Examples of java.io.BufferedInputStream.available()

java.io.BufferedInputStream.available()
Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream. The next invocation might be the same thread or another thread. A single read or skip of this many bytes will not block, but may read or skip fewer bytes.
This method returns the sum of the number of bytes remaining to be read in the buffer (count - pos) and the result of calling the {@link java.io.FilterInputStream#in in}.available(). @return an estimate of the number of bytes that can be read (or skippedover) from this input stream without blocking. @exception IOException if this input stream has been closed byinvoking its {@link #close()} method,or an I/O error occurs.

            }
            else {
                // The reqest has no body, or it has a transfer encoding we do not support.
                // In either case, we read any data available
                log.debug("Other");
                while(in.available() > 0 && ((length = in.read(buffer)) != -1)) {
                    log.debug("Read bytes: "+length);
                    out.write(buffer, 0, length);
                }
            }
            log.debug("Flush");

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            FileInputStream datafis = new FileInputStream(inputFile);
            BufferedInputStream bufin = new BufferedInputStream(datafis);


            byte[] buffer = new byte[this.keySize];
            int len;
            while (bufin.available() != 0) {
                len = bufin.read(buffer);
                sig.update(buffer, 0, len);
            }


            bufin.close();

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            File file = new File(upload_dir+File.separator+fileMap.get("filename"));
            // 取得文件名。
            String title = fileMap.get("title");
            // 以流的形式下载文件。
            InputStream fis = new BufferedInputStream(new FileInputStream(file));
            byte[] buffer = new byte[fis.available()];
            fis.read(buffer);
            fis.close();
            // 清空response
            response.reset();
            // 设置response的Header

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            try
            {
                // read the key, and decode from hex encoding
                BufferedInputStream keystream = 
                    new BufferedInputStream(new FileInputStream(keyfile));
                int len = keystream.available();
                byte[] keyhex = new byte[len];
                keystream.read(keyhex, 0, len);
                key = Hex.decode(keyhex);
            }
            catch (IOException ioe)

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                // stop reading, so we cannot block
                // TODO propery implement support for chunked transfer, i.e. to
                // know when we have read the whole request, and therefore allow
                // the reading to block
                log.debug("Chunked");
                while(in.available() > 0 && ((length = in.read(buffer)) != -1)) {
                    out.write(buffer, 0, length);
                }
            }
            else {
                // The reqest has no body, or it has a transfer encoding we do not support.

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            }
            else {
                // The reqest has no body, or it has a transfer encoding we do not support.
                // In either case, we read any data available
                log.debug("Other");
                while(in.available() > 0 && ((length = in.read(buffer)) != -1)) {
                    log.debug("Read bytes: "+length);
                    out.write(buffer, 0, length);
                }
            }
            log.debug("Flush");

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    public static byte[] getBytesFromResource( String resource ) throws IOException
    {
        InputStream is = ClassLoader.getSystemClassLoader().getResourceAsStream( resource );


        BufferedInputStream stream = new BufferedInputStream( is );
        int len = stream.available();
        byte[] bytes = new byte[len];
        stream.read( bytes, 0, len );


        return bytes;
    }

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            try
            {
                // read the key, and decode from hex encoding
                BufferedInputStream keystream = 
                    new BufferedInputStream(new FileInputStream(keyfile));
                int len = keystream.available();
                byte[] keyhex = new byte[len];
                keystream.read(keyhex, 0, len);
                key = Hex.decode(keyhex);
            }
            catch (IOException ioe)

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                        }
                    }


                    // fix problem if filesize not in content length
                    if (getFileSizeFromStream) {
                        fileSize = curSize + urlStream.available();
                    }


                    // notify of download progress
                    if (curSize > 0 && (curSize % 10) == 0) {
                        int curPercent = (curSize * 100) / fileSize;

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            InputStream stream = connection.getInputStream();
            Debug.log("getContentLength is :"+contentLength);


            in = new BufferedInputStream(stream);


            long totalBytes = in.available();
            Debug.log("totalBytes is : "+totalBytes);


            byte[] b = new byte[1024];


            FileOutputStream file = new FileOutputStream(libPath);

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