--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eggs/py-1.4.0-py2.6.egg/py/_log/log.py Sat Jan 08 11:20:57 2011 +0530
@@ -0,0 +1,186 @@
+"""
+basic logging functionality based on a producer/consumer scheme.
+
+XXX implement this API: (maybe put it into slogger.py?)
+
+ log = Logger(
+ info=py.log.STDOUT,
+ debug=py.log.STDOUT,
+ command=None)
+ log.info("hello", "world")
+ log.command("hello", "world")
+
+ log = Logger(info=Logger(something=...),
+ debug=py.log.STDOUT,
+ command=None)
+"""
+import py, sys
+
+class Message(object):
+ def __init__(self, keywords, args):
+ self.keywords = keywords
+ self.args = args
+
+ def content(self):
+ return " ".join(map(str, self.args))
+
+ def prefix(self):
+ return "[%s] " % (":".join(self.keywords))
+
+ def __str__(self):
+ return self.prefix() + self.content()
+
+
+class Producer(object):
+ """ (deprecated) Log producer API which sends messages to be logged
+ to a 'consumer' object, which then prints them to stdout,
+ stderr, files, etc. Used extensively by PyPy-1.1.
+ """
+
+ Message = Message # to allow later customization
+ keywords2consumer = {}
+
+ def __init__(self, keywords, keywordmapper=None, **kw):
+ if hasattr(keywords, 'split'):
+ keywords = tuple(keywords.split())
+ self._keywords = keywords
+ if keywordmapper is None:
+ keywordmapper = default_keywordmapper
+ self._keywordmapper = keywordmapper
+
+ def __repr__(self):
+ return "<py.log.Producer %s>" % ":".join(self._keywords)
+
+ def __getattr__(self, name):
+ if '_' in name:
+ raise AttributeError(name)
+ producer = self.__class__(self._keywords + (name,))
+ setattr(self, name, producer)
+ return producer
+
+ def __call__(self, *args):
+ """ write a message to the appropriate consumer(s) """
+ func = self._keywordmapper.getconsumer(self._keywords)
+ if func is not None:
+ func(self.Message(self._keywords, args))
+
+class KeywordMapper:
+ def __init__(self):
+ self.keywords2consumer = {}
+
+ def getstate(self):
+ return self.keywords2consumer.copy()
+ def setstate(self, state):
+ self.keywords2consumer.clear()
+ self.keywords2consumer.update(state)
+
+ def getconsumer(self, keywords):
+ """ return a consumer matching the given keywords.
+
+ tries to find the most suitable consumer by walking, starting from
+ the back, the list of keywords, the first consumer matching a
+ keyword is returned (falling back to py.log.default)
+ """
+ for i in range(len(keywords), 0, -1):
+ try:
+ return self.keywords2consumer[keywords[:i]]
+ except KeyError:
+ continue
+ return self.keywords2consumer.get('default', default_consumer)
+
+ def setconsumer(self, keywords, consumer):
+ """ set a consumer for a set of keywords. """
+ # normalize to tuples
+ if isinstance(keywords, str):
+ keywords = tuple(filter(None, keywords.split()))
+ elif hasattr(keywords, '_keywords'):
+ keywords = keywords._keywords
+ elif not isinstance(keywords, tuple):
+ raise TypeError("key %r is not a string or tuple" % (keywords,))
+ if consumer is not None and not py.builtin.callable(consumer):
+ if not hasattr(consumer, 'write'):
+ raise TypeError(
+ "%r should be None, callable or file-like" % (consumer,))
+ consumer = File(consumer)
+ self.keywords2consumer[keywords] = consumer
+
+def default_consumer(msg):
+ """ the default consumer, prints the message to stdout (using 'print') """
+ sys.stderr.write(str(msg)+"\n")
+
+default_keywordmapper = KeywordMapper()
+
+def setconsumer(keywords, consumer):
+ default_keywordmapper.setconsumer(keywords, consumer)
+
+def setstate(state):
+ default_keywordmapper.setstate(state)
+def getstate():
+ return default_keywordmapper.getstate()
+
+#
+# Consumers
+#
+
+class File(object):
+ """ log consumer wrapping a file(-like) object """
+ def __init__(self, f):
+ assert hasattr(f, 'write')
+ #assert isinstance(f, file) or not hasattr(f, 'open')
+ self._file = f
+
+ def __call__(self, msg):
+ """ write a message to the log """
+ self._file.write(str(msg) + "\n")
+ if hasattr(self._file, 'flush'):
+ self._file.flush()
+
+class Path(object):
+ """ log consumer that opens and writes to a Path """
+ def __init__(self, filename, append=False,
+ delayed_create=False, buffering=False):
+ self._append = append
+ self._filename = str(filename)
+ self._buffering = buffering
+ if not delayed_create:
+ self._openfile()
+
+ def _openfile(self):
+ mode = self._append and 'a' or 'w'
+ f = open(self._filename, mode)
+ self._file = f
+
+ def __call__(self, msg):
+ """ write a message to the log """
+ if not hasattr(self, "_file"):
+ self._openfile()
+ self._file.write(str(msg) + "\n")
+ if not self._buffering:
+ self._file.flush()
+
+def STDOUT(msg):
+ """ consumer that writes to sys.stdout """
+ sys.stdout.write(str(msg)+"\n")
+
+def STDERR(msg):
+ """ consumer that writes to sys.stderr """
+ sys.stderr.write(str(msg)+"\n")
+
+class Syslog:
+ """ consumer that writes to the syslog daemon """
+
+ def __init__(self, priority = None):
+ if priority is None:
+ priority = self.LOG_INFO
+ self.priority = priority
+
+ def __call__(self, msg):
+ """ write a message to the log """
+ py.std.syslog.syslog(self.priority, str(msg))
+
+for _prio in "EMERG ALERT CRIT ERR WARNING NOTICE INFO DEBUG".split():
+ _prio = "LOG_" + _prio
+ try:
+ setattr(Syslog, _prio, getattr(py.std.syslog, _prio))
+ except AttributeError:
+ pass