source: main/waeup.kofa/branches/uli-zc-async/src/waeup/kofa/async.py @ 8916

import datetime
import grok
import os
import time
import zc.async.dispatcher
from cgi import escape
from pytz import utc
from zc.async.interfaces import IQueue
from zc.async.job import Job as AsyncJob
from zc.async.queue import getDefaultQueue
from waeup.kofa.interfaces import IUniversity
from hurry.jqueryui import jqueryui, base, blitzer, ui_lightness, humanity
from hurry.jquery import jquery
from zc.async.interfaces import COMPLETED, NEW, PENDING, ACTIVE, ASSIGNED


def compute(num):
    start = time.time()
    duration = 60
    end = start + duration
    print "MyJob starts computation at ", start
    #from zc.async.local import getJob, getQueue
    myjob = zc.async.local.getJob()
    print "MyJob's job: ", zc.async.local.getJob()
    print "MyJob's queue: ", zc.async.local.getQueue(), list(
        zc.async.local.getQueue())
    while True:
        if time.time() > end:
            break
        time.sleep(1)
        percent = (time.time() - start) * 100.0 / duration
        if percent > 100.0:
            percent = 100.0
        print "MyJob percent: ", percent
        zc.async.local.setLiveAnnotation('percent', percent)
        print "MyJob does something at %s of %s" % (
            time.time() - start, duration)
        print "MyJob's annotations: %r" % dict(myjob.annotations)
        print "MyJob's percent: %r" % zc.async.local.getLiveAnnotation(
            'percent')
    return num * 2

def get_next_num(context):
    num = 1
    print "KEYS: ", [x for x in context['jobs'].keys()]
    while str(num) in [x for x in context['jobs'].keys()]:
        num += 1
    print "NEXT: ", str(num)
    return str(num)

class Job(AsyncJob):
    percent = None
    pass

grok.templatedir('.') #os.path.dirname(__file__))
class ASyncView(grok.View):
    grok.context(IUniversity)
    grok.name('async')
    grok.template('async')

    def update(self,  start=None, DELETE=None, REMOVE=None, *args, **kw):
        humanity.need()
        jqueryui.need()
        # the image was created via http://ajaxload.info/
        self.spinner_url = self.url(
            grok.getSite()) + '/@@/waeup.kofa.browser/square_circles_black.gif'
        print args, kw
        self.dispatcher = zc.async.dispatcher.get()
        site = grok.getSite()
        newq = site.__parent__._p_jar.root()['zc.async'].items()[0][1]
        print "NEW: ", newq, list(newq)


        print "DISP LEN: ", dir(self.dispatcher), self.dispatcher.getStatusInfo(), self.dispatcher.getStatistics(), self.dispatcher.jobs.items() # self.dispatcher.getJobInfo()
        self.queue = IQueue(self.context)
        self.dispatcher2 = self.queue.dispatchers[zc.async.instanceuuid.UUID]
        print "JOBS: ", self.dispatcher.jobs.keys(), self.dispatcher.jobs.values()
        print "DISPATCHERS: ", self.dispatcher, self.dispatcher2
        print "QUEUES: ", self.dispatcher.queues
        print "QUEUE1: ", list(self.dispatcher.queues[''])
        print "QUEUE: ", list(self.queue)
        #print "DISPATCHERS: ", self.queue.dispatchers.items()
        print "DEFAULT: ", getDefaultQueue(self.context), len(getDefaultQueue(self.context))
        print "DELETE: ", DELETE
        if DELETE is not None:
            if DELETE in self.context['jobs']:
                job = self.context['jobs'][DELETE]
                from zc.async.interfaces import COMPLETED, NEW, PENDING
                if job.status in (COMPLETED, NEW):
                    del self.context['jobs'][DELETE]
                    print "DELETED %s" % job
                else:
                    if job in self.queue:
                        print "JOB IN ", self.queue, "!!!!!!!!!!!!!!!!!!"
                        print "QUEUE BEFORE: ", list(self.queue)
                        try:
                            self.queue.remove(job)
                        except:
                            "COULDN'T REMOVE ANYWAY!!"
                        print "QUEUE AFTER: ", list(self.queue)
                        self.queue.pull()
                        print "QUEUE AFTER2: ", list(self.queue)
                    #job_queue = job.queue
                    #agent = job.agent
                    #print "JOB AGENT: ", agent, dir(agent)
                    #print "JOB AGENT QUEUE: ", agent.queue, list(agent.queue)
                    #print "JOB QUEUE: ", job_queue, list(job_queue)
                    #if job in list(job_queue) or True:
                    #    agent.remove(job)
                    #    #job.queue.remove(job)
                    #    print "REMOVED %s from queue %s" % (
                    #        job, job_queue)
                    else:
                        print "CANT FIND JOB in QUEUE"

