Python ZooKeeper Examples

Example #1

File: views.py Project: ztwu/hue

def edit_as_text(request, id, path):
    cluster = get_cluster_or_404(id)
    zk = ZooKeeper(cluster['rest_url'])
    node = zk.get(path)

    if request.method == 'POST':
        if not request.user.is_superuser:
            raise PopupException(_('You are not a superuser'))
        form = EditZNodeForm(request.POST)
        if form.is_valid():
            zk.set(path, form.cleaned_data['data'])

        return tree(request, id, path)
    else:
        form = EditZNodeForm(
            dict(data=node.get('data64', '').decode('base64').strip(),
                 version=node.get('version', '-1')))

    return render(
        'edit.mako', request, {
            'cluster': cluster,
            'path': path,
            'form': form,
            'clusters': CLUSTERS.get(),
        })

Example #2

File: views.py Project: ztwu/hue

def create(request, id, path):
    if not request.user.is_superuser:
        raise PopupException(_('You are not a superuser'))
    cluster = get_cluster_or_404(id)

    if request.method == 'POST':
        form = CreateZNodeForm(request.POST)
        if form.is_valid():
            zk = ZooKeeper(cluster['rest_url'])

            full_path = ("%s/%s" % (path, form.cleaned_data['name'])).replace(
                '//', '/')

            zk.create(full_path,
                      form.cleaned_data['data'],
                      sequence=form.cleaned_data['sequence'])
            return tree(request, id, path)
    else:
        form = CreateZNodeForm()

    return render(
        'create.mako', request, {
            'cluster': cluster,
            'path': path,
            'form': form,
            'clusters': CLUSTERS.get(),
        })

Example #3

File: views.py Project: branchp/hue

def edit_as_base64(request, id, path):
    cluster = get_cluster_or_404(id)
    zk = ZooKeeper(cluster['rest_url'])
    node = zk.get(path)

    if request.method == 'POST':
        form = EditZNodeForm(request.POST)
        if form.is_valid():
            # TODO is valid base64 string?
            data = form.cleaned_data['data'].decode('base64')
            zk.set(path, data, form.cleaned_data['version'])

        return tree(request, id, path)
    else:
        form = EditZNodeForm(dict(\
          data=node.get('data64', ''),
          version=node.get('version', '-1')))

    return render(
        'edit.mako', request, {
            'cluster': cluster,
            'path': path,
            'form': form,
            'clusters': CLUSTERS.get(),
        })

Example #4

File: views.py Project: ymc/hue

def tree(request, id, path):
  cluster = get_cluster_or_404(id)
  zk = ZooKeeper(cluster['rest_url'])

  znode = zk.get(path)
  children = sorted(zk.get_children_paths(path))

  return render('tree.mako', request, {'cluster': cluster, 'path': path, 'znode': znode, 'children': children, 'clusters': CLUSTERS.get(),})

Example #5

File: views.py Project: ymc/hue

def delete(request, id, path):
  cluster = get_cluster_or_404(id)
  redir = {}
  if request.method == 'POST':
    zk = ZooKeeper(cluster['rest_url'])
    try:
      zk.recursive_delete(path)
    except ZooKeeper.NotFound:
      pass
    redir = {
      'redirect': reverse('zookeeper:tree', kwargs={'id':id, 'path': path[:path.rindex('/')] or '/'})
    }
  return HttpResponse(json.dumps(redir), mimetype="application/json")

Example #6

File: views.py Project: Web5design/hue

def edit_as_text(request, id, path):
  cluster = get_cluster_or_404(id)
  zk = ZooKeeper(cluster['rest_url'])
  node = zk.get(path)

  if request.method == 'POST':
    form = EditZNodeForm(request.POST)
    if form.is_valid():
      zk.set(path, form.cleaned_data['data'])

    return tree(request, id, path)
  else:
    form = EditZNodeForm(dict(data=node.get('data64', '').decode('base64').strip(), version=node.get('version', '-1')))

  return render('edit.mako', request, {'cluster': cluster, 'path': path, 'form': form, 'clusters': CLUSTERS.get(),})

Example #7

File: views.py Project: Web5design/hue

def create(request, id, path):
  cluster = get_cluster_or_404(id)

  if request.method == 'POST':
    form = CreateZNodeForm(request.POST)
    if form.is_valid():
      zk = ZooKeeper(cluster['rest_url'])

      full_path = ("%s/%s" % (path, form.cleaned_data['name'])).replace('//', '/')

      zk.create(full_path, form.cleaned_data['data'], sequence = form.cleaned_data['sequence'])
      return tree(request, id, path)
  else:
    form = CreateZNodeForm()

  return render('create.mako', request, {'cluster': cluster, 'path': path, 'form': form, 'clusters': CLUSTERS.get(),})

Example #8

def delete(request, id, path):
  if not is_admin(request.user):
    raise PopupException(_('You are not a superuser'))
  cluster = get_cluster_or_404(id)

  redir = {}
  if request.method == 'POST':
    zk = ZooKeeper(cluster['rest_url'])
    try:
      zk.recursive_delete(path)
    except ZooKeeper.NotFound:
      pass
    redir = {
      'redirect': reverse('zookeeper:tree', kwargs={'id':id, 'path': path[:path.rindex('/')] or '/'})
    }

  return JsonResponse(redir)

Example #9

File: views.py Project: cloudera/hue

def delete(request, id, path):
  if not is_admin(request.user):
    raise PopupException(_('You are not a superuser'))
  cluster = get_cluster_or_404(id)

  redir = {}
  if request.method == 'POST':
    zk = ZooKeeper(cluster['rest_url'])
    try:
      zk.recursive_delete(path)
    except ZooKeeper.NotFound:
      pass
    redir = {
      'redirect': reverse('zookeeper:tree', kwargs={'id':id, 'path': path[:path.rindex('/')] or '/'})
    }

  return JsonResponse(redir)

Example #10

File: views.py Project: 15580056814/hue

def edit_as_base64(request, id, path):
  cluster = get_cluster_or_404(id)
  zk = ZooKeeper(cluster['rest_url'])
  node = zk.get(path)

  if request.method == 'POST':
    if not request.user.is_superuser:
      raise PopupException(_('You are not a superuser'))
    form = EditZNodeForm(request.POST)
    if form.is_valid():
      # TODO is valid base64 string?
      data = form.cleaned_data['data'].decode('base64')
      zk.set(path, data, form.cleaned_data['version'])

    return tree(request, id, path)
  else:
    form = EditZNodeForm(dict(\
      data=node.get('data64', ''),
      version=node.get('version', '-1')))

  return render('edit.mako', request, {'cluster': cluster, 'path': path, 'form': form, 'clusters': CLUSTERS.get(),})