Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
(function(window) {
// cache the templates we use on this page as global variables (asynchronously)
jQuery.get(getRelativePath("../components/hystrixCommand/templates/hystrixCircuit.html"), function(data) {
hystrixTemplateCircuit = data;
});
jQuery.get(getRelativePath("../components/hystrixCommand/templates/hystrixCircuitContainer.html"), function(data) {
hystrixTemplateCircuitContainer = data;
});
function getRelativePath(path) {
var p = location.pathname.slice(0, location.pathname.lastIndexOf("/")+1);
return p + path;
}
/**
* Object containing functions for displaying and updating the UI with streaming data.
*
* Publish this externally as "HystrixCommandMonitor"
*/
window.HystrixCommandMonitor = function(index, containerId, args) {
var self = this; // keep scope under control
self.args = args;
if(self.args == undefined) {
self.args = {};
}
this.index = index;
this.containerId = containerId;
/**
* Initialization on construction
*/
// intialize various variables we use for visualization
var maxXaxisForCircle="40%";
var maxYaxisForCircle="40%";
var maxRadiusForCircle="125";
// CIRCUIT_BREAKER circle visualization settings
self.circuitCircleRadius = d3.scale.pow().exponent(0.5).domain([0, 400]).range(["5", maxRadiusForCircle]); // requests per second per host
self.circuitCircleYaxis = d3.scale.linear().domain([0, 400]).range(["30%", maxXaxisForCircle]);
self.circuitCircleXaxis = d3.scale.linear().domain([0, 400]).range(["30%", maxYaxisForCircle]);
self.circuitColorRange = d3.scale.linear().domain([10, 25, 40, 50]).range(["green", "#FFCC00", "#FF9900", "red"]);
self.circuitErrorPercentageColorRange = d3.scale.linear().domain([0, 10, 35, 50]).range(["grey", "black", "#FF9900", "red"]);
/**
* We want to keep sorting in the background since data values are always changing, so this will re-sort every X milliseconds
* to maintain whatever sort the user (or default) has chosen.
*
* In other words, sorting only for adds/deletes is not sufficient as all but alphabetical sort are dynamically changing.
*/
setInterval(function() {
// sort since we have added a new one
self.sortSameAsLast();
}, 10000);
/**
* END of Initialization on construction
*/
/**
* Event listener to handle new messages from EventSource as streamed from the server.
*/
/* public */ self.eventSourceMessageListener = function(e) {
var data = JSON.parse(e.data);
if(data) {
data.index = self.index;
// check for reportingHosts (if not there, set it to 1 for singleHost vs cluster)
if(!data.reportingHosts) {
data.reportingHosts = 1;
}
if(data && data.type == 'HystrixCommand') {
if (data.deleteData == 'true') {
deleteCircuit(data.escapedName);
} else {
displayCircuit(data);
}
}
}
};
/**
* Pre process the data before displying in the UI.
* e.g Get Averages from sums, do rate calculation etc.
*/
function preProcessData(data) {
// set defaults for values that may be missing from older streams
setIfMissing(data, "rollingCountBadRequests", 0);
// assert all the values we need
validateData(data);
// escape string used in jQuery & d3 selectors
data.escapedName = data.name.replace(/([ !"#$%&'()*+,./:;<=>?@[\]^`{|}~])/g,'\\$1') + '_' + data.index;
// do math
convertAllAvg(data);
calcRatePerSecond(data);
}
function setIfMissing(data, key, defaultValue) {
if(data[key] == undefined) {
data[key] = defaultValue;
}
}
/**
* Since the stream of data can be aggregated from multiple hosts in a tiered manner
* the aggregation just sums everything together and provides us the denominator (reportingHosts)
* so we must divide by it to get an average per instance value.
*
* We want to do this on any numerical values where we want per instance rather than cluster-wide sum.
