Example usage for java.io PrintWriter flush

List of usage examples for java.io PrintWriter flush

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Introduction

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

Prototype

public void flush()

Source Link

Document

Flushes the stream.

Usage

From source file:com.mockey.ui.InjectRealUrlPerServiceServlet.java

/**
 * Injects real URLs per service. For example, if real url is
 * //from  w  w  w.ja  va2s .co m
 * <pre>
 * http://qa1.google.com/search
 * </pre>
 * 
 * and match is
 * 
 * <pre>
 * http://qa3.google.com/
 * </pre>
 * 
 * then this method builds URL as
 * 
 * <pre>
 * http://qa3.google.com/search
 * </pre>
 * 
 * 
 * @param req
 *            basic request
 * @param resp
 *            basic resp
 * @throws ServletException
 *             basic
 * @throws IOException
 *             basic
 */
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    String matchPattern = req.getParameter("match");
    String[] replacementArray = req.getParameterValues("replacement[]");
    JSONObject successOrFail = new JSONObject();
    if (matchPattern != null && replacementArray != null) {

        for (Long serviceId : store.getServiceIds()) {
            Service service = store.getServiceById(serviceId);
            List<Url> newUrlList = new ArrayList<Url>();
            // Build a list of real Url objects.
            for (Url realUrl : service.getRealServiceUrls()) {
                for (String replacement : replacementArray) {
                    // We don't want to inject empty string match
                    if (replacement.trim().length() > 0) {
                        Url newUrl = new Url(realUrl.getFullUrl().replaceAll(matchPattern, replacement));
                        if (!service.hasRealServiceUrl(newUrl)) {
                            newUrlList.add(newUrl);
                            // Note: you should not save or update
                            // the realServiceUrl or service while
                            // iterating through the list itself, or you'll
                            // get
                            // a java.util.ConcurrentModificationException
                            // Wait until 'after'
                        }
                    }
                }
            }
            // Save/update this new Url object list.
            for (Url newUrl : newUrlList) {
                service.saveOrUpdateRealServiceUrl(newUrl);
            }

            // Now update the service.
            store.saveOrUpdateService(service);
        }

        try {
            successOrFail.put("success", "URL injecting complete.");
        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    } else {
        try {
            successOrFail.put("fail", "You didn't pass any match or inject URL arguments.  ");
        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    JSONObject responseObject = new JSONObject();

    try {
        responseObject.put("result", successOrFail);
    } catch (JSONException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    PrintWriter out = resp.getWriter();
    out.println(responseObject.toString());
    out.flush();
    out.close();
    return;
}

From source file:cn.vlabs.umt.ui.actions.ManageApplicationAction.java

public ActionForward loadApp(ActionMapping mapping, ActionForm form, HttpServletRequest request,
        HttpServletResponse response) throws IOException {
    String idStr = request.getParameter("q");
    AppService service = getAppService();
    int appid = Integer.parseInt(idStr);
    Application app = service.getApplication(appid);
    String json = "";
    if (app != null) {
        json = "[{" + "appname:'" + escape(app.getName()) + "'" + ",url:'" + escape(app.getUrl()) + "'"
                + ",description:'" + escape(app.getDescription()) + "'" + ",serverType:'"
                + escape(app.getServerType()) + "'" + ",allowOperate:" + app.isAllowOperate() + "}]";
    }//from w w w  .  j a  va2 s.c om
    response.setCharacterEncoding("UTF-8");
    PrintWriter writer = response.getWriter();
    writer.write(json);
    writer.close();
    writer.flush();
    return null;
}

From source file:org.freelectron.leobel.testlwa.models.AlertsFileDataStore.java

@Override
public synchronized void writeToDisk(final List<Alert> alerts, final ResultListener listener) {
    sExecutor.execute(new Runnable() {
        @Override//from  ww  w.j av  a2s .  com
        public void run() {
            ObjectWriter writer = ObjectMapperFactory.getObjectWriter();
            PrintWriter out = null;
            try {
                out = new PrintWriter(ALARM_FILE);
                out.print(writer.writeValueAsString(alerts));
                out.flush();
                listener.onSuccess();
            } catch (IOException e) {
                Log.d("Failed to write to disk", e.getMessage(), e);
                listener.onFailure();
            } finally {
                IOUtils.closeQuietly(out);
            }
        }
    });
}

From source file:com.amazon.alexa.avs.AlertsFileDataStore.java

@Override
public synchronized void writeToDisk(List<Alert> alerts, final ResultListener listener) {
    sExecutor.execute(new Runnable() {
        @Override/*from   w  w w . j  av a2s .  c o  m*/
        public void run() {
            ObjectWriter writer = ObjectMapperFactory.getObjectWriter();
            PrintWriter out = null;
            try {
                out = new PrintWriter(ALARM_FILE);
                out.print(writer.writeValueAsString(alerts));
                out.flush();
                listener.onSuccess();
            } catch (IOException e) {
                log.error("Failed to write to disk", e);
                listener.onFailure();
            } finally {
                IOUtils.closeQuietly(out);
            }
        }
    });
}

