35c82af8be
*Renaming internal variables from savanna to sahara where appropriate. *Other savanna instances are renamed to something more generic Partial-Implements: blueprint savanna-renaming-dashboard Change-Id: Idc843e5c7ed0d42443c49842818f82751bfc7095
260 lines
8.9 KiB
Python
260 lines
8.9 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from django.utils.translation import ugettext as _
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from horizon import forms
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from horizon import workflows
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class Parameter(object):
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def __init__(self, config):
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self.name = config['name']
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self.description = config.get('description', "No description")
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self.required = not config['is_optional']
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self.default_value = config.get('default_value', None)
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self.initial_value = self.default_value
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self.param_type = config['config_type']
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self.priority = int(config.get('priority', 2))
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def build_control(parameter):
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attrs = {"priority": parameter.priority,
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"placeholder": parameter.default_value}
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if parameter.param_type == "string":
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return forms.CharField(
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widget=forms.TextInput(attrs=attrs),
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label=parameter.name,
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required=(parameter.required and
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parameter.default_value is None),
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help_text=parameter.description,
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initial=parameter.initial_value)
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if parameter.param_type == "int":
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return forms.IntegerField(
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widget=forms.TextInput(attrs=attrs),
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label=parameter.name,
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required=parameter.required,
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help_text=parameter.description,
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initial=parameter.initial_value)
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elif parameter.param_type == "bool":
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return forms.BooleanField(
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widget=forms.CheckboxInput(attrs=attrs),
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label=parameter.name,
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required=False,
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initial=parameter.initial_value,
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help_text=parameter.description)
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elif parameter.param_type == "dropdown":
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return forms.ChoiceField(
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widget=forms.CheckboxInput(attrs=attrs),
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label=parameter.name,
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required=parameter.required,
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choices=parameter.choices,
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help_text=parameter.description)
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def _create_step_action(name, title, parameters, advanced_fields=None,
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service=None):
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class_fields = {}
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contributes_field = ()
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for param in parameters:
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field_name = "CONF:" + service + ":" + param.name
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contributes_field += (field_name,)
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class_fields[field_name] = build_control(param)
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if advanced_fields is not None:
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for ad_field_name, ad_field_value in advanced_fields:
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class_fields[ad_field_name] = ad_field_value
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action_meta = type('Meta', (object, ),
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dict(help_text_template="nodegroup_templates/"
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"_fields_help.html"))
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class_fields['Meta'] = action_meta
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action = type(str(title),
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(workflows.Action,),
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class_fields)
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step_meta = type('Meta', (object,), dict(name=title))
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step = type(str(name),
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(workflows.Step, ),
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dict(name=name,
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process_name=name,
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action_class=action,
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contributes=contributes_field,
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Meta=step_meta))
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return step
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def build_node_group_fields(action, name, template, count):
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action.fields[name] = forms.CharField(
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label=_("Name"),
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required=True,
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widget=forms.TextInput())
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action.fields[template] = forms.CharField(
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label=_("Node group cluster"),
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required=True,
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widget=forms.HiddenInput())
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action.fields[count] = forms.IntegerField(
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label=_("Count"),
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required=True,
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min_value=0,
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widget=forms.HiddenInput())
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def parse_configs_from_context(context, defaults):
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configs_dict = dict()
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for key, val in context.items():
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if str(key).startswith("CONF"):
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key_split = str(key).split(":")
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service = key_split[1]
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config = key_split[2]
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if service not in configs_dict:
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configs_dict[service] = dict()
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if (val is None or
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unicode(defaults[service][config]) == unicode(val)):
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continue
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configs_dict[service][config] = val
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return configs_dict
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def safe_call(func, *args, **kwargs):
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try:
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return func(*args, **kwargs)
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except Exception:
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return None
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def get_plugin_and_hadoop_version(request):
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plugin_name = request.REQUEST["plugin_name"]
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hadoop_version = request.REQUEST["hadoop_version"]
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return (plugin_name, hadoop_version)
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class PluginAndVersionMixin(object):
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def _generate_plugin_version_fields(self, sahara):
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plugins = sahara.plugins.list()
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plugin_choices = [(plugin.name, plugin.title) for plugin in plugins]
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self.fields["plugin_name"] = forms.ChoiceField(
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label=_("Plugin Name"),
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required=True,
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choices=plugin_choices,
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widget=forms.Select(attrs={"class": "plugin_name_choice"}))
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for plugin in plugins:
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field_name = plugin.name + "_version"
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choice_field = forms.ChoiceField(
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label=_("Hadoop Version"),
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required=True,
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choices=[(version, version) for version in plugin.versions],
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widget=forms.Select(
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attrs={"class": "plugin_version_choice "
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+ field_name + "_choice"})
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)
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self.fields[field_name] = choice_field
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class PatchedDynamicWorkflow(workflows.Workflow):
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"""Overrides Workflow to fix its issues."""
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def _ensure_dynamic_exist(self):
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if not hasattr(self, 'dynamic_steps'):
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self.dynamic_steps = list()
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def _register_step(self, step):
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# Use that method instead of 'register' to register step.
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# Note that a step could be registered in descendant class constructor
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# only before this class constructor is invoked.
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self._ensure_dynamic_exist()
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self.dynamic_steps.append(step)
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def _order_steps(self):
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# overrides method of Workflow
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# crutch to fix https://bugs.launchpad.net/horizon/+bug/1196717
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# and another not filed issue that dynamic creation of tabs is
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# not thread safe
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self._ensure_dynamic_exist()
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self._registry = dict([(step, step(self))
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for step in self.dynamic_steps])
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return list(self.default_steps) + self.dynamic_steps
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class ServiceParametersWorkflow(PatchedDynamicWorkflow):
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"""Base class for Workflows having services tabs with parameters."""
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def _populate_tabs(self, general_parameters, service_parameters):
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# Populates tabs for 'general' and service parameters
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# Also populates defaults and initial values
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self.defaults = dict()
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self._init_step('general', 'General Parameters', general_parameters)
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for service, parameters in service_parameters.items():
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self._init_step(service, service + ' Parameters', parameters)
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def _init_step(self, service, title, parameters):
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if not parameters:
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return
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self._populate_initial_values(service, parameters)
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step = _create_step_action(service, title=title, parameters=parameters,
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service=service)
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self.defaults[service] = dict()
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for param in parameters:
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self.defaults[service][param.name] = param.default_value
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self._register_step(step)
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def _set_configs_to_copy(self, configs):
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self.configs_to_copy = configs
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def _populate_initial_values(self, service, parameters):
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if not hasattr(self, 'configs_to_copy'):
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return
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configs = self.configs_to_copy
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for param in parameters:
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if (service in configs and
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param.name in configs[service]):
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param.initial_value = configs[service][param.name]
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class StatusFormatMixin(workflows.Workflow):
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def __init__(self, request, context_seed, entry_point, *args, **kwargs):
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super(StatusFormatMixin, self).__init__(request,
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context_seed,
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entry_point,
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*args,
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**kwargs)
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def format_status_message(self, message):
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error_description = getattr(self, 'error_description', None)
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if error_description:
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return error_description
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else:
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return message % self.context[self.name_property]
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