Example usage for java.io Writer flush

Introduction

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

Prototype

public abstract void flush() throws IOException;

Source Link

Document

Flushes the stream.

Usage

From source file:com.moss.appsnap.keeper.Keeper.java

public Keeper(final Url location) {
    log.info("Starting keeper for " + location);

    final DesktopIntegrationStrategy desktop = new Bootstrapper().discover();
    final ProxyFactory proxyFactory = new ProxyFactory(new HessianProxyProvider());
    final AppsnapService snap = proxyFactory.create(AppsnapService.class, location.toString());

    AppsnapServiceInfo serviceInfo;/*from   w ww  .  java  2 s  .  c o  m*/
    while (true) {
        try {
            serviceInfo = snap.serviceInfo();
            break;
        } catch (Exception e) {
            log.error("Error talking to appsnap.  Will try again in 5 seconds.  The message was: "
                    + e.getMessage(), e);
            try {
                Thread.sleep(5000);
            } catch (InterruptedException e1) {
                e1.printStackTrace();
            }
        }
    }

    final File dataLocation = desktop.keeperDataDir(serviceInfo.id());

    try {
        final File logOutput = new File(dataLocation, "log4j.log");
        Logger.getRootLogger().addAppender(new FileAppender(new SimpleLayout(), logOutput.getAbsolutePath()));
        log.info("Configured logging to " + logOutput.getAbsolutePath());
    } catch (IOException e) {
        e.printStackTrace();
    }

    log.info("Starting from " + dataLocation.getAbsolutePath());

    Data data;
    try {
        data = new Data(dataLocation);
    } catch (Exception e1) {
        throw new RuntimeException(e1);
    }

    if (data.config.get() == null) {
        if (System.getProperty("dev-bootstrap", "false").equals("true")) {
            KeeperConfig config = new KeeperConfig();
            data.config.put(config);
        } else {
            throw new NullPointerException("Keeper data has no config: have you run the installer?");
        }
    }
    if (location == null) {
        throw new NullPointerException();
    }

    guts = new Guts(serviceInfo, location, proxyFactory, snap, data, desktop);

    desktop.noLongerGutless(guts);

    final Poller poller = new Poller(guts, true);
    poller.start();

    desktop.thePollerWasStartedAndHereItIs(poller);

    desktop.startLocalApiServer(new ApiMessageHandler() {
        final SocketFunction[] commands = new SocketFunction[] { new PollFunction(guts, poller),
                new InstallFunction(guts, poller), new ControlPanelLaunchFunction(guts),
                new LaunchFunction(guts, poller), new PingFuction() };

        public void handle(ApiMessageConnection socket) {
            try {
                log.info("Opening connection");
                StringBuilder input = new StringBuilder();
                Reader r = new InputStreamReader(socket.in());
                log.info("Reading input");
                //               char[] b = new char[1024];
                //               for(int x=r.read(b);x!=-1;x=r.read(b)){
                //                  input.append(b, 0, x);
                //               }
                for (int x = r.read(); x != -1 && x != '\n'; x = r.read()) {
                    input.append((char) x);
                }
                //               r.close();

                log.info("Command: " + input);

                String commandName;
                String commandParams;

                int argsDelimiterPos = input.indexOf(" ");
                if (argsDelimiterPos != -1) {
                    commandName = input.substring(0, argsDelimiterPos);
                    commandParams = input.substring(argsDelimiterPos + 1);
                } else {
                    commandName = input.toString();
                    commandParams = "";
                }
                SocketFunction command = null;
                for (SocketFunction next : commands) {
                    if (next.name().equals(commandName)) {
                        command = next;
                    }
                }

                String response;
                if (command == null) {
                    response = ("Invalid command: " + commandName);
                } else {
                    try {
                        response = command.execute(commandParams);
                    } catch (Exception e) {
                        e.printStackTrace();
                        response = e.getClass().getSimpleName() + ":" + e.getMessage();
                    }
                }

                log.info("Sending response: " + response);

                Writer w = new OutputStreamWriter(socket.out());
                w.write(response);
                w.write('\n');
                w.flush();
                w.close();

            } catch (Throwable e) {
                e.printStackTrace();
            } finally {
                socket.close();
            }
        }
    });

}

From source file:de.hybris.platform.commons.renderer.impl.VelocityTemplateRenderer.java

private void writeToOutput(final Writer result, final InputStream inputStream, final Object context)
        throws IOException {
    final VelocityContext ctx = new VelocityContext();
    ctx.put(contextName, context);/*from w w w.  ja  v a2s . co m*/

    final Reader reader = new InputStreamReader(inputStream, "UTF-8");

    try {
        evaluate(result, ctx, reader);
        result.flush();
    } catch (final Exception e) {
        throw new RendererException("Problem with get velocity stream", e);
    } finally {
        IOUtils.closeQuietly(reader);
    }
}

From source file:com.comcast.cns.util.Util.java

/**
  * Generate the confirmation Json string
  * @param arn The top arn for the topic the user is subscribing to.
  * @param token the token for confirming the subscription
  * @return the Json String // ww  w.  j  a  v  a 2 s .c  o  m
  */
public static String generateConfirmationJson(String topicArn, String token, String messageId) {

