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:fi.uta.infim.usaproxyreportgenerator.App.java

/**
 * Generates the actual HTML report file for a single session.
 * @param session the session to generate the report for
 * @param outputDir output directory for reports
 * @throws IOException if the report template cannot be read
 * @throws TemplateException if there is a problem processing the template
 *//*from  ww  w  .  j  a v  a 2  s.  com*/
private static void generateHTMLReport(UsaProxySession session, File outputDir)
        throws IOException, TemplateException {
    JSONObject httptraffic = new JSONObject();
    for (UsaProxyHTTPTraffic t : session.getSortedHttpTrafficSessions()) {
        System.out.print("processing traffic id " + t.getSessionID() + "... ");
        httptraffic.accumulate(t.getSessionID().toString(), JSONObject.fromObject(t, config));
    }

    JSONObject tf = new JSONObject();
    tf.accumulate("DEFAULTELEMENTCOLOR", UsaProxyHTTPTrafficJSONProcessor.DEFAULTELEMENTCOLOR);
    tf.accumulate("DEFAULTVIEWPORTCOLOR", UsaProxyHTTPTrafficJSONProcessor.DEFAULTVIEWPORTCOLOR);
    tf.accumulate("httptraffics", httptraffic);

    Map<String, Object> sessionRoot = new HashMap<String, Object>();

    sessionRoot.put("data", tf.toString());
    sessionRoot.put("timestamp", session.getStart());
    sessionRoot.put("id", session.getSessionID());
    sessionRoot.put("ip", session.getAddress().getHostAddress());
    sessionRoot.put("httpTraffics", session.getSortedHttpTrafficSessions());

    Configuration cfg = new Configuration();
    // Specify the data source where the template files come from.
    cfg.setClassForTemplateLoading(App.class, "/" + TEMPLATEDIR);
    cfg.setObjectWrapper(new DefaultObjectWrapper());

    Template temp = cfg.getTemplate(REPORTTEMPLATE);

    Map<String, Object> root = new HashMap<String, Object>();
    root.put("session", sessionRoot);
    root.put("httpTrafficListIdPrefix", HTTPTRAFFICLISTIDPREFIX);
    root.put("placeholderIdPrefix", PLACEHOLDERIDPREFIX);

    try {
        Writer out = new OutputStreamWriter(new FileOutputStream(
                new File(outputDir, "usaproxy-session-report-" + session.getSessionID() + ".html")));
        temp.process(root, out);
        out.flush();
    } catch (IOException e) {
        System.err.println("Error opening output file: " + e.getLocalizedMessage());
    }

}

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From source file:com.sample.ecommerce.util.ElasticSearchUtil.java

public static String render(String templateName, Object model) {
    Writer writer = new StringWriter();
    MustacheFactory mf = new DefaultMustacheFactory();
    Mustache mustache = mf.compile(/*from  ww  w  . j a  v  a2s.  com*/
            new StringReader(getContentFromClasspath("/search/templates/" + templateName + ".mustache")),
            "example");
    mustache.execute(writer, model);
    try {
        writer.flush();
    } catch (IOException ex) {
        Logger.getLogger(ElasticSearchUtil.class.getName()).log(Level.SEVERE, null, ex);
    }
    return writer.toString();
}

---

From source file:FileCopyUtils.java

/**
 * Copy the contents of the given Reader to the given Writer.
 * Closes both when done./*from w  ww  .  jav  a 2  s.  c  o  m*/
 * @param in the Reader to copy from
 * @param out the Writer to copy to
 * @return the number of characters copied
 * @throws IOException in case of I/O errors
 */
public static int copy(Reader in, Writer out) throws IOException {

    try {
        int byteCount = 0;
        char[] buffer = new char[BUFFER_SIZE];
        int bytesRead = -1;
        while ((bytesRead = in.read(buffer)) != -1) {
            out.write(buffer, 0, bytesRead);
            byteCount += bytesRead;
        }
        out.flush();
        return byteCount;
    } finally {
        try {
            in.close();
        } catch (IOException ex) {
            System.out.println("Could not close Reader" + ex);
        }
        try {
            out.close();
        } catch (IOException ex) {
            System.out.println("Could not close Writer:" + ex);
        }
    }
}

