Example usage for java.net InetAddress getHostName

Introduction

In this page you can find the example usage for java.net InetAddress getHostName.

Prototype

public String getHostName()

Source Link

Document

Gets the host name for this IP address.

Usage

From source file:org.openTwoFactor.client.util.TwoFactorClientCommonUtils.java

/**
 * get the hostname of this machine//www  . ja v a2  s.c om
 * @return the hostname
 */
public static String hostname() {

    if (isBlank(hostname)) {

        //get the hostname
        hostname = "unknown";
        try {
            InetAddress addr = InetAddress.getLocalHost();

            // Get hostname
            hostname = addr.getHostName();
        } catch (Exception e) {
            System.err.println("Cant find servers hostname: ");
            e.printStackTrace();
        }
    }

    return hostname;
}

From source file:de.innovationgate.wgpublisher.WGACore.java

public void send(WGAMailNotification notification) {
    WGAMailConfiguration config = getMailConfig();

    if (config != null && config.isEnableAdminNotifications()) {
        try {//from  www . j a v a 2  s.c  om
            Message msg = new MimeMessage(config.createMailSession());

            // set recipient and from address
            String toAddress = config.getToAddress();
            if (toAddress == null) {
                getLog().error(
                        "Unable to send wga admin notification because no recipient address is configured");
                return;
            }

            msg.setRecipient(Message.RecipientType.TO, new InternetAddress(toAddress));
            InternetAddress[] fromAddr = new InternetAddress[1];
            fromAddr[0] = new InternetAddress(config.getFromAddress());
            msg.addFrom(fromAddr);

            msg.setSentDate(new Date());

            InetAddress localMachine = InetAddress.getLocalHost();
            String hostname = localMachine.getHostName();
            String serverName = getWgaConfiguration().getServerName();
            if (serverName == null) {
                serverName = hostname;
            }

            msg.setSubject(notification.getSubject());

            msg.setHeader(WGAMailNotification.HEADERFIELD_TYPE, notification.getType());

            MimeMultipart content = new MimeMultipart();
            MimeBodyPart body = new MimeBodyPart();

            StringBuffer strBody = new StringBuffer();
            strBody.append("<html><head></head><body style=\"color:#808080\">");
            strBody.append(notification.getMessage());
            String rootURL = getWgaConfiguration().getRootURL();
            if (rootURL != null) {
                //strBody.append("<br><br>");
                strBody.append("<p><a href=\"" + rootURL + "/plugin-admin\">" + WGABrand.getName()
                        + " admin client ...</a></p>");
            }
            // append footer
            strBody.append("<br><br><b>System information:</b><br><br>");
            strBody.append("<b>Server:</b> " + serverName + " / " + WGACore.getReleaseString() + "<br>");
            strBody.append("<b>Host:</b> " + hostname + "<br>");
            strBody.append("<b>Operation System:</b> " + System.getProperty("os.name") + " Version "
                    + System.getProperty("os.version") + " (" + System.getProperty("os.arch") + ")<br>");
            strBody.append("<b>Java virtual machine:</b> " + System.getProperty("java.vm.name") + " Version "
                    + System.getProperty("java.vm.version") + " (" + System.getProperty("java.vm.vendor")
                    + ")");

            strBody.append("</body></html>");
            body.setText(strBody.toString());
            body.setHeader("MIME-Version", "1.0");
            body.setHeader("Content-Type", "text/html");

            content.addBodyPart(body);
            AppLog appLog = WGA.get(this).service(AppLog.class);

            if (notification.isAttachLogfile()) {
                MimeBodyPart attachmentBody = new MimeBodyPart();

                StringWriter applog = new StringWriter();
                int applogSize = appLog.getLinesCount();
                int offset = applogSize - notification.getLogfileLines();
                if (offset < 0) {
                    offset = 1;
                }
                appLog.writePage(offset, notification.getLogfileLines(), applog, LogLevel.LEVEL_INFO, false);

                attachmentBody.setDataHandler(new DataHandler(applog.toString(), "text/plain"));
                attachmentBody.setFileName("wga.log");
                content.addBodyPart(attachmentBody);
            }
            msg.setContent(content);

            // Send mail
            Thread mailThread = new Thread(new AsyncMailSender(msg), "WGAMailSender");
            mailThread.start();
        } catch (Exception e) {
            getLog().error("Unable to send wga admin notification.", e);
        }
    }
}