From source file:com.webguys.djinn.marid.util.BuiltinAnnotationProcessor.java

private void saveDatabase() throws Exception {
    if (!db.exists() && !db.createNewFile()) {
        throw new Exception(String.format("Unable to create the db file: %s", DB_PATHNAME));
    }/* w  ww  . ja v  a  2 s.c  o  m*/

    PrintWriter writer = new PrintWriter(db, "UTF-8");
    IOUtils.writeLines(this.builtins, IOUtils.LINE_SEPARATOR_UNIX, writer);
    writer.flush();
    IOUtils.closeQuietly(writer);
}

From source file:com.fengduo.spark.commons.component.ComponentController.java

@ExceptionHandler(Throwable.class)
public ModelAndView handleIOException(Throwable e) throws Throwable {

    if (AnnotationUtils.findAnnotation(e.getClass(), ResponseStatus.class) != null) {
        throw e;//  w w  w.j  a v  a  2  s  .co m
    }

    if (request == null && response == null) {
        throw e;
    }

    if (request == null && response != null) {
        response.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charset=UTF-8");
        OutputStream out = response.getOutputStream();
        PrintWriter pw = new PrintWriter(new OutputStreamWriter(out, "utf-8"));
        pw.println("{\"code\":1,\"msg\":\",?!\",\"data\":\"\"}");
        pw.flush();
        pw.close();
    }

    ModelAndView mav = new ModelAndView();
    // if (InvokeTypeTools.isAjax(request)) {
    // return createJsonMav("server exceptin or error", ResultCode.ERROR, e.getMessage());
    // }

    mav.addObject("exception", e.getCause() == null ? StringUtils.EMPTY : e.getCause().toString());
    mav.addObject("msg", StringUtils.isEmpty(e.getMessage()) ? e.toString() : e.getMessage());
    mav.addObject("stackTrace", e.getStackTrace().toString());
    if (request.getRequestURI() != null) {
        mav.addObject("url", request.getRequestURI().toString());
    }
    mav.setViewName("error");
    return mav;
}

From source file:com.smartgwt.extensions.fileuploader.server.TestServiceImpl.java

private void processQuery(HttpServletRequest request, HttpServletResponse response) {
    try {//ww w  .jav a2 s.  com
        System.out.println("--------------------------------------------");
        for (Enumeration<String> en = request.getParameterNames(); en.hasMoreElements();) {
            String name = en.nextElement();
            System.out.println(name + "=" + request.getParameter(name));
        }
        // these are parameters I pass from my ProjectDataSource on all calls.  Change to meet your needs.
        String context = request.getParameter("context");
        String model = request.getParameter("model");
        String xq = request.getParameter("xq");
        String op = request.getParameter("_operationType");
        response.setContentType("text/xml");
        response.setHeader("Pragma", "No-cache");
        response.setDateHeader("Expires", 0);
        response.setHeader("Cache-Control", "no-cache");

        PrintWriter out = response.getWriter();
        getResponse(out, context, model, xq, op);
        out.flush();
    } catch (Exception e) {
        System.out.println(e.getMessage());
    }

}

From source file:com.cws.esolutions.core.utils.NetworkUtils.java

/**
 * Creates an telnet connection to a target host and port number. Silently
 * succeeds if no issues are encountered, if so, exceptions are logged and
 * re-thrown back to the requestor.//w w  w .  j  a v a 2s .c om
 *
 * If an exception is thrown during the <code>socket.close()</code> operation,
 * it is logged but NOT re-thrown. It's not re-thrown because it does not indicate
 * a connection failure (indeed, it means the connection succeeded) but it is
 * logged because continued failures to close the socket could result in target
 * system instability.
 * 
 * @param hostName - The target host to make the connection to
 * @param portNumber - The port number to attempt the connection on
 * @param timeout - How long to wait for a connection to establish or a response from the target
 * @param object - The serializable object to send to the target
 * @return <code>Object</code> as output from the request
 * @throws UtilityException {@link com.cws.esolutions.core.utils.exception.UtilityException} if an error occurs processing
 */
public static final synchronized Object executeTcpRequest(final String hostName, final int portNumber,
        final int timeout, final Object object) throws UtilityException {
    final String methodName = NetworkUtils.CNAME
            + "#executeTcpRequest(final String hostName, final int portNumber, final int timeout, final Object object) throws UtilityException";

    if (DEBUG) {
        DEBUGGER.debug(methodName);
        DEBUGGER.debug(hostName);
        DEBUGGER.debug("portNumber: {}", portNumber);
        DEBUGGER.debug("timeout: {}", timeout);
        DEBUGGER.debug("object: {}", object);
    }

    Socket socket = null;
    Object resObject = null;

    try {
        synchronized (new Object()) {
            if (StringUtils.isEmpty(InetAddress.getByName(hostName).toString())) {
                throw new UnknownHostException("No host was found in DNS for the given name: " + hostName);
            }