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From source file:ch.zhaw.iamp.rct.weights.Weights.java

private static void matrixToCsv(final RealMatrix matrix, final String targetFilePath) throws IOException {
    Writer out = new FileWriter(targetFilePath);

    for (int i = 0; i < matrix.getRowDimension(); ++i) {
        for (int j = 0; j < matrix.getColumnDimension(); ++j) {
            out.append("" + matrix.getEntry(i, j));
            if (j < matrix.getColumnDimension() - 1) {
                out.append(",");
            }// w w w  .  j a  v  a2s .  co  m
        }
        out.append("\n");
        out.flush();
    }

}

---

From source file:com.cisco.dvbu.ps.common.scriptutil.ScriptUtil.java

/**
 * Create a command file for UNIX or Windows from name value pairs strings constructed based on passed in xml content
 * @param xmlFilePath xml File Path/*ww w  .j a v  a 2  s  .  co  m*/
 * @param nodeName String return name values for passed in node name and node value. * is treated as all nodes
 * @param nodeValue String return name values for passed in node name and node value. * is treated as all node values
 * @param options additional options to return the node name or attributes such as "-noid -noattributes"
 * @param commandOutputFile The fully qualifed path of the command output file
 * @param commandHeader The command file header such as #!/bin/bash
 * @param commandType The type of command file [UNIX|WINDOWS] {use export for UNIX, use set for WINDOWS)
 *           UNIX: export name="value"
 *        WINDOWS: set name=value
 * usage createCommandFileFromXML xmlFilePath * * "-noid -noattributes" /Users/rthummal/mywork/clients/ps/CisDeployTool/resources/abc.sh #!/bin/bash UNIX
 * usage createCommandFileFromXML xmlFilePath hostname localhost "" C:\opt\pdtool/abc.bat "echo off"    WINDOWS
 * usage createCommandFileFromXML xmlFilePath hostname * "-noid" /opt/pdtool/abc.sh #!/bin/bash UNIX
 */
public static void createCommandFileFromXML(String xmlFilePath, String nodeName, String nodeValue,
        String options, String commandOutputFile, String commandHeader, String commandType) {
    boolean win = false;
    String cmdPrefix = "export ";
    if (commandType != null && commandType.equals("WINDOWS")) {
        win = true;
        cmdPrefix = "set ";
    }

    String nameValuePairs = XMLUtils.getNameValuePairsFromXML(xmlFilePath, null, null, nodeName, nodeValue,
            options);
    if (nameValuePairs != null) {
        StringBuffer sb = new StringBuffer();
        sb.append(commandHeader + "\n");
        StringTokenizer st = new StringTokenizer(nameValuePairs, "|");
        while (st.hasMoreTokens()) {
            sb.append(cmdPrefix);

            String nameValuePair = st.nextToken();

            if (!win) {
                nameValuePair = nameValuePair.replace("=", "=\"");
                nameValuePair += "\"";
            }
            sb.append(nameValuePair + "\n");
        }

        try {
            Writer out = new OutputStreamWriter(new FileOutputStream(commandOutputFile));
            out.write(sb.toString());
            out.flush();
        } catch (FileNotFoundException e) {
            logger.error("Could not wirte to command file " + commandOutputFile, e);
            throw new ValidationException(e.getMessage(), e);

        } catch (IOException e) {
            logger.error("Could not wirte to command file " + commandOutputFile, e);
            throw new ValidationException(e.getMessage(), e);
        }

    }

}

---

From source file:com.netxforge.oss2.core.xml.CastorUtils.java

/**
 * Marshall to a string first, then write the string to the file. This
 * way the original config isn't lost if the xml from the marshall is hosed.
 *
 * FIXME: This could still stand to write to a temporary file and/or make a
 * temporary backup of the production configuration file.
 *
 * @param config a {@link java.lang.Object} object.
 * @param cfgFile a {@link java.io.File} object.
 * @throws org.exolab.castor.xml.MarshalException if any.
 * @throws org.exolab.castor.xml.ValidationException if any.
 * @throws java.io.IOException if any./*from w  w w.j  a  v a2s .c om*/
 */
public static void marshalViaString(Object config, File cfgFile)
        throws MarshalException, ValidationException, IOException {
    StringWriter stringWriter = new StringWriter();

    marshal(config, stringWriter);

    Writer fileWriter = new OutputStreamWriter(new FileOutputStream(cfgFile), "UTF-8");
    fileWriter.write(stringWriter.toString());
    fileWriter.flush();
    fileWriter.close();
}

