1 /* Thierry Parmentelat -- INRIA */
3 /* need to put some place else in CSS ? */
5 // space for the nodenames
7 // right space after the nodename - removed from the above
9 // height for the (two) rows of timelabels
11 // space between nodes
14 // 1-grain leases attributes
15 // leases_w is configurable from html
22 /* decorations / headers */
23 /* note: looks like the 'font' attr is not effective... */
26 var attr_rules={'fill':"#888", 'stroke-dasharray':'- ', 'stroke-width':0.5};
27 // set font-size separately in here rather than depend on the height
28 var txt_timelabel = {"font": 'Times, "Trebuchet MS", Verdana, Arial, Helvetica, sans-serif',
29 stroke: "none", fill: "#008", 'font-size': 9};
30 var txt_allnodes = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#404"};
31 var txt_nodelabel = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#008"};
33 var attr_timebutton = {'fill':'#bbf', 'stroke': '#338','stroke-width':1,
34 'stroke-linecap':'round', 'stroke-linejoin':'miter', 'stroke-miterlimit':3};
35 var attr_daymarker = {'stroke':'#000','stroke-width':2};
36 var attr_half_daymarker = {'stroke':'#444','stroke-width':2};
38 /* lease dimensions and colors */
39 /* refrain from using gradient color, seems to not be animated properly */
40 /* lease was originally free and is still free */
41 var attr_lease_free_free={'fill':"#def", 'stroke-width':0.5, 'stroke-dasharray':''};
42 /* lease was originally free and is now set for our usage */
43 var attr_lease_free_mine={'fill':"green", 'stroke-width':1, 'stroke-dasharray':'-..'};
44 /* was mine and is still mine */
45 var attr_lease_mine_mine={'fill':"#beb", 'stroke-width':0.5, 'stroke-dasharray':''};
46 /* was mine and is about to be released */
47 var attr_lease_mine_free={'fill':"white", 'stroke-width':1, 'stroke-dasharray':'-..'};
48 var attr_lease_other={'fill':"#f88"};
50 /* other slices name */
51 var txt_otherslice = {"font": '"Trebuchet MS", Verdana, Arial, Helvetica, sans-serif', stroke: "none", fill: "#444",
54 ////////////////////////////////////////////////////////////
55 // the scheduler object
56 function Scheduler () {
58 // xxx-hacky dunno how to retrieve this object from an ajax callback
59 Scheduler.scheduler=this;
61 // the data contains slice names, and lease_id, we need this to find our own leases (mine)
65 // store the result of an ajax request in the leases_data table
66 this.set_html = function (html_data) {
67 var table_text = $$("table#leases_data")[0].innerHTML;
68 $$("table#leases_data")[0].innerHTML=html_data;
69 table_text = $$("table#leases_data")[0].innerHTML;
74 // the names of the hidden fields that hold the input to this class
75 // are hard-wired for now
76 this.parse_html = function () {
78 var table = $$("table#leases_data")[0];
79 // no reservable nodes - no data
80 if ( ! table) return false;
83 var data = [], axisx = [], axisy = [];
84 table.getElementsBySelector("tbody>tr>th").each(function (cell) {
85 axisy.push(getInnerText(cell));
87 // test for at least one entry; other wise this means we haven't retrieved
89 if (axisy.length <1) return false;
91 // the timeslot labels
92 table.getElementsBySelector("thead>tr>th").each(function (cell) {
93 /* [0]: timestamp -- [1]: displayable*/
94 axisx.push(getInnerText(cell).split("&"));
97 // leases - expect colspan to describe length in grains
98 // the text contents is expected to be lease_id & slicename
99 table.getElementsBySelector("tbody>tr>td").each(function (cell) {
101 var slice_attributes=getInnerText(cell).split('&');
102 // booked leases come with lease id and slice name
103 if (slice_attributes.length == 2) {
104 // leases is booked : slice_id, slice_name, duration in grains
105 cell_data=new Array (slice_attributes[0], slice_attributes[1], cell.colSpan);
107 cell_data = new Array ('','',cell.colSpan);
109 data.push(cell_data);
118 // how many time slots
119 this.nb_grains = function () { return this.axisx.length;}
