Example usage for java.io PrintWriter write

Introduction

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

Prototype

public void write(String s) 

Source Link

Document

Writes a string.

Usage

From source file:com.streamsets.datacollector.http.JMXJsonServlet.java

/**
 * Process a GET request for the specified resource.
 *
 * @param request//from  ww  w. ja  v  a  2s.c om
 *          The servlet request we are processing
 * @param response
 *          The servlet response we are creating
 */
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) {
    try {
        JsonGenerator jg = null;
        String jsonpcb = null;
        PrintWriter writer = null;
        try {
            writer = response.getWriter();

            // "callback" parameter implies JSONP outpout
            jsonpcb = request.getParameter(CALLBACK_PARAM);
            if (jsonpcb != null) {
                response.setContentType("application/javascript; charset=utf8");
                writer.write(jsonpcb + "(");
            } else {
                response.setContentType("application/json; charset=utf8");
            }

            jg = jsonFactory.createGenerator(writer);
            jg.disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET);
            jg.useDefaultPrettyPrinter();
            jg.writeStartObject();

            // query per mbean attribute
            String getmethod = request.getParameter("get");
            if (getmethod != null) {
                String[] splitStrings = getmethod.split("\\:\\:");
                if (splitStrings.length != 2) {
                    jg.writeStringField("result", "ERROR");
                    jg.writeStringField("message", "query format is not as expected.");
                    jg.flush();
                    response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
                    return;
                }
                listBeans(jg, new ObjectName(splitStrings[0]), splitStrings[1], response);
                return;
            }

            // query per mbean
            String qry = request.getParameter("qry");
            if (qry == null) {
                qry = "*:*";
            }
            listBeans(jg, new ObjectName(qry), null, response);
        } finally {
            if (jg != null) {
                jg.close();
            }
            if (jsonpcb != null) {
                writer.write(");");
            }
            if (writer != null) {
                writer.close();
            }
        }
    } catch (IOException e) {

        response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    } catch (MalformedObjectNameException e) {

        response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
    }
}

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From source file:com.flexive.extractor.PdfExtractor.java

/**
 * Extracts the text informations from the pdf file.
 *
 * @param in the input stream to read from
 * @return the extracted information, or null if no text extraction was possible
 *//*from  w ww  .  j a v a 2  s  .  c o  m*/
public ExtractedData extract(final InputStream in) {
    ByteArrayOutputStream baos = null;
    PrintWriter writer = null;
    PDDocument document = null;
    try {
        baos = new ByteArrayOutputStream();
        writer = new PrintWriter(baos);
        document = PDDocument.load(in);
        PDFTextStripper stripper = new PDFTextStripper();
        try {
            stripper.writeText(document, writer);
        } catch (IOException e) {
            // usually because text extraction is not allowed
            LOG.warn("Failed to extract text from PDF file: " + e.getMessage());
        }
        FxSummaryInformation fxsi = new FxSummaryInformation(document);
        writer.write(fxsi.getFTIndexInformations());
        writer.flush();
        return new ExtractedData(fxsi, baos.toString());
    } catch (Exception exc) {
        exc.printStackTrace();
        return null;
    } finally {
        try {
            if (writer != null)
                writer.close();
        } catch (Exception exc) {
            /*ignore*/}
        try {
            if (baos != null)
                baos.close();
        } catch (Exception exc) {
            /*ignore*/}
        try {
            if (document != null)
                document.close();
        } catch (Exception exc) {
            /*ignore*/}
    }

}

---

From source file:com.appeligo.showfiles.ShowFile.java

/**
 * @param response/*from  ww w.j av  a  2  s  .  co m*/
 * @param out
 * @param path
 * @throws FileNotFoundException
 * @throws IOException
 */
private void showFlash(HttpServletResponse response, PrintWriter out, String path)
        throws FileNotFoundException, IOException {
    response.setContentType("application/x-shockwave-flash");
    BufferedInputStream s = new BufferedInputStream(new FileInputStream(documentRoot + path));
    int ch;
    while ((ch = s.read()) >= 0) {
        out.write(ch);
    }
}

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From source file:eu.stratosphere.nephele.jobmanager.web.JobmanagerInfoServlet.java

/**
 * Writes all updates (events) for a given job since a given time
 * /*from  ww  w.j a  v  a2 s.com*/
 * @param wrt
 * @param jobId
 */
private void writeJsonUpdatesForJob(PrintWriter wrt, JobID jobId) {

    try {

        List<AbstractEvent> events = jobmanager.getEvents(jobId);

