Examples of com.caucho.vfs.ReadStream

com.caucho.vfs.ReadStream
A fast bufferered input 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.
Dynamic streams, like tcp and http will properly flush writes before reading input. And random access streams, like RandomAccessFile, can use the same API as normal streams.
Most applications will use the Path routines to create their own streams. Specialized applications, like servers, need the capability of recycling streams.

    throws IOException
  {
    int length = 0;
    int ch;


    ReadStream is = _next;


    // skip whitespace
    for (ch = is.read();
         ch == ' ' || ch == '\t' || ch == '\r' || ch == '\n';
         ch = is.read()) {
    }


    // XXX: This doesn't properly handle the case when when the browser
    // sends headers at the end of the data.  See the HTTP/1.1 spec.
    for (; ch > 0 && ch != '\r' && ch != '\n'; ch = is.read()) {
      if ('0' <= ch && ch <= '9')
        length = 16 * length + ch - '0';
      else if ('a' <= ch && ch <= 'f')
        length = 16 * length + ch - 'a' + 10;
      else if ('A' <= ch && ch <= 'F')
        length = 16 * length + ch - 'A' + 10;
      else if (ch == ' ' || ch == '\t') {
        //if (dbg.canWrite())
        //  dbg.println("unexpected chunk whitespace.");
      }
      else {
        StringBuilder sb = new StringBuilder();


        sb.append((char) ch);
        for (int ch1 = is.read();
             ch1 >= 0 && ch1 != '\r' && ch1 != '\n';
             ch1 = is.read()) {
          sb.append((char) ch1);
        }


        throw new IOException("HTTP/1.1 protocol error: bad chunk at"
                              + " '" + sb + "'"
                              + " 0x" + Integer.toHexString(ch)
                              + " length=" + length);
      }
    }


    if (ch == '\r')
      ch = is.read();


    return length;
  }

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   * Parses the XTP file as either an XML document or an HTML document.
   */
  private CauchoDocument parseXtp()
    throws IOException, ServletException
  {
    ReadStream is = _sourcePath.openRead();
    try {
      XmlParser parser;
      
      if (_strictXml) {
        parser = new Xml();
        parser.setEntitiesAsText(_entitiesAsText);
      }
      else {
        parser = new Html();
        parser.setAutodetectXml(true);
        parser.setEntitiesAsText(true);
        // parser.setXmlEntitiesAsText(entitiesAsText);
        parser.setToLower(_toLower);
      }


      parser.setResinInclude(true);
      parser.setJsp(true);


      return (CauchoDocument) parser.parseDocument(is);
    } catch (Exception e) {
      JspParseException jspE = JspParseException.create(e);
      
      jspE.setErrorPage(_errorPage);
      
      throw jspE;
    } finally {
      is.close();
    }
  }

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    Path tempDir = _rootDir.getParent().lookup(".temp");
    Path dependPath = _rootDir.lookup("META-INF/resin-rar.timestamp");


      // XXX: change to a hash
    if (dependPath.canRead()) {
      ReadStream is = null;
      ObjectInputStream ois = null;
      try {
        is = dependPath.openRead();
        ois = new ObjectInputStream(is);


        long lastModified = ois.readLong();
        long length = ois.readLong();


        if (lastModified == rar.getLastModified() &&
            length == rar.getLength())
          return;
      } catch (IOException e) {
      } finally {
        try {
          if (ois != null)
            ois.close();
        } catch (IOException e) {
        }


        if (is != null)
          is.close();
      }
    }


    try {
      if (log.isLoggable(Level.INFO))
        log.info("expanding rar " + rar + " to " + tempDir);


      
      if (! tempDir.equals(expandDir)) {
        tempDir.removeAll();
      }
      tempDir.mkdirs();


      ReadStream rs = rar.openRead(); 
      ZipInputStream zis = new ZipInputStream(rs);


      try {
        ZipEntry entry;


        byte []buffer = new byte[1024];
      
        while ((entry = zis.getNextEntry()) != null) {
          String name = entry.getName();
          Path path = tempDir.lookup(name);


          if (entry.isDirectory())
            path.mkdirs();
          else {
            long length = entry.getSize();
            long lastModified = entry.getTime();
            path.getParent().mkdirs();


