nagios4/html/js/histogram-graph.js

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JavaScript
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2017-05-19 23:37:19 +02:00
angular.module("histogramApp")
.directive("nagiosHistogram", function() {
return {
templateUrl: "histogram-graph.html",
restrict: "AE",
scope: {
cgiurl: "@cgiurl",
reporttype: "@reporttype",
host: "@host",
service: "@service",
timeperiod: "@timeperiod",
t1: "@t1",
t2: "@t2",
breakdown: "@breakdown",
graphevents: "@graphevents",
graphstatetypes: "@graphstatetypes",
assumestateretention: "@assumestateretention",
initialstateslogged: "@initialstateslogged",
ignorerepeatedstates: "@ignorerepeatedstates",
lastUpdate: "=lastUpdate",
reload: "@reload",
build: "&build"
},
controller: function($scope, $element, $attrs, $http,
histogramEventsService, statisticsBreakdown) {
// Layout variables
$scope.fontSize = 11;
$scope.graphMargin = {
top: 40,
right: 290,
bottom: 84,
left: 60
};
$scope.svgHeight = 320;
$scope.svgWidth = 900;
$scope.dateFormat = d3.time.format("%a %b %d %H:%M:%S %Y");
// Application state variables
$scope.fetchingAlerts = false;
$scope.$watch("reload", function(newValue) {
// Remove any previous graphs
d3.select("g#grid").selectAll("path").remove();
// Set the start and end times
$scope.startTime = $scope.t1 * 1000;
$scope.endTime = $scope.t2 * 1000;
// Show the histogram
showHistogram();
});
// Get the statistics breakdown label
$scope.statisticsBreakdownLabel = function(value) {
for (var i = 0; i < statisticsBreakdown.length; i++) {
var bd = statisticsBreakdown[i];
if (bd.value == value) {
return bd.label;
}
}
};
// Get the x-axis scale domain
var getXScaleDomain = function() {
// Set up the x-axis scale domain
var domain = [];
switch($scope.breakdown) {
case "monthly":
domain = d3.range(0,13);
break;
case "dayofweek":
domain = d3.range(0,8);
break;
case "hourly":
domain = d3.range(0,25);
break;
case "dayofmonth":
default:
domain = d3.range(0,32);
break;
}
return domain;
};
// Get the x-axis tick values
var getXAxisTickValue = function(d) {
// Set up the x-axis tick values
var values = [];
switch($scope.breakdown) {
case "monthly":
var months = ["January", "February", "March",
"April", "May", "June", "July", "August",
"September", "October", "November",
"December", "January"];
return months[d % 12];
break;
case "dayofweek":
var days = ["Sunday", "Monday", "Tuesday",
"Wednesday", "Thursday", "Friday",
"Saturday", "Sunday"];
return days[d % 7];
break;
case "hourly":
var hourFormat = d3.format("02d");
return hourFormat(d % 24) + ":00";
break;
case "dayofmonth":
default:
var value = ((d + 1) % 32);
return (value == 0 ? 1 : value);
break;
}
};
// Get the number of periods for the breakdown
$scope.getBreakdownPeriods = function() {
switch($scope.breakdown) {
case "monthly":
return 12;
break;
case "dayofweek":
return 7;
break;
case "hourly":
return 24;
break;
case "dayofmonth":
default:
return 31;
break;
}
};
// Determine the y-axis maximum
getYMax = function() {
var states = ["up", "down", "unreachable", "ok",
"warning", "unknown", "critical" ];
var yMax = 0;
states.forEach(function(e, i, a) {
yMax = Math.max($scope.summary[$scope.breakdown].maxima[e], yMax);
});
return yMax;
};
// Display the graph
var displayGraph = function() {
// Local variables
var graphHeight = $scope.svgHeight -
($scope.graphMargin.bottom +
$scope.graphMargin.top);
var graphWidth = $scope.svgWidth -
($scope.graphMargin.right +
$scope.graphMargin.left);
var gridCenter = $scope.graphMargin.left +
graphWidth / 2;
// Get the header group
var gridGroup = d3.select("svg#histogram")
.select("g#grid")
.attr({
transform: function() {
return "translate(" +
$scope.graphMargin.left + "," +
$scope.graphMargin.top + ")";
}
});
// Build the x-axis scale
var xScale = d3.scale.ordinal()
.domain(getXScaleDomain())
.rangePoints([0, graphWidth]);
// Build the x-axis
var xAxis = d3.svg.axis()
.scale(xScale)
.orient("bottom")
.tickSize(graphHeight)
.tickFormat(function(d) {
return getXAxisTickValue(d);
});
// Display the x-axis
d3.select("g#xaxis").call(xAxis);
// Rotate the value labels for the x-axis
var translate = -(graphHeight + ($scope.fontSize / 2));
d3.select("g#xaxis")
.selectAll("text")
.attr({
transform: function() {
return "rotate(-90) translate(" +
translate + "," + translate + ")";
}
})
.style({
"text-anchor": "end"
});
// Build the y-axis scale
var yScale = d3.scale.linear()
.domain([getYMax(), 0])
.rangeRound([0, graphHeight]);
// Build the y-axis
var yAxis = d3.svg.axis()
.scale(yScale)
.orient("left")
.tickSize(graphWidth);
// Display the y-axis
d3.select("g#yaxis").call(yAxis);
