1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
"""Some debugging functions for working with the Scrapy engine"""
from time import time # used in global tests code
def get_engine_status(engine):
"""Return a report of the current engine status"""
global_tests = [
"time()-engine.start_time",
"engine.has_capacity()",
"engine.downloader.is_idle()",
"len(engine.downloader.slots)",
"len(engine.downloader.active)",
"engine.scraper.is_idle()",
"len(engine.scraper.slots)",
]
spider_tests = [
"engine.spider_is_idle(spider)",
"engine.slots[spider].closing",
"len(engine.slots[spider].inprogress)",
"len(engine.slots[spider].scheduler.dqs or [])",
"len(engine.slots[spider].scheduler.mqs)",
"len(engine.scraper.slots[spider].queue)",
"len(engine.scraper.slots[spider].active)",
"engine.scraper.slots[spider].active_size",
"engine.scraper.slots[spider].itemproc_size",
"engine.scraper.slots[spider].needs_backout()",
]
status = {'global': [], 'spiders': {}}
for test in global_tests:
try:
status['global'] += [(test, eval(test))]
except Exception, e:
status['global'] += [(test, "%s (exception)" % type(e).__name__)]
for spider in engine.slots.keys():
x = []
for test in spider_tests:
try:
x += [(test, eval(test))]
except Exception, e:
x += [(test, "%s (exception)" % type(e).__name__)]
status['spiders'][spider] = x
return status
def format_engine_status(engine=None):
status = get_engine_status(engine)
s = "Execution engine status\n\n"
for test, result in status['global']:
s += "%-47s : %s\n" % (test, result)
s += "\n"
for spider, tests in status['spiders'].items():
s += "Spider: %s\n" % spider
for test, result in tests:
s += " %-50s : %s\n" % (test, result)
return s
def print_engine_status(engine):
print format_engine_status(engine)
|
