def _setup_model(self):
self._session_buttons = {}
self._selected_session_name = None
self._channels_list_model = QLttngcChannelsListModel(self._active_icon,
self._inactive_icon)
self._events_list_model = QLttngcEventsListModel(self._active_icon,
self._inactive_icon)
self._pseudo_channels = {}
self._pseudo_channel_jul = self._create_pseudo_channel('java.util.logging pseudo-channel',
model.Domain.JUL)
self._pseudo_channel_log4j = self._create_pseudo_channel('log4j 1.2 pseudo-channel',
model.Domain.LOG4J)
self._pseudo_channels[model.Domain.JUL] = self._pseudo_channel_jul
self._pseudo_channels[model.Domain.LOG4J] = self._pseudo_channel_log4j
if features.Feature.PYTHON_DOMAIN in self._features:
self._pseudo_channel_python = self._create_pseudo_channel('Python pseudo-channel',
model.Domain.PYTHON)
self._pseudo_channels[model.Domain.PYTHON] = self._pseudo_channel_python
self._fully_disabled = False
class QLttngcMainWindow(Qt.QMainWindow, utils.QtUiLoad):
_UI_NAME = 'main'
selected_session_changed = QtCore.pyqtSignal()
session_button_middle_clicked = QtCore.pyqtSignal(object)
def __init__(self, features):
super().__init__()
self._features = features
self._load_icons()
self._setup_model()
self._setup_ui()
self._setup_list_models()
self._setup_dialogs()
self._setup_actions()
self._setup_signals()
self.clear_lists()
def center_screen(self):
desktop_widget = Qt.QDesktopWidget()
primary_screen = desktop_widget.primaryScreen()
screen_w = desktop_widget.screen(primary_screen).width()
screen_h = desktop_widget.screen(primary_screen).height()
self.setGeometry(screen_w / 2 - self.width() / 2,
screen_h / 2 - self.height() / 2,
self.width(), self.height())
@staticmethod
def _create_pseudo_channel(name, domain):
channel = model.Channel(name, domain, True, None, [])
channel.is_pseudo = True
return channel
def _setup_model(self):
self._session_buttons = {}
self._selected_session_name = None
self._channels_list_model = QLttngcChannelsListModel(self._active_icon,
self._inactive_icon)
self._events_list_model = QLttngcEventsListModel(self._active_icon,
self._inactive_icon)
self._pseudo_channels = {}
self._pseudo_channel_jul = self._create_pseudo_channel('java.util.logging pseudo-channel',
model.Domain.JUL)
self._pseudo_channel_log4j = self._create_pseudo_channel('log4j 1.2 pseudo-channel',
model.Domain.LOG4J)
self._pseudo_channels[model.Domain.JUL] = self._pseudo_channel_jul
self._pseudo_channels[model.Domain.LOG4J] = self._pseudo_channel_log4j
if features.Feature.PYTHON_DOMAIN in self._features:
self._pseudo_channel_python = self._create_pseudo_channel('Python pseudo-channel',
model.Domain.PYTHON)
self._pseudo_channels[model.Domain.PYTHON] = self._pseudo_channel_python
self._fully_disabled = False
def _load_icons(self):
self._play_icon = utils.get_qicon('play')
self._stop_icon = utils.get_qicon('stop')
self._active_icon = utils.get_qicon('active')
self._inactive_icon = utils.get_qicon('inactive')
def _setup_icons(self):
actions_icons = [
(self._action_load, 'load'),
(self._action_save, 'save'),
(self._action_quit, 'quit'),
(self._action_add_session, 'add'),
(self._action_remove_session, 'remove'),
(self._action_remove_all_sessions, 'explosion'),
(self._action_toggle_tracing, 'play'),
(self._action_add_channel, 'add'),
(self._action_attach_context, 'attach'),
(self._action_enable_channels, 'enable'),
(self._action_disable_channels, 'disable'),
(self._action_add_events, 'add'),
(self._action_enable_events, 'enable'),
(self._action_disable_events, 'disable'),
(self._action_show_sessions, 'sessions'),
(self._action_show_channels, 'channels'),
(self._action_show_events, 'events'),
(self._action_show_object_infos, 'infos'),
(self._action_show_last_operation, 'terminal'),
(self._action_show_filters, 'filter'),
(self._action_auto_refresh, 'auto-refresh'),
(self._action_refresh, 'refresh'),
(self._action_about, 'about'),
(self._action_goto_lttng_org, 'lttng'),
]
for pair in actions_icons:
icon = utils.get_qicon(pair[1])
pair[0].setIcon(icon)
buttons_icons = [
(self._add_session_btn, 'add'),
(self._add_channel_btn, 'add'),
(self._attach_context_btn, 'attach'),
(self._enable_channels_btn, 'enable'),
(self._disable_channels_btn, 'disable'),
(self._add_events_btn, 'add'),
(self._enable_events_btn, 'enable'),
