public static void downloadSource()

in gshell/gshell-obr/src/main/java/org/apache/servicemix/kernel/gshell/obr/FileUtil.java [36:95]
53 lines of code
7 McCabe index (conditional complexity)

    public static void downloadSource(
        PrintWriter out, PrintWriter err,
        URL srcURL, String dirStr, boolean extract)
    {
        // Get the file name from the URL.
        String fileName = (srcURL.getFile().lastIndexOf('/') > 0)
            ? srcURL.getFile().substring(srcURL.getFile().lastIndexOf('/') + 1)
            : srcURL.getFile();

        try
        {
            out.println("Connecting...");

            File dir = new File(dirStr);
            if (!dir.exists())
            {
                err.println("Destination directory does not exist.");
            }
            File file = new File(dir, fileName);

            OutputStream os = new FileOutputStream(file);
            URLConnection conn = srcURL.openConnection();
            int total = conn.getContentLength();
            InputStream is = conn.getInputStream();

            if (total > 0)
            {
                out.println("Downloading " + fileName
                    + " ( " + total + " bytes ).");
            }
            else
            {
                out.println("Downloading " + fileName + ".");
            }
            byte[] buffer = new byte[4096];
            int count = 0;
            for (int len = is.read(buffer); len > 0; len = is.read(buffer))
            {
                count += len;
                os.write(buffer, 0, len);
            }

            os.close();
            is.close();

            if (extract)
            {
                is = new FileInputStream(file);
                JarInputStream jis = new JarInputStream(is);
                out.println("Extracting...");
                unjar(jis, dir);
                jis.close();
                file.delete();
            }
        }
        catch (Exception ex)
        {
            err.println(ex);
        }
    }