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.


        if (stream.getOutputStream() != null)
          transform(node, stream.getOutputStream(), null, result.getSystemId());
        else if (stream.getWriter() != null) {
          Writer writer = stream.getWriter();
          WriteStream os = Vfs.openWrite(writer);


          if (writer instanceof OutputStreamWriter) {
            String javaEncoding = ((OutputStreamWriter) writer).getEncoding();
            String mimeEncoding = Encoding.getMimeName(javaEncoding);
            transform(node, os, mimeEncoding, result.getSystemId());
          }
          else
            transform(node, os, null, result.getSystemId());


          os.flush();
          os.free();
        }
        else {
          WriteStream os = Vfs.lookup(result.getSystemId()).openWrite();
            
          try {
            transform(node, os, null, result.getSystemId());
          } finally {
            os.close();
          }
        }
      }
      else if (result instanceof DOMResult) {
        DOMResult domResult = (DOMResult) result;

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    try {
      _lineMap = null;
      Properties output = getOutputProperties();


      WriteStream ws;


      if (os instanceof WriteStream)
        ws = (WriteStream) os;
      else {
        ws = Vfs.openWrite(os);


        if (systemId != null)
          ws.setPath(Vfs.lookup(systemId));
        else if (node instanceof QNode) {
          String baseURI = ((QNode) node).getBaseURI();


          if (baseURI != null)
            ws.setPath(Vfs.lookup(baseURI));
        }
      }


      XmlPrinter out = new XmlPrinter(ws);


      String method = (String) output.get(OutputKeys.METHOD);
      out.setMethod(method);
      if (encoding == null)
        encoding = (String) output.get(OutputKeys.ENCODING);
      if (encoding == null && ! (os instanceof WriteStream) &&
          ! "html".equals(method))
        encoding = "UTF-8";
      if (encoding != null)
        out.setEncoding(encoding);
      out.setMimeType((String) output.get(OutputKeys.MEDIA_TYPE));
      String omit = (String) output.get(OutputKeys.OMIT_XML_DECLARATION);


      if (omit == null || omit.equals("false") || omit.equals("no"))
        out.setPrintDeclaration(true);
      
      out.setStandalone((String) output.get(OutputKeys.STANDALONE));
      out.setSystemId((String) output.get(OutputKeys.DOCTYPE_SYSTEM));
      out.setPublicId((String) output.get(OutputKeys.DOCTYPE_PUBLIC));
    
      String indent = (String) output.get(OutputKeys.INDENT);
      if (indent != null)
        out.setPretty(indent.equals("true") || indent.equals("yes"));
      
      String jsp = (String) output.get("caucho.jsp");
      if (jsp != null)
        out.setJSP(jsp.equals("true") || jsp.equals("yes"));
      
      out.setVersion((String) output.get(OutputKeys.VERSION));


      String includeContentType = (String) output.get("include-content-type");
      if (includeContentType != null)
        out.setIncludeContentType(includeContentType.equals("true") ||
                                  includeContentType.equals("yes"));
      
      if (! _stylesheet.getGenerateLocation()) {
      }
      else if (node instanceof CauchoNode) {
        String filename = ((CauchoNode) node).getFilename();
        if (filename != null)
          out.setLineMap(filename);
        else
          out.setLineMap("anonymous.xsl");
      }
      else
        out.setLineMap("anonymous.xsl");


      //out.beginDocument();
      _stylesheet.transform(node, out, this);
      //out.endDocument();
      _lineMap = out.getLineMap();
      if (os != ws) {
        ws.flush();
        ws.free();
      }
    } catch (TransformerException e) {
      throw e;
    } catch (Exception e) {
      throw new TransformerExceptionWrapper(e);

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  private int _lastColumn;


  private SelectResultSetImpl()
  {
    _ws = new WriteStream();
    _ws.setReuseBuffer(true);
    _ts = new TempStream();
    _rs = new ReadStream();
    _rs.setReuseBuffer(true);
    _buf = TempBuffer.allocate();

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        try {
          destPath.getParent().mkdirs();
        } catch (IOException e) {
        }


        WriteStream os = destPath.openWrite();


        try {
          Properties output = stylesheet.getOutputProperties();


          String encoding = (String) output.get("encoding");
          String mimeType = (String) output.get("mime-type");
          String method = (String) output.get("method");


          if (encoding == null && (method == null || ! method.equals("html")))
            encoding = "UTF-8";


