Examples of com.caucho.vfs.WriteStream

com.caucho.vfs.WriteStream
A fast bufferered output stream supporting both character and byte data. The underlying stream sources are provided by StreamImpl classes, so all streams have the same API regardless of the underlying implementation.
OutputStream and Writers are combined. The write routines write bytes and the print routines write characters.
Most applications will use the Path routines to create their own streams. Specialized applications, like servers, need the capability of recycling streams.

   */
  private void openLog()
  {
    closeLogStream();


    WriteStream os = _os;
    _os = null;


    IoUtil.close(os);


    Path path = getPath();

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                 e);
    }


    try {
      if (path.exists()) {
        WriteStream os = null;
        OutputStream out = null;


        // *.gz and *.zip are copied.  Others are just renamed
        if (savedName.endsWith(".gz")) {
          os = savedPath.openWrite();
          out = new GZIPOutputStream(os);
        }
        else if (savedName.endsWith(".zip")) {
          os = savedPath.openWrite();


          ZipOutputStream zip = new ZipOutputStream(os);
          String entryName = savedName.substring(0, savedName.length() - 4);
          ZipEntry entry = new ZipEntry(entryName);
          zip.putNextEntry(entry);


          out = zip;
        }


        if (out != null) {
          try {
            path.writeToStream(out);
          } finally {
            try {
              out.close();
            } catch (Exception e) {
              // can't log in log rotation routines
            }


            try {
              if (out != os)
                os.close();
            } catch (Exception e) {
              // can't log in log rotation routines
            }
          }
        }

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   * Tries to close the log.
   */
  private void closeLogStream()
  {
    try {
      WriteStream os = _os;
      _os = null;


      if (os != null)
        os.close();
    } catch (Throwable e) {
      // can't log in log routines
    }


    try {
      WriteStream zipOut = _zipOut;
      _zipOut = null;


      if (zipOut != null)
        zipOut.close();
    } catch (Throwable e) {
      // can't log in log routines
    }
  }

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    throws IOException
  {
    CharBuffer line = CharBuffer.allocate();
    String topId = null;
    int count = 1;
    WriteStream ws = null;
    IntMap messages = new IntMap();


    try {
      while (true) {
        do {
          line.clear();
          if (! is.readLine(line)) {
            if (ws != null)
              ws.println("</message>");
            return false;
          }
          if (ws != null && ! line.startsWith("From ")) {
            for (int i = 0; i < line.length(); i++) {
              char ch = line.charAt(i);
              if (ch == '<')
                ws.print("&lt;");
              else
                ws.print(ch);
            }
            ws.println();
          }
        } while (! line.startsWith("From "));


        if (ws != null) {
          ws.println("</message>");
          ws.close();
          ws = null;
        }




        String date = null;
        String subject = null;
        String from = null;
        String id = null;
        String references = null;


        do {
          line.clear();
          if (! is.readLine(line))
            return false;
          if (line.length() == 0)
            break;


          String lower = line.toString().toLowerCase(Locale.ENGLISH);


          if (lower.startsWith("subject: ")) {
            subject = line.substring("subject: ".length()).trim();


            if (subject.toLowerCase(Locale.ENGLISH).startsWith("re:"))
              subject = subject.substring(3).trim();
          }
          else if (lower.startsWith("from: ")) {
            from = line.substring("from: ".length());
          }
          else if (lower.startsWith("date: ")) {
            date = line.substring("from: ".length());
          }
        } while (line.length() > 0);


        int index = messages.get(subject);


        if (index >= 0) {
          ws = dst.lookup("" + index + ".xtp").openAppend();
        }
        else {
          if (subject != null && ! subject.equals(""))
            messages.put(subject, count);


          ws = dst.lookup("" + count++ + ".xtp").openWrite();
          ws.println("<title>" + subject + "</title>");
        }
        ws.println("<em>" + from + "</em>");
        ws.println("<date>" + date + "</date>");
        ws.println("<message>");
      }
    } finally {
      if (ws != null)
        ws.close();
    }
  }

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  }


  public ESBase call(Call eval, int length) throws Throwable
  {
    ESBase evalThis = eval.getArg(-1);
    WriteStream stream = null;


    try {
      stream = (WriteStream) evalThis.toJavaObject();
    } catch (Exception e) {
    }

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  }


  private static WriteStream getWriteStream(Call eval) throws Throwable
  {
    ESBase evalThis = eval.getArg(-1);
    WriteStream stream = null;


    try {
      stream = (WriteStream) evalThis.toJavaObject();
    } catch (Exception e) {
    }

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    return stream;
  }


  static public ESBase write(Call eval, int length) throws Throwable
  {
    WriteStream stream = getWriteStream(eval);


    try {
      for (int i = 0; i < length; i++)
        stream.print(eval.getArg(i).toString());
    } catch (IOException e) {
      return ESBoolean.FALSE;
    }


    return eval.getArg(-1);

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    return eval.getArg(-1);
  }


  static public ESBase writeln(Call eval, int length) throws Throwable
  {
    WriteStream stream = getWriteStream(eval);


    try {
      for (int i = 0; i < length; i++)
        stream.print(eval.getArg(i).toString());
      stream.println();
    } catch (IOException e) {
      return ESBoolean.FALSE;
    }


    return eval.getArg(-1);

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    return eval.getArg(-1);
  }


  static public ESBase flush(Call eval, int length) throws Throwable
  {
    WriteStream stream = getWriteStream(eval);


    try {
      stream.flush();
    } catch (IOException e) {
      return ESBoolean.FALSE;
    }


    return eval.getArg(-1);

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    return eval.getArg(-1);
  }


  static public ESBase close(Call eval, int length) throws Throwable
  {
    WriteStream stream = getWriteStream(eval);


    try {
      stream.close();
    } catch (IOException e) {
      return ESBoolean.FALSE;
    }


    return eval.getArg(-1);

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