def exportXML(jar, oid, file=None):
if file is None: file = TemporaryFile()
elif type(file) is str: file = open(file, 'w+b')
write = file.write
write('<?xml version="1.0"?>\012<ZopeData>\012')
ref = referencesf
oids = [oid]
done_oids = {}
done = done_oids.has_key
load = jar._storage.load
while oids:
oid = oids[0]
del oids[0]
if done(oid): continue
done_oids[oid] = 1
try:
try:
p, serial = load(oid)
except TypeError:
# Some places inside the ZODB 3.9 still want a version
# argument, for example TmpStore from Connection.py
p, serial = load(oid, None)
except:
pass # Ick, a broken reference
else:
ref(p, oids)
write(XMLrecord(oid, len(p), p))
write('</ZopeData>\n')
return file
def exportXML(jar, oid, file=None):
if file is None: file = TemporaryFile()
elif type(file) is str: file = open(file, 'w+b')
write = file.write
write('<?xml version="1.0"?>\012<ZopeData>\012')
version = jar._version
ref = referencesf
oids = [oid]
done_oids = {}
done = done_oids.has_key
load = jar._storage.load
while oids:
oid = oids[0]
del oids[0]
if done(oid): continue
done_oids[oid] = 1
try:
p, serial = load(oid, version)
except:
pass # Ick, a broken reference
else:
ref(p, oids)
write(XMLrecord(oid, len(p), p))
write('</ZopeData>\n')
return file
def importXML(jar, file, clue=''):
import xml.parsers.expat
if type(file) is str:
file = open(file, 'rb')
outfile = TemporaryFile()
data = file.read()
F = ppml.xmlPickler()
F.end_handlers['record'] = save_record
F.end_handlers['ZopeData'] = save_zopedata
F.start_handlers['ZopeData'] = start_zopedata
F.binary = 1
F.file = outfile
p = xml.parsers.expat.ParserCreate()
p.CharacterDataHandler = F.handle_data
p.StartElementHandler = F.unknown_starttag
p.EndElementHandler = F.unknown_endtag
r = p.Parse(data)
outfile.seek(0)
return jar.importFile(outfile, clue)
def importXML(jar, file, clue=''):
import xml.parsers.expat
if type(file) is str:
file=open(file, 'rb')
outfile=TemporaryFile()
data=file.read()
F=ppml.xmlPickler()
F.end_handlers['record'] = save_record
F.end_handlers['ZopeData'] = save_zopedata
F.start_handlers['ZopeData'] = start_zopedata
F.binary=1
F.file=outfile
p=xml.parsers.expat.ParserCreate()
p.CharacterDataHandler=F.handle_data
p.StartElementHandler=F.unknown_starttag
p.EndElementHandler=F.unknown_endtag
r=p.Parse(data)
outfile.seek(0)
return jar.importFile(outfile,clue)
def exportXML(jar, oid, file=None):
# For performance reasons, exportXML does not use 'XMLrecord' anymore to map
# oids. This requires to initialize MinimalMapping.marked_reference before
# any string output, i.e. in ppml.Reference.__init__
# This also fixed random failures when DemoStorage is used, because oids
# can have values that have a shorter representation in 'repr' instead of
# 'base64' (see ppml.convert) and ppml.String does not support this.
load = jar._storage.load
pickle_dict = {oid: None}
max_cache = [1e7] # do not cache more than 10MB of pickle data
def getReorderedPickle(oid):
p = pickle_dict[oid]
if p is None:
# Versions are ignored, but some 'load()' implementations require them
# FIXME: remove "''" when TmpStore.load() on ZODB stops asking for it.
p = load(oid, '')[0]
p = reorderPickle(jar, p)[1]
if len(p) < max_cache[0]:
max_cache[0] -= len(p)
pickle_dict[oid] = p
return p
# Sort records and initialize id_mapping
id_mapping = ppml.MinimalMapping()
reordered_oid_list = [oid]
for oid in reordered_oid_list:
_mapOid(id_mapping, oid)
for oid in referencesf(getReorderedPickle(oid)):
if oid not in pickle_dict:
pickle_dict[oid] = None
reordered_oid_list.append(oid)
# Do real export
if file is None:
file = TemporaryFile()
elif isinstance(file, basestring):
file = open(file, 'w+b')
write = file.write
write('<?xml version="1.0"?>\n<ZopeData>\n')
for oid in reordered_oid_list:
p = getReorderedPickle(oid)
write(XMLrecord(oid, len(p), p, id_mapping))
write('</ZopeData>\n')
return file