def poll(self, conf_tree):
"""Poll for prerequisites of applications."""
# Get the poll configuration.
poll_test, poll_file_test, poll_all_files, poll_any_files = (
self._get_tests(conf_tree))
poll_delays = []
if poll_test or poll_all_files or poll_any_files:
poll_delays = self._get_delays(conf_tree)
# Launch the polling.
t_init = get_timepoint_for_now()
poll_test, poll_any_files, poll_all_files = (self._run_poll(
poll_test,
poll_all_files,
poll_any_files,
poll_delays,
poll_file_test=poll_file_test))
t_finish = get_timepoint_for_now()
# Handle any failures.
failed_items = []
if poll_test:
failed_items.append("test")
if poll_any_files:
failed_items.append("any-files")
if poll_all_files:
failed_items.append("all-files:" +
self.popen.list_to_shell_str(poll_all_files))
if failed_items:
now = get_timepoint_for_now()
raise PollTimeoutError(now, t_finish - t_init, failed_items)
def poll(self, conf_tree):
"""Poll for prerequisites of applications."""
# Get the poll configuration.
poll_test, poll_file_test, poll_all_files, poll_any_files = (
self._get_tests(conf_tree))
poll_delays = []
if poll_test or poll_all_files or poll_any_files:
poll_delays = self._get_delays(conf_tree)
# Launch the polling.
t_init = get_timepoint_for_now()
poll_test, poll_any_files, poll_all_files = (
self._run_poll(poll_test, poll_all_files,
poll_any_files, poll_delays,
poll_file_test=poll_file_test)
)
t_finish = get_timepoint_for_now()
# Handle any failures.
failed_items = []
if poll_test:
failed_items.append("test")
if poll_any_files:
failed_items.append("any-files")
if poll_all_files:
failed_items.append("all-files:" +
self.popen.list_to_shell_str(poll_all_files))
if failed_items:
now = get_timepoint_for_now()
raise PollTimeoutError(now, t_finish - t_init, failed_items)
def date_parse(self, time_point_str=None):
"""Parse time_point_str.
Return (t, format) where t is a isodatetime.data.TimePoint object and
format is the format that matches time_point_str.
time_point_str -- The time point string to parse.
Otherwise, use ref time.
"""
if time_point_str is None or time_point_str == self.STR_REF:
time_point_str = self.ref_point_str
if time_point_str is None or time_point_str == self.STR_NOW:
time_point = get_timepoint_for_now()
time_point.set_time_zone_to_local()
if self.utc_mode or time_point.get_time_zone_utc(): # is in UTC
parse_format = self.CURRENT_TIME_DUMP_FORMAT_Z
else:
parse_format = self.CURRENT_TIME_DUMP_FORMAT
elif self.custom_parse_format is not None:
parse_format = self.custom_parse_format
time_point = self.strptime(time_point_str, parse_format)
else:
parse_formats = list(self.parse_formats)
time_point = None
while parse_formats:
parse_format, should_use_datetime = parse_formats.pop(0)
try:
if should_use_datetime:
time_point = self.get_datetime_strptime(
time_point_str,
parse_format)
else:
time_point = self.time_point_parser.strptime(
time_point_str,
parse_format)
break
except ValueError:
pass
if time_point is None:
time_point = self.time_point_parser.parse(
time_point_str,
dump_as_parsed=True)
parse_format = time_point.dump_format
if self.utc_mode:
time_point.set_time_zone_to_utc()
return time_point, parse_format
def date_parse(self, time_point_str=None):
"""Parse time_point_str.
Return (t, format) where t is a isodatetime.data.TimePoint object and
format is the format that matches time_point_str.
time_point_str -- The time point string to parse.
Otherwise, use ref time.
