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f37913e8 | 1 | #!/usr/bin/python3 |
eed405de MT |
2 | ############################################################################### |
3 | # # | |
4 | # collecty - A system statistics collection daemon for IPFire # | |
5 | # Copyright (C) 2012 IPFire development team # | |
6 | # # | |
7 | # This program is free software: you can redistribute it and/or modify # | |
8 | # it under the terms of the GNU General Public License as published by # | |
9 | # the Free Software Foundation, either version 3 of the License, or # | |
10 | # (at your option) any later version. # | |
11 | # # | |
12 | # This program is distributed in the hope that it will be useful, # | |
13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of # | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # | |
15 | # GNU General Public License for more details. # | |
16 | # # | |
17 | # You should have received a copy of the GNU General Public License # | |
18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. # | |
19 | # # | |
20 | ############################################################################### | |
21 | ||
72364063 | 22 | import datetime |
4ac0cdf0 | 23 | import logging |
965a9c51 | 24 | import math |
4ac0cdf0 | 25 | import os |
cd8bba0b | 26 | import re |
4ac0cdf0 | 27 | import rrdtool |
c968f6d9 | 28 | import tempfile |
49ce926e | 29 | import threading |
4ac0cdf0 | 30 | import time |
f37913e8 | 31 | import unicodedata |
4ac0cdf0 | 32 | |
429ba506 | 33 | from .. import locales |
4ac0cdf0 | 34 | from ..constants import * |
eed405de MT |
35 | from ..i18n import _ |
36 | ||
cd8bba0b MT |
37 | DEF_MATCH = re.compile(r"C?DEF:([A-Za-z0-9_]+)=") |
38 | ||
4be39bf9 MT |
39 | class Timer(object): |
40 | def __init__(self, timeout, heartbeat=1): | |
41 | self.timeout = timeout | |
42 | self.heartbeat = heartbeat | |
43 | ||
e746a56e MT |
44 | self.delay = 0 |
45 | ||
4be39bf9 MT |
46 | self.reset() |
47 | ||
e746a56e | 48 | def reset(self, delay=0): |
4be39bf9 MT |
49 | # Save start time. |
50 | self.start = time.time() | |
51 | ||
e746a56e MT |
52 | self.delay = delay |
53 | ||
4be39bf9 MT |
54 | # Has this timer been killed? |
55 | self.killed = False | |
56 | ||
57 | @property | |
58 | def elapsed(self): | |
e746a56e | 59 | return time.time() - self.start - self.delay |
4be39bf9 MT |
60 | |
61 | def cancel(self): | |
62 | self.killed = True | |
63 | ||
64 | def wait(self): | |
65 | while self.elapsed < self.timeout and not self.killed: | |
66 | time.sleep(self.heartbeat) | |
67 | ||
68 | return self.elapsed > self.timeout | |
69 | ||
70 | ||
cb1ccb4f MT |
71 | class Environment(object): |
72 | """ | |
73 | Sets the correct environment for rrdtool to create | |
74 | localised graphs and graphs in the correct timezone. | |
75 | """ | |
76 | def __init__(self, timezone, locale): | |
77 | # Build the new environment | |
78 | self.new_environment = { | |
79 | "TZ" : timezone or DEFAULT_TIMEZONE, | |
80 | } | |
81 | ||
82 | for k in ("LANG", "LC_ALL"): | |
83 | self.new_environment[k] = locale or DEFAULT_LOCALE | |
84 | ||
85 | def __enter__(self): | |
86 | # Save the current environment | |
87 | self.old_environment = {} | |
88 | for k in self.new_environment: | |
89 | self.old_environment[k] = os.environ.get(k, None) | |
90 | ||
91 | # Apply the new one | |
92 | os.environ.update(self.new_environment) | |
93 | ||
94 | def __exit__(self, type, value, traceback): | |
95 | # Roll back to the previous environment | |
96 | for k, v in self.old_environment.items(): | |
97 | if v is None: | |
98 | try: | |
99 | del os.environ[k] | |
100 | except KeyError: | |
101 | pass | |
102 | else: | |
103 | os.environ[k] = v | |
104 | ||
105 | ||
f37913e8 MT |
106 | class PluginRegistration(type): |