        #import pdb; pdb.set_trace()
        if start:
            start_time = datetime.datetime.utcnow()
            start_time += datetime.timedelta(seconds=10)
            start_time = utc.localize(start_time)
            print "START"
            print "STARTTIME: ", start_time
            import transaction
            transaction.begin()
            job = self.queue.put(Job(compute, 21),
                                 begin_after=start_time)
            job.annotations['percent'] = 0.0
            print " started: ", job.status, type(job)
            if 'jobs' not in self.context:
                self.context['jobs'] = grok.Container()
            job_id = get_next_num(self.context)
            print "JOB ID: ", job_id, dir(job)
            self.context['jobs'][job_id] = job
            transaction.commit()
            time.sleep(0.5)
            self.redirect(self.url())

    def job_status(self):
        if 'jobs' not in self.context:
            return ''
        result = ""
        #for num, job in enumerate(self.queue):
        for num, job in self.context['jobs'].items():
            result += '<div><form>'
            if job.status in ('completed-status', 'new-status'):
                result += '<a href="?DELETE=%s">delete</a>' %(
                    num)
            else: # job.status == 'pendig-status' or (
                # job.status == 'active-status'):
                result += '<a href="?DELETE=%s">remove from queue</a>' % (
                    num)
            result += '<input type="checkbox" name="remove" />%s %s, %s, %r</form></div>' % (
                num,
                escape('%r' % job),
                job.status,
                dict(job.annotations))
            print "job in queue: ", job, type(job)
        return result

    def NOrender(self):
        print "RENDER: ", self.namespace().items(), type(self.namespace)
        return grok.PageTemplate('Hallo!')
        #print "RENDER: ", self.static['square_circles_black.gif']
        #return r'''
        return '''
<html>
<head>
<title>Async testing</title>
<script type="text/javascript">
$(document).ready(function() {
  var myLoadingDiv = $("#progressbar");
  var mySpinner = $("#loadspinner");
  myLoadingDiv.progressbar({disabled:true});
  function update() {
  $.getJSON("status?",  {jobid: "4",}, function(data) {
    if (data == null) {
      myLoadingDiv.progressbar("disable");
      myLoadingDiv.progressbar("value", 0);
      $("#msg").html("Syncing...");
      clearInterval(intervalID);
      //alert('No Data'):
      }
    else {
      myLoadingDiv.progressbar("enable");
      myLoadingDiv.progressbar("value", data.percent);
      $("#msg").html(data.msg + ' (' + data.status + ') ');
      //alert(data.msg);
      if (data.percent == 100) {
        clearInterval(intervalID);
        }
      }
  });}
  intervalID = setInterval(update, 500);
  //update();
});
</script>
</head>
<body>
<h1>Async stuff</h1>
<div>Dispatcher: %s</div>
<div>Queue: %s</div>
<div>Jobs: %s</div>
<form method="POST">
  <input type="submit" name="reload" value="reload" />
  <input type="submit" name="start" value="start up" />
</form>
<div id="progressbar"
     class="ui-progressbar ui-widget ui-widget-content ui-corner-all">
       <div id="msg">Hi there</div>
</div>
<div id="loadspinner">
</div>
</body>
</htlm>
''' % (
   escape('%r' % self.dispatcher),
   escape('%r' % self.queue),
   self.job_status(),
   )


class ASyncJSON(grok.JSON):
    grok.context(IUniversity)

    def status(self, jobid):
        print "request for ", jobid
        msg = 'please wait...'
        job = self.context['jobs'].get(jobid, None)
        if not job:
            return
        percent = job.annotations.get('percent', None)
        if not percent:
            return
        percent = int(percent+0.5)
        print "percent: ", percent
        if percent >= 100:
            percent = 100
            msg = 'done.'
        status_map = {
            NEW: 'new',
            COMPLETED: 'completed',
            PENDING: 'pending',
            ACTIVE: 'active',
            ASSIGNED: 'assigned',
            }
        return {'msg': msg,
                'percent': percent,
                'status': status_map.get(job.status, 'unknown'),
                }