArrayInputStream(new byte[20]), 10L);
        assertEquals(10, in.skip(10));
        assertTrue(in.read() == -1);


        in = new ContentLengthInputStream(new ByteArrayInputStream(new byte[20]), 10L);
        in.read();
        assertEquals(9, in.skip(10));

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        assertEquals(10, in.skip(10));
        assertTrue(in.read() == -1);


        in = new ContentLengthInputStream(new ByteArrayInputStream(new byte[20]), 10L);
        in.read();
        assertEquals(9, in.skip(10));
        assertTrue(in.read() == -1);


        in = new ContentLengthInputStream(new ByteArrayInputStream(new byte[20]), 2L);
        in.read();
        in.read();

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        assertTrue(in.read() == -1);


        in = new ContentLengthInputStream(new ByteArrayInputStream(new byte[20]), 2L);
        in.read();
        in.read();
        assertTrue(in.skip(10) <= 0);
        assertTrue(in.read() == -1);
    }


    public void testChunkedConsitance() throws IOException {
        String input = "76126;27823abcd;:q38a-\nkjc\rk%1ad\tkh/asdui\r\njkh+?\\suweb";

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        boolean foundCerts = false;
        Enumeration<JarEntry> e = jarFile.entries();
        while (e.hasMoreElements()) {
          JarEntry entry = e.nextElement();
          InputStream is = jarFile.getInputStream(entry);
          is.skip(100000);
          is.close();
          Certificate[] certs = entry.getCertificates();
          if (certs != null && certs.length > 0) {
            foundCerts = true;
            break;

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            public int read(byte[] b, long position) throws IOException, RepositoryException {
                InputStream in = getStream();
                try {
                    long skip = position;
                    while (skip > 0) {
                        long skipped = in.skip(skip);
                        if (skipped <= 0) {
                            return -1;
                        }
                        skip -= skipped;
                    }

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                }


                public int read(byte[] b, long position) throws IOException, RepositoryException {
                    InputStream in = getStream();
                    try {
                        in.skip(position);
                        return in.read(b);
                    } finally {
                        in.close();
                    }
                }

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  }
  
  public synchronized InputStream getBlockInputStream(Block b, long seekOffset)
                              throws IOException {
    InputStream result = getBlockInputStream(b);
    result.skip(seekOffset);
    return result;
  }


  /** Not supported */
  public BlockInputStreams getTmpInputStreams(Block b, long blkoff, long ckoff

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                }


                public int read(byte[] b, long position) throws IOException, RepositoryException {
                    InputStream in = getStream();
                    try {
                        in.skip(position);
                        return in.read(b);
                    } finally {
                        in.close();
                    }
                }

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