123 this.draw_area = function (canvas_id) {
124 this.total_width = x_nodelabel + this.nb_grains()*this.leases_w;
125 this.total_height = 2*y_header /* the timelabels */
126 + 2*y_sep /* extra space */
127 + y_node /* all-nodes & timebuttons row */
128 + (this.axisy.length)*(y_node+y_sep); /* the regular nodes and preceding space */
129 // reuse for paper if exists with same size, or (re-)create otherwise
131 if (this.paper == null) {
132 paper = Raphael (canvas_id, this.total_width+x_sep, this.total_height);
133 } else if (this.paper.width==this.total_width && this.paper.height==this.total_height) {
137 $$("#"+canvas_id)[0].innerHTML="";
138 paper = Raphael (canvas_id, this.total_width+x_sep, this.total_height);
142 // the path for the triangle-shaped buttons
143 this.timebutton_path="M1,0L"+(this.leases_w-1)+",0L"+(this.leases_w/2)+","+y_header+"L1,0";
145 var axisx=this.axisx;
147 var axisy=this.axisy;
148 // maintain the list of nodelabels for the 'all nodes' button
151 ////////// create the time slots legend
153 var left=x_nodelabel;
155 var daymarker_height= 2*y_header+2*y_sep + (axisy.length+1)*(y_node+y_sep);
156 var daymarker_path="M0,0L0," + daymarker_height;
158 var half_daymarker_off= 2*y_header+y_sep;
159 var half_daymarker_path="M0," + half_daymarker_off + "L0," + daymarker_height;
162 for (var i=0, len=axisx.length; i < len; ++i) {
163 // pick the printable part
164 var timelabel=axisx[i][1];
165 var y = top+y_header;
166 if (col%2 == 0) y += y_header;
168 // display time label
169 var timelabel=paper.text(left,y,timelabel).attr(txt_timelabel)
170 .attr({"text-anchor":"middle"});
171 // draw vertical line
172 var path_spec="M"+left+" "+(y+y_header/2)+"L"+left+" "+this.total_height;
173 var rule=paper.path(path_spec).attr(attr_rules);
174 // show a day marker when relevant
175 var timestamp=parseInt(axisx[i][0]);
176 if ( (timestamp%(24*3600))==0) {
177 paper.path(daymarker_path).attr({'translation':left+','+top}).attr(attr_daymarker);
178 } else if ( (timestamp%(12*3600))==0) {
179 paper.path(half_daymarker_path).attr({'translation':left+','+top}).attr(attr_daymarker);
181 left+=(this.leases_w);
184 ////////// the row with the timeslot buttons (the one labeled 'All nodes')
185 this.granularity=axisx[1][0]-axisx[0][0];
187 // move two lines down
188 top += 2*y_header+2*y_sep;
191 var allnodes = paper.text (x_nodelabel-x_sep,top+y_node/2,"All nodes").attr(txt_allnodes)
192 .attr ({"font-size":y_node, "text-anchor":"end","baseline":"bottom"});
193 allnodes.scheduler=this;
194 allnodes.click(allnodes_methods.click);
196 for (var i=0, len=axisx.length; i < len; ++i) {
197 var timebutton=paper.path(this.timebutton_path).attr({'translation':left+','+top}).attr(attr_timebutton);
198 timebutton.from_time=axisx[i][0];
199 timebutton.scheduler=this;
200 timebutton.click(timebutton_methods.click);
201 left+=(this.leases_w);
204 //////// the body of the scheduler : loop on nodes
208 for (var i=0, len=axisy.length; i<len; ++i) {
209 var nodename=axisy[i];
211 var nodelabel = paper.text(x_nodelabel-x_sep,top+y_node/2,nodename).attr(txt_nodelabel)
212 .attr ({"font-size":y_node, "text-anchor":"end","baseline":"bottom"});
213 nodelabel_methods.selected(nodelabel,1);
214 nodelabel.click(nodelabel_methods.click);
215 this.nodelabels.push(nodelabel);
219 while (grain < this.nb_grains()) {
220 lease_id=this.data[data_index][0];
221 slicename=this.data[data_index][1];
222 duration=this.data[data_index][2];
223 var lease=paper.rect (left,top,this.leases_w*duration,y_node,radius);
224 // record scheduler in lease - early as we need this in init_other
225 lease.scheduler=this;
226 lease.lease_id=lease_id;
227 lease.nodename=nodename;
228 lease.nodelabel=nodelabel;
229 if (slicename == "") {
230 lease.initial="free";
231 lease_methods.init_free(lease);
232 } else if (slicename == this.slicename) {
233 lease.initial="mine";
234 lease_methods.init_mine(lease);
236 lease.initial="other";
237 lease_methods.init_other(lease,slicename);