107 | plugins = {} | |
108 | ||
109 | def __init__(plugin, name, bases, dict): | |
110 | type.__init__(plugin, name, bases, dict) | |
111 | ||
112 | # The main class from which is inherited is not registered | |
113 | # as a plugin. | |
114 | if name == "Plugin": | |
115 | return | |
116 | ||
117 | if not all((plugin.name, plugin.description)): | |
118 | raise RuntimeError(_("Plugin is not properly configured: %s") % plugin) | |
119 | ||
120 | PluginRegistration.plugins[plugin.name] = plugin | |
121 | ||
122 | ||
123 | def get(): | |
124 | """ | |
125 | Returns a list with all automatically registered plugins. | |
126 | """ | |
127 | return PluginRegistration.plugins.values() | |
128 | ||
129 | class Plugin(object, metaclass=PluginRegistration): | |
4ac0cdf0 MT |
130 | # The name of this plugin. |
131 | name = None | |
132 | ||
133 | # A description for this plugin. | |
134 | description = None | |
135 | ||
b1ea4956 MT |
136 | # Templates which can be used to generate a graph out of |
137 | # the data from this data source. | |
138 | templates = [] | |
139 | ||
72364063 MT |
140 | # The default interval for all plugins |
141 | interval = 60 | |
4ac0cdf0 | 142 | |
eed405de | 143 | def __init__(self, collecty, **kwargs): |
eed405de MT |
144 | self.collecty = collecty |
145 | ||
4ac0cdf0 MT |
146 | # Check if this plugin was configured correctly. |
147 | assert self.name, "Name of the plugin is not set: %s" % self.name | |
148 | assert self.description, "Description of the plugin is not set: %s" % self.description | |
4ac0cdf0 MT |
149 | |
150 | # Initialize the logger. | |
151 | self.log = logging.getLogger("collecty.plugins.%s" % self.name) | |
152 | self.log.propagate = 1 | |
eed405de | 153 | |
eed405de MT |
154 | self.data = [] |
155 | ||
269f74cd MT |
156 | # Run some custom initialization. |
157 | self.init(**kwargs) | |
158 | ||
0ee0c42d | 159 | self.log.debug(_("Successfully initialized %s") % self.__class__.__name__) |
4ac0cdf0 | 160 | |
73db5226 | 161 | @property |
72364063 | 162 | def path(self): |
73db5226 | 163 | """ |
72364063 MT |
164 | Returns the name of the sub directory in which all RRD files |
165 | for this plugin should be stored in. | |
73db5226 MT |
166 | """ |
167 | return self.name | |
168 | ||
72364063 MT |
169 | ### Basic methods |
170 | ||
171 | def init(self, **kwargs): | |
4ac0cdf0 | 172 | """ |
72364063 | 173 | Do some custom initialization stuff here. |
4ac0cdf0 | 174 | """ |
72364063 MT |
175 | pass |
176 | ||
177 | def collect(self): | |
178 | """ | |
179 | Gathers the statistical data, this plugin collects. | |
180 | """ | |
181 | time_start = time.time() | |
182 | ||
183 | # Run through all objects of this plugin and call the collect method. | |
184 | for o in self.objects: | |
185 | now = datetime.datetime.utcnow() | |
186 | try: | |
187 | result = o.collect() | |
f648421a | 188 | |
a9af411f | 189 | result = self._format_result(result) |
72364063 MT |
190 | except: |
191 | self.log.warning(_("Unhandled exception in %s.collect()") % o, exc_info=True) | |
192 | continue | |
193 | ||
194 | if not result: | |
195 | self.log.warning(_("Received empty result: %s") % o) | |
196 | continue | |
197 | ||
198 | self.log.debug(_("Collected %s: %s") % (o, result)) | |
199 | ||
200 | # Add the object to the write queue so that the data is written | |
201 | # to the databases later. | |
202 | self.collecty.write_queue.add(o, now, result) | |
203 | ||
204 | # Returns the time this function took to complete. | |
49c1b8fd | 205 | delay = time.time() - time_start |
72364063 | 206 | |
49c1b8fd MT |
207 | # Log some warning when a collect method takes too long to return some data |
208 | if delay >= 60: | |
209 | self.log.warning(_("A worker thread was stalled for %.4fs") % delay) | |
