Sequence(Token(segments=1, nonempty=True), unique=True),
'required':
Boolean(default=True),
},
nonnull=True),
nonnull=True),
'startup_attempts':
Integer(default=12),
'startup_enabled':
Boolean(default=True),
'startup_timeout':
Integer(default=5),
},
name='parameters')
log = LogHelper('spire.runtime')
class Runtime(object):
"""A spire runtime."""
guard = Lock()
runtime = None
def __new__(cls, *args, **params):
with Runtime.guard:
Runtime.runtime = super(Runtime, cls).__new__(cls, *args, **params)
return Runtime.runtime
def __init__(self, configuration=None, assembly=None):
self.assembly = assembly or Assembly.current()
from datetime import datetime, timedelta
from scheme import UTC, current_timestamp
from spire.schema import *
from spire.support.logs import LogHelper
from sqlalchemy.sql import bindparam, text
from platoon.models.subscribedtask import SubscribedTask
__all__ = ('Event', )
log = LogHelper('platoon')
schema = Schema('platoon')
class Event(Model):
"""An event."""
class meta:
schema = schema
tablename = 'event'
id = Identifier()
topic = Token(nullable=False)
aspects = Hstore()
status = Enumeration('pending completed',
nullable=False,
default='pending')
occurrence = DateTime(timezone=True)
HSTORE_FILTER = text(':aspects @> subscribed_task.aspects',
bindparams=[bindparam('aspects', type_=aspects.type)])
from mesh.standard import bind
from spire.mesh import MeshDependency, ModelController, support_returning
from spire.schema import *
from spire.support.logs import LogHelper
from flux.bindings import platoon
from flux.models import Message, Request
from flux.operations import *
from flux.resources.request import Request as RequestResource
ScheduledTask = bind(platoon, 'platoon/1.0/scheduledtask')
Event = bind(platoon, 'platoon/1.0/event')
log = LogHelper('flux')
class RequestController(ModelController):
resource = RequestResource
version = (1, 0)
model = Request
mapping = (
'id name status originator assignee creator '
'slot_order claimed completed'
)
schema = SchemaDependency('flux')
docket_entity = MeshDependency('docket.entity')
flux = MeshDependency('flux')
platoon = MeshDependency('platoon')
@support_returning
def create(self, request, response, subject, data):
import time
from scheme import Sequence, Token
from spire.core import Configuration, Dependency, Unit
from spire.mesh import MeshDependency
from spire.runtime import current_runtime
from spire.schema import SchemaDependency
from spire.support.logs import LogHelper
from spire.support.threadpool import ThreadPool
from spire.util import topological_sort
from nucleus.models import *
log = LogHelper('nucleus')
class InvalidDependencyError(Exception):
"""..."""
TIMEOUTS = [(10, 1), (20, 3), (30, 10), (40, 20)]
def next_timeout(attempt):
for threshold, timeout in TIMEOUTS:
if attempt <= threshold:
return timeout
class ServiceRegistry(Unit):
"""The service registry."""
from mesh.standard import Controller, Resource, bind
from mesh.standard.requests import add_schema_field
from spire.core import Unit
from spire.mesh import MeshDependency
from spire.runtime import current_runtime
from spire.schema import *
from spire.schema.construction import FieldConstructor
from spire.support.logs import LogHelper
from spire.util import import_object, safe_table_name
from sqlalchemy import MetaData
from docket import resources
from docket.bindings import platoon
from docket.models import *
log = LogHelper('docket')
PROTOTYPES = (Concept, DocumentType)
class ArchetypeRegistry(Unit):
"""The archetype registry."""
schema = SchemaDependency('docket')
def __init__(self):
self.models = {}
def bootstrap(self):
session = self.schema.session
for prototype in PROTOTYPES:
from scheme import Boolean, Sequence, Text
from werkzeug.exceptions import HTTPException, InternalServerError, NotFound
from werkzeug.wrappers import Request, Response
from spire.core import Configuration, Unit
from spire.local import ContextLocals
from spire.support.logs import LogHelper
log = LogHelper('spire.wsgi')
class Mount(Unit):
configuration = Configuration({
'middleware':
Sequence(Text(nonempty=True), unique=True),
'path':
Text(description='url path', nonempty=True),
'shared_path':
Text(description='path segment shared with mount'),
})
def __init__(self):
try:
self.application
except AttributeError:
self.application = self.dispatch
middleware = self.configuration.get('middleware')
if middleware:
for attr in reversed(middleware):
self.application = getattr(self, attr).wrap(self.application)
import errno
import os
import select
import threading
import time
from scheme import Integer, Text
from spire.core import Configuration, Unit, configured_property
from spire.support.logs import LogHelper
log = LogHelper(__name__)
try:
from os import mkfifo
except ImportError:
class Idler(Unit):
configuration = Configuration({
'timeout': Integer(default=30),
})
timeout = configured_property('timeout')
def idle(self, timeout=None):
time.sleep(timeout or self.timeout)
def interrupt(self):
pass
else:
from copy import deepcopy
from spire.core.assembly import Assembly
from spire.core.configuration import Configuration
from spire.core.dependency import Dependency
from spire.core.registry import Configurable, Registry
from spire.exceptions import *
from spire.support.logs import LogHelper
from spire.util import get_constructor_args, identify_object
__all__ = ('Component', 'ConfigurableUnit', 'Unit')
log = LogHelper('spire.core')
class UnitMeta(type):
def __new__(metatype, name, bases, namespace):
secondary = None
for base in reversed(bases):
metaclass = getattr(base, '__metaclass__', None)
if metaclass and metaclass is not metatype:
if not secondary:
secondary = metaclass
elif metaclass is not secondary:
raise SpireError(
'cannot reconcile more then two metaclass bases')
unit = None
if secondary:
metatype = type('metaclass', (metatype, secondary),
{'__secondary_metaclass__': secondary})
