historicalBarChart = [
    { "type":"bar", "key": "memory", "yAxis": "1", "values": [{ "x":1388552400000 , "y":10},
        { "x":1391230800000 , "y":4}, { "x":1393650000000 , "y":4}, { "x":1396324800000 , "y":12},
        { "x":1398916800000 , "y":3.27}, { "x":1401595200000 , "y":6.07}, { "x":1404187200000 , "y":8.93},
        { "x":1406865600000 , "y":11.61}, { "x":1409544000000 , "y":18.66}, { "x":1412136000000 , "y":19.04},
        { "x":1414814400000 , "y":17.5}, { "x":1417410000000 , "y":15.73}, { "x":1420088400000 , "y":9.62333333333333},
        { "x":1422766800000 , "y":14.29}, { "x":1425186000000 , "y":16.1166666666667} ] } ];
var chart1,chart2,chart3,chart4;
nv.addGraph(function() {
    chart1 = nv.models.multiBarChart()
        .margin({top: 30, right: 60, bottom: 50, left: 100})
        .showLegend(true)
        .reduceXTicks(false)
        .forceY([0, 34.0])
        .showControls(false)
        .stacked(false)
        .logScale(false)
        .legendPos('top')
        .color(d3.scale.category10().range());
    chart1.xAxis
        .tickValues([1388552400000,1391230800000,1393650000000,1396324800000,1398916800000,1401595200000,1404187200000,1406865600000,1409544000000,1412136000000,1414814400000,1417410000000,1420088400000,1422766800000])
        .staggerLabels(false)
        .showMaxMin(false)
        .rotateLabels(90)
        .axisLabel('Timestamp')
        .tickFormat(function(d) {
            return d3.time.format('%b %y')(new Date(d)) });
    chart1.yAxis
        .logScale(false)
        .axisLabel('')
        .tickFormat(d3.format(',.1f'));
    d3.select('#CPUchart svg')
        .datum(historicalBarChart)
        .transition().duration(1000)
        .call(chart1);
    nv.utils.windowResize(chart1.update);
    return chart1;
});
nv.addGraph(function() {
    chart2 = nv.models.multiBarChart()
        .margin({top: 30, right: 60, bottom: 50, left: 100})
        .showLegend(true)
        .reduceXTicks(false)
        .forceY([0, 34.0])
        .showControls(false)
        .stacked(false)
        .logScale(false)
        .legendPos('top')
        .color(d3.scale.category20b().range());
    chart2.xAxis
        .tickValues([1388552400000,1391230800000,1393650000000,1396324800000,1398916800000,1401595200000,1404187200000,1406865600000,1409544000000,1412136000000,1414814400000,1417410000000,1420088400000,1422766800000])
        .staggerLabels(false)
        .showMaxMin(false)
        .rotateLabels(90)
        .axisLabel('Timestamp')
        .tickFormat(function(d) {
            return d3.time.format('%b %y')(new Date(d)) });
    chart2.yAxis
        .logScale(false)
        .axisLabel('')
        .tickFormat(d3.format(',.1f'));
    d3.select('#Memorychart svg')
        .datum(historicalBarChart)
        .transition().duration(1000)
        .call(chart2);
    nv.utils.windowResize(chart2.update);
    return chart2;
});
nv.addGraph(function() {
    chart3 = nv.models.multiBarChart()
        .margin({top: 30, right: 60, bottom: 50, left: 100})
        .showLegend(true)
        .reduceXTicks(false)
        .forceY([0, 34.0])
        .showControls(false)
        .stacked(false)
        .logScale(false)
        .legendPos('top')
        .color(d3.scale.category20c().range());
    chart3.xAxis
        .tickValues([1388552400000,1391230800000,1393650000000,1396324800000,1398916800000,1401595200000,1404187200000,1406865600000,1409544000000,1412136000000,1414814400000,1417410000000,1420088400000,1422766800000])
        .staggerLabels(false)
        .showMaxMin(false)
        .rotateLabels(90)
        .axisLabel('Timestamp')
        .tickFormat(function(d) {
            return d3.time.format('%b %y')(new Date(d)) });
    chart3.yAxis
        .logScale(false)
        .axisLabel('')
        .tickFormat(d3.format(',.1f'));
    d3.select('#Diskchart svg')
        .datum(historicalBarChart)
        .transition().duration(1000)
        .call(chart3);
    nv.utils.windowResize(chart3.update);
    return chart3;
});
nv.addGraph(function() {
    chart4 = nv.models.multiBarChart()
        .margin({top: 30, right: 60, bottom: 50, left: 100})
        .showLegend(true)
        .reduceXTicks(false)
        .forceY([0, 34.0])
        .showControls(false)
        .stacked(false)
        .logScale(false)
        .legendPos('top')
        .color(d3.scale.category50().range());
    chart4.xAxis
        .tickValues([1388552400000,1391230800000,1393650000000,1396324800000,1398916800000,1401595200000,1404187200000,1406865600000,1409544000000,1412136000000,1414814400000,1417410000000,1420088400000,1422766800000])
        .staggerLabels(false)
        .showMaxMin(false)
        .rotateLabels(90)
        .axisLabel('Timestamp')
        .tickFormat(function(d) {
            return d3.time.format('%b %y')(new Date(d)) });
    chart4.yAxis
        .logScale(false)
        .axisLabel('')
        .tickFormat(d3.format(',.1f'));
    d3.select('#Networkchart svg')
        .datum(historicalBarChart)
        .transition().duration(1000)
        .call(chart4);
    nv.utils.windowResize(chart4.update);
    return chart4;
});
function redraw() {
    d3.select('#CPUchart svg')
        .datum(historicalBarChart)
        .transition().duration(500)
        .call(chart1);
    d3.select('#Memorychart svg')
        .datum(historicalBarChart)
        .transition().duration(500)
        .call(chart2);
    d3.select('#Diskchart svg')
        .datum(historicalBarChart)
        .transition().duration(1000)
        .call(chart3);
    d3.select('#Networkchart svg')
        .datum(historicalBarChart)
        .transition().duration(1000)
        .call(chart4);
}

setInterval(function () {
    redraw();
}, 1500);
if(historicalBarChart.length <= 0 ) {
    document.getElementById("CPUchart").innerHTML = "<div id='noData'><b>No Data Available</b></div>";
    document.getElementById("CPUchart").className="nodatadiv";
    document.getElementById("Memorychart").innerHTML = "<div id='noData'><b>No Data Available</b></div>";
    document.getElementById("Memorychart").className="nodatadiv";
    document.getElementById("nodata").className="nodatainner";
}