// Generate the lines
var states = [];
if($scope.reporttype == "hosts") {
states = ["up", "down", "unreachable"];
}
else {
states = ["ok", "warning", "unknown", "critical"];
}
states.forEach(function(e, i, a) {
var line = d3.svg.line()
.x(function(d, i) { return xScale(i); })
.y(function(d) { return yScale(d[e]); })
.interpolate("linear");
gridGroup.append("path")
.attr({
"d": line($scope.summary[$scope.breakdown].details),
"class": e
});
});
};
// Initialize the data for display
var initializeData = function(obj, size) {
var states = ["up", "down", "unreachable", "ok",
"warning", "unknown", "critical" ];
obj.maxima = new Object;
obj.minima = new Object;
obj.totals = new Object;
states.forEach(function(e, i, a) {
obj.maxima[e] = 0;
obj.minima[e] = -1;
obj.totals[e] = 0;
});
obj.details = new Array;
for(var i = 0; i < size; i++) {
obj.details.push({
"up": 0,
"down": 0,
"unreachable": 0,
"ok": 0,
"warning": 0,
"unknown": 0,
"critical": 0
});
}
};
// Update the summary data
var updateData = function(obj, state, index) {
obj.details[index][state]++;
obj.maxima[state] = Math.max(obj.maxima[state],
obj.details[index][state]);
obj.totals[state]++;
if(index == 0) {
// If this is the first entry in the breakdown,
// also update the last because the graph
// "wraps around"
obj.details[obj.details.length - 1][state]++;
}
};
// Calculate the minima
var calculateMinima = function(obj) {
for(var key in obj.minima) {
obj.minima[key] = obj.details[0][key];
for(var j = 1; j < obj.details.length; j++) {
obj.minima[key] = Math.min(obj.minima[key],
obj.details[j][key]);
}
}
};
// Summarize the data for display
var summarizeData = function() {
// Initialize the data
$scope.summary = {
monthly: new Object,
dayofmonth: new Object,
dayofweek: new Object,
hourly: new Object,
};
initializeData($scope.summary.monthly, 13);
initializeData($scope.summary.dayofmonth, 32);
initializeData($scope.summary.dayofweek, 8);
initializeData($scope.summary.hourly, 25);
$scope.json.data.alertlist.forEach(function(e, i, a) {
// Create a Javascript date object
var ts = new Date(e.timestamp);
// Update the monthly data
updateData($scope.summary.monthly, e.state,
ts.getMonth());
// Update the day of month data
updateData($scope.summary.dayofmonth, e.state,
ts.getDate() - 1);
// Update the day of week data
updateData($scope.summary.dayofweek, e.state,
ts.getDay());
// Update the hourly data
updateData($scope.summary.hourly, e.state,
ts.getHours());
});
// Calculate the minima
calculateMinima($scope.summary.monthly);
calculateMinima($scope.summary.dayofmonth);
calculateMinima($scope.summary.dayofweek);
calculateMinima($scope.summary.hourly);
};
// Show the graph
var showHistogram = function() {
if(!$scope.build()) {
return;
}
// Build the list of parameters for the JSON query
var parameters = {
query: "alertlist",
formatoptions: "enumerate bitmask",
objecttypes: ($scope.reporttype == "hosts" ?
"host" : "service"),
hostname: $scope.host,
starttime: $scope.t1,
endtime: $scope.t2,
statetypes: function() {
switch($scope.graphstatetypes) {
case 1:
return "soft";
break;
case 2:
return "hard";
break;
case 3:
default:
return "hard soft";
break;
}
}(),
backtrackedarchives: $scope.backtracks
};
switch($scope.reporttype) {
case "hosts":
var events = histogramEventsService.hostEvents.filter(function(e) {
return e.value == $scope.graphevents;
});
if(events.length > 0) {
parameters.hoststates = events[0].states;
}
else {
parameters.hoststates = "up down unreachable";
}
break;
case "services":
var events = histogramEventsService.serviceEvents.filter(function(e) {
return e.value == $scope.graphevents;
});
parameters.servicedescription = $scope.service;
if(events.length > 0) {
parameters.servicestates = events[0].states;
}
else {
parameters.servicestates =
"ok warning unknown critical";
}
break;
}
var getConfig = {
params: parameters,
withCredentials: true
};
// Where to place the spinner
var spinnerdiv = d3.select("div#spinner");
var spinner = null;
// Send the JSON query
$http.get($scope.cgiurl + "archivejson.cgi", getConfig)
.error(function(err) {
console.warn(err);
// Stop the spinner
$scope.fetchingAlerts = false;
spinner.stop();
})
.success(function(json) {
// Stop the spinner
$scope.fetchingAlerts = false;
spinner.stop();
// Save the json results
$scope.json = json;
// Record the query time
$scope.lastUpdate = new Date(json.result.query_time);
// Summarize the results
summarizeData();
// Display the graph
displayGraph();
// Display the summary
});
// Start the spinner
$scope.fetchingAlerts = true;
spinner = new Spinner($scope.spinnerOpts).spin(spinnerdiv[0][0]);
};
}
};
});