Examples of java.io.Reader.skip()

java.io.Reader.skip()
Skips count number of characters in this Reader. Subsequent read()'s will not return these characters unless reset() is used. This method may perform multiple reads to read count characters. @param count how many characters should be passed over @return how many characters were successfully passed over @throws IOException If the Reader is closed when the call is made or if an IO error occurs during the operation.

    /** Test {@link Reader#skip(long)}. */
    public void testSkip() throws IOException {
        Reader reader = new CharSequenceReader("FooBar");
        assertEquals(3, reader.skip(3));
        checkRead(reader, "Bar");
        assertEquals(-1, reader.skip(3));
        reader.reset();
        assertEquals(2, reader.skip(2));
        assertEquals(4, reader.skip(10));
        assertEquals(-1, reader.skip(1));
        reader.close();

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        Reader reader = new CharSequenceReader("FooBar");
        assertEquals(3, reader.skip(3));
        checkRead(reader, "Bar");
        assertEquals(-1, reader.skip(3));
        reader.reset();
        assertEquals(2, reader.skip(2));
        assertEquals(4, reader.skip(10));
        assertEquals(-1, reader.skip(1));
        reader.close();
        assertEquals(6, reader.skip(20));
        assertEquals(-1, reader.read());

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        assertEquals(3, reader.skip(3));
        checkRead(reader, "Bar");
        assertEquals(-1, reader.skip(3));
        reader.reset();
        assertEquals(2, reader.skip(2));
        assertEquals(4, reader.skip(10));
        assertEquals(-1, reader.skip(1));
        reader.close();
        assertEquals(6, reader.skip(20));
        assertEquals(-1, reader.read());
    }

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        checkRead(reader, "Bar");
        assertEquals(-1, reader.skip(3));
        reader.reset();
        assertEquals(2, reader.skip(2));
        assertEquals(4, reader.skip(10));
        assertEquals(-1, reader.skip(1));
        reader.close();
        assertEquals(6, reader.skip(20));
        assertEquals(-1, reader.read());
    }

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        reader.reset();
        assertEquals(2, reader.skip(2));
        assertEquals(4, reader.skip(10));
        assertEquals(-1, reader.skip(1));
        reader.close();
        assertEquals(6, reader.skip(20));
        assertEquals(-1, reader.read());
    }


    /** Test {@link Reader#read()}. */
    public void testRead() throws IOException {

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    for (int i = 0; i < 256; i++)
      chars[i] = (char) i;
    Reader in = new BufferedReader(new Support_StringReader(new String(
        chars)), 12);
    try {
      in.skip(6);
      in.mark(14);
      in.read(new char[14], 0, 14);
      in.reset();
      assertTrue("Wrong chars", in.read() == (char) 6
          && in.read() == (char) 7);

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      fail("Exception during mark test 2:" + e);
    }


    in = new BufferedReader(new Support_StringReader(new String(chars)), 12);
    try {
      in.skip(6);
      in.mark(8);
      in.skip(7);
      in.reset();
      assertTrue("Wrong chars 2", in.read() == (char) 6
          && in.read() == (char) 7);

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    in = new BufferedReader(new Support_StringReader(new String(chars)), 12);
    try {
      in.skip(6);
      in.mark(8);
      in.skip(7);
      in.reset();
      assertTrue("Wrong chars 2", in.read() == (char) 6
          && in.read() == (char) 7);
    } catch (IOException e) {
      fail("Exception during mark test 3:" + e);

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            long left = pos - 1;
            long skipped = 0;
            if (clobLength > 0) {
                println("clobLength: " + clobLength);
                while (left > 0 && skipped >= 0) {
                    skipped = reader.skip(Math.min(1024, left));
                    left -= skipped > 0 ? skipped : 0;
                }
            }
            int numBytes = reader.read(value);

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        Reader reader = new UTF8Reader(
                csd, this.conChild, this.synchronizationObject);
        long leftToSkip = pos -1;
        long skipped;
        while (leftToSkip > 0) {
            skipped = reader.skip(leftToSkip);
            // Since Reader.skip block until some characters are available,
            // a return value of 0 must mean EOF.
            if (skipped <= 0) {
                throw new EOFException("Reached end-of-stream prematurely");
            }

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