import os
import sys
import pickle
+noserial=False
+try:
+ from PHPSerialize import *
+ from PHPUnserialize import *
+except:
+ print >>sys.stderr, "PHPSerial db type not allowed."
+ noserial=True
+
import inspect
import shutil
from config import config
DEBUG= 0
PICKLE_PATH="pdb"
-def dbLoad(name):
- return SPickle().load(name)
+def dbLoad(name, type=None):
+ return SPickle().load(name, type)
-def dbExists(name):
+def dbExists(name, type=None):
#if self.config.debug:
# name = "debug.%s" % name
- return SPickle().exists(name)
+ return SPickle().exists(name, type)
-def dbDump(name, obj=None):
+def dbDump(name, obj=None, type=None):
# depth of the dump is 2 now, since we're redirecting to '.dump'
- return SPickle().dump(name, obj, 2)
+ return SPickle().dump(name, obj, type, 2)
-def if_cached_else(cond, name, function):
+def if_cached_else_refresh(cond, refresh, name, function, type=None):
s = SPickle()
- if (cond and s.exists("production.%s" % name)) or \
- (cond and config.debug and s.exists("debug.%s" % name)):
- o = s.load(name)
+ if refresh:
+ if not config.debug and s.exists("production.%s" % name, type):
+ s.remove("production.%s" % name, type)
+ if config.debug and s.exists("debug.%s" % name, type):
+ s.remove("debug.%s" % name, type)
+
+ return if_cached_else(cond, name, function, type)
+
+def if_cached_else(cond, name, function, type=None):
+ s = SPickle()
+ if (cond and s.exists("production.%s" % name, type)) or \
+ (cond and config.debug and s.exists("debug.%s" % name, type)):
+ o = s.load(name, type)
else:
o = function()
if cond:
- s.dump(name, o) # cache the object using 'name'
+ s.dump(name, o, type) # cache the object using 'name'
+ o = s.load(name, type)
+ # TODO: what if 'o' hasn't been converted...
return o
class SPickle:
def __init__(self):
- self.config = config
+ pass
- def if_cached_else(self, cond, name, function):
- if cond and self.exists("production.%s" % name):
- o = self.load(name)
+ def if_cached_else(self, cond, name, function, type=None):
+ if cond and self.exists("production.%s" % name, type):
+ o = self.load(name, type)
else:
o = function()
if cond:
- self.dump(name, o) # cache the object using 'name'
+ self.dump(name, o, type) # cache the object using 'name'
return o
- def __file(self, name):
- return "%s/%s.pkl" % (PICKLE_PATH, name)
+ def __file(self, name, type=None):
+ if type == None:
+ return "%s/%s.pkl" % (PICKLE_PATH, name)
+ else:
+ if noserial:
+ raise Exception("No PHPSerializer module available")
+
+ return "%s/%s.phpserial" % (PICKLE_PATH, name)
- def exists(self, name):
- return os.path.exists(self.__file(name))
+ def exists(self, name, type=None):
+ return os.path.exists(self.__file(name, type))
+
+ def remove(self, name, type=None):
+ return os.remove(self.__file(name, type))
- def load(self, name):
+ def load(self, name, type=None):
"""
In debug mode, we should fail if neither file exists.
if the debug file exists, reset name
Load the file
"""
- if self.config.debug:
- if self.exists("debug.%s" % name):
+ if config.debug:
+ if self.exists("debug.%s" % name, type):
name = "debug.%s" % name
- elif self.exists("production.%s" % name):
+ elif self.exists("production.%s" % name, type):
debugname = "debug.%s" % name
- if not self.exists(debugname):
+ if not self.exists(debugname, type):
name = "production.%s" % name
- shutil.copyfile(self.__file(name), self.__file(debugname))
+ shutil.copyfile(self.__file(name, type), self.__file(debugname, type))
name = debugname
else: # neither exist
- raise Exception, "No such pickle based on %s" % self.__file("debug.%s" % name)
+ raise Exception, "No such pickle based on %s" % self.__file("debug.%s" % name, type)
else:
- if not self.exists("production.%s" % name):
+ if not self.exists("production.%s" % name, type):
raise Exception, "No such file %s" % name
name = "production.%s" % name
- print "loading %s" % self.__file(name)
- f = open(self.__file(name), 'r')
- o = pickle.load(f)
+ print "loading %s" % self.__file(name, type)
+ f = open(self.__file(name, type), 'r')
+ if type == None:
+ o = pickle.load(f)
+ else:
+ if noserial:
+ raise Exception("No PHPSerializer module available")
+ s = PHPUnserialize()
+ o = s.unserialize(f.read())
f.close()
return o
# use the environment to extract the data associated with the local
# variable 'name'
- def dump(self, name, obj=None, depth=1):
+ def dump(self, name, obj=None, type=None, depth=1):
if obj == None:
o = inspect.getouterframes(inspect.currentframe())
up1 = o[depth][0] # get the frame one prior to (up from) this frame
obj = argvals[3][name] # extract the local variable name 'name'
if not os.path.isdir("%s/" % PICKLE_PATH):
os.mkdir("%s" % PICKLE_PATH)
- if self.config.debug:
+ if config.debug:
name = "debug.%s" % name
else:
name = "production.%s" % name
- f = open(self.__file(name), 'w')
- pickle.dump(obj, f)
+ f = open(self.__file(name, type), 'w')
+ if type == None:
+ pickle.dump(obj, f)
+ else:
+ if noserial:
+ raise Exception("No PHPSerializer module available")
+ s = PHPSerialize()
+ f.write(s.serialize(obj))
f.close()
return
# Reached a timeout!
print "TODO: kill subprocess: '%s'" % cmd
# TODO: kill subprocess??
- return ("", "TIMEOUT")
+ return ("", "SCRIPTTIMEOUT")
o_value = f_out.read()
e_value = ""
if o_value == "": # An error has occured