*/
function convertAllAvg(data) {
convertAvg(data, "errorPercentage", true);
convertAvg(data, "latencyExecute_mean", false);
convertAvg(data, "latencyTotal_mean", false);
}
function convertAvg(data, key, decimal) {
if (decimal) {
data[key] = getInstanceAverage(data[key], data["reportingHosts"], decimal);
} else {
data[key] = getInstanceAverage(data[key], data["reportingHosts"], decimal);
}
}
function getInstanceAverage(value, reportingHosts, decimal) {
if (decimal) {
return roundNumber(value/reportingHosts);
} else {
return Math.floor(value/reportingHosts);
}
}
function calcRatePerSecond(data) {
var numberSeconds = data["propertyValue_metricsRollingStatisticalWindowInMilliseconds"] / 1000;
var totalRequests = data["requestCount"];
if (totalRequests < 0) {
totalRequests = 0;
}
data["ratePerSecond"] = roundNumber(totalRequests / numberSeconds);
data["ratePerSecondPerHost"] = roundNumber(totalRequests / numberSeconds / data["reportingHosts"]) ;
}
function validateData(data) {
assertNotNull(data,"reportingHosts");
assertNotNull(data,"type");
assertNotNull(data,"name");
assertNotNull(data,"group");
// assertNotNull(data,"currentTime");
assertNotNull(data,"isCircuitBreakerOpen");
assertNotNull(data,"errorPercentage");
assertNotNull(data,"errorCount");
assertNotNull(data,"requestCount");
assertNotNull(data,"rollingCountCollapsedRequests");
assertNotNull(data,"rollingCountExceptionsThrown");
assertNotNull(data,"rollingCountFailure");
assertNotNull(data,"rollingCountFallbackFailure");
assertNotNull(data,"rollingCountFallbackRejection");
assertNotNull(data,"rollingCountFallbackSuccess");
assertNotNull(data,"rollingCountResponsesFromCache");
assertNotNull(data,"rollingCountSemaphoreRejected");
assertNotNull(data,"rollingCountShortCircuited");
assertNotNull(data,"rollingCountSuccess");
assertNotNull(data,"rollingCountThreadPoolRejected");
assertNotNull(data,"rollingCountTimeout");
assertNotNull(data,"rollingCountBadRequests");
assertNotNull(data,"currentConcurrentExecutionCount");
assertNotNull(data,"latencyExecute_mean");
assertNotNull(data,"latencyExecute");
assertNotNull(data,"latencyTotal_mean");
assertNotNull(data,"latencyTotal");
assertNotNull(data,"propertyValue_circuitBreakerRequestVolumeThreshold");
assertNotNull(data,"propertyValue_circuitBreakerSleepWindowInMilliseconds");
assertNotNull(data,"propertyValue_circuitBreakerErrorThresholdPercentage");
assertNotNull(data,"propertyValue_circuitBreakerForceOpen");
assertNotNull(data,"propertyValue_executionIsolationStrategy");
assertNotNull(data,"propertyValue_executionIsolationThreadTimeoutInMilliseconds");
assertNotNull(data,"propertyValue_executionIsolationThreadInterruptOnTimeout");
// assertNotNull(data,"propertyValue_executionIsolationThreadPoolKeyOverride");
assertNotNull(data,"propertyValue_executionIsolationSemaphoreMaxConcurrentRequests");
assertNotNull(data,"propertyValue_fallbackIsolationSemaphoreMaxConcurrentRequests");
assertNotNull(data,"propertyValue_requestCacheEnabled");
assertNotNull(data,"propertyValue_requestLogEnabled");
assertNotNull(data,"propertyValue_metricsRollingStatisticalWindowInMilliseconds");
}
function assertNotNull(data, key) {
if(data[key] == undefined) {
throw new Error("Key Missing: " + key + " for " + data.name);
}
}
/**
* Method to display the CIRCUIT data
*
* @param data
*/
/* private */ function displayCircuit(data) {
try {
preProcessData(data);
} catch (err) {
log("Failed preProcessData: " + err.message);
return;
}
// add the 'addCommas' function to the 'data' object so the HTML templates can use it
data.addCommas = addCommas;
// add the 'roundNumber' function to the 'data' object so the HTML templates can use it