4ac0cdf0 | 210 | |
a9af411f MT |
211 | @staticmethod |
212 | def _format_result(result): | |
213 | if not isinstance(result, tuple) and not isinstance(result, list): | |
214 | return result | |
215 | ||
216 | # Replace all Nones by NaN | |
217 | s = [] | |
218 | ||
219 | for e in result: | |
220 | if e is None: | |
221 | e = "NaN" | |
222 | ||
223 | # Format as string | |
224 | e = "%s" % e | |
225 | ||
226 | s.append(e) | |
227 | ||
228 | return ":".join(s) | |
229 | ||
c968f6d9 MT |
230 | def get_object(self, id): |
231 | for object in self.objects: | |
232 | if not object.id == id: | |
233 | continue | |
234 | ||
235 | return object | |
236 | ||
429ba506 | 237 | def get_template(self, template_name, object_id, locale=None, timezone=None): |
c968f6d9 MT |
238 | for template in self.templates: |
239 | if not template.name == template_name: | |
240 | continue | |
241 | ||
429ba506 | 242 | return template(self, object_id, locale=locale, timezone=timezone) |
c968f6d9 | 243 | |
429ba506 MT |
244 | def generate_graph(self, template_name, object_id="default", |
245 | timezone=None, locale=None, **kwargs): | |
246 | template = self.get_template(template_name, object_id=object_id, | |
247 | timezone=timezone, locale=locale) | |
c968f6d9 MT |
248 | if not template: |
249 | raise RuntimeError("Could not find template %s" % template_name) | |
250 | ||
251 | time_start = time.time() | |
252 | ||
0308c0f3 | 253 | graph = template.generate_graph(**kwargs) |
c968f6d9 MT |
254 | |
255 | duration = time.time() - time_start | |
0ee0c42d | 256 | self.log.debug(_("Generated graph %s in %.1fms") \ |
c968f6d9 MT |
257 | % (template, duration * 1000)) |
258 | ||
259 | return graph | |
260 | ||
a3864812 MT |
261 | def graph_info(self, template_name, object_id="default", |
262 | timezone=None, locale=None, **kwargs): | |
263 | template = self.get_template(template_name, object_id=object_id, | |
264 | timezone=timezone, locale=locale) | |
265 | if not template: | |
266 | raise RuntimeError("Could not find template %s" % template_name) | |
267 | ||
268 | return template.graph_info() | |
269 | ||
8ee5a71a MT |
270 | def last_update(self, object_id="default"): |
271 | object = self.get_object(object_id) | |
272 | if not object: | |
273 | raise RuntimeError("Could not find object %s" % object_id) | |
274 | ||
275 | return object.last_update() | |
276 | ||
72364063 MT |
277 | |
278 | class Object(object): | |
279 | # The schema of the RRD database. | |
280 | rrd_schema = None | |
281 | ||
282 | # RRA properties. | |
418174a4 MT |
283 | rra_types = ("AVERAGE", "MIN", "MAX") |
284 | rra_timespans = ( | |
285 | ("1m", "10d"), | |
286 | ("1h", "18M"), | |
287 | ("1d", "5y"), | |
288 | ) | |
72364063 MT |
289 | |
290 | def __init__(self, plugin, *args, **kwargs): | |
291 | self.plugin = plugin | |
292 | ||
293 | # Indicates if this object has collected its data | |
294 | self.collected = False | |
295 | ||
296 | # Initialise this object | |
297 | self.init(*args, **kwargs) | |
298 | ||
299 | # Create the database file. | |
300 | self.create() | |
301 | ||
302 | def __repr__(self): | |
303 | return "<%s>" % self.__class__.__name__ | |
4ac0cdf0 | 304 | |
965a9c51 | 305 | @property |
72364063 MT |
306 | def collecty(self): |
307 | return self.plugin.collecty | |
965a9c51 | 308 | |
881751ed | 309 | @property |
72364063 MT |
310 | def log(self): |
311 | return self.plugin.log | |
312 | ||
313 | @property | |
314 | def id(self): | |
315 | """ | |
316 | Returns a UNIQUE identifier for this object. As this is incorporated | |
317 | into the path of RRD file, it must only contain ASCII characters. | |
318 | """ | |
319 | raise NotImplementedError | |
881751ed | 320 | |
4ac0cdf0 MT |
321 | @property |
322 | def file(self): | |
323 | """ | |
