Example usage for java.io PrintWriter PrintWriter

Introduction

In this page you can find the example usage for java.io PrintWriter PrintWriter.

Prototype

public PrintWriter(File file) throws FileNotFoundException

Source Link

Document

Creates a new PrintWriter, without automatic line flushing, with the specified file.

Usage

From source file:Main.java

/**
 * Extract the full stacktrace from {@code t} into a String for logging
 * @param t an exception/*w  w  w  .j a  v  a 2 s  .  co m*/
 * @return a string representation of the full stack trace
 */
public static String sprintFullStack(final Throwable t) {
    if (t == null) {
        return "";
    }

    StringWriter writer = new StringWriter();
    t.printStackTrace(new PrintWriter(writer));
    return writer.toString();
}

From source file:com.textocat.textokit.commons.io.IoUtils.java

public static PrintWriter openPrintWriter(File file, String encoding, boolean append) throws IOException {
    return new PrintWriter(openBufferedWriter(file, encoding, append));
}

From source file:org.thymeleaf.spring4.view.FragmentRenderer.java

public static String render(final ThymeleafView view, final IFragmentSpec fragmentSpec, ModelMap modelMap,
        HttpServletRequest request, HttpServletResponse response) throws Exception {
    final StringWriter htmlStringWriter = new StringWriter();

    new ThymeleafView() {

        @Override/*from w  w  w  .  ja  v a 2s .  co m*/
        public void render(Map<String, ?> model, HttpServletRequest request, HttpServletResponse response)
                throws Exception {
            HttpServletResponseWrapper wrapper = new HttpServletResponseWrapper(response) {

                @Override
                public PrintWriter getWriter() throws IOException {
                    return new PrintWriter(htmlStringWriter);
                }

            };

            view.renderFragment(fragmentSpec, model, request, wrapper);
        }

    }.render(modelMap, request, response);

    return htmlStringWriter.toString();
}

From source file:MainClass.java

public void run() {
      try {/*from  w ww  .ja  v a2s.c o m*/
          BufferedReader br = new BufferedReader(new InputStreamReader(sock.getInputStream()));
          PrintWriter pw = new PrintWriter(sock.getOutputStream());

          String data = br.readLine();
          pw.println("What is she?");
          pw.close();
          sock.close();
      } catch (IOException ioe) {
          // Client disconnected
      }
  }

From source file:com.eyeq.pivot4j.util.CssWriter.java

/**
 * @param writer/* w  w  w.  j av a 2 s.  c o m*/
 */
public CssWriter(Writer writer) {
    if (writer == null) {
        throw new NullArgumentException("writer");
    }

    this.writer = new PrintWriter(writer);
}

From source file:SimpleProxyServer.java

/**
 * runs a single-threaded proxy server on
 * the specified local port. It never returns.
 *///from  w  ww  .ja  v  a 2  s  .com
public static void runServer(String host, int remoteport, int localport) throws IOException {
    // Create a ServerSocket to listen for connections with
    ServerSocket ss = new ServerSocket(localport);

    final byte[] request = new byte[1024];
    byte[] reply = new byte[4096];

    while (true) {
        Socket client = null, server = null;
        try {
            // Wait for a connection on the local port
            client = ss.accept();

            final InputStream streamFromClient = client.getInputStream();
            final OutputStream streamToClient = client.getOutputStream();

            // Make a connection to the real server.
            // If we cannot connect to the server, send an error to the
            // client, disconnect, and continue waiting for connections.
            try {
                server = new Socket(host, remoteport);
            } catch (IOException e) {
                PrintWriter out = new PrintWriter(streamToClient);
                out.print("Proxy server cannot connect to " + host + ":" + remoteport + ":\n" + e + "\n");
                out.flush();
                client.close();
                continue;
            }

            // Get server streams.
            final InputStream streamFromServer = server.getInputStream();
            final OutputStream streamToServer = server.getOutputStream();

