Commit 5a380da9 authored by Nikos Skalkotos's avatar Nikos Skalkotos
Browse files

Create a new cloud wizard page

Make the cloud selection wizard page an instance of WizardMenuPage
parent b0ddf192
......@@ -252,12 +252,10 @@ def edit_cloud(session, name):
info = Kamaki.get_cloud_by_name(name)
assert info, "Cloud: `%s' does not exist" % name
assert 'url' in info, "Cloud: `%s' does not have a url attr" % name
assert 'token' in info, "Cloud: `%s' does not have a token attr" % name
description = info['description'] if 'description' in info else ""
url = info['url']
token = info['token']
url = info['url'] if 'url' in info else ""
token = info['token'] if 'token' in info else ""
d = session['dialog']
......@@ -48,6 +48,7 @@ from image_creator.dialog_util import extract_image, update_background_title, \
add_cloud, edit_cloud
class WizardExit(Exception):
......@@ -55,8 +56,8 @@ class WizardExit(Exception):
class WizardInvalidData(Exception):
"""Exception triggered when the user provided data are invalid"""
class WizardReloadPage(Exception):
"""Exception that reloads the last WizardPage"""
......@@ -85,7 +86,7 @@ class Wizard:
idx += self.pages[idx].run(self.session, idx, len(self.pages))
except WizardExit:
return False
except WizardInvalidData:
except WizardReloadPage:
if idx >= len(self.pages):
......@@ -146,13 +147,13 @@ class WizardRadioListPage(WizardPage):
w = session['wizard']
choices = []
for i in range(len(self.choices)):
default = 1 if self.choices[i][0] == self.default else 0
choices.append((self.choices[i][0], self.choices[i][1], default))
for choice in self.choices():
default = 1 if choice[0] == self.default else 0
choices.append((choice[0], choice[1], default))
(code, answer) = d.radiolist(
self.message, height=10, width=PAGE_WIDTH, ok_label="Next",
cancel="Back", choices=choices,
self.message, width=PAGE_WIDTH, ok_label="Next", cancel="Back",
choices=choices, height=PAGE_HEIGHT,
title="(%d/%d) %s" % (index + 1, total, self.title))
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
......@@ -182,7 +183,8 @@ class WizardInputPage(WizardPage):
(code, answer) = d.inputbox(
self.message, init=self.init, width=PAGE_WIDTH, ok_label="Next",
cancel="Back", title="(%d/%d) %s" % (index + 1, total, self.title))
cancel="Back", height=PAGE_HEIGHT,
title="(%d/%d) %s" % (index + 1, total, self.title))
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
return self.PREV
......@@ -195,45 +197,100 @@ class WizardInputPage(WizardPage):
return self.NEXT
class WizardMenuPage(WizardPage):
"""Represents a menu dialog in a wizard"""
def __init__(self, name, printable, message, choices, **kargs):
super(WizardMenuPage, self).__init__(**kargs) = name
self.printable = printable
self.message = message = "%s: <none>" % self.printable
self.choices = choices
self.title = kargs['title'] if 'title' in kargs else ''
self.default = kargs['default'] if 'default' in kargs else ""
self.extra = kargs['extra'] if 'extra' in kargs else None
self.extra_label = \
kargs['extra_label'] if 'extra_label' in kargs else 'Extra'
self.fallback = kargs['fallback'] if 'fallback' in kargs else None
def run(self, session, index, total):
d = session['dialog']
w = session['wizard']
extra_button = 1 if self.extra else 0
choices = self.choices()
if len(choices) == 0:
assert self.fallback, "Zero choices and no fallback"
if self.fallback():
raise WizardReloadPage
return self.PREV
default_item = self.default if self.default else choices[0][0]
(code, choice) =
self.message, width=PAGE_WIDTH, ok_label="Next", cancel="Back",
title="(%d/%d) %s" % (index + 1, total, self.title),
choices=choices, height=PAGE_HEIGHT, default_item=default_item,
extra_label=self.extra_label, extra_button=extra_button)
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
return self.PREV
elif code == d.DIALOG_EXTRA:
raise WizardReloadPage