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From source file:org.apache.manifoldcf.authorities.authorities.jira.JiraSession.java

private static String convertToString(HttpResponse httpResponse) throws IOException {
    HttpEntity entity = httpResponse.getEntity();
    if (entity != null) {
        InputStream is = entity.getContent();
        try {//from   ww  w  .  ja v  a  2s  . co m
            char[] buffer = new char[65536];
            Reader r = new InputStreamReader(is, getCharSet(entity));
            Writer w = new StringWriter();
            try {
                while (true) {
                    int amt = r.read(buffer);
                    if (amt == -1)
                        break;
                    w.write(buffer, 0, amt);
                }
            } finally {
                w.flush();
            }
            return w.toString();
        } finally {
            is.close();
        }
    }
    return "";
}

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From source file:com.android.email.mail.transport.Rfc822Output.java

/**
 * Write text (either as main body or inside a multipart), preceded by appropriate headers.
 *
 * Note this always uses base64, even when not required.  Slightly less efficient for
 * US-ASCII text, but handles all formats even when non-ascii chars are involved.  A small
 * optimization might be to prescan the string for safety and send raw if possible.
 *
 * @param writer the output writer/*from w  ww .  java  2  s .co  m*/
 * @param out the output stream inside the writer (used for byte[] access)
 * @param text The original text of the message
 */
private static void writeTextWithHeaders(Writer writer, OutputStream out, String text) throws IOException {
    writeHeader(writer, "Content-Type", "text/plain; charset=utf-8");
    writeHeader(writer, "Content-Transfer-Encoding", "base64");
    writer.write("\r\n");
    byte[] bytes = text.getBytes("UTF-8");
    writer.flush();
    out.write(Base64.encode(bytes, Base64.CRLF));
}

---

From source file:Main.java

/**
 * Write the entire contents of the supplied string to the given writer. This method always flushes and closes the writer when
 * finished.//from  w w  w  .  j  a  v a  2 s .  c  om
 * 
 * @param content the content to write to the writer; may be null
 * @param writer the writer to which the content is to be written
 * @throws IOException
 * @throws IllegalArgumentException if the writer is null
 */
public static void write(String content, Writer writer) throws IOException {
    boolean error = false;
    try {
        if (content != null) {
            writer.write(content);
        }
    } catch (IOException e) {
        error = true; // this error should be thrown, even if there is an error flushing/closing writer
        throw e;
    } catch (RuntimeException e) {
        error = true; // this error should be thrown, even if there is an error flushing/closing writer
        throw e;
    } finally {
        try {
            writer.flush();
        } catch (IOException e) {
            if (!error)
                throw e;
        } finally {
            try {
                writer.close();
            } catch (IOException e) {
                if (!error)
                    throw e;
            }
        }
    }
}

---

From source file:com.github.mavogel.ilias.printer.VelocityOutputPrinter.java

/**
 * Prints the header, content and output to the given print stream with a custom template.
 *
 * @param outputType   the desired output type. @see {@link OutputType}
 * @param templateName the name of the template
 * @param contextMap   the context for velocity
 * @throws Exception in case of a error, so the caller can handle it
 *//*from   www.  j a v  a  2  s .c o m*/
private static void printWithCustomTemplate(final OutputType outputType, final String templateName,
        final Map<String, Object> contextMap) throws Exception {
    Velocity.init();
    Writer writer = null;
    try {
        final Template template = Velocity.getTemplate(templateName);
        final VelocityContext context = new VelocityContext();
        contextMap.forEach((k, v) -> context.put(k, v));
        writer = new BufferedWriter(createFileWriter(outputType, templateName));

        template.merge(context, writer);
        writer.flush();
    } catch (ResourceNotFoundException rnfe) {
        LOG.error("Couldn't find the template with name '" + templateName + "'");
        throw new Exception(rnfe.getMessage());
    } catch (ParseErrorException pee) {
        LOG.error("Syntax error: problem parsing the template ' " + templateName + "': " + pee.getMessage());
        throw new Exception(pee.getMessage());
    } catch (MethodInvocationException mie) {
        LOG.error(
                "An invoked method on the template '" + templateName + "' threw an error: " + mie.getMessage());
        throw new Exception(mie.getMessage());
    } catch (Exception e) {
        LOG.error("Error: " + e.getMessage());
        throw e;
    } finally {
        if (writer != null)
            writer.close();
    }
}

---

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