            // a thread to read the client's requests and pass them
            // to the server. A separate thread for asynchronous.
            Thread t = new Thread() {
                public void run() {
                    int bytesRead;
                    try {
                        while ((bytesRead = streamFromClient.read(request)) != -1) {
                            streamToServer.write(request, 0, bytesRead);
                            streamToServer.flush();
                        }
                    } catch (IOException e) {
                    }

                    // the client closed the connection to us, so close our
                    // connection to the server.
                    try {
                        streamToServer.close();
                    } catch (IOException e) {
                    }
                }
            };

            // Start the client-to-server request thread running
            t.start();

            // Read the server's responses
            // and pass them back to the client.
            int bytesRead;
            try {
                while ((bytesRead = streamFromServer.read(reply)) != -1) {
                    streamToClient.write(reply, 0, bytesRead);
                    streamToClient.flush();
                }
            } catch (IOException e) {
            }

            // The server closed its connection to us, so we close our
            // connection to our client.
            streamToClient.close();
        } catch (IOException e) {
            System.err.println(e);
        } finally {
            try {
                if (server != null)
                    server.close();
                if (client != null)
                    client.close();
            } catch (IOException e) {
            }
        }
    }
}

From source file:SSLSimpleServer.java

public void run() {
    try {//from w  ww .  ja  va  2s .co m
        BufferedReader br = new BufferedReader(new InputStreamReader(sock.getInputStream()));
        PrintWriter pw = new PrintWriter(sock.getOutputStream());

        String data = br.readLine();
        pw.println(data);
        pw.close();
        sock.close();
    } catch (IOException ioe) {
        // Client disconnected
    }
}

From source file:Main.java

/**
 * Returns a stack trace of the {@code Throwable} as a {@code String}.
 * //  www  .ja v  a2  s. co m
 * @param throwable
 *          The throwable for which to create the stack trace.
 * @param expectNull
 *          True if null should be returned when {@code throwable} is null or
 *          false to return "" when {@code throwable} is null
 * @return null if {@code throwable} is null and {@code expectNull} is true,
 *         "" if {@code throwable} is null and {@code expectNull} is false,
 *         otherwise the stack trace for {@code throwable}
 */
public static String stackTraceToString(final Throwable throwable, final boolean expectNull) {
    if (throwable == null) {
        if (expectNull == true) {
            return null;
        }

        return "";
    }

    StringWriter stringWriter = new StringWriter();
    PrintWriter printWriter = new PrintWriter(stringWriter);
    throwable.printStackTrace(printWriter);
    printWriter.close();
    return stringWriter.toString();
}

From source file:com.github.rnewson.couchdb.lucene.Utils.java

public static String error(final int code, final Throwable t) {
    final StringWriter writer = new StringWriter();
    final PrintWriter printWriter = new PrintWriter(writer);
    if (t.getMessage() != null) {
        printWriter.append(t.getMessage());
        printWriter.append("\n");
    }// ww w.j  a v a2  s . c o m
    t.printStackTrace(printWriter);
    return new JSONObject().element("code", code).element("body", "<pre>" + writer + "</pre>").toString();
}

From source file:com.aqnote.shared.cryptology.cert.io.PKCSTransformer.java

public static String getCrtFileString(X509Certificate cert) throws Exception {
    CircularByteBuffer cbb = new CircularByteBuffer(CircularByteBuffer.INFINITE_SIZE);
    PEMWriter pemWriter = new PEMWriter(new PrintWriter(cbb.getOutputStream()));
    cbb.getOutputStream().flush();/*w  w w.j a  va 2  s .co  m*/
    cbb.getOutputStream().close();
    pemWriter.writeObject(cert);
    pemWriter.flush();
    pemWriter.close();
    String crtFile = StreamUtil.stream2Bytes(cbb.getInputStream(), StandardCharsets.UTF_8);
    cbb.getInputStream().close();
    cbb.clear();
    return crtFile;
}