Examples of java.io.InputStream.mark()

java.io.InputStream.mark()
Set a Mark position in this InputStream. The parameter readLimit indicates how many bytes can be read before a mark is invalidated. Sending reset() will reposition the Stream back to the marked position provided readLimit has not been surpassed.
This default implementation does nothing and concrete subclasses must provide their own implementations. @param readlimit the number of bytes to be able to read before invalidating the mark.

                            mimeType = mimeType + "; charset=UTF-8";
                        } else {
                            // detect charset of html-files
                            if((path.endsWith("html") || path.endsWith("htm"))) {
                                // save position
                                fis.mark(1000);
                                // scrape document to look up charset
                                final ScraperInputStream htmlFilter = new ScraperInputStream(fis,"UTF-8",new DigestURI("http://localhost"),null,false);
                                final String charset = htmlParser.patchCharsetEncoding(htmlFilter.detectCharset());
                                if(charset != null)
                                    mimeType = mimeType + "; charset="+charset;

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                response.commit();


                if (response.getKeepAlive()) {
                    InputStream is = request.getRawInputStream();
                    if (is != null && is.markSupported()) {
                        is.mark(4);
                        if (is.read() != '\r' || is.read() != '\n')
                            is.reset();
                    }
                } else
                    break;

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            InputStream in = httpRequest.getInputStream();
            if (in != null) {
                // use a buffered input stream to find out whether there actually
                // is a request body
                InputStream bin = new BufferedInputStream(in);
                bin.mark(1);
                boolean isEmpty = -1 == bin.read();
                bin.reset();
                if (!isEmpty) {
                    requestDocument = DomUtil.parseDocument(bin);
                }

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        } catch (RuntimeException e) {
            LOGGER.error(e.getMessage());
            throw e;
        }
        try {
            is.mark(256 * 1024);
            JarInputStream jar = new JarInputStream(is);
            Manifest m = jar.getManifest();
            if(m == null) {
                throw new BundleException("Manifest not present in the first entry of the zip " + bundleLocation);
            }

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        byte[] dst = new byte[src.length];
        ByteBuffer bb = ByteBuffer.wrap(src);
        InputStream is = new ByteBufferInputStream(bb);


        assertEquals(true, is.markSupported());
        is.mark(src.length);
        assertEquals(dst.length, is.read(dst));
        assertArrayEquals(src, dst);
        assertEquals(-1, is.read());
        is.close();

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            rewindStream((InputStream)in, hdrLen);
        } else {
            final InputStream srcIn = (InputStream)in;
            final boolean markSet = srcIn.markSupported();
            if (markSet) {
                srcIn.mark(MAX_STREAM_HEADER_LENGTH);
            }
            byte[] header = new byte[MAX_STREAM_HEADER_LENGTH];
            int read = in.read(header);
            // Expect at least two header bytes.
            if (SanityManager.DEBUG) {

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    final LZ4FastDecompressor decompressor = LZ4Factory.fastestInstance().fastDecompressor();
    InputStream is = new LZ4BlockInputStream(open(compressed.toByteArray()), decompressor, checksum);
    assertFalse(is.markSupported());
    try {
      is.mark(1);
      is.reset();
      assertFalse(true);
    } catch (IOException e) {
      // OK
    }

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        long nextPos = 0;
        String chunkOfLastLine = null;
        int attemptCount = 0;
        String s = "";
        while (attemptCount < MAX_ATTEMPT_COUNT) {
            in.mark(FOUR_KB + (int) nextPos);
            if (nextPos > 0) {
                long skipped = in.skip(nextPos);
                if (skipped != nextPos) {
                    break;
                }

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      int bytesRead=-1;  
      int size = stateSize;
      try {                              
        while(size>0)
        {
          stream.mark(markSize);
          bytesRead=stream.read(buffer);
          ostream.write(buffer);
          stream.reset();                  
          size = size-bytesRead;          
        }

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            int start = 0;
            for (int i = 0; i < fragment.length; i++) {
                int offset = start;
                int length = fragment[i] - offset;
                InputStream in = new ByteArrayInputStream(bytes, offset, bytes.length - offset);
                in.mark(bytes.length - offset);
                ModelInput<Object> reader = unsafe.createInput(model.unwrap().getClass(), "hello", in,
                        offset, length);
                try {
                    while (true) {
                        Object buffer = loaded.newModel("Tuple").unwrap();

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