            WriteStream os = path.openWrite();
            try {
              int len;
              while ((len = zis.read(buffer, 0, buffer.length)) > 0)
                os.write(buffer, 0, len);
            } catch (IOException e) {
              log.log(Level.FINE, e.toString(), e);
            } finally {
              os.close();
            }


            if (lastModified > 0)
              path.setLastModified(lastModified);
          }
        }
      } finally {
        try {
          zis.close();
        } catch (IOException e) {
        }


        rs.close();
      }


      if (! tempDir.equals(expandDir)) {
        if (log.isLoggable(Level.INFO))
          log.info("moving rar " + rar + " to " + expandDir);

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      HttpBufferStore httpBuffer = server.allocateHttpBuffer();


      startRequest(httpBuffer);
      startInvocation();


      ReadStream is = getRawRead();
      WriteStream os = getRawWrite();


      _filter.init(is, os);
      _writeStream.init(_filter);
      // _writeStream.setWritePrefix(3);

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      int sublen = _pendingData;
      if (length < sublen)
        sublen = length;


      ReadStream is = _request.getRawRead();


      is.readAll(buf, offset, sublen);


      _pendingData -= sublen;


      if (_pendingData == 0) {
        if (_pad > 0)
          is.skip(_pad);


        _pad = 0;


        int version = is.read();
        int code = is.read();
        int id = (is.read() << 8) + is.read();
        _pendingData = (is.read() << 8) + is.read();
        _pad = is.read();
        int reserved = is.read();


        if (reserved < 0 || code != FCGI_STDIN)
          _pendingData = 0;
      }

View Full Code Here

  }


  private boolean checkFileDescriptor()
  {
    try {
      ReadStream is = _resin.getResinConf().openRead();
      is.close();


      return true;
    } catch (IOException e) {
      log.severe(L.l("Restarting due to file descriptor failure:\n{0}",
                     e));

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    char []cBuf = buf.getBuffer();
    int len;


    PrintWriter out = response.getWriter();
    
    ReadStream rs = _cacheEntry.openRead();
    rs.setEncoding("UTF-8");
    try {
      while ((len = rs.read(cBuf, 0, cBuf.length)) > 0) {
        out.write(cBuf, 0, len);
      }
    } finally {
      rs.close();
    }


    TempCharBuffer.free(buf);
  }

View Full Code Here

  }


  static ArrayList<Depend> parseDepend(Path dependPath)
    throws IOException
  {
    ReadStream is = dependPath.openRead();
    try {
      ArrayList<Depend> dependList = new ArrayList<Depend>();
      
      String name;


      while ((name = parseName(is)) != null) {
        long digest = Long.parseLong(parseName(is));


        Depend depend = new Depend(dependPath.lookup(name), digest);


        dependList.add(depend);
      }


      return dependList;
    } finally {
      is.close();
    }
  }

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    String string = arg.toString();


    Global resin = Global.getGlobalProto();
    ESBase context = eval.getFunctionContext();
    Script script = null;
    ReadStream is = null;
    try {
      Parser parser = new Parser();
      is = Vfs.openString(string);
      script = parser.parseEval(is, "eval", 1);
    } catch (IOException e) {
      e.printStackTrace();
    } finally {
      if (is != null)
        is.close();
    }


    ESCallable jsClass = script.initClass(resin, eval.getGlobal());
    
    return jsClass.call(2, eval.caller, 0);

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    Global resin = Global.getGlobalProto();
    Script script = null;
    try {
      Parser parser = new Parser();
      ReadStream is = Vfs.openString(sbuf.toString());
      script = parser.parse(is, "anonymous", 1);
      is.close();
    } catch (IOException e) {
      e.printStackTrace();
    }


    ESCallable jsClass = script.initClass(resin, eval.getGlobal());

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