self.default = choice
w[] = self.validate(choice) = "%s: %s" % (self.printable, self.display(w[]))
return self.NEXT
def start_wizard(session):
"""Run the image creation wizard"""
d = session['dialog']
clouds = Kamaki.get_clouds()
if not len(clouds):
if not add_cloud(session):
return False
while 1:
choices = []
for (name, cloud) in clouds.items():
descr = cloud['description'] if 'description' in cloud else ''
choices.append((name, descr))
(code, choice) =
"In this menu you can select existing cloud account to use "
" or add new ones. Press <Select> to select an existing "
"account or <Add> to add a new one.", height=18,
width=PAGE_WIDTH, choices=choices, menu_height=10,
ok_label="Select", extra_button=1, extra_label="Add",
if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
return False
elif code == d.DIALOG_OK: # Select button
account = Kamaki.get_account(choice)
if not account:
if not d.yesno("Then cloud you have selected is not "
"valid! Would you like to edit it?",
width=PAGE_WIDTH, defaultno=0):
edit_cloud(session, choice)
elif code == d.DIALOG_EXTRA: # Add button
distro = session['image'].distro
ostype = session['image'].ostype
def cloud_choices():
choices = []
for (name, cloud) in Kamaki.get_clouds().items():
descr = cloud['description'] if 'description' in cloud else ''
choices.append((name, descr))
return choices
def cloud_add():
return add_cloud(session)
def cloud_none_available():
if not session['dialog'].yesno(
"No available clouds found. Would you like to add one now?",
width=PAGE_WIDTH, defaultno=0):
return add_cloud(session)
return False
def cloud_validate(cloud):
if not Kamaki.get_account(cloud):
if not session['dialog'].yesno(
"The cloud you have selected is not valid! Would you "
"like to edit it now?", width=PAGE_WIDTH, defaultno=0):
if edit_cloud(session, cloud):
return cloud
raise WizardInvalidData
return cloud
cloud = WizardMenuPage(
"Cloud", "Cloud",
"Please select a cloud account or press <Add> to add a new one:",
choices=cloud_choices, extra_label="Add", extra=cloud_add,
title="Clouds", validate=cloud_validate, fallback=cloud_none_available)
name = WizardInputPage(
"ImageName", "Image Name", "Please provide a name for the image:",
title="Image Name", init=ostype if distro == "unknown" else distro)
......@@ -244,28 +301,31 @@ def start_wizard(session):
title="Image Description", init=session['metadata']['DESCRIPTION'] if
'DESCRIPTION' in session['metadata'] else '')
def registration_choices():
return [("Private", "Image is accessible only by this user"),
("Public", "Everyone can create VMs from this image")]
registration = WizardRadioListPage(
"ImageRegistration", "Registration Type",
"Please provide a registration type:",
[("Private", "Image is accessible only by this user"),
("Public", "Everyone can create VMs from this image")],
"Please provide a registration type:", registration_choices,
title="Registration Type", default="Private")
w = Wizard(session)
create_image(session, account)
return False
return True
def create_image(session, account):
def create_image(session):
"""Create an image using the information collected by the wizard"""
d = session['dialog']
image = session['image']
......@@ -296,6 +356,8 @@ def create_image(session, account):
out.output("Uploading image to pithos:")
account = Kamaki.get_account(wizard['Cloud'])
assert account, "Cloud: %s is not valid" % wizard['Cloud']
kamaki = Kamaki(account, out)
name = "%s-%s.diskdump" % (wizard['ImageName'],
......@@ -342,7 +404,7 @@ def create_image(session, account):
msg = "The %s image was successfully uploaded to Pithos and registered " \
"with Cyclades. Would you like to keep a local copy of the image?" \
"with Cyclades. Would you like to keep a local copy?" \
% wizard['ImageRegistration'].lower()
if not d.yesno(msg, width=PAGE_WIDTH):
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