            InetSocketAddress socketAddress = new InetSocketAddress(hostName, portNumber);

            socket = new Socket();
            socket.setSoTimeout((int) TimeUnit.SECONDS.toMillis(timeout));
            socket.setSoLinger(false, 0);
            socket.setKeepAlive(false);
            socket.connect(socketAddress, (int) TimeUnit.SECONDS.toMillis(timeout));

            if (!(socket.isConnected())) {
                throw new ConnectException("Failed to connect to host " + hostName + " on port " + portNumber);
            }

            ObjectOutputStream objectOut = new ObjectOutputStream(socket.getOutputStream());

            if (DEBUG) {
                DEBUGGER.debug("ObjectOutputStream: {}", objectOut);
            }

            objectOut.writeObject(object);

            resObject = new ObjectInputStream(socket.getInputStream()).readObject();

            if (DEBUG) {
                DEBUGGER.debug("resObject: {}", resObject);
            }

            PrintWriter pWriter = new PrintWriter(socket.getOutputStream(), true);

            pWriter.println(NetworkUtils.TERMINATE_TELNET + NetworkUtils.CRLF);

            pWriter.flush();
            pWriter.close();
        }
    } catch (ConnectException cx) {
        throw new UtilityException(cx.getMessage(), cx);
    } catch (UnknownHostException ux) {
        throw new UtilityException(ux.getMessage(), ux);
    } catch (SocketException sx) {
        throw new UtilityException(sx.getMessage(), sx);
    } catch (IOException iox) {
        throw new UtilityException(iox.getMessage(), iox);
    } catch (ClassNotFoundException cnfx) {
        throw new UtilityException(cnfx.getMessage(), cnfx);
    } finally {
        try {
            if ((socket != null) && (!(socket.isClosed()))) {
                socket.close();
            }
        } catch (IOException iox) {
            // log it - this could cause problems later on
            ERROR_RECORDER.error(iox.getMessage(), iox);
        }
    }

    return resObject;
}

From source file:business.controllers.UploadImageController.java

@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    if (!ServletFileUpload.isMultipartContent(request)) {
        PrintWriter writer = response.getWriter();
        writer.println("Request does not contain upload data");
        writer.flush();
        return;//from   ww w . j  a  va2  s  . c  om
    }
    String oauthCode = "";
    // configures upload settings
    DiskFileItemFactory factory = new DiskFileItemFactory();
    // maximum size that will be stored in memory
    factory.setSizeThreshold(UploadConstant.THRESHOLD_SIZE);
    // Location to save data that is larger than maxMemSize.
    factory.setRepository(new File(System.getProperty("java.io.tmpdir")));
    // Create a new file upload handler
    ServletFileUpload upload = new ServletFileUpload(factory);
    // maximum file size to be uploaded.
    upload.setFileSizeMax(UploadConstant.MAX_FILE_SIZE);
    upload.setSizeMax(UploadConstant.MAX_REQUEST_SIZE);
    List formItems = new ArrayList();
    try {
        // parses the request's content to extract file data
        formItems = upload.parseRequest(request);
        Iterator iter = formItems.iterator();
        // iterates over form's fields
        while (iter.hasNext()) {
            FileItem item = (FileItem) iter.next();
            // processes only fields that are not form fields
            if (item.getFieldName().equals("oauthcode")) {
                oauthCode = item.getString();
            }

        }

    } catch (FileUploadException ex) {
        logger.error("Write image:" + ex);
    }

    //checkLogin
    BusinessChatHandler handler = new BusinessChatHandler();
    try {
        if (handler.isLogin(oauthCode)) {
            uploadImage(request, response, formItems);
        }
    } catch (TException ex) {
        java.util.logging.Logger.getLogger(UploadImageController.class.getName()).log(Level.SEVERE, null, ex);
    }
}

From source file:it.delli.mwebc.servlet.MWebCManager.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    try {/*from  w  w w  .  j  av a  2s.co  m*/
        response.setContentType("text/xml");
        String action = request.getParameter("action");
        JsonObject data = new GsonBuilder()
                .registerTypeAdapter(JsonObject.class, new JsonDeserializer<JsonObject>() {
                    public JsonObject deserialize(JsonElement json, Type arg1, JsonDeserializationContext arg2)
                            throws JsonParseException {
                        return json.getAsJsonObject();
                    }
                }).create().fromJson(request.getParameter("data"), JsonObject.class);

        log.info("Begin managing client event request");

        log.debug("Client event request data: " + data.toString());

        Application application = (Application) request.getSession().getAttribute("application");
        application.setHttpServletRequest(request);
        application.setHttpServletResponse(response);

        Page page = application.getPage(data.get("pageName").getAsString());

        JsonElement widgets = data.get("widgets");
        if (widgets != null) {
            for (int i = 0; i < widgets.getAsJsonArray().size(); i++) {
                updateServerWidget(page, widgets.getAsJsonArray().get(i).getAsJsonObject());
            }
        }

        Command command = application.getCommand(action);
        command.execute(page, data);

        PrintWriter out = response.getWriter();
        application.printJavaScriptStream(out);
        out.flush();
        out.close();

        cleanRemovedWidgets(page);

        log.info("End managing client event request");
    } catch (Exception e) {
        log.error("Exception in forwarding control to server", e);
        throw new ServletException(e);
    }
}