protected void pageStart(HttpServletRequest req, HttpServletResponse resp, StringBuilder sb)
throws Exception {
resp.setContentType(DEFAULT_CONTENT_TYPE);
int refresh = -1;
Cookie c = getCookie(req, "page.refresh.rate");
if (c != null && c.getValue() != null) {
try {
refresh = Integer.parseInt(c.getValue());
} catch (NumberFormatException e) {
// ignore improperly formatted user cookie
}
}
synchronized (BasicServlet.class) {
// Learn our instance name asynchronously so we don't hang up if zookeeper is down
if (cachedInstanceName == null) {
SimpleTimer.getInstance()
.schedule(
new TimerTask() {
@Override
public void run() {
synchronized (BasicServlet.class) {
if (cachedInstanceName == null) {
cachedInstanceName = HdfsZooInstance.getInstance().getInstanceName();
}
}
}
},
1000);
}
}
// BEGIN PAGE
sb.append("<html>\n");
// BEGIN HEADER
sb.append("<head>\n");
sb.append("<title>")
.append(getTitle(req))
.append(" - Accumulo ")
.append(Constants.VERSION)
.append("</title>\n");
if ((refresh > 0)
&& (req.getRequestURI().startsWith("/docs") == false)
&& (req.getRequestURI().startsWith("/vis") == false))
sb.append("<meta http-equiv='refresh' content='" + refresh + "' />\n");
sb.append("<meta http-equiv='Content-Type' content='")
.append(DEFAULT_CONTENT_TYPE)
.append("' />\n");
sb.append("<meta http-equiv='Content-Script-Type' content='text/javascript' />\n");
sb.append("<meta http-equiv='Content-Style-Type' content='text/css' />\n");
sb.append("<link rel='shortcut icon' type='image/jpg' href='/web/favicon.png' />\n");
sb.append("<link rel='stylesheet' type='text/css' href='/web/screen.css' media='screen' />\n");
sb.append("<script src='/web/functions.js' type='text/javascript'></script>\n");
sb.append(
"<!--[if lte IE 8]><script language=\"javascript\" type=\"text/javascript\" src=\"/web/flot/excanvas.min.js\"></script><![endif]-->\n");
sb.append(
"<script language=\"javascript\" type=\"text/javascript\" src=\"/web/flot/jquery.js\"></script>\n");
sb.append(
"<script language=\"javascript\" type=\"text/javascript\" src=\"/web/flot/jquery.flot.js\"></script>\n");
sb.append("</head>\n");
// BEGIN BODY OPENING
sb.append("\n<body>\n");
sb.append("<div id='content-wrapper'>\n");
sb.append("<div id='content'>\n");
sb.append("<div id='header'>");
if (!bannerText.isEmpty()) {
sb.append("<div id='banner' style='color:")
.append(bannerColor)
.append(";background:")
.append(bannerBackground)
.append("'>")
.append(bannerText)
.append("</div>\n");
}
sb.append("<div id='headertitle'>");
sb.append("<h1>").append(getTitle(req)).append("</h1></div>\n");
sb.append("<div id='subheader'>Instance Name: ")
.append(cachedInstanceName)
.append(" Version: ")
.append(Constants.VERSION)
.append("\n");
sb.append("<br><span class='smalltext'>Instance ID: ")
.append(HdfsZooInstance.getInstance().getInstanceID())
.append("</span>\n");
sb.append("<br><span class='smalltext'>")
.append(new Date().toString().replace(" ", " "))
.append("</span>");
sb.append("</div>\n"); // end <div id='subheader'>
sb.append("</div>\n"); // end <div id='header'>
// BEGIN LEFT SIDE
sb.append("<div id='nav'>\n");
sb.append("<span id='nav-title'><a href='/'>Overview</a></span><br />\n");
sb.append("<hr />\n");
sb.append("<a href='/master'>Master Server</a><br />\n");
sb.append("<a href='/tservers'>Tablet Servers</a><br />\n");
sb.append("<a href='/loggers'>Logger Servers</a><br />\n");
sb.append("<a href='/vis'>Server Activity</a><br />\n");
sb.append("<a href='/gc'>Garbage Collector</a><br />\n");
sb.append("<a href='/tables'>Tables</a><br />\n");
sb.append("<a href='/trace/summary?minutes=10'>Recent Traces</a><br />\n");
sb.append("<a href='/docs'>Documentation</a><br />\n");
int numLogs = LogService.getInstance().getEvents().size();
if (numLogs > 0)
sb.append(
"<span class='error'><a href='/log'>Recent Logs <span class='smalltext'>("
+ numLogs
+ ")</a></span></span><br />\n");
int numProblems = Monitor.getProblemSummary().entrySet().size();
if (numProblems > 0)
sb.append(
"<span class='error'><a href='/problems'>Table Problems <span class='smalltext'>("
+ numProblems
+ ")</a></span></span><br />\n");
sb.append("<hr />\n");
sb.append("<a href='/xml'>XML</a><hr />\n");
sb.append("<div class='smalltext'>[<a href='")
.append("/op?action=refresh&value=")
.append(refresh < 1 ? "5" : "-1");
sb.append("&redir=").append(currentPage(req)).append("'>");
sb.append(refresh < 1 ? "en" : "dis").append("able auto-refresh</a>]</div>\n");
sb.append("</div>\n"); // end <div id='nav'>
sb.append("<div id='main'");
if (bannerText.isEmpty()) sb.append(" style='bottom:0'");
sb.append(">\n");
sb.append("<!-- BEGIN MAIN BODY CONTENT -->\n\n");
}