239 lease.from_time = axisx[grain%this.nb_grains()][0];
241 lease.until_time = axisx[grain%this.nb_grains()][0];
243 this.leases.push(lease);
244 // move on with the loop
245 left += this.leases_w*duration;
248 top += y_node + y_sep;
252 this.submit = function () {
253 document.body.style.cursor = "wait";
254 var actions=new Array();
255 for (var i=0, len=this.leases.length; i<len; ++i) {
256 var lease=this.leases[i];
257 if (lease.current != lease.initial) {
258 var from_time=lease.from_time;
259 var until_time=lease.until_time;
260 /* scan the leases just after this one and merge if appropriate */
261 /* this makes sense when adding leases only though */
262 if (lease.current=='mine') {
264 while (j<len && lease_methods.compare (lease, until_time, this.leases[j])) {
265 // window.console.log('merging index='+i+' initial='+lease.initial+' current='+lease.current);
266 // window.console.log('merged index='+j+' initial='+this.leases[j].initial+' current='+this.leases[j].current);
267 until_time=this.leases[j].until_time;
271 if (lease.current!='free') { // lease to add
272 actions.push(new Array('add-leases',
273 new Array(lease.nodename),
277 } else { // lease to delete
278 actions.push(new Array ('delete-leases',
283 slice_id=this.slice_id;
284 // Ajax.Request comes with prototype
285 var ajax=new Ajax.Request('/planetlab/common/actions.php',
287 parameters:{'action':'manage-leases',
288 'actions':actions.toJSON()},
289 onSuccess: function(transport) {
290 var response = transport.responseText || "no response text";
291 document.body.style.cursor = "default";
292 // alert("Server answered:\n\n" + response + "\n\nPress OK to refresh page");
293 Scheduler.scheduler.refresh();
295 onFailure: function(){
296 document.body.style.cursor = "default";
297 alert("Could not reach server, sorry...\n\nPress OK to refresh page");
298 // not too sure what to do here ...
299 Scheduler.scheduler.refresh();
304 this.clear = function () {
305 for (var i=0, len=this.leases.length; i<len; ++i) {
306 var lease=this.leases[i];
307 if (lease.current != lease.initial) {
308 if (lease.initial == 'free') lease_methods.init_free(lease,lease_methods.click_mine);
309 else lease_methods.init_mine(lease,lease_methods.click_free);
314 // re-read settings from the html, ajax-aquire the html text for the leases_data table
315 // store it in the html tree, parse it, and refresh graphic
316 this.refresh = function () {
317 this.slice_id=getInnerText($$("span#leases_slice_id")[0]).strip();
318 this.slicename=getInnerText($$("span#leases_slicename")[0]).strip();
319 this.leases_granularity=getInnerText($$("span#leases_granularity")[0]).strip();
320 this.leases_offset=$("leases_offset_input").value.strip();
321 this.leases_slots=$("leases_slots_input").value.strip();
322 this.leases_w=parseInt($("leases_w_input").value.strip());
324 document.body.style.cursor = "wait";
325 var ajax=new Ajax.Request('/planetlab/slices/leases-data.php',
327 parameters:{'slice_id':this.slice_id,
328 'slicename':this.slicename,
329 'leases_granularity':this.leases_granularity,
330 'leases_offset':this.leases_offset,
331 'leases_slots':this.leases_slots,
332 'leases_w':this.leases_w},
333 onSuccess: function (transport) {
334 var response = transport.responseText || "no response text";
335 // window.console.log("received from ajax=[["+response+"]]");
336 var scheduler=Scheduler.scheduler;
337 if ( ! scheduler.set_html (response))
338 alert ("Something wrong .. Could not store ajax result..");
339 else if ( ! scheduler.parse_html())
340 alert ("Error: could not parse ajax result..\nIf your session has expired, you need to log back in");
342 scheduler.draw_area("leases_area");
343 document.body.style.cursor = "default";
345 onFailure: function(){
346 document.body.style.cursor = "default";
347 alert("Could not reach server, sorry...\n\n");
355 //////////////////////////////////////// couldn't find how to inhererit from the raphael objects...