(self._disable_events_btn, 'disable'),
]
for pair in buttons_icons:
icon = utils.get_qicon(pair[1])
pair[0].setIcon(icon)
pair[0].setIconSize(Qt.QSize(16, 16))
self.setWindowIcon(utils.get_qicon('lttng'))
def _setup_dialogs(self):
self._about_dialog = QLttngcAboutDialog()
def _setup_filter_btns(self):
# channels
domains = [
model.Domain.KERNEL,
model.Domain.USER,
model.Domain.JUL,
model.Domain.LOG4J,
]
if features.Feature.PYTHON_DOMAIN in self._features:
domains.append(model.Domain.PYTHON)
self._channel_filter_btns_layout = QLttngcFilterButtonsLayout(domains, 'channels')
self._channel_filter_btns_layout.button_clicked.connect(self._channel_filter_btn_clicked)
self._channels_box.layout().insertLayout(0, self._channel_filter_btns_layout)
self._channel_filter_btns_layout.set_buttons_visible(False)
# events
self._event_filter_btns_layout = QLttngcFilterButtonsLayout(domains, 'events')
self._event_filter_btns_layout.button_clicked.connect(self._event_filter_btn_clicked)
self._events_box.layout().insertLayout(0, self._event_filter_btns_layout)
self._event_filter_btns_layout.set_buttons_visible(False)
def _setup_ui(self):
self._load_ui()
self._setup_icons()
self._setup_filter_btns()
self._base_title = 'lttngc'
self._object_infos_box.hide()
self._last_operation_dock.hide()
def _create_proxy_model(self, src_model, list_view):
proxy_model = QLttngcDomainSortFilterProxyModel()
proxy_model.setSourceModel(src_model)
proxy_model.enable_domain(model.Domain.KERNEL, True)
proxy_model.enable_domain(model.Domain.USER, True)
proxy_model.enable_domain(model.Domain.JUL, True)
proxy_model.enable_domain(model.Domain.LOG4J, True)
if features.Feature.PYTHON_DOMAIN in self._features:
proxy_model.enable_domain(model.Domain.PYTHON, True)
list_view.setModel(proxy_model)
return proxy_model
def _setup_list_models(self):
# channels
proxy_model = self._create_proxy_model(self._channels_list_model,
self._channels_list)
self._channels_proxy_model = proxy_model
# events
proxy_model = self._create_proxy_model(self._events_list_model,
self._events_list)
self._events_proxy_model = proxy_model
def _goto_lttng_org(self):
utils.goto_url('http://lttng.org/')
def _show_about_dialog(self):
pos = self.pos()
pos.setX(pos.x() + 40)
pos.setY(pos.y() + 40)
self._about_dialog.show_move(pos)
def _setup_actions(self):
self._action_goto_lttng_org.triggered.connect(self._goto_lttng_org)
self._action_about.triggered.connect(self._show_about_dialog)
def _channel_filter_btn_clicked(self, btn, checked):
domain = btn.domain
self._channels_proxy_model.enable_domain(domain, checked)
self._update_view_from_model()
def _event_filter_btn_clicked(self, btn, checked):
domain = btn.domain
self._events_proxy_model.enable_domain(domain, checked)
self._update_view_from_model()
def _setup_signals(self):
# selection changed
channels_selection_model = self._channels_list.selectionModel()
channels_selection_model.selectionChanged.connect(self._channels_selection_changed)
events_selection_model = self._events_list.selectionModel()
events_selection_model.selectionChanged.connect(self._events_selection_changed)
# click (lists)
self._channels_list.clicked.connect(self._channels_list_clicked)
self._events_list.clicked.connect(self._events_list_clicked)
# show filter buttons
self._action_show_filters.triggered.connect(self._show_channel_filters_triggered)
self._action_show_filters.triggered.connect(self._show_event_filters_triggered)
# support closing a dock from the dock itself
self._last_operation_dock.visibilityChanged.connect(self._last_op_visibility_changed)
def _last_op_visibility_changed(self, is_visible):
self._action_show_last_operation.setChecked(is_visible)
def _show_channel_filters_triggered(self, checked):
self._channel_filter_btns_layout.set_buttons_visible(checked)
def _show_event_filters_triggered(self, checked):
self._event_filter_btns_layout.set_buttons_visible(checked)
def get_channel_at_row(self, row):
# get channel object
index = self._channels_proxy_model.index(row, 0)
src_index = self._channels_proxy_model.mapToSource(index)
item = self._channels_list_model.get_item_at_row(src_index.row())
return item.obj
def get_event_at_row(self, row):
# get event object
index = self._events_proxy_model.index(row, 0)
src_index = self._events_proxy_model.mapToSource(index)
