##############################################################################
#
# Copyright (c) 2007 Agendaless Consulting and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the BSD-like license at
# http://www.repoze.org/LICENSE.txt.  A copy of the license should accompany
# this distribution.  THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL
# EXPRESS OR IMPLIED WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND
# FITNESS FOR A PARTICULAR PURPOSE
#
##############################################################################

# This module must not depend on any other non-stdlib module to prevent
# circular import problems.

class ProcessStates:
    STOPPED = 0
    STARTING = 10
    RUNNING = 20
    BACKOFF = 30
    STOPPING = 40
    EXITED = 100
    FATAL = 200
    UNKNOWN = 1000

STOPPED_STATES = (ProcessStates.STOPPED,
                  ProcessStates.EXITED,
                  ProcessStates.FATAL,
                  ProcessStates.UNKNOWN)

RUNNING_STATES = (ProcessStates.RUNNING,
                  ProcessStates.BACKOFF,
                  ProcessStates.STARTING)



def getProcessStateDescription(code):
    for statename in ProcessStates.__dict__:
        if getattr(ProcessStates, statename) == code:
            return statename

class SupervisorStates:
    FATAL = 2
    RUNNING = 1
    RESTARTING = 0
    SHUTDOWN = -1

def getSupervisorStateDescription(code):
    for statename in SupervisorStates.__dict__:
        if getattr(SupervisorStates, statename) == code:
            return statename


class EventListenerStates:
    READY = 10 # the process ready to be sent an event from supervisor
    BUSY = 20 # event listener is processing an event sent to it by supervisor
    ACKNOWLEDGED = 30 # the event listener processed an event
    UNKNOWN = 40 # the event listener is in an unknown state

def getEventListenerStateDescription(code):
    for statename in EventListenerStates.__dict__:
        if getattr(EventListenerStates, statename) == code:
            return statename