6 from util.PHPSerialize import *
7 from util.PHPUnserialize import *
9 #print >>sys.stderr, "PHPSerial db type not allowed."
17 PICKLE_PATH=config.MONITOR_DATA_ROOT
20 def dbLoad(name, type=None):
21 return SPickle().load(name, type)
23 def dbExists(name, type=None):
24 #if self.config.debug:
25 # name = "debug.%s" % name
26 return SPickle().exists(name, type)
28 def dbDump(name, obj=None, type=None):
29 # depth of the dump is 2 now, since we're redirecting to '.dump'
30 return SPickle().dump(name, obj, type, 2)
32 def if_cached_else_refresh(cond, refresh, name, function, type=None):
35 if not config.debug and s.exists("production.%s" % name, type):
36 s.remove("production.%s" % name, type)
37 if config.debug and s.exists("debug.%s" % name, type):
38 s.remove("debug.%s" % name, type)
40 return if_cached_else(cond, name, function, type)
42 def if_cached_else(cond, name, function, type=None):
44 if (cond and s.exists("production.%s" % name, type)) or \
45 (cond and config.debug and s.exists("debug.%s" % name, type)):
46 o = s.load(name, type)
50 s.dump(name, o, type) # cache the object using 'name'
51 o = s.load(name, type)
52 # TODO: what if 'o' hasn't been converted...
56 def __init__(self, path=PICKLE_PATH):
59 def if_cached_else(self, cond, name, function, type=None):
60 if cond and self.exists("production.%s" % name, type):
61 o = self.load(name, type)
65 self.dump(name, o, type) # cache the object using 'name'
68 def __file(self, name, type=None):
70 return "%s/%s.pkl" % (self.path, name)
73 raise Exception("No PHPSerializer module available")
75 return "%s/%s.phpserial" % (self.path, name)
77 def exists(self, name, type=None):
78 return os.path.exists(self.__file(name, type))
80 def remove(self, name, type=None):
81 return os.remove(self.__file(name, type))
83 def load(self, name, type=None):
85 In debug mode, we should fail if neither file exists.
86 if the debug file exists, reset name
87 elif the original file exists, make a copy, reset name
88 else neither exist, raise an error
89 Otherwise, it's normal mode, if the file doesn't exist, raise error
94 if self.exists("debug.%s" % name, type):
95 name = "debug.%s" % name
96 elif self.exists("production.%s" % name, type):
97 debugname = "debug.%s" % name
98 if not self.exists(debugname, type):
99 name = "production.%s" % name
100 shutil.copyfile(self.__file(name, type), self.__file(debugname, type))
102 else: # neither exist
103 raise Exception, "No such pickle based on %s" % self.__file("debug.%s" % name, type)
105 if self.exists("production.%s" % name, type):
106 name = "production.%s" % name
107 elif self.exists(name, type):
110 raise Exception, "No such file %s" % name
114 #print traceback.print_stack()
115 #print "loading %s" % self.__file(name, type)
116 #sys.stderr.write("-----------------------------\n")
117 f = open(self.__file(name, type), 'r')
122 raise Exception("No PHPSerializer module available")
124 o = s.unserialize(f.read())
129 # use the environment to extract the data associated with the local
131 def dump(self, name, obj=None, type=None, depth=1):
133 o = inspect.getouterframes(inspect.currentframe())
134 up1 = o[depth][0] # get the frame one prior to (up from) this frame
135 argvals = inspect.getargvalues(up1)
136 # TODO: check that 'name' is a local variable; otherwise this would fail.
137 obj = argvals[3][name] # extract the local variable name 'name'
138 if not os.path.isdir("%s/" % self.path):
139 os.mkdir("%s" % self.path)
141 name = "debug.%s" % name
143 name = "production.%s" % name
144 f = open(self.__file(name, type), 'w')
149 raise Exception("No PHPSerializer module available")
151 f.write(s.serialize(obj))