data.roundNumber = roundNumber;
// add the 'getInstanceAverage' function to the 'data' object so the HTML templates can use it
data.getInstanceAverage = getInstanceAverage;
var addNew = false;
// check if we need to create the container
if(!$('#CIRCUIT_' + data.escapedName).length) {
// args for display
if(self.args.includeDetailIcon != undefined && self.args.includeDetailIcon) {
data.includeDetailIcon = true;
}else {
data.includeDetailIcon = false;
}
// it doesn't exist so add it
var html = tmpl(hystrixTemplateCircuitContainer, data);
// remove the loading thing first
$('#' + containerId + ' span.loading').remove();
// now create the new data and add it
$('#' + containerId + '').append(html);
// add the default sparkline graph
d3.selectAll('#graph_CIRCUIT_' + data.escapedName + ' svg').append("svg:path");
// remember this is new so we can trigger a sort after setting data
addNew = true;
}
// now update/insert the data
$('#CIRCUIT_' + data.escapedName + ' div.monitor_data').html(tmpl(hystrixTemplateCircuit, data));
var ratePerSecond = data.ratePerSecond;
var ratePerSecondPerHost = data.ratePerSecondPerHost;
var ratePerSecondPerHostDisplay = ratePerSecondPerHost;
var errorThenVolume = isNaN( ratePerSecond )? -1: (data.errorPercentage * 100000000) + ratePerSecond;
// set the rates on the div element so it's available for sorting
$('#CIRCUIT_' + data.escapedName).attr('rate_value', ratePerSecond);
$('#CIRCUIT_' + data.escapedName).attr('error_then_volume', errorThenVolume);
// update errorPercentage color on page
$('#CIRCUIT_' + data.escapedName + ' a.errorPercentage').css('color', self.circuitErrorPercentageColorRange(data.errorPercentage));
updateCircle('circuit', '#CIRCUIT_' + data.escapedName + ' circle', ratePerSecondPerHostDisplay, data.errorPercentage);
if(data.graphValues) {
// we have a set of values to initialize with
updateSparkline('circuit', '#CIRCUIT_' + data.escapedName + ' path', data.graphValues);
} else {
updateSparkline('circuit', '#CIRCUIT_' + data.escapedName + ' path', ratePerSecond);
}
if(addNew) {
// sort since we added a new circuit
self.sortSameAsLast();
}
}
/* round a number to X digits: num => the number to round, dec => the number of decimals */
/* private */ function roundNumber(num) {
var dec=1;
var result = Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
var resultAsString = result.toString();
if(resultAsString.indexOf('.') == -1) {
resultAsString = resultAsString + '.0';
}
return resultAsString;
};
/* private */ function updateCircle(variablePrefix, cssTarget, rate, errorPercentage) {
var newXaxisForCircle = self[variablePrefix + 'CircleXaxis'](rate);
if(parseInt(newXaxisForCircle) > parseInt(maxXaxisForCircle)) {
newXaxisForCircle = maxXaxisForCircle;
}
var newYaxisForCircle = self[variablePrefix + 'CircleYaxis'](rate);
if(parseInt(newYaxisForCircle) > parseInt(maxYaxisForCircle)) {
newYaxisForCircle = maxYaxisForCircle;
}
var newRadiusForCircle = self[variablePrefix + 'CircleRadius'](rate);
if(parseInt(newRadiusForCircle) > parseInt(maxRadiusForCircle)) {
newRadiusForCircle = maxRadiusForCircle;
}
d3.selectAll(cssTarget)
.transition()
.duration(400)
.attr("cy", newYaxisForCircle)
.attr("cx", newXaxisForCircle)
.attr("r", newRadiusForCircle)
.style("fill", self[variablePrefix + 'ColorRange'](errorPercentage));
}
/* private */ function updateSparkline(variablePrefix, cssTarget, newDataPoint) {
var currentTimeMilliseconds = new Date().getTime();
var data = self[variablePrefix + cssTarget + '_data'];
if(typeof data == 'undefined') {
// else it's new
if(typeof newDataPoint == 'object') {