"""
if time_point_str is None or time_point_str == self.STR_REF:
time_point_str = self.ref_point_str
if time_point_str is None or time_point_str == self.STR_NOW:
time_point = get_timepoint_for_now()
time_point.set_time_zone_to_local()
if self.utc_mode or time_point.get_time_zone_utc(): # is in UTC
parse_format = self.CURRENT_TIME_DUMP_FORMAT_Z
else:
parse_format = self.CURRENT_TIME_DUMP_FORMAT
elif self.custom_parse_format is not None:
parse_format = self.custom_parse_format
time_point = self.strptime(time_point_str, parse_format)
else:
parse_formats = list(self.parse_formats)
time_point = None
while parse_formats:
parse_format, should_use_datetime = parse_formats.pop(0)
try:
if should_use_datetime:
time_point = self.get_datetime_strptime(
time_point_str,
parse_format)
else:
time_point = self.time_point_parser.strptime(
time_point_str,
parse_format)
break
except ValueError:
pass
if time_point is None:
time_point = self.time_point_parser.parse(
time_point_str,
dump_as_parsed=True)
parse_format = time_point.dump_format
if self.utc_mode:
time_point.set_time_zone_to_utc()
return time_point, parse_format
def _poll(self, conf_tree):
"""Poll for prerequisites of applications."""
# Poll configuration
poll_test = conf_tree.node.get_value(["poll", "test"])
poll_all_files_value = conf_tree.node.get_value(["poll", "all-files"])
poll_all_files = []
if poll_all_files_value:
try:
poll_all_files = shlex.split(
env_var_process(poll_all_files_value))
except UnboundEnvironmentVariableError as exc:
raise ConfigValueError(["poll", "all-files"],
poll_all_files_value, exc)
poll_any_files_value = conf_tree.node.get_value(["poll", "any-files"])
poll_any_files = []
if poll_any_files_value:
try:
poll_any_files = shlex.split(
env_var_process(poll_any_files_value))
except UnboundEnvironmentVariableError as exc:
raise ConfigValueError(["poll", "any-files"],
poll_any_files_value, exc)
poll_file_test = None
if poll_all_files or poll_any_files:
poll_file_test = conf_tree.node.get_value(["poll", "file-test"])
if poll_file_test and "{}" not in poll_file_test:
raise ConfigValueError(["poll", "file-test"], poll_file_test,
ConfigValueError.SYNTAX)
poll_delays = []
if poll_test or poll_all_files or poll_any_files:
# Parse something like this: delays=10,4*PT30S,PT2M30S,2*PT1H
# R*DURATION: repeat the value R times
conf_keys = ["poll", "delays"]
poll_delays_value = conf_tree.node.get_value(
conf_keys, default="").strip()
if poll_delays_value:
is_legacy0 = None
for item in poll_delays_value.split(","):
value = item.strip()
repeat = 1
if "*" in value:
repeat, value = value.split("*", 1)
try:
repeat = int(repeat)
except ValueError as exc:
raise ConfigValueError(conf_keys,
poll_delays_value,
ConfigValueError.SYNTAX)
try:
value = self.duration_parser.parse(value).get_seconds()
is_legacy = False
except ISO8601SyntaxError:
# Legacy mode: nnnU
# nnn is a float, U is the unit
# No unit or s: seconds
# m: minutes
# h: hours
unit = None
if value[-1].lower() in self.OLD_DURATION_UNITS:
unit = self.OLD_DURATION_UNITS[value[-1].lower()]
value = value[:-1]
try:
value = float(value)
except ValueError as exc:
raise ConfigValueError(conf_keys,
poll_delays_value,
ConfigValueError.SYNTAX)
if unit:
value *= unit
is_legacy = True
if is_legacy0 is None:
is_legacy0 = is_legacy
elif is_legacy0 != is_legacy:
raise ConfigValueError(
conf_keys,
poll_delays_value,
ConfigValueError.DURATION_LEGACY_MIX)
poll_delays += [value] * repeat
else:
poll_delays = [0] # poll once without a delay
# Poll
t_init = get_timepoint_for_now()
while poll_delays and (poll_test or poll_any_files or poll_all_files):
poll_delay = poll_delays.pop(0)
if poll_delay:
sleep(poll_delay)
if poll_test:
ret_code = self.popen.run(
poll_test, shell=True,
stdout=sys.stdout, stderr=sys.stderr)[0]
self.handle_event(PollEvent(time(), poll_test, ret_code == 0))
if ret_code == 0:
poll_test = None
any_files = list(poll_any_files)
for file_ in any_files:
if self._poll_file(file_, poll_file_test):
self.handle_event(PollEvent(time(), "any-files", True))
poll_any_files = []
break
all_files = list(poll_all_files)
for file_ in all_files:
if self._poll_file(file_, poll_file_test):
poll_all_files.remove(file_)
if all_files and not poll_all_files:
self.handle_event(PollEvent(time(), "all-files", True))
failed_items = []
if poll_test:
failed_items.append("test")
if poll_any_files:
failed_items.append("any-files")
if poll_all_files:
failed_items.append("all-files:" +
self.popen.list_to_shell_str(poll_all_files))
if failed_items:
now = get_timepoint_for_now()
raise PollTimeoutError(now, now - t_init, failed_items)
def _poll(self, conf_tree):
"""Poll for prerequisites of applications."""
