128 lines
4.6 KiB
Python
128 lines
4.6 KiB
Python
import jinja2
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import marshmallow
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from jinja2 import Template
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from marshmallow import INCLUDE
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from marshmallow_enum import EnumField
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from crc import ma
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from crc.api.common import ApiError
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from crc.models.workflow import WorkflowStatus
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class Task(object):
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def __init__(self, id, name, title, type, state, form, documentation, data):
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self.id = id
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self.name = name
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self.title = title
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self.type = type
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self.state = state
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self.form = form
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self.documentation = documentation
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self.data = data
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@classmethod
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def from_spiff(cls, spiff_task):
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documentation = spiff_task.task_spec.documentation if hasattr(spiff_task.task_spec, "documentation") else ""
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instance = cls(spiff_task.id,
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spiff_task.task_spec.name,
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spiff_task.task_spec.description,
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spiff_task.task_spec.__class__.__name__,
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spiff_task.get_state_name(),
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None,
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documentation,
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spiff_task.data)
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if hasattr(spiff_task.task_spec, "form"):
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instance.form = spiff_task.task_spec.form
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if documentation != "" and documentation is not None:
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instance.process_documentation(documentation)
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return instance
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def process_documentation(self, documentation):
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'''Runs markdown documentation through the Jinja2 processor to inject data
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create loops, etc...'''
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try:
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template = Template(documentation)
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self.documentation = template.render(**self.data)
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except jinja2.exceptions.TemplateError as ue:
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raise ApiError(code="template_error", message="Error processing template for task %s: %s" %
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(self.name, str(ue)), status_code=500)
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# TODO: Catch additional errors and report back.
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class OptionSchema(ma.Schema):
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class Meta:
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fields = ["id", "name"]
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class ValidationSchema(ma.Schema):
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class Meta:
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fields = ["name", "config"]
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class PropertiesSchema(ma.Schema):
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class Meta:
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fields = ["id", "value"]
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class FormFieldSchema(ma.Schema):
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class Meta:
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fields = [
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"id", "type", "label", "default_value", "options", "validation", "properties", "value"
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]
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default_value = marshmallow.fields.String(required=False, allow_none=True)
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options = marshmallow.fields.List(marshmallow.fields.Nested(OptionSchema))
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validation = marshmallow.fields.List(marshmallow.fields.Nested(ValidationSchema))
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properties = marshmallow.fields.List(marshmallow.fields.Nested(PropertiesSchema))
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class FormSchema(ma.Schema):
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key = marshmallow.fields.String(required=True, allow_none=False)
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fields = marshmallow.fields.List(marshmallow.fields.Nested(FormFieldSchema))
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class TaskSchema(ma.Schema):
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class Meta:
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fields = ["id", "name", "title", "type", "state", "form", "documentation", "data"]
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documentation = marshmallow.fields.String(required=False, allow_none=True)
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form = marshmallow.fields.Nested(FormSchema, required=False, allow_none=True)
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title = marshmallow.fields.String(required=False, allow_none=True)
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@marshmallow.post_load
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def make_task(self, data, **kwargs):
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return Task(**data)
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class WorkflowApi(object):
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def __init__(self, id, status, user_tasks, last_task, next_task,
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spec_version, is_latest_spec, workflow_spec_id):
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self.id = id
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self.status = status
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self.user_tasks = user_tasks
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self.last_task = last_task
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self.next_task = next_task
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self.workflow_spec_id = workflow_spec_id
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self.spec_version = spec_version
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self.is_latest_spec = is_latest_spec
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class WorkflowApiSchema(ma.Schema):
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class Meta:
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model = WorkflowApi
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fields = ["id", "status", "user_tasks", "last_task", "next_task",
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"workflow_spec_id", "spec_version", "is_latest_spec"]
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unknown = INCLUDE
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status = EnumField(WorkflowStatus)
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user_tasks = marshmallow.fields.List(marshmallow.fields.Nested(TaskSchema, dump_only=True))
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last_task = marshmallow.fields.Nested(TaskSchema, dump_only=True)
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next_task = marshmallow.fields.Nested(TaskSchema, dump_only=True, required=False)
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@marshmallow.post_load
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def make_workflow(self, data, **kwargs):
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keys = ['id', 'status', 'user_tasks', 'last_task', 'next_task',
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'workflow_spec_id', 'spec_version', 'is_latest_spec']
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filtered_fields = {key: data[key] for key in keys}
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return WorkflowApi(**filtered_fields)
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