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159 lines
5.8 KiB
159 lines
5.8 KiB
""" Manage the startup process. """
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import time
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import datetime
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import threading
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import logging
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import traceback
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from collections import defaultdict
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from flask import jsonify
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from asl_rulebook2.webapp import app
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from asl_rulebook2.webapp.content import load_content_sets
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from asl_rulebook2.webapp.search import init_search
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from asl_rulebook2.webapp.rule_info import init_qa, init_errata, init_annotations
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from asl_rulebook2.webapp.asop import init_asop
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from asl_rulebook2.webapp.utils import parse_int
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_capabilities = None
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fixup_content_lock = threading.Lock()
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_fixup_content_tasks = None
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_logger = logging.getLogger( "startup" )
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_startup_msgs = None
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# ---------------------------------------------------------------------
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def init_webapp():
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"""Initialize the webapp.
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IMPORTANT: This is called on the first Flask request, but can also be called multiple times
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after that by the test suite, to reset the webapp before each test.
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"""
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# initialize
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global _startup_msgs, _capabilities, _fixup_content_tasks
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_startup_msgs = StartupMsgs()
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_capabilities = {}
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_fixup_content_tasks = []
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# initialize the webapp
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content_sets = load_content_sets( _startup_msgs, _logger )
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if content_sets:
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_capabilities[ "content-sets" ] = True
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qa = init_qa( _startup_msgs, _logger )
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if qa:
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_capabilities[ "qa" ] = True
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errata = init_errata( _startup_msgs, _logger )
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if errata:
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_capabilities[ "errata" ] = True
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user_anno = init_annotations( _startup_msgs, _logger )
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if user_anno:
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_capabilities[ "user-anno" ] = True
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asop, asop_content = init_asop( _startup_msgs, _logger )
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if asop:
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_capabilities[ "asop" ] = True
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init_search(
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content_sets, qa, errata, user_anno, asop, asop_content,
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_startup_msgs, _logger
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)
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# everything has been initialized - now we can go back and fixup content
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# NOTE: This is quite a slow process (~1 minute for a full data load), which is why we don't do it inline,
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# during the normal startup process. So, we start up using the original content, and if the user does
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# a search, that's what they will see, but we fix it up in the background, and the new content will
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# eventually start to be returned as search results. We could do this process once, and save the results
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# in a file, then reload everything at startup, which will obviously be much faster, but we then have to
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# figure out when that file needs to be rebuolt :-/
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if app.config.get( "BLOCKING_FIXUP_CONTENT" ):
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# NOTE: It's useful to do this synchronously when running the test suite, since if the tests
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# need the linkified ruleid's, they can't start until the fixup has finished (and if they don't
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# it won't really matter, since there will be so little data, this process will be fast).
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_do_fixup_content()
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else:
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threading.Thread( target = _do_fixup_content ).start()
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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def add_fixup_content_task( ctype, func ):
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"""Register a function to fixup content after startup has finished."""
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if app.config.get( "DISABLE_FIXUP_CONTENT" ):
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return
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_fixup_content_tasks.append( ( ctype, func ) )
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def _do_fixup_content():
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"""Run each task to fixup content."""
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if not _fixup_content_tasks:
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return
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start_time = time.time()
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for task_no, (ctype, func) in enumerate( _fixup_content_tasks ):
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_logger.debug( "Fixing up %s (%d/%d)...", ctype, 1+task_no, len(_fixup_content_tasks) )
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start_time2 = time.time()
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try:
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msg = func()
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except Exception as ex: #pylint: disable=broad-except
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_logger.error( "Couldn't fixup %s: %s\n%s", ctype, ex, traceback.format_exc() )
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continue
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elapsed_time = datetime.timedelta( seconds = int( time.time() - start_time2 ) )
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_logger.debug( "- Finished fixing up %s (%s): %s", ctype, elapsed_time, msg )
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elapsed_time = datetime.timedelta( seconds = int( time.time() - start_time ) )
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_logger.info( "All fixup tasks completed (%s).", elapsed_time )
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# ---------------------------------------------------------------------
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@app.route( "/app-config" )
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def get_app_config():
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"""Return the app config."""
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# initialize
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_logger.debug( "Sending app config:" )
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result = {}
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# send the available capabilities
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_logger.debug( "- capabilities: %s", _capabilities )
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result["capabilities"] = _capabilities
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# send any user-defined debug settings
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for key in app.config:
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if not key.startswith( "WEBAPP_" ):
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continue
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val = app.config.get( key )
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if val is not None:
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_logger.debug( "- %s = %s", key, val )
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result[ key ] = parse_int( val, val )
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return jsonify( result )
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# ---------------------------------------------------------------------
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@app.route( "/startup-msgs" )
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def get_startup_msgs():
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"""Return any messages issued during startup."""
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return jsonify( _startup_msgs.msgs )
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# ---------------------------------------------------------------------
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class StartupMsgs:
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"""Store messages issued during startup."""
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def __init__( self ):
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self.msgs = defaultdict( list )
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#pylint: disable=missing-function-docstring
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def info( self, msg, msg_info=None ):
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return self._add_msg( "info", msg, msg_info )
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def warning( self, msg, msg_info=None ):
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return self._add_msg( "warning", msg, msg_info )
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def error( self, msg, msg_info=None ):
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return self._add_msg( "error", msg, msg_info )
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def _add_msg( self, msg_type, msg, msg_info ):
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"""Add a startup message."""
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if msg_info:
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self.msgs[ msg_type ].append( ( msg, msg_info ) )
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getattr( _logger, msg_type )( "%s\n %s", msg, msg_info )
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else:
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self.msgs[ msg_type ].append( msg )
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getattr( _logger, msg_type )( "%s", msg )
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