# Poll configuration
poll_test = conf_tree.node.get_value(["poll", "test"])
poll_all_files_value = conf_tree.node.get_value(["poll", "all-files"])
poll_all_files = []
if poll_all_files_value:
try:
poll_all_files = shlex.split(
env_var_process(poll_all_files_value))
except UnboundEnvironmentVariableError as exc:
raise ConfigValueError(["poll", "all-files"],
poll_all_files_value, exc)
poll_any_files_value = conf_tree.node.get_value(["poll", "any-files"])
poll_any_files = []
if poll_any_files_value:
try:
poll_any_files = shlex.split(
env_var_process(poll_any_files_value))
except UnboundEnvironmentVariableError as exc:
raise ConfigValueError(["poll", "any-files"],
poll_any_files_value, exc)
poll_file_test = None
if poll_all_files or poll_any_files:
poll_file_test = conf_tree.node.get_value(["poll", "file-test"])
if poll_file_test and "{}" not in poll_file_test:
raise ConfigValueError(["poll", "file-test"], poll_file_test,
ConfigValueError.SYNTAX)
poll_delays = []
if poll_test or poll_all_files or poll_any_files:
# Parse something like this: delays=10,4*PT30S,PT2M30S,2*PT1H
# R*DURATION: repeat the value R times
conf_keys = ["poll", "delays"]
poll_delays_value = conf_tree.node.get_value(conf_keys,
default="").strip()
if poll_delays_value:
is_legacy0 = None
for item in poll_delays_value.split(","):
value = item.strip()
repeat = 1
if "*" in value:
repeat, value = value.split("*", 1)
try:
repeat = int(repeat)
except ValueError as exc:
raise ConfigValueError(conf_keys,
poll_delays_value,
ConfigValueError.SYNTAX)
try:
value = self.duration_parser.parse(value).get_seconds()
is_legacy = False
except ISO8601SyntaxError:
# Legacy mode: nnnU
# nnn is a float, U is the unit
# No unit or s: seconds
# m: minutes
# h: hours
unit = None
if value[-1].lower() in self.OLD_DURATION_UNITS:
unit = self.OLD_DURATION_UNITS[value[-1].lower()]
value = value[:-1]
try:
value = float(value)
except ValueError as exc:
raise ConfigValueError(conf_keys,
poll_delays_value,
ConfigValueError.SYNTAX)
if unit:
value *= unit
is_legacy = True
if is_legacy0 is None:
is_legacy0 = is_legacy
elif is_legacy0 != is_legacy:
raise ConfigValueError(
conf_keys, poll_delays_value,
ConfigValueError.DURATION_LEGACY_MIX)
poll_delays += [value] * repeat
else:
poll_delays = [0] # poll once without a delay
# Poll
t_init = get_timepoint_for_now()
while poll_delays and (poll_test or poll_any_files or poll_all_files):
poll_delay = poll_delays.pop(0)
if poll_delay:
sleep(poll_delay)
if poll_test:
ret_code = self.popen.run(poll_test,
shell=True,
stdout=sys.stdout,
stderr=sys.stderr)[0]
self.handle_event(PollEvent(time(), poll_test, ret_code == 0))
if ret_code == 0:
poll_test = None
any_files = list(poll_any_files)
for file_ in any_files:
if self._poll_file(file_, poll_file_test):
self.handle_event(PollEvent(time(), "any-files", True))
poll_any_files = []
break
all_files = list(poll_all_files)
for file_ in all_files:
if self._poll_file(file_, poll_file_test):
poll_all_files.remove(file_)
if all_files and not poll_all_files:
self.handle_event(PollEvent(time(), "all-files", True))
failed_items = []
if poll_test:
failed_items.append("test")
if poll_any_files:
failed_items.append("any-files")
if poll_all_files:
failed_items.append("all-files:" +
self.popen.list_to_shell_str(poll_all_files))
if failed_items:
now = get_timepoint_for_now()
raise PollTimeoutError(now, now - t_init, failed_items)