item = self._events_list_model.get_item_at_row(src_index.row())
return item.obj
def _event_clicked(self, index):
# get event object
event = self.get_event_at_row(index.row())
self._set_event_infos(event)
def _set_channel_infos(self, channel):
# update object infos
obj_name = 'Channel'
if channel.is_pseudo:
obj_name = 'Pseudo-channel'
domain_name = model.DOMAIN_NAMES[channel.domain]
text = '<b>{}</b>: <i>{}</i> ({} domain)'.format(obj_name,
channel.name,
domain_name)
if channel.is_pseudo:
self._object_infos_lbl.setText(text)
return
text += '<br>'
attr = channel.attributes
mode = model.CHANNEL_MODE_NAMES[attr.mode]
output_type = model.CHANNEL_OUTPUT_TYPE_NAMES[attr.output_type]
buffer_scheme = model.CHANNEL_BUFFER_SCHEME_NAMES[attr.buffer_scheme]
fmt = '<b>Mode</b>: {} <b>Output type</b>: {} <b>Buffering</b>: {}<br>'
text += fmt.format(mode, output_type, buffer_scheme)
subbuf_size = utils.bytes_to_human(attr.subbuf_size)
if attr.tracefile_size <= 0:
tracefile = 'unlimited size'
else:
tracefile_size = utils.bytes_to_human(attr.tracefile_size)
tracefile = '{} x {}'.format(attr.tracefile_count, tracefile_size)
fmt = '<b>Sub-buffers</b>: {} x {} <b>Trace files</b>: {}<br>'
text += fmt.format(attr.subbuf_count, subbuf_size, tracefile)
switch_timer = attr.switch_timer_interval
if switch_timer == 0:
switch = 'stopped'
else:
switch = '{:.6f} s'.format(switch_timer)
read_timer = attr.read_timer_interval
if read_timer == 0:
read = 'stopped'
else:
read = '{:.6f} s'.format(read_timer)
fmt = '<b>Switch timer</b>: {} <b>Read timer</b>: {}'
text += fmt.format(switch, read)
self._object_infos_lbl.setText(text)
def _set_event_infos(self, event):
def bool_to_yes_no(b):
return 'yes' if b else 'no'
# update object infos
channel_name = event.channel.name
domain_name = model.DOMAIN_NAMES[event.channel.domain]
fmt = '<b>Event</b>: <i>{}</i> ({}, {} domain, channel <i>{}</i>)<br>'
event_type_name = model.EVENT_TYPE_NAMES[event.source.type]
text = fmt.format(event.source.name, event_type_name, domain_name,
event.channel.name)
ll = 'none'
if event.log_level is not None and event.log_level_function != model.LogLevelFunction.ANY:
if event.log_level_function == model.LogLevelFunction.LT_EQ:
func = 'lesser than or equal to'
else:
func = 'equal to'
ll = '{} {}'.format(func, event.log_level)
text += '<b>Log level</b>: {}'.format(ll)
has_filter = bool_to_yes_no(event.has_filter)
text += ' <b>Has filter?</b>: {}'.format(has_filter)
if event.has_exclusions is not None:
has_exclusions = bool_to_yes_no(event.has_exclusions)
text += ' <b>Has exclusions?</b>: {}'.format(has_exclusions)
self._object_infos_lbl.setText(text)
def _session_button_clicked(self, checked):
session_button = self.sender()
session_summary = session_button.session_summary
if self._selected_session_name == session_summary.name and not checked:
# cancel toggling
session_button.setChecked(True)
return
# uncheck current one
self.set_selected_session_name(session_summary.name)
# notify
self.selected_session_changed.emit()
def _update_toggle_tracing_btn(self):
selected_session_btn = self._get_selected_session_button()
if not selected_session_btn:
self._action_toggle_tracing.setEnabled(False)
return
if selected_session_btn.session_summary.is_active:
self._action_toggle_tracing.setText('&Stop tracing')
self._action_toggle_tracing.setToolTip('Stop tracing')
self._action_toggle_tracing.setStatusTip('Stop tracing')
self._action_toggle_tracing.setIcon(self._stop_icon)
else:
self._action_toggle_tracing.setText('&Start tracing')
self._action_toggle_tracing.setToolTip('Start tracing')
self._action_toggle_tracing.setStatusTip('Start tracing')
self._action_toggle_tracing.setIcon(self._play_icon)
self._action_toggle_tracing.setEnabled(True)
def _update_selected_session_button(self):
for session_button in self._session_buttons.values():
session_summary = session_button.session_summary
if session_summary.name == self._selected_session_name:
if not session_button.isChecked():
session_button.setChecked(True)
else:
if session_button.isChecked():
session_button.setChecked(False)
def _update_remove_session_btn(self):
selected_session_btn = self._get_selected_session_button()
is_enabled = bool(selected_session_btn)
self._action_remove_session.setEnabled(is_enabled)