324 | The absolute path to the RRD file of this plugin. | |
325 | """ | |
57797e47 MT |
326 | filename = self._normalise_filename("%s.rrd" % self.id) |
327 | ||
328 | return os.path.join(DATABASE_DIR, self.plugin.path, filename) | |
329 | ||
330 | @staticmethod | |
331 | def _normalise_filename(filename): | |
332 | # Convert the filename into ASCII characters only | |
f37913e8 | 333 | filename = unicodedata.normalize("NFKC", filename) |
57797e47 MT |
334 | |
335 | # Replace any spaces by dashes | |
336 | filename = filename.replace(" ", "-") | |
337 | ||
338 | return filename | |
72364063 MT |
339 | |
340 | ### Basic methods | |
341 | ||
342 | def init(self, *args, **kwargs): | |
343 | """ | |
344 | Do some custom initialization stuff here. | |
345 | """ | |
346 | pass | |
eed405de | 347 | |
4ac0cdf0 MT |
348 | def create(self): |
349 | """ | |
350 | Creates an empty RRD file with the desired data structures. | |
351 | """ | |
352 | # Skip if the file does already exist. | |
353 | if os.path.exists(self.file): | |
354 | return | |
eed405de | 355 | |
4ac0cdf0 MT |
356 | dirname = os.path.dirname(self.file) |
357 | if not os.path.exists(dirname): | |
358 | os.makedirs(dirname) | |
eed405de | 359 | |
965a9c51 | 360 | # Create argument list. |
ff0bbd88 | 361 | args = self.get_rrd_schema() |
965a9c51 MT |
362 | |
363 | rrdtool.create(self.file, *args) | |
eed405de | 364 | |
4ac0cdf0 | 365 | self.log.debug(_("Created RRD file %s.") % self.file) |
dadb8fb0 MT |
366 | for arg in args: |
367 | self.log.debug(" %s" % arg) | |
eed405de | 368 | |
72364063 MT |
369 | def info(self): |
370 | return rrdtool.info(self.file) | |
371 | ||
8ee5a71a MT |
372 | def last_update(self): |
373 | """ | |
374 | Returns a dictionary with the timestamp and | |
375 | data set of the last database update. | |
376 | """ | |
377 | return { | |
378 | "dataset" : self.last_dataset, | |
379 | "timestamp" : self.last_updated, | |
380 | } | |
381 | ||
382 | def _last_update(self): | |
383 | return rrdtool.lastupdate(self.file) | |
384 | ||
385 | @property | |
386 | def last_updated(self): | |
387 | """ | |
388 | Returns the timestamp when this database was last updated | |
389 | """ | |
390 | lu = self._last_update() | |
391 | ||
392 | if lu: | |
393 | return lu.get("date") | |
394 | ||
395 | @property | |
396 | def last_dataset(self): | |
397 | """ | |
398 | Returns the latest dataset in the database | |
399 | """ | |
400 | lu = self._last_update() | |
401 | ||
402 | if lu: | |
403 | return lu.get("ds") | |
404 | ||
72364063 MT |
405 | @property |
406 | def stepsize(self): | |
407 | return self.plugin.interval | |
408 | ||
409 | @property | |
410 | def heartbeat(self): | |
411 | return self.stepsize * 2 | |
412 | ||
965a9c51 MT |
413 | def get_rrd_schema(self): |
414 | schema = [ | |
415 | "--step", "%s" % self.stepsize, | |
416 | ] | |
417 | for line in self.rrd_schema: | |
418 | if line.startswith("DS:"): | |
419 | try: | |
420 | (prefix, name, type, lower_limit, upper_limit) = line.split(":") | |
421 | ||
422 | line = ":".join(( | |
423 | prefix, | |
424 | name, | |
425 | type, | |
881751ed | 426 | "%s" % self.heartbeat, |
965a9c51 MT |
427 | lower_limit, |
428 | upper_limit | |
429 | )) | |
430 | except ValueError: | |
431 | pass | |
432 | ||
433 | schema.append(line) | |
434 | ||
435 | xff = 0.1 | |
436 | ||
418174a4 MT |
437 | for steps, rows in self.rra_timespans: |
438 | for type in self.rra_types: | |
439 | schema.append("RRA:%s:%s:%s:%s" % (type, xff, steps, rows)) | |
965a9c51 MT |
440 | |
441 | return schema | |
442 | ||
cd8bba0b MT |
443 | def make_rrd_defs(self, prefix=None): |
444 | defs = [] | |
445 | ||
446 | for line in self.rrd_schema: | |
447 | (def_type, name, type, lower_limit, upper_limit) = line.split(":") | |
448 | ||
