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-rw-r--r--src/leap/util/leap_log_handler.py81
1 files changed, 65 insertions, 16 deletions
diff --git a/src/leap/util/leap_log_handler.py b/src/leap/util/leap_log_handler.py
index 0e598032..5b8ae789 100644
--- a/src/leap/util/leap_log_handler.py
+++ b/src/leap/util/leap_log_handler.py
@@ -14,7 +14,6 @@
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
-
"""
Custom handler for the logger window.
"""
@@ -23,23 +22,27 @@ import logging
from PySide import QtCore
-class LeapLogHandler(logging.Handler, QtCore.QObject):
+class LogHandler(logging.Handler):
"""
- Custom logging handler. It emits Qt signals so it can be plugged to a gui.
- Also stores an history of logs that can be fetched after connect to a gui.
+ This is the custom handler that implements our desired formatting
+ and also keeps a history of all the logged events.
"""
- # All dicts returned are of the form
- # {'record': LogRecord, 'message': str}
- new_log = QtCore.Signal(dict)
MESSAGE_KEY = 'message'
RECORD_KEY = 'record'
- def __init__(self):
- logging.Handler.__init__(self)
- QtCore.QObject.__init__(self)
+ # TODO This is going to eat lots of memory after some time.
+ # Should be pruned at some moment.
+ _log_history = []
- self._log_history = []
+ def __init__(self, qtsignal):
+ """
+ LogHander initialization.
+ Calls parent method and keeps a reference to the qtsignal
+ that will be used to fire the gui update.
+ """
+ logging.Handler.__init__(self)
+ self._qtsignal = qtsignal
def _set_format(self, logging_level):
"""
@@ -66,6 +69,7 @@ class LeapLogHandler(logging.Handler, QtCore.QObject):
format_attrs = [time, name, level, message]
log_format = ' - '.join(format_attrs)
formatter = logging.Formatter(log_format)
+
self.setFormatter(formatter)
def emit(self, logRecord):
@@ -74,8 +78,6 @@ class LeapLogHandler(logging.Handler, QtCore.QObject):
logging module.
This method reimplements logging.Handler.emit that is fired
in every logged message.
- QObject.emit gets in the way on the PySide signal model but we
- workarouded that issue.
:param logRecord: the record emitted by the logging module.
:type logRecord: logging.LogRecord.
@@ -83,17 +85,64 @@ class LeapLogHandler(logging.Handler, QtCore.QObject):
self._set_format(logRecord.levelname)
log = self.format(logRecord)
log_item = {self.RECORD_KEY: logRecord, self.MESSAGE_KEY: log}
- self._log_history.append(log_item)
+ self._qtsignal(log_item)
+
+
+class HandlerAdapter(object):
+ """
+ New style class that accesses all attributes from the LogHandler.
+
+ Used as a workaround for a problem with multiple inheritance with Pyside
+ that surfaced under OSX with pyside 1.1.0.
+ """
+ MESSAGE_KEY = 'message'
+ RECORD_KEY = 'record'
+
+ def __init__(self, qtsignal):
+ self._handler = LogHandler(qtsignal=qtsignal)
+
+ def setLevel(self, *args, **kwargs):
+ return self._handler.setLevel(*args, **kwargs)
+
+ def handle(self, *args, **kwargs):
+ return self._handler.handle(*args, **kwargs)
+
+ @property
+ def level(self):
+ return self._handler.level
+
+
+class LeapLogHandler(QtCore.QObject, HandlerAdapter):
+ """
+ Custom logging handler. It emits Qt signals so it can be plugged to a gui.
+
+ Its inner handler also stores an history of logs that can be fetched after
+ having been connected to a gui.
+ """
+ # All dicts returned are of the form
+ # {'record': LogRecord, 'message': str}
+ new_log = QtCore.Signal(dict)
+
+ def __init__(self):
+ """
+ LeapLogHandler initialization.
+ Initializes parent classes.
+ """
+ QtCore.QObject.__init__(self)
+ HandlerAdapter.__init__(self, qtsignal=self.qtsignal)
+ def qtsignal(self, log_item):
# WARNING: the new-style connection does NOT work because PySide
# translates the emit method to self.emit, and that collides with
# the emit method for logging.Handler
# self.new_log.emit(log_item)
- QtCore.QObject.emit(self, QtCore.SIGNAL('new_log(PyObject)'), log_item)
+ QtCore.QObject.emit(
+ self,
+ QtCore.SIGNAL('new_log(PyObject)'), log_item)
@property
def log_history(self):
"""
Returns the history of the logged messages.
"""
- return self._log_history
+ return self._handler._log_history