<%@page contentType="text/html"%>

<%@page pageEncoding="UTF-8"%>

<%@ page import="java.util.List" import="java.util.Iterator"%>

<%@ page import="org.netbeans.server.uihandler.LogsManager" %>

<%@ page import="org.netbeans.server.uihandler.statistics.TimeToFailture" %>

<%@ taglib uri="/WEB-INF/chart-tag.tld" prefix="chart" %>

<%@ taglib uri="/WEB-INF/statistics.tld" prefix="ui" %>

<ui:useStatistic name="TimeToFailture"/>

<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> 

<c:set var="path" value='/ <a href="../index.jsp">Analytics</a> / Graph / Time To Failture'/>

<%@include file="/WEB-INF/jspf/header.jspf" %>

<%! static int COLUMNS_NO = 1;%>

<div class="f-page-cell bg-sky" >

    <h2>Mean Time To Failure NetBeans statistics</h2>

    <p>

        This statistics measures mean time to NetBeans failure. Mean Time To Failure

        is simply the reciprocal of the failure rate. In other words is the 

        expected time to failure of a system. 

    </p>

    <p>

        You can see the graph of the Time To Failure values that are measured 

        by UI Gestures Collector. Time between exceptions in IDE is measured.

        The graph pretty well matches exponential distribution that is a teoretical

        model for system reliability. You can get more information about 

        <a href="http://en.wikipedia.org/wiki/Failure_rate">failure rate</a> or

        <a href="http://en.wikipedia.org/wiki/MTTF">Mean Time Between Failure</a> at

        Wikipedia. Mean Time Between Failure is pretty similar to Mean Time To 

        Failure in our case.

    </p>

</div>

<table width="100%">

    <%

            List<TimeToFailture.TTFData> data = (List<TimeToFailture.TTFData>) pageContext.getAttribute("globalTimeToFailture");

            if (data != null) {

                pageContext.setAttribute("results", data);

    %>

    <tr>

        <td align="center" width="480">

            <chart:line serie="serie"

                        collection="results"

                        category="trimmedTime"

                        value="count"

                        title="Time To Failure"

                        />

            <p>

                This is the overall statistics of all the submitted data.

            </p>

        </td>

        <td>

            <table>

                <thead class="tblheader">

                    <% for (int j = 0; j < COLUMNS_NO; j++) {%>

                    <th>

                        Time To Failure  

                    </th>

                    <th>

                        Number of events

                    </th>

                    <% }%>

                </thead>

                <tbody>

                    <% data = TimeToFailture.groupData(data, 2);

        int column = data.size() / COLUMNS_NO;

        int previousTime = 0;

        for (int i = 0; i < column; i++) {%>

                    <tr>

                        <%

                        for (int j = 0; j < COLUMNS_NO; j++) {

                            TimeToFailture.TTFData dat = data.get(column * j + i);

                        %>

                        <td class="tbltd1"><%= previousTime %> mins - <%= dat.getTrimmedTime()%> mins</td>

                        <td class="tbltd1"><%= dat.getCount()%></td>

                        <%

                            previousTime = dat.getTrimmedTime();

                        }

                        %>

                    </tr>

                    <%}%>

                </tbody>

            </table>

        </td>

    </tr>

    <tr style="font-size:bigger">

        <td>

            <h3>Global Mean Time To Failture: 

                <span style="color:red">

                    <%= pageContext.getAttribute("globalTimeToFailtureMTTF")%>

                </span>

            </h3>        

        </td>

    </tr>

    <% }%>

    <%

            data = (List<TimeToFailture.TTFData>) pageContext.getAttribute("userTimeToFailture");

            if (data != null) {

                pageContext.setAttribute("userResults", data);

    %>

    <tr>

        <td align="center" width="480">

            <chart:line serie="serie"

                        collection="userResults"

                        category="trimmedTime"

                        value="count"

                        title="Time To Failure"

                        />

            <p>

                This is the statistic of all your submitted data.

            </p>

        </td>

        <td>

            <table>

                <thead class="tblheader">

                    <% for (int j = 0; j < COLUMNS_NO; j++) {%>

                    <th>

                        Time To Failture (mins)

                    </th>

                    <th>

                        Number of events

                    </th>

                    <% }%>

                </thead>

                <tbody>

                    <% int column = data.size() / COLUMNS_NO;

        for (int i = 0; i < column; i++) {%>

                    <tr>

                        <%

                        for (int j = 0; j < COLUMNS_NO; j++) {

                            TimeToFailture.TTFData dat = data.get(column * j + i);

                        %>

                        <td class="tbltd1"><%= dat.getTrimmedTime()%></td>

                        <td class="tbltd1"><%= dat.getCount()%></td>

                        <%}%>

                    </tr>

                    <%}%>

                </tbody>

            </table>

        </td>

    </tr>

    <tr style="font-size:bigger">

        <td>

            <h3>Your Mean Time To Failture: 

                <span style="color:red">

                    <%= pageContext.getAttribute("userTimeToFailtureMTTF")%>

                </span>

            </h3>        

        </td>

    </tr>

    <% } %>

</table>

<%@include file="/WEB-INF/jspf/footer.jspf" %>