449 | if prefix: | |
450 | p = "%s_%s" % (prefix, name) | |
451 | else: | |
452 | p = name | |
453 | ||
454 | defs += [ | |
455 | "DEF:%s=%s:%s:AVERAGE" % (p, self.file, name), | |
456 | ] | |
457 | ||
458 | return defs | |
459 | ||
72364063 MT |
460 | def execute(self): |
461 | if self.collected: | |
462 | raise RuntimeError("This object has already collected its data") | |
eed405de | 463 | |
72364063 MT |
464 | self.collected = True |
465 | self.now = datetime.datetime.utcnow() | |
4ac0cdf0 | 466 | |
72364063 MT |
467 | # Call the collect |
468 | result = self.collect() | |
4ac0cdf0 | 469 | |
72364063 | 470 | def commit(self): |
4ac0cdf0 | 471 | """ |
72364063 | 472 | Will commit the collected data to the database. |
4ac0cdf0 | 473 | """ |
72364063 | 474 | # Make sure that the RRD database has been created |
dadb8fb0 MT |
475 | self.create() |
476 | ||
ca9b9221 MT |
477 | # Write everything to disk that is in the write queue |
478 | self.collecty.write_queue.commit_file(self.file) | |
479 | ||
b1ea4956 MT |
480 | |
481 | class GraphTemplate(object): | |
482 | # A unique name to identify this graph template. | |
483 | name = None | |
484 | ||
f181246a MT |
485 | # Headline of the graph image |
486 | graph_title = None | |
487 | ||
488 | # Vertical label of the graph | |
489 | graph_vertical_label = None | |
490 | ||
491 | # Limits | |
492 | lower_limit = None | |
493 | upper_limit = None | |
494 | ||
b1ea4956 MT |
495 | # Instructions how to create the graph. |
496 | rrd_graph = None | |
497 | ||
498 | # Extra arguments passed to rrdgraph. | |
499 | rrd_graph_args = [] | |
500 | ||
c968f6d9 MT |
501 | intervals = { |
502 | None : "-3h", | |
503 | "hour" : "-1h", | |
504 | "day" : "-25h", | |
59385e95 | 505 | "month": "-30d", |
c968f6d9 MT |
506 | "week" : "-360h", |
507 | "year" : "-365d", | |
508 | } | |
509 | ||
510 | # Default dimensions for this graph | |
511 | height = GRAPH_DEFAULT_HEIGHT | |
512 | width = GRAPH_DEFAULT_WIDTH | |
513 | ||
429ba506 | 514 | def __init__(self, plugin, object_id, locale=None, timezone=None): |
c968f6d9 MT |
515 | self.plugin = plugin |
516 | ||
429ba506 MT |
517 | # Save localisation parameters |
518 | self.locale = locales.get(locale) | |
519 | self.timezone = timezone | |
520 | ||
0308c0f3 MT |
521 | # Get all required RRD objects |
522 | self.object_id = object_id | |
523 | ||
524 | # Get the main object | |
525 | self.object = self.get_object(self.object_id) | |
526 | ||
c968f6d9 MT |
527 | def __repr__(self): |
528 | return "<%s>" % self.__class__.__name__ | |
b1ea4956 MT |
529 | |
530 | @property | |
531 | def collecty(self): | |
c968f6d9 | 532 | return self.plugin.collecty |
b1ea4956 | 533 | |
c968f6d9 MT |
534 | @property |
535 | def log(self): | |
536 | return self.plugin.log | |
537 | ||
5913a52c | 538 | def _make_command_line(self, interval, format=DEFAULT_IMAGE_FORMAT, |
edf268c7 MT |
539 | width=None, height=None, with_title=True, thumbnail=False): |
540 | args = [e for e in GRAPH_DEFAULT_ARGUMENTS] | |
c968f6d9 | 541 | |
edf268c7 MT |
542 | # Set the default dimensions |
543 | default_height, default_width = GRAPH_DEFAULT_HEIGHT, GRAPH_DEFAULT_WIDTH | |
544 | ||
545 | # A thumbnail doesn't have a legend and other labels | |
546 | if thumbnail: | |
547 | args.append("--only-graph") | |
548 | ||
549 | default_height = THUMBNAIL_DEFAULT_HEIGHT | |
550 | default_width = THUMBNAIL_DEFAULT_WIDTH | |
c968f6d9 MT |
551 | |
552 | args += [ | |
5913a52c | 553 | "--imgformat", format, |
edf268c7 MT |
554 | "--height", "%s" % (height or default_height), |
555 | "--width", "%s" % (width or default_width), | |
73db5226 | 556 | ] |
eed405de | 557 | |
c968f6d9 | 558 | args += self.rrd_graph_args |
eed405de | 559 | |
f181246a | 560 | # Graph title |