// we received an array of values, so initialize with it
data = newDataPoint;
} else {
// v: VALUE, t: TIME_IN_MILLISECONDS
data = [{"v":parseFloat(newDataPoint),"t":currentTimeMilliseconds}];
}
self[variablePrefix + cssTarget + '_data'] = data;
} else {
if(typeof newDataPoint == 'object') {
/* if an array is passed in we'll replace the cached one */
data = newDataPoint;
} else {
// else we just add to the existing one
data.push({"v":parseFloat(newDataPoint),"t":currentTimeMilliseconds});
}
}
while(data.length > 200) { // 400 should be plenty for the 2 minutes we have the scale set to below even with a very low update latency
// remove data so we don't keep increasing forever
data.shift();
}
if(data.length == 1 && data[0].v == 0) {
//console.log("we have a single 0 so skipping");
// don't show if we have a single 0
return;
}
if(data.length > 1 && data[0].v == 0 && data[1].v != 0) {
//console.log("we have a leading 0 so removing it");
// get rid of a leading 0 if the following number is not a 0
data.shift();
}
var xScale = d3.time.scale().domain([new Date(currentTimeMilliseconds-(60*1000*2)), new Date(currentTimeMilliseconds)]).range([0, 140]);
var yMin = d3.min(data, function(d) { return d.v; });
var yMax = d3.max(data, function(d) { return d.v; });
var yScale = d3.scale.linear().domain([yMin, yMax]).nice().range([60, 0]); // y goes DOWN, so 60 is the "lowest"
sparkline = d3.svg.line()
// assign the X function to plot our line as we wish
.x(function(d,i) {
// return the X coordinate where we want to plot this datapoint based on the time
return xScale(new Date(d.t));
})
.y(function(d) {
return yScale(d.v);
})
.interpolate("basis");
d3.selectAll(cssTarget).attr("d", sparkline(data));
}
/* private */ function deleteCircuit(circuitName) {
$('#CIRCUIT_' + circuitName).remove();
}
};
// public methods for sorting
HystrixCommandMonitor.prototype.sortByVolume = function() {
var direction = "desc";
if(this.sortedBy == 'rate_desc') {
direction = 'asc';
}
this.sortByVolumeInDirection(direction);
};
HystrixCommandMonitor.prototype.sortByVolumeInDirection = function(direction) {
this.sortedBy = 'rate_' + direction;
$('#' + this.containerId + ' div.monitor').tsort({order: direction, attr: 'rate_value'});
};
HystrixCommandMonitor.prototype.sortAlphabetically = function() {
var direction = "asc";
if(this.sortedBy == 'alph_asc') {
direction = 'desc';
}
this.sortAlphabeticalInDirection(direction);
};
HystrixCommandMonitor.prototype.sortAlphabeticalInDirection = function(direction) {
this.sortedBy = 'alph_' + direction;
$('#' + this.containerId + ' div.monitor').tsort("p.name", {order: direction});
};
HystrixCommandMonitor.prototype.sortByError = function() {
var direction = "desc";
if(this.sortedBy == 'error_desc') {
direction = 'asc';
}
this.sortByErrorInDirection(direction);
};
HystrixCommandMonitor.prototype.sortByErrorInDirection = function(direction) {
this.sortedBy = 'error_' + direction;
$('#' + this.containerId + ' div.monitor').tsort(".errorPercentage .value", {order: direction});
};
HystrixCommandMonitor.prototype.sortByErrorThenVolume = function() {
var direction = "desc";
if(this.sortedBy == 'error_then_volume_desc') {
direction = 'asc';
}
this.sortByErrorThenVolumeInDirection(direction);
};
HystrixCommandMonitor.prototype.sortByErrorThenVolumeInDirection = function(direction) {
this.sortedBy = 'error_then_volume_' + direction;
$('#' + this.containerId + ' div.monitor').tsort({order: direction, attr: 'error_then_volume'});
};
HystrixCommandMonitor.prototype.sortByLatency90 = function() {
var direction = "desc";
if(this.sortedBy == 'lat90_desc') {
direction = 'asc';
}
this.sortedBy = 'lat90_' + direction;
