planetlab/slices/leases.js

   1 /* need to put some place else in CSS ? */
   2
   3 /* decorations / headers */
   4
   5 var txt_nodename = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#008"};
   6 var txt_timeslot = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#008"};
   7 var color_rules="#888";
   8 var x_nodename = 200;
   9 var x_sep=10;
  10 var y_header = 12
  11 var y_sep = 20
  12
  13 /* lease dimensions and colors */
  14 var x_grain = 24;
  15 var y_node = 15;
  16 var radius= 6;
  17 var color_otherslice="#f08080";
  18 var color_thisslice="#a5e0af";
  19 var color_free="#f0fcd4";
  20
  21 /* other slices name */
  22 var txt_slice = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#444",
  23                  "font-size": 15 };
  24
  25 var leases_namespace = {
  26
  27     init_scheduler: function () {
  28         // Grab the data
  29         var data = [],
  30         axisx = [],
  31         axisy = [],
  32         table = $$("table#leases_data")[0];
  33         // the nodenames
  34         table.getElementsBySelector("tbody>tr>th").each(function (cell) {
  35             axisy.push(getInnerText(cell));
  36         });
  37         // the timeslot labels
  38         table.getElementsBySelector("thead>tr>th").each(function (cell) {
  39             /* [0]: timestamp -- [1]: displayable*/
  40             axisx.push(getInnerText(cell).split("&"));
  41         });
  42         // leases - expect colspan to describe length in grains
  43         table.getElementsBySelector("tbody>tr>td").each(function (cell) {
  44             data.push(new Array (getInnerText(cell),cell.colSpan));
  45         });
  46         // slicename : the upper-left cell
  47         var this_slicename = getInnerText(table.getElementsBySelector("thead>tr>td")[0]);
  48         table.hide();
  49         var nb_nodes = axisy.length, nb_grains = axisx.length;
  50         var total_width = x_nodename + nb_grains*x_grain;
  51         var total_height = 2*y_header + nb_nodes*(y_node+y_sep);
  52         // no radius supported
  53         paper = Raphael("leases_area", total_width, total_height);
  54 //        color = table.css("color");
  55
  56         var top=0;
  57         var left=x_nodename;
  58
  59         // the time slots legend
  60         var col=0;
  61         axisx.each (function (timeslot_spec) {
  62             timeslot=timeslot_spec[1];
  63             var y = top+y_header;
  64             if (col%2 == 0) y += y_header;
  65             col +=1;
  66             var timelabel=paper.text(left,y,timeslot).attr(txt_timeslot)
  67                                .attr({"font-size":y_header, "text-anchor":"middle"});
  68             var path_spec="M"+left+" "+(y+y_header/2)+"L"+left+" "+total_height;
  69             var rule=paper.path(path_spec).attr({'stroke':1,"fill":color_rules});
  70             left+=x_grain;
  71         });
  72
  73         top += 2*y_header+y_sep;
  74
  75         var data_index=0;
  76         axisy.each(function (node) {
  77             left=0;
  78             var nodelabel = paper.text(x_nodename-x_sep,top+y_node/2,node).attr(txt_nodename)
  79                                 .attr ({"font-size":y_node, "text-anchor":"end","baseline":"bottom"});
  80
  81             left += x_nodename;
  82             var grain=0;
  83             while (grain < nb_grains) {
  84                 slicename=data[data_index][0];
  85                 duration=data[data_index][1];
  86                 var lease=paper.rect (left,top,x_grain*duration,y_node,radius);
  87                 var color;
  88                 if (slicename == "") {
  89                     color=color_free;
  90                     lease.click ( function (e) { window.console.log ('free ' + lease.from_time + '--' + lease.until_time); } );
  91                 } else if (slicename == this_slicename) {
  92                     color=color_thisslice;
  93                     lease.click ( function (e) { window.console.log ('mine ' + lease.from_time + '--' + lease.until_time); } );
  94                 } else {
  95                     color=color_otherslice;
  96                     /* to display the name of the slice that owns that lease */
  97                     var slicelabel = paper.text (left+(x_grain*duration)/2,top+y_node/2,slicename)
  98                                            .attr(txt_slice);
  99                     /* hide it right away */
 100                     slicelabel.hide();
 101                     lease.label=slicelabel;
 102                     lease.hover ( function (e) { this.label.toFront(); this.label.show(); },
 103                                   function (e) { this.label.hide(); } );
 104                 }
 105                 lease.attr("fill",color);
 106                 lease.from_time = axisx[grain%nb_grains][0];
 107                 grain += duration;
 108                 lease.until_time = axisx[grain%nb_grains][0];
 109                 left += x_grain*duration;
 110                 data_index +=1;
 111             }
 112             top += y_node + y_sep;
 113         });
 114     }
 115
 116 /*
 117         r.rect(10, 10, total_width-20, total_height-20, radius).attr({fill: "#888", stroke: "#fff"});
 118         for (var i = 0, ii = axisx.length; i < ii; i++) {
 119             r.text(leftgutter + X * (i + .5), 294, axisx[i]).attr(txt);
 120         }
 121         for (var i = 0, ii = axisy.length; i < ii; i++) {
 122             r.text(10, Y * (i + .5), axisy[i]).attr(txt);
 123         }
 124         var o = 0;
 125         for (var i = 0, ii = axisy.length; i < ii; i++) {
 126             for (var j = 0, jj = axisx.length; j < jj; j++) {
 127                 var R = data[o] && Math.min(Math.round(Math.sqrt(data[o] / Math.PI) * 4), max);
 128                 if (R) {
 129                     (function (dx, dy, R, value) {
 130                         var color = "hsb(" + [(1 - R / max) * .5, 1, .75] + ")";
 131                         var dt = r.circle(dx + 60 + R, dy + 10, R).attr({stroke: "none", fill: color});
 132                         if (R < 6) {
 133                             var bg = r.circle(dx + 60 + R, dy + 10, 6).attr({stroke: "none", fill: "#000", opacity: .4}).hide();
 134                         }
 135                         var lbl = r.text(dx + 60 + R, dy + 10, data[o])
 136                             .attr({"font": '10px Fontin-Sans, Arial', stroke: "none", fill: "#fff"}).hide();
 137                         var dot = r.circle(dx + 60 + R, dy + 10, max).attr({stroke: "none", fill: "#000", opacity: 0});
 138                         dot[0].onmouseover = function () {
 139                             if (bg) {
 140                                 bg.show();
 141                             } else {
 142                                 var clr = Raphael.rgb2hsb(color);
 143                                 clr.b = .5;
 144                                 dt.attr("fill", Raphael.hsb2rgb(clr).hex);
 145                             }
 146                             lbl.show();
 147                         };
 148                         dot[0].onmouseout = function () {
 149                             if (bg) {
 150                                 bg.hide();
 151                             } else {
 152                                 dt.attr("fill", color);
 153                             }
 154                             lbl.hide();
 155                         };
 156                     })(leftgutter + X * (j + .5) - 60 - R, Y * (i + .5) - 10, R, data[o]);
 157                 }
 158                 o++;
 159             }
 160         }
 161     }
 162 */
 163 };
 164
 165 Event.observe(window, 'load', leases_namespace.init_scheduler);