357 //////////////////// the 'all nodes' button
358 var allnodes_methods = {
359 click: function (event) {
360 var scheduler=this.scheduler;
361 /* decide what to do */
363 for (var i=0, len=scheduler.nodelabels.length; i<len; ++i)
364 if (! scheduler.nodelabels[i].selected) unselected++;
365 /* if at least one is not selected : select all */
366 var new_state = (unselected >0) ? 1 : 0;
367 for (var i=0, len=scheduler.nodelabels.length; i<len; ++i)
368 nodelabel_methods.selected(scheduler.nodelabels[i],new_state);
372 //////////////////// the buttons for managing the whole timeslot
373 var timebutton_methods = {
376 click: function (event) {
377 var scheduler = this.scheduler;
378 var from_time = this.from_time;
379 var until_time = from_time + scheduler.granularity;
380 /* scan leases on selected nodes, store in two arrays */
381 var relevant_free=[], relevant_mine=[];
382 for (var i=0,len=scheduler.leases.length; i<len; ++i) {
383 var scan=scheduler.leases[i];
384 if ( ! scan.nodelabel.selected) continue;
386 if (scan.from_time<=from_time && scan.until_time>=until_time) {
387 if (scan.current == "free") relevant_free.push(scan);
388 else if (scan.current == "mine") relevant_mine.push(scan);
391 // window.console.log("Found " + relevant_free.length + " free and " + relevant_mine.length + " mine");
392 /* decide what to do, whether book or release */
393 if (relevant_mine.length==0 && relevant_free.length==0) {
394 alert ("Nothing to do in this timeslot on the selected nodes");
397 // if at least one is free, let's book
398 if (relevant_free.length > 0) {
399 for (var i=0, len=relevant_free.length; i<len; ++i) {
400 var lease=relevant_free[i];
401 lease_methods.init_mine(lease,lease_methods.click_free);
403 // otherwise we unselect
405 for (var i=0, len=relevant_mine.length; i<len; ++i) {
406 var lease=relevant_mine[i];
407 lease_methods.init_free(lease,lease_methods.click_mine);
413 //////////////////// the nodelabel buttons
414 var nodelabel_methods = {
416 // set selected mode and render visually
417 selected: function (nodelabel, flag) {
418 nodelabel.selected=flag;
419 nodelabel.attr({'font-weight': (flag ? 'bold' : 'normal')});
423 click: function (event) {
424 nodelabel_methods.selected( this, ! this.selected );
429 //////////////////// the lease buttons
430 var lease_methods = {
432 /* in the process of merging leases before posting to the API */
433 compare: function (lease, until_time, next_lease) {
434 return (next_lease['nodename'] == lease['nodename'] &&
435 next_lease['from_time'] == until_time &&
436 next_lease['initial'] == lease['initial'] &&
437 next_lease['current'] == lease['current']);
440 init_free: function (lease, unclick) {
441 lease.current="free";
443 lease.animate((lease.initial=="free") ? attr_lease_free_free : attr_lease_mine_free,anim_delay);
444 // keep track of the current status
446 lease.click (lease_methods.click_free);
447 if (unclick) lease.unclick(unclick);
450 // find out all the currently free leases that overlap this one
451 click_free: function (event) {
452 var scheduler = this.scheduler;
453 lease_methods.init_mine(this,lease_methods.click_free);
456 init_mine: function (lease, unclick) {
457 lease.current="mine";
458 lease.animate((lease.initial=="mine") ? attr_lease_mine_mine : attr_lease_free_mine,anim_delay);
459 lease.click (lease_methods.click_mine);
460 if (unclick) lease.unclick(unclick);
463 click_mine: function (event) {
464 var scheduler = this.scheduler;
465 // this lease was originally free but is now marked for booking
466 // we free just this lease
467 lease_methods.init_free(this, lease_methods.click_mine);
471 init_other: function (lease, slicename) {
472 lease.animate (attr_lease_other,anim_delay);
473 /* a text obj to display the name of the slice that owns that lease */
474 var otherslicelabel = lease.scheduler.paper.text (lease.attr("x")+lease.attr("width")/2,
476 lease.attr("y")+lease.attr("height")/2,slicename).attr(txt_otherslice);
477 /* hide it right away */
478 otherslicelabel.hide();
480 lease.label=otherslicelabel;
481 lease.hover ( function (e) { this.label.toFront(); this.label.show(); },
482 function (e) { this.label.hide(); } );
486 function init_scheduler () {
488 var scheduler = new Scheduler ();
489 // parse the table with data, and if not empty, draw the scheduler
492 // attach behaviour to buttons
493 $("leases_submit").onclick = function () { scheduler.submit(); }
494 $("leases_refresh").onclick = function () { scheduler.refresh();}
498 Event.observe(window, 'load', init_scheduler);