        //Serialize job to json
        wrt.write("{");
        wrt.write("\"jobid\": \"" + jobId + "\",");
        wrt.write("\"timestamp\": \"" + System.currentTimeMillis() + "\",");
        wrt.write("\"recentjobs\": [");

        boolean first = true;
        for (RecentJobEvent rje : jobmanager.getRecentJobs()) {
            if (first) {
                first = false;
            } else {
                wrt.write(",");
            }

            wrt.write("\"" + rje.getJobID().toString() + "\"");
        }

        wrt.write("],");

        wrt.write("\"vertexevents\": [");

        first = true;
        for (AbstractEvent event : events) {

            if (event instanceof ExecutionStateChangeEvent) {

                if (first) {
                    first = false;
                } else {
                    wrt.write(",");
                }

                ExecutionStateChangeEvent vertexevent = (ExecutionStateChangeEvent) event;
                wrt.write("{");
                wrt.write("\"vertexid\": \"" + vertexevent.getVertexID() + "\",");
                wrt.write("\"newstate\": \"" + vertexevent.getNewExecutionState() + "\",");
                wrt.write("\"timestamp\": \"" + vertexevent.getTimestamp() + "\"");
                wrt.write("}");
            }
        }

        wrt.write("],");

        wrt.write("\"jobevents\": [");

        first = true;
        for (AbstractEvent event : events) {

            if (event instanceof JobEvent) {

                if (first) {
                    first = false;
                } else {
                    wrt.write(",");
                }

                JobEvent jobevent = (JobEvent) event;
                wrt.write("{");
                wrt.write("\"newstate\": \"" + jobevent.getCurrentJobStatus() + "\",");
                wrt.write("\"timestamp\": \"" + jobevent.getTimestamp() + "\"");
                wrt.write("}");
            }
        }

        wrt.write("]");

        wrt.write("}");

    } catch (EofException eof) { // Connection closed by client
        LOG.info("Info server for jobmanager: Connection closed by client, EofException");
    } catch (IOException ioe) { // Connection closed by client   
        LOG.info("Info server for jobmanager: Connection closed by client, IOException");
    }

}

---

From source file:controllers.ServerController.java

public void askFinished(HttpServletRequest request, HttpServletResponse response) {
    try {/*from   w w w .  ja v a 2s .c om*/
        PrintWriter out = response.getWriter();
        String threadName = request.getParameter("threadName");
        boolean isFinished = threadsList.get(threadName).isFinished();
        if (isFinished)
            threadsList.remove(threadName);
        response.setContentType("application/json");
        OperationStatus operationStatus = new OperationStatus(isFinished, "hola");
        GsonBuilder builder = new GsonBuilder();
        Gson gson = builder.create();
        out.write(gson.toJson(operationStatus));
    } catch (IOException ex) {
        Logger.getLogger(ServerController.class.getName()).log(Level.SEVERE, null, ex);
    }
}

---

From source file:com.olegchir.wicket_spring_security_example.init.CsrfTokenFilter.java

@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
        FilterChain filterChain) throws ServletException, IOException {
    //Inspired by Spring documentation:
    //http://spring.io/blog/2013/08/21/spring-security-3-2-0-rc1-highlights-csrf-protection/
    //http://docs.spring.io/spring-security/site/docs/3.2.0.CI-SNAPSHOT/reference/html/csrf.html
    //And this discussion about Tymeleaf:
    //http://stackoverflow.com/questions/23669424/cant-create-csrf-token-with-spring-security

    //Set HTTP Headers
    CsrfToken token = (CsrfToken) request.getAttribute("_csrf");
    // Spring Security will allow the Token to be included in this header name
    response.setHeader("X-CSRF-HEADER", token.getHeaderName());
    // Spring Security will allow the token to be included in this parameter name
    response.setHeader("X-CSRF-PARAM", token.getParameterName());
    // this is the value of the token to be included as either a header or an HTTP parameter
    response.setHeader("X-CSRF-TOKEN", token.getToken());

    //Modify HTML
    // Wrap the response in a wrapper so we can get at the text after calling the next filter
    PrintWriter out = response.getWriter();
    CharResponseWrapper wrapper = new CharResponseWrapper((HttpServletResponse) response);
    filterChain.doFilter(request, wrapper);
    String modifiedHtml = wrapper.toString(); // Extract the text from the completed servlet and apply the regexes
    modifiedHtml = modifiedHtml.replace("${_csrf.token}", token.getToken());
    modifiedHtml = modifiedHtml.replace("${_csrf.parameterName}", token.getParameterName());
    modifiedHtml = modifiedHtml.replace("${_csrf.headerName}", token.getHeaderName());
    // Write our modified text to the real response
    response.setContentLength(modifiedHtml.getBytes().length);
    out.write(modifiedHtml);
    out.close();//from  ww  w . ja  va 2s  .c o  m
}

