Examples of java.io.BufferedReader.mark()

java.io.BufferedReader.mark()
Set a Mark position in this BufferedReader. The parameter readLimit indicates how many characters can be read before a mark is invalidated. Sending reset() will reposition the reader back to the marked position provided readLimit has not been surpassed. @param readlimit an int representing how many characters must be read before invalidating the mark. @throws IOException If an error occurs attempting mark this BufferedReader. @throws IllegalArgumentException If readlimit is < 0

        assertEquals("Assert 8:", '3', carray[3]);
        assertEquals("Assert 9:", '4', br.read());
        assertEquals("Assert 10:", -1, br.read());


        BufferedReader reader = new BufferedReader(new StringReader("01234"));
        reader.mark(Integer.MAX_VALUE);
        reader.read();
        reader.close();
  }


  /**

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      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);
    } catch (IOException e) {

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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) {

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    static void printBody(PrintWriter pw, HttpServletRequest req) throws IOException
    {
        BufferedReader in = req.getReader() ;
        if ( req.getContentLength() > 0 )
            // Need +2 because last line may not have a CR/LF on it.
            in.mark(req.getContentLength()+2) ;
        else
            // This is a dump - try to do something that works, even if inefficient.
            in.mark(100*1024) ;

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        if ( req.getContentLength() > 0 )
            // Need +2 because last line may not have a CR/LF on it.
            in.mark(req.getContentLength()+2) ;
        else
            // This is a dump - try to do something that works, even if inefficient.
            in.mark(100*1024) ;




        while(in.ready())
        {
            pw.println(in.readLine());

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        int count = 0;
        try {
            openInput();
            BufferedReader reader = new BufferedReader(new InputStreamReader(in, charset));
            // if necessary, strip the BOM from the front of the file
            reader.mark(1);
            if (reader.read() != UTF8_BOM) {
                reader.reset();
            }
            ScriptReader r = new ScriptReader(reader);
            while (true) {

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    @Override
    public ReadableRepresentation readRepresentation(Reader reader) {
        try {
            Reader bufferedReader = new BufferedReader(reader);
            bufferedReader.mark(1);
            char firstChar = (char) bufferedReader.read();
            bufferedReader.reset();


            Class<? extends RepresentationReader> readerClass;
            switch (firstChar) {

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        StringBuilder sb = new StringBuilder();
        final int MAX_SIZE = 1024 * 2;
        int c;
        boolean insideBlock = false;
        int read = 0;
        br.mark(MAX_SIZE);
        try {
            while ((c = br.read()) != -1) {
                read++;
                if (read > MAX_SIZE) {
                    break;

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        MockServletInputStream input = new MockServletInputStream(body.getBytes());


        Dispatcher dispatcher = new Dispatcher();


        BufferedReader buffered = new BufferedReader(new InputStreamReader(input));
        buffered.mark(2048);


        Map map = dispatcher.readOpPost(buffered);


        assertNotNull(map);
        assertEquals("Hello", map.get("request"));

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        output.flush();
        output.close();


        BufferedReader input = new BufferedReader(new InputStreamReader(new FileInputStream(file)));


        input.mark(8192);


        Request req = new Request();
        req.setInput(input);


        Object object = dispatcher.parseRequestXML(null,input, req);

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