Initial checkin of media test matrix class, which will be used for media perf test later.

third_party/APScheduler/apscheduler/fields.py

+"""
+Fields represent :class:`~apscheduler.triggers.CronTrigger` options which map
+to :class:`~datetime.datetime` fields.
+"""
+from calendar import monthrange
+
+from apscheduler.expressions import *
+
+__all__ = ('BaseField', 'WeekField', 'DayOfMonthField', 'DayOfWeekField')
+
+MIN_VALUES = {'year': 1970, 'month': 1, 'day': 1, 'week': 1,
+              'day_of_week': 0, 'hour': 0, 'minute': 0, 'second': 0}
+MAX_VALUES = {'year': 2 ** 63, 'month': 12, 'day:': 31, 'week': 53,
+              'day_of_week': 6, 'hour': 23, 'minute': 59, 'second': 59}
+
+class BaseField(object):
+    REAL = True
+    COMPILERS = [AllExpression, RangeExpression]
+
+    def __init__(self, name, exprs):
+        self.name = name
+        self.compile_expressions(exprs)
+
+    def get_min(self, dateval):
+        return MIN_VALUES[self.name]
+
+    def get_max(self, dateval):
+        return MAX_VALUES[self.name]
+
+    def get_value(self, dateval):
+        return getattr(dateval, self.name)
+
+    def get_next_value(self, dateval):
+        smallest = None
+        for expr in self.expressions:
+            value = expr.get_next_value(dateval, self)
+            if smallest is None or (value is not None and value < smallest):
+                smallest = value
+
+        return smallest
+
+    def compile_expressions(self, exprs):
+        self.expressions = []
+
+        # Split a comma-separated expression list, if any
+        exprs = str(exprs).strip()
+        if ',' in exprs:
+            for expr in exprs.split(','):
+                self.compile_expression(expr)
+        else:
+            self.compile_expression(exprs)
+
+    def compile_expression(self, expr):
+        for compiler in self.COMPILERS:
+            match = compiler.value_re.match(expr)
+            if match:
+                compiled_expr = compiler(**match.groupdict())
+                self.expressions.append(compiled_expr)
+                return
+
+        raise ValueError('Unrecognized expression "%s" for field "%s"' %
+                         (expr, self.name))
+
+    def __str__(self):
+        expr_strings = (str(e) for e in self.expressions)
+        return ','.join(expr_strings)
+
+    def __repr__(self):
+        return "%s('%s', '%s')" % (self.__class__.__name__, self.name,
+                                   str(self))
+
+
+class WeekField(BaseField):
+    REAL = False
+
+    def get_value(self, dateval):
+        return dateval.isocalendar()[1]
+
+
+class DayOfMonthField(BaseField):
+    COMPILERS = BaseField.COMPILERS + [WeekdayPositionExpression]
+
+    def get_max(self, dateval):
+        return monthrange(dateval.year, dateval.month)[1]
+
+
+class DayOfWeekField(BaseField):
+    REAL = False
+    COMPILERS = BaseField.COMPILERS + [WeekdayRangeExpression]
+
+    def get_value(self, dateval):
+        return dateval.weekday()