this.sortByMetricInDirection(direction, ".latency90 .value");
};
HystrixCommandMonitor.prototype.sortByLatency99 = function() {
var direction = "desc";
if(this.sortedBy == 'lat99_desc') {
direction = 'asc';
}
this.sortedBy = 'lat99_' + direction;
this.sortByMetricInDirection(direction, ".latency99 .value");
};
HystrixCommandMonitor.prototype.sortByLatency995 = function() {
var direction = "desc";
if(this.sortedBy == 'lat995_desc') {
direction = 'asc';
}
this.sortedBy = 'lat995_' + direction;
this.sortByMetricInDirection(direction, ".latency995 .value");
};
HystrixCommandMonitor.prototype.sortByLatencyMean = function() {
var direction = "desc";
if(this.sortedBy == 'latMean_desc') {
direction = 'asc';
}
this.sortedBy = 'latMean_' + direction;
this.sortByMetricInDirection(direction, ".latencyMean .value");
};
HystrixCommandMonitor.prototype.sortByLatencyMedian = function() {
var direction = "desc";
if(this.sortedBy == 'latMedian_desc') {
direction = 'asc';
}
this.sortedBy = 'latMedian_' + direction;
this.sortByMetricInDirection(direction, ".latencyMedian .value");
};
HystrixCommandMonitor.prototype.sortByMetricInDirection = function(direction, metric) {
$('#' + this.containerId + ' div.monitor').tsort(metric, {order: direction});
};
// this method is for when new divs are added to cause the elements to be sorted to whatever the user last chose
HystrixCommandMonitor.prototype.sortSameAsLast = function() {
if(this.sortedBy == 'alph_asc') {
this.sortAlphabeticalInDirection('asc');
} else if(this.sortedBy == 'alph_desc') {
this.sortAlphabeticalInDirection('desc');
} else if(this.sortedBy == 'rate_asc') {
this.sortByVolumeInDirection('asc');
} else if(this.sortedBy == 'rate_desc') {
this.sortByVolumeInDirection('desc');
} else if(this.sortedBy == 'error_asc') {
this.sortByErrorInDirection('asc');
} else if(this.sortedBy == 'error_desc') {
this.sortByErrorInDirection('desc');
} else if(this.sortedBy == 'error_then_volume_asc') {
this.sortByErrorThenVolumeInDirection('asc');
} else if(this.sortedBy == 'error_then_volume_desc') {
this.sortByErrorThenVolumeInDirection('desc');
} else if(this.sortedBy == 'lat90_asc') {
this.sortByMetricInDirection('asc', '.latency90 .value');
} else if(this.sortedBy == 'lat90_desc') {
this.sortByMetricInDirection('desc', '.latency90 .value');
} else if(this.sortedBy == 'lat99_asc') {
this.sortByMetricInDirection('asc', '.latency99 .value');
} else if(this.sortedBy == 'lat99_desc') {
this.sortByMetricInDirection('desc', '.latency99 .value');
} else if(this.sortedBy == 'lat995_asc') {
this.sortByMetricInDirection('asc', '.latency995 .value');
} else if(this.sortedBy == 'lat995_desc') {
this.sortByMetricInDirection('desc', '.latency995 .value');
} else if(this.sortedBy == 'latMean_asc') {
this.sortByMetricInDirection('asc', '.latencyMean .value');
} else if(this.sortedBy == 'latMean_desc') {
this.sortByMetricInDirection('desc', '.latencyMean .value');
} else if(this.sortedBy == 'latMedian_asc') {
this.sortByMetricInDirection('asc', '.latencyMedian .value');
} else if(this.sortedBy == 'latMedian_desc') {
this.sortByMetricInDirection('desc', '.latencyMedian .value');
}
};
// default sort type and direction
this.sortedBy = 'alph_asc';
// a temporary home for the logger until we become more sophisticated
function log(message) {
console.log(message);
};
function addCommas(nStr){
nStr += '';
if(nStr.length <=3) {
return nStr; //shortcut if we don't need commas
}
x = nStr.split('.');
x1 = x[0];
x2 = x.length > 1 ? '.' + x[1] : '';
var rgx = /(\d+)(\d{3})/;
while (rgx.test(x1)) {
x1 = x1.replace(rgx, '$1' + ',' + '$2');
}
return x1 + x2;
}
})(window);