self._action_remove_all_sessions.setEnabled(is_enabled)
def _sort_lists(self):
self._channels_proxy_model.sort(0)
self._events_proxy_model.sort(0)
def _channels_list_clicked(self, index):
channel = self.get_channel_at_row(index.row())
self._set_channel_infos(channel)
def _events_list_clicked(self, index):
event = self.get_event_at_row(index.row())
self._set_event_infos(event)
def _events_selection_changed(self, selected, deselected):
events = self.get_selected_events()
if len(events) == 1:
self._set_event_infos(events[0])
self._update_view_from_model()
def _channels_selection_changed(self, selected, deselected):
channels = self.get_selected_channels()
if len(channels) == 1:
self._set_channel_infos(channels[0])
self._clear_events_list()
self._update_events_list_from_selected_channels()
self._update_view_from_model()
def _update_widgets_enabled(self):
# one session?
one_session = bool(self._session_buttons)
one_session = one_session and not self._fully_disabled
# one channel selected?
channels = self.get_selected_channels()
one_channel = bool(channels)
one_channel = one_channel and not self._fully_disabled
# selected channels are all pseudo-channels?
all_pseudo = True
for channel in channels:
all_pseudo = all_pseudo and channel.is_pseudo
# selected channels have the same domain?
same_domain = False
selected_domains = set()
for channel in channels:
selected_domains.add(channel.domain)
if len(selected_domains) == 1:
same_domain = True
same_domain = same_domain and not self._fully_disabled
# one event selected?
one_event = bool(self.get_selected_events())
one_event = one_event and not self._fully_disabled
# enable/disable buttons and actions
if not one_session:
self._clear_lists_no_update()
self._add_session_btn.setEnabled(True)
self._action_load.setEnabled(not self._fully_disabled)
self._action_add_session.setEnabled(True)
self._action_remove_session.setEnabled(one_session)
self._action_remove_all_sessions.setEnabled(one_session)
self._add_channel_btn.setEnabled(one_session)
self._action_add_channel.setEnabled(one_session)
self._action_save.setEnabled(one_session)
self._menu_session.setEnabled(not self._fully_disabled)
self._menu_channel.setEnabled(one_session)
self._channels_box.setEnabled(one_session)
en_dis_channels = one_channel and not all_pseudo
self._enable_channels_btn.setEnabled(en_dis_channels)
self._disable_channels_btn.setEnabled(en_dis_channels)
self._attach_context_btn.setEnabled(en_dis_channels)
self._add_events_btn.setEnabled(same_domain)
self._action_enable_channels.setEnabled(en_dis_channels)
self._action_disable_channels.setEnabled(en_dis_channels)
self._action_attach_context.setEnabled(en_dis_channels)
self._action_add_events.setEnabled(same_domain)
self._menu_event.setEnabled(one_channel)
self._events_box.setEnabled(one_channel)
self._enable_events_btn.setEnabled(one_event)
self._disable_events_btn.setEnabled(one_event)
self._action_enable_events.setEnabled(one_event)
self._action_disable_events.setEnabled(one_event)
def _update_title(self):
sel_session_summary = self.get_selected_session_summary()
if sel_session_summary is None:
self.setWindowTitle(self._base_title)
return
title = '{} [{}]'.format(self._base_title, sel_session_summary.name)
self.setWindowTitle(title)
def _update_view_from_model(self):
self._update_selected_session_button()
self._update_toggle_tracing_btn()
self._update_remove_session_btn()
self._sort_lists()
self._update_widgets_enabled()
self._update_title()
def _add_session_button(self, session_summary):
btn = QLttngcSessionButton(session_summary, self._active_icon,
self._inactive_icon)
insert_pos = self._session_layout.count() - 2
self._session_layout.insertWidget(insert_pos, btn)
self._session_buttons[session_summary.name] = btn
btn.clicked.connect(self._session_button_clicked)
btn.middle_clicked.connect(self.session_button_middle_clicked)
return btn
def _get_session_button(self, sname):
if sname in self._session_buttons:
return self._session_buttons[sname]
def _remove_session_button(self, sname):
self._session_buttons[sname].setParent(None)
del self._session_buttons[sname]
def update_session_buttons_from_summaries(self, session_summaries):
known_snames = []
# update/add
for summary in session_summaries.values():