ca8a6cfa | 561 | if with_title and self.graph_title: |
f181246a MT |
562 | args += ["--title", self.graph_title] |
563 | ||
564 | # Vertical label | |
565 | if self.graph_vertical_label: | |
566 | args += ["--vertical-label", self.graph_vertical_label] | |
567 | ||
568 | if self.lower_limit is not None or self.upper_limit is not None: | |
569 | # Force to honour the set limits | |
570 | args.append("--rigid") | |
571 | ||
572 | if self.lower_limit is not None: | |
573 | args += ["--lower-limit", self.lower_limit] | |
574 | ||
575 | if self.upper_limit is not None: | |
576 | args += ["--upper-limit", self.upper_limit] | |
577 | ||
b1ea4956 | 578 | try: |
c9351f4f | 579 | interval = self.intervals[interval] |
b1ea4956 | 580 | except KeyError: |
c9351f4f MT |
581 | interval = "end-%s" % interval |
582 | ||
583 | # Add interval | |
584 | args += ["--start", interval] | |
c968f6d9 MT |
585 | |
586 | return args | |
587 | ||
cd8bba0b MT |
588 | def _add_vdefs(self, args): |
589 | ret = [] | |
590 | ||
591 | for arg in args: | |
592 | ret.append(arg) | |
593 | ||
594 | # Search for all DEFs and CDEFs | |
595 | m = re.match(DEF_MATCH, "%s" % arg) | |
596 | if m: | |
597 | name = m.group(1) | |
598 | ||
599 | # Add the VDEFs for minimum, maximum, etc. values | |
600 | ret += [ | |
601 | "VDEF:%s_cur=%s,LAST" % (name, name), | |
602 | "VDEF:%s_avg=%s,AVERAGE" % (name, name), | |
603 | "VDEF:%s_max=%s,MAXIMUM" % (name, name), | |
604 | "VDEF:%s_min=%s,MINIMUM" % (name, name), | |
605 | ] | |
606 | ||
607 | return ret | |
608 | ||
0308c0f3 MT |
609 | def get_object(self, *args, **kwargs): |
610 | return self.plugin.get_object(*args, **kwargs) | |
611 | ||
612 | def get_object_table(self): | |
c968f6d9 | 613 | return { |
0308c0f3 | 614 | "file" : self.object, |
c968f6d9 MT |
615 | } |
616 | ||
fc359f4d MT |
617 | @property |
618 | def object_table(self): | |
619 | if not hasattr(self, "_object_table"): | |
620 | self._object_table = self.get_object_table() | |
621 | ||
622 | return self._object_table | |
623 | ||
0308c0f3 | 624 | def get_object_files(self): |
c968f6d9 MT |
625 | files = {} |
626 | ||
fc359f4d | 627 | for id, obj in self.object_table.items(): |
c968f6d9 MT |
628 | files[id] = obj.file |
629 | ||
630 | return files | |
631 | ||
429ba506 | 632 | def generate_graph(self, interval=None, **kwargs): |
ca9b9221 MT |
633 | # Make sure that all collected data is in the database |
634 | # to get a recent graph image | |
635 | if self.object: | |
636 | self.object.commit() | |
637 | ||
c968f6d9 MT |
638 | args = self._make_command_line(interval, **kwargs) |
639 | ||
640 | self.log.info(_("Generating graph %s") % self) | |
c968f6d9 | 641 | |
cd8bba0b | 642 | #object_files = self.get_object_files() |
eed405de | 643 | |
cd8bba0b MT |
644 | if self.object: |
645 | args += self.object.make_rrd_defs() | |
eed405de | 646 | |
cd8bba0b MT |
647 | args += self.rrd_graph |
648 | args = self._add_vdefs(args) | |
0308c0f3 | 649 | |
699e99fb | 650 | # Convert arguments to string |
5913a52c MT |
651 | args = [str(e) for e in args] |
652 | ||
cd8bba0b MT |
653 | for arg in args: |
654 | self.log.debug(" %s" % arg) | |
655 | ||
429ba506 | 656 | with Environment(self.timezone, self.locale.lang): |
cb1ccb4f | 657 | graph = rrdtool.graphv("-", *args) |
c968f6d9 | 658 | |
a3864812 MT |
659 | return { |
660 | "image" : graph.get("image"), | |
661 | "image_height" : graph.get("image_height"), | |
662 | "image_width" : graph.get("image_width"), | |
663 | } | |
664 | ||
665 | def graph_info(self): | |
666 | """ | |
667 | Returns a dictionary with useful information | |
668 | about this graph. | |
669 | """ | |
670 | return { | |
671 | "title" : self.graph_title, | |
672 | "object_id" : self.object_id or "", | |
673 | "template" : self.name, | |
674 | } |