---

From source file:controllers.ServerController.java

public void download(HttpServletRequest request, HttpServletResponse response)
        throws IOException, InterruptedException, ServletException {
    response.setContentType("text/html");
    PrintWriter out = response.getWriter();
    //indicar el archivo
    String filename = "consultas.txt";
    //la ruta donde esta el archivo dentro de cups
    String filepath = "/opt";
    response.setContentType("APPLICATION/OCTET-STREAM");
    response.setHeader("Content-Disposition", "attachment; filename=\"" + filename + "\"");
    FileInputStream fileInputStream = new FileInputStream(filepath + filename);
    int i;/*w w  w  .  j  av a 2 s .  c o  m*/
    while ((i = fileInputStream.read()) != -1)
        out.write(i);
    fileInputStream.close();
    out.close();
}

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From source file:edu.vt.vbi.patric.portlets.IDMapping.java

@SuppressWarnings("unchecked")
public void serveResource(ResourceRequest request, ResourceResponse response)
        throws PortletException, IOException {

    String sraction = request.getParameter("sraction");

    if (sraction != null && sraction.equals("save_params")) {

        Map<String, String> key = new HashMap<>();
        String keyword = request.getParameter("keyword");
        String from = request.getParameter("from");
        String fromGroup = request.getParameter("fromGroup");
        String to = request.getParameter("to");
        String toGroup = request.getParameter("toGroup");

        if (!keyword.equals("")) {
            key.put("keyword", keyword.replaceAll("\n", " OR ").replaceAll(",", " OR "));
        }//from  w  w w .j av a 2  s .  c  o m

        key.put("from", from);
        key.put("to", to);
        key.put("fromGroup", fromGroup);
        key.put("toGroup", toGroup);

        // random
        long pk = (new Random()).nextLong();

        SessionHandler.getInstance().set(SessionHandler.PREFIX + pk, jsonWriter.writeValueAsString(key));

        PrintWriter writer = response.getWriter();
        writer.write("" + pk);
        writer.close();
    } else if (sraction != null && sraction.equals("filters")) {
        // this.responseWriteFilters(response);
        this.responseWriteFiltersStatic(response);
    } else if (sraction != null && sraction.equals("download")) {
        processDownload(request, response);
    } else {

        DataApiHandler dataApi = new DataApiHandler(request);

        String pk = request.getParameter("pk");

        Map<String, String> key = jsonReader
                .readValue(SessionHandler.getInstance().get(SessionHandler.PREFIX + pk));

        LOGGER.debug("id mapping param: {}", key);

        JSONObject jsonResult = processIDMapping(dataApi, key.get("from"), key.get("fromGroup"), key.get("to"),
                key.get("toGroup"), key.get("keyword"));

        response.setContentType("application/json");
        jsonResult.writeJSONString(response.getWriter());
    }
}

---

From source file:com.esri.gpt.sdisuite.IntegrationLinkServlet.java

/**
 * Writes characters to the response stream.
 * @param response the servlet response// www. jav  a2s.  c o m
 * @param content the content to write
 * @param charset the response character encoding 
 * @param contentType the response content type
 * @throws IOException if an IO exception occurs
 */
private void writeCharacterResponse(HttpServletResponse response, String content, String charset,
        String contentType) throws IOException {
    PrintWriter writer = null;
    try {
        if (content.length() > 0) {
            response.setCharacterEncoding(charset);
            response.setContentType(contentType);
            writer = response.getWriter();
            writer.write(content);
            writer.flush();
        }
    } finally {
        try {
            if (writer != null) {
                writer.flush();
                writer.close();
            }
        } catch (Exception ef) {
            LOGGER.log(Level.SEVERE, "Error closing PrintWriter.", ef);
        }
    }
}

---

From source file:it.anggen.generation.WebappGenerator.java

private void generateForbiddenJsp_old() {
    HtmlCanvas html = new HtmlCanvas();
    try {/* w  w w. j a  v  a  2 s  .  c om*/
        html.render(HtmlGenerator.docType);
        html.html().head().title().content("Access forbidden");
        htmlGenerator.incluseCssFiles(html);
        htmlGenerator.includeJavascriptScripts(html, false);
        html._head().body().content("Access forbidden!!!")._html();

        File file = new File("");
        String directoryViewPages = file.getAbsolutePath() + generator.htmlDirectory + "/";

        File dir = new File(directoryViewPages);
        if (!dir.exists())
            dir.mkdirs();

        File myJsp = new File(directoryViewPages + "forbidden.jsp");
        PrintWriter writer;
        try {
            System.out.println("Written " + myJsp.getAbsolutePath());
            writer = new PrintWriter(myJsp, "UTF-8");
            writer.write(html.toHtml());
            writer.close();
        } catch (FileNotFoundException | UnsupportedEncodingException e) {
            e.printStackTrace();
        }
    } catch (IOException e1) {
        // TODO Auto-generated catch block
        e1.printStackTrace();
    }
}

---

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