sname = summary.name
# does not exist?
btn = self._get_session_button(sname)
if btn is None:
# create it
btn = self._add_session_button(summary)
# update session summary
btn.session_summary = summary
# mark it as known
known_snames.append(sname)
# now remove unknown ones
to_remove = []
for sname, session_btn in self._session_buttons.items():
if sname not in known_snames:
to_remove.append(sname)
for sname in to_remove:
self._remove_session_button(sname)
# remove current selected session if it was removed
if self._selected_session_name not in self._session_buttons:
self._selected_session_name = None
self._update_view_from_model()
def _get_selected_session_button(self):
if self._selected_session_name is None:
return
return self._session_buttons[self._selected_session_name]
def set_selected_session_name(self, sname):
if sname not in self._session_buttons:
return
if self._selected_session_name == sname:
return
self._selected_session_name = sname
self._channels_list_model.set_channels(list(self._pseudo_channels.values()))
self._update_view_from_model()
def get_session_names(self):
return list(self._session_buttons.keys())
def get_selected_session_summary(self):
selected_button = self._get_selected_session_button()
if not selected_button:
return
return selected_button.session_summary
def _update_events_list_from_selected_channels(self):
channels = self.get_selected_channels()
events = []
for channel in channels:
for event in channel.events:
events.append(event)
self._events_list_model.set_events(events)
def update_lists_from_channels(self, channels):
# add empty pseudo-channels if they're missing
domains = set([
model.Domain.JUL,
model.Domain.LOG4J,
])
if features.Feature.PYTHON_DOMAIN in self._features:
domains.add(model.Domain.PYTHON)
for channel in channels:
if channel.domain in domains:
domains.remove(channel.domain)
for domain in domains:
pseudo_channel = self._pseudo_channels[domain]
channels.append(pseudo_channel)
self._channels_list_model.set_channels(channels)
self._update_events_list_from_selected_channels()
self._update_view_from_model()
def get_current_channels(self):
return self._channels_list_model.objects
def get_current_events(self):
return self._events_list_model.objects
def _clear_events_list(self):
self._events_list.selectionModel().reset()
self._events_list_model.set_events([])
def _clear_channels_list(self):
self._channels_list.selectionModel().reset()
self._channels_list_model.set_channels(list(self._pseudo_channels.values()))
def _clear_lists_no_update(self):
self._clear_events_list()
self._clear_channels_list()
def clear_lists(self):
self._clear_lists_no_update()
self._update_view_from_model()
@staticmethod
def _get_selected_objects(object_list, get_at_row):
model_index_list = object_list.selectedIndexes()
objects = []
for index in model_index_list:
obj = get_at_row(index.row())
objects.append(obj)
return objects
def get_selected_channels(self):
return self._get_selected_objects(self._channels_list,
self.get_channel_at_row)
def get_selected_events(self):
return self._get_selected_objects(self._events_list,
self.get_event_at_row)
def full_disable(self):
to_remove = list(self._session_buttons.keys())
for sname in to_remove:
self._remove_session_button(sname)
self._selected_session_name = None
self._fully_disabled = True
self._update_view_from_model()
def full_enable(self):
self._fully_disabled = False
self._update_view_from_model()