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    Writer writer = new PrintWriter(out);
    JSONWriter jw = new JSONWriter(writer);
    String cnsServiceLocation = CMBProperties.getInstance().getCNSServiceUrl();
    SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ"); // UTC, no offset
    Date now = new Date();

    try {
        jw = jw.object();
        jw.key("Type").value(CNSMessageType.SubscriptionConfirmation);
        jw.key("MessageId").value(messageId);
        jw.key("Token").value(token);
        jw.key("TopicArn").value(topicArn);
        jw.key("Message").value("You have chosen to subscribe to the topic " + topicArn
                + "\\nTo confirm the subscription, visit the SubscribeURL included in this message.");
        jw.key("SubscribeURL").value(
                cnsServiceLocation + "?Action=ConfirmSubscription&TopicArn=" + topicArn + "&Token=" + token);
        jw.key("Timestamp").value(df.format(now));
        jw.key("SignatureVersion").value("1");
        jw.key("Signature").value("");
        jw.key("SigningCertURL").value("");
        jw.endObject();
        writer.flush();

    } catch (Exception e) {
        return "";
    }

    return out.toString();
}

From source file:com.clican.pluto.orm.dynamic.impl.DynamicORMManagePojoHibernateImpl.java

private void generate(String file, Template template, VelocityContext velocityContext)
        throws ORMManageException {
    Writer w = null;
    try {/*from   w  w w .  j a v a  2s  .  c o  m*/
        w = new OutputStreamWriter(new FileOutputStream(file), "utf-8");
        template.merge(velocityContext, w);
        w.flush();
    } catch (Exception e) {
        throw new ORMManageException(e);
    } finally {
        try {
            if (w != null) {
                w.close();
            }
        } catch (Exception e) {
            log.error("", e);
        }
    }
}

From source file:com.zyeeda.framework.template.internal.FreemarkerTemplateServiceProvider.java

@Override
public String render(String template, Map<String, Object> args) throws IOException {
    Reader reader = null;//from   w  w w  . java2s.com
    Writer writer = null;
    try {
        reader = new StringReader(template);
        Template tpl = new Template(null, reader, this.config);
        writer = new StringWriter();
        this.putBuildinVariables(args);
        tpl.process(args, writer);
        writer.flush();
        return writer.toString();
    } catch (TemplateException e) {
        throw new TemplateServiceException(e);
    } finally {
        if (reader != null) {
            reader.close();
        }
        if (writer != null) {
            writer.close();
        }
    }
}

From source file:gov.nih.nci.ncicb.tcga.dcc.common.util.BeanToTextExporter.java

public static String beanListToText(final String type, final Writer out, final Map<String, String> columns,
        final List data, final DateFormat dateFormat) {
    CSVWriter writer = new CSVWriter(out);
    if ("tab".equals(type)) {
        writer = new CSVWriter(out, '\t', CSVWriter.NO_QUOTE_CHARACTER);
    }/*from  ww w .  j  a va 2s  . c o  m*/
    List<String> cols = new LinkedList<String>();
    try {
        //Writing the column headers
        for (Map.Entry<String, String> e : columns.entrySet()) {
            cols.add(e.getValue());
        }
        writer.writeNext((String[]) cols.toArray(new String[columns.size()]));
        cols.clear();
        //Writing the data
        if (data != null) {
            for (Object o : data) {
                for (Map.Entry<String, String> e : columns.entrySet()) {
                    final Object obj = getAndInvokeGetter(o, e.getKey());
                    String value = getExportString(obj, dateFormat);

                    if ("tab".equals(type)) {
                        value = value.replace("\t", "   ");
                    }
                    cols.add(value);
                }
                writer.writeNext((String[]) cols.toArray(new String[columns.size()]));
                cols.clear();
            }
        }
        writer.close();
        out.flush();
        out.close();
    } catch (Exception e) {
        logger.debug(FancyExceptionLogger.printException(e));
        return "An error occurred.";
    }
    return out.toString();
}

From source file:org.ala.util.CsvMerger.java

private void writeCsv(String[] f1, String[] f2, int k2, Writer writer) throws IOException {
    boolean isFirst = true;

    for (String f : f1) {
        if (!isFirst) {
            writer.write(",");
        }//from w  ww  . j  a v  a2  s  .  c  o m
        writer.write("\"");
        writer.write(f);
        writer.write("\"");
        isFirst = false;
        writer.flush();
    }

    for (int i = 0; i < f2.length; i++) {
        if (i == k2) {
            continue;
        } else {
            writer.write(",");
            writer.write("\"");
            writer.write(f2[i]);
            writer.write("\"");
            writer.flush();
        }
    }

    writer.write("\n");

    writer.flush();
}

From source file:com.comcast.cns.model.CNSRetryPolicy.java

@Override
public String toString() {

    try {//from w ww  .  j  ava  2s .co  m

        JSONObject json = this.toJSON();
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        Writer writer = new PrintWriter(out);
        json.write(writer);
        writer.flush();

        return out.toString();

    } catch (Exception e) {
        return null;
    }
}

From source file:com.intel.cosbench.exporter.ScriptsLogExporter.java

private void exportWorkloadLog(Writer writer) throws IOException {
    writer.write("=========================");
    writer.write("=========================");
    writer.write(" workload level ");
    writer.write("=========================");
    writer.write("=========================");
    writer.write('\n');
    String wsId = workload.getId();
    doExportLog(writer, wsId);//from w ww. j  a v  a2  s  .  c  om
    writer.flush();
}