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nexedi
erp5
Commits
cf05aa72
Commit
cf05aa72
authored
Feb 06, 2012
by
Julien Muchembled
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Better handling of Pdata object to avoid MemoryError
parent
7dab2ee4
Changes
2
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Showing
2 changed files
with
21 additions
and
13 deletions
+21
-13
product/ERP5/mixin/cached_convertable.py
product/ERP5/mixin/cached_convertable.py
+11
-9
product/ERP5Type/patches/OFSPdata.py
product/ERP5Type/patches/OFSPdata.py
+10
-4
No files found.
product/ERP5/mixin/cached_convertable.py
View file @
cf05aa72
...
@@ -48,10 +48,11 @@ def hashPdataObject(pdata_object):
...
@@ -48,10 +48,11 @@ def hashPdataObject(pdata_object):
to minimize memory footprint.
to minimize memory footprint.
"""
"""
md5_hash
=
md5
()
md5_hash
=
md5
()
next
=
pdata_object
while
pdata_object
is
not
None
:
while
next
is
not
None
:
chunk
=
pdata_object
.
aq_base
md5_hash
.
update
(
next
.
data
)
md5_hash
.
update
(
chunk
.
data
)
next
=
next
.
next
pdata_object
=
chunk
.
next
chunk
.
_p_deactivate
()
return
md5_hash
.
hexdigest
()
return
md5_hash
.
hexdigest
()
class
CachedConvertableMixin
:
class
CachedConvertableMixin
:
...
@@ -130,8 +131,9 @@ class CachedConvertableMixin:
...
@@ -130,8 +131,9 @@ class CachedConvertableMixin:
size
=
0
size
=
0
elif
isinstance
(
data
,
Pdata
):
elif
isinstance
(
data
,
Pdata
):
cached_value
=
aq_base
(
data
)
cached_value
=
aq_base
(
data
)
conversion_md5
=
hashPdataObject
(
cached_value
)
size
=
str
(
cached_value
)
# not a size but avoids a 'del' statement
size
=
len
(
cached_value
)
conversion_md5
=
md5
(
size
).
hexdigest
()
size
=
len
(
size
)
elif
isinstance
(
data
,
OFSImage
):
elif
isinstance
(
data
,
OFSImage
):
cached_value
=
data
cached_value
=
data
conversion_md5
=
md5
(
str
(
data
.
data
)).
hexdigest
()
conversion_md5
=
md5
(
str
(
data
.
data
)).
hexdigest
()
...
@@ -244,10 +246,10 @@ class CachedConvertableMixin:
...
@@ -244,10 +246,10 @@ class CachedConvertableMixin:
def
updateContentMd5
(
self
):
def
updateContentMd5
(
self
):
"""Update md5 checksum from the original file
"""Update md5 checksum from the original file
"""
"""
data
=
self
.
g
etData
()
data
=
self
.
_baseG
etData
()
if
data
not
in
(
None
,
''
)
:
if
data
:
if
isinstance
(
data
,
Pdata
):
if
isinstance
(
data
,
Pdata
):
self
.
_setContentMd5
(
hashPdataObject
(
aq_base
(
data
)
))
self
.
_setContentMd5
(
hashPdataObject
(
data
))
else
:
else
:
self
.
_setContentMd5
(
md5
(
data
).
hexdigest
())
# Reindex is useless
self
.
_setContentMd5
(
md5
(
data
).
hexdigest
())
# Reindex is useless
else
:
else
:
...
...
product/ERP5Type/patches/OFSPdata.py
View file @
cf05aa72
...
@@ -28,12 +28,9 @@
...
@@ -28,12 +28,9 @@
##############################################################################
##############################################################################
from
OFS.Image
import
Pdata
from
OFS.Image
import
Pdata
"""
This patch add a getLastPdata method to return the last Pdata element
of a Pdata
"""
def
getLastPdata
(
self
):
def
getLastPdata
(
self
):
"""Return the last Pdata chunk"""
next
=
self
.
next
next
=
self
.
next
while
next
is
not
None
:
while
next
is
not
None
:
...
@@ -42,3 +39,12 @@ def getLastPdata(self):
...
@@ -42,3 +39,12 @@ def getLastPdata(self):
return
self
return
self
Pdata
.
getLastPdata
=
getLastPdata
Pdata
.
getLastPdata
=
getLastPdata
def
__nonzero__
(
self
):
while
not
self
.
data
:
self
=
self
.
next
if
self
is
None
:
return
False
return
True
Pdata
.
__nonzero__
=
__nonzero__
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