          TransformerImpl transformer =
            (TransformerImpl) stylesheet.newTransformer();


          if (encoding != null)
            os.setEncoding(encoding);


          transformer.setProperty("caucho.pwd", Vfs.lookup());


          for (int j = 0; j < keyList.size(); j++) {
            String key = (String) keyList.get(j);
            String value = (String) valueList.get(j);


            transformer.setParameter(key, value);
          }


          transformer.transform(doc, os);
        } finally {
          os.close();
        }
      }
    } catch (Throwable e) {
      while ((e instanceof ExceptionWrapper) &&
             ((ExceptionWrapper) e).getRootCause() != null)

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    try {
      BytesMessage message = _jmsSession.createBytesMessage();


      BytesMessageOutputStream out = new BytesMessageOutputStream(message);
      WriteStream ws = VfsStream.openWrite(out);


      ws.writeStream(is);


      ws.flush();
      out.flush();


      _producer.send(message);
    } catch (JMSException e) {
      throw new ServletException(e);

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      init((WriteStream) os);
    else if (os instanceof EnclosedWriteStream)
      init(((EnclosedWriteStream) os).getWriteStream());
    else {
      _isEnclosedStream = true;
      WriteStream ws = Vfs.openWrite(os);
      try {
        ws.setEncoding("UTF-8");
      } catch (UnsupportedEncodingException e) {
      }
      init(ws);
    }
  }

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  {
    if (writer instanceof EnclosedWriteStream)
      init(((EnclosedWriteStream) writer).getWriteStream());
    else {
      _isEnclosedStream = true;
      WriteStream ws = Vfs.openWrite(writer);
      init(ws);
    }
  }

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   * @param node source DOM node
   */
  public static void print(Path path, Node node)
    throws IOException
  {
    WriteStream os = path.openWrite();


    try {
      new XmlPrinter(os).printXml(node);
    } finally {
      os.close();
    }
  }

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    String depthString = req.getHeader("Depth");
    int depth = Integer.MAX_VALUE;


    OutputStream os = res.getOutputStream();
    WriteStream out = Vfs.openWrite(os);
    out.setEncoding("UTF-8");


    if (_addCrLf)
      out.setNewlineString("\r\n");


    try {
      if ("0".equals(depthString))
        depth = 0;
      else if ("1".equals(depthString))
        depth = 1;


      if (req.getMethod().equals("OPTIONS")) {
        res.setHeader("DAV", "1");


        res.setHeader("MS-Author-Via", "DAV");
        if (_enableWrite)
          res.setHeader("Allow", "OPTIONS, PROPFIND, GET, HEAD, PUT, MKCOL, DELETE, COPY, MOVE, PROPPATCH");
        else if (_enable)
          res.setHeader("Allow", "OPTIONS, PROPFIND, GET, HEAD");
      }
      else if (req.getMethod().equals("PROPFIND")) {
        handlePropfind(req, res, out, depth);
      }
      else if (req.getMethod().equals("GET") ||
               req.getMethod().equals("HEAD")) {
        handleGet(req, res, out);
      }
      else if (req.getMethod().equals("PUT") && _enableWrite) {
        handlePut(req, res, out);
      }
      else if (req.getMethod().equals("MKCOL") && _enableWrite) {
        handleMkcol(req, res, out);
      }
      else if (req.getMethod().equals("DELETE") && _enableWrite) {
        handleDelete(req, res, out);
      }
      else if (req.getMethod().equals("COPY") && _enableWrite) {
        handleCopy(req, res, out, depth);
      }
      else if (req.getMethod().equals("MOVE") && _enableWrite) {
        handleMove(req, res, out);
      }
      else if (req.getMethod().equals("PROPPATCH") && _enableWrite) {
        handleProppatch(req, res, out, depth);
      }
      else if (! _enableWrite &&
               "PUT".equals(req.getMethod()) ||
               "MKCOL".equals(req.getMethod()) ||
               "DELETE".equals(req.getMethod()) ||
               "COPY".equals(req.getMethod()) ||
               "MOVE".equals(req.getMethod()) ||
               "PROPPATCH".equals(req.getMethod())) {
        res.sendError(res.SC_FORBIDDEN);
      }
      else {
        res.sendError(res.SC_NOT_IMPLEMENTED, "Method not implemented");
      }
    } finally {
      out.close();
    }
  }

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      sendError(res, out, 403, "Forbidden", "PUT forbidden");
      return;
    }
    
    WriteStream ws = Vfs.openWrite(os);
    Path path =ws.getPath();
    try {
      InputStream is = req.getInputStream();
      ws.writeStream(is);
    } finally {
      ws.close();
    }
  }

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