本文整理汇总了Python中notmuch.Database.end_atomic方法的典型用法代码示例。如果您正苦于以下问题：Python Database.end_atomic方法的具体用法？Python Database.end_atomic怎么用？Python Database.end_atomic使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类notmuch.Database的用法示例。
在下文中一共展示了Database.end_atomic方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: flush
# 需要导入模块: from notmuch import Database [as 别名]
# 或者: from notmuch.Database import end_atomic [as 别名]
def flush(self):
"""
write out all queued write-commands in order, each one in a separate
:meth:`atomic <notmuch.Database.begin_atomic>` transaction.
If this fails the current action is rolled back, stays in the write
queue and an exception is raised.
You are responsible to retry flushing at a later time if you want to
ensure that the cached changes are applied to the database.
:exception: :exc:`DatabaseROError` if db is opened in read-only mode
:exception: :exc:`DatabaseLockedError` if db is locked
"""
if self.ro:
raise DatabaseROError()
if self.writequeue:
try:
mode = Database.MODE.READ_WRITE
db = Database(path=self.path, mode=mode)
except NotmuchError:
raise DatabaseLockedError()
while self.writequeue:
current_item = self.writequeue.popleft()
cmd, querystring, tags, sync, afterwards = current_item
try: # make this a transaction
db.begin_atomic()
except XapianError:
raise DatabaseError()
query = db.create_query(querystring)
for msg in query.search_messages():
msg.freeze()
if cmd == 'tag':
for tag in tags:
msg.add_tag(tag.encode(DB_ENC),
sync_maildir_flags=sync)
if cmd == 'set':
msg.remove_all_tags()
for tag in tags:
msg.add_tag(tag.encode(DB_ENC),
sync_maildir_flags=sync)
elif cmd == 'untag':
for tag in tags:
msg.remove_tag(tag.encode(DB_ENC),
sync_maildir_flags=sync)
msg.thaw()
# end transaction and reinsert queue item on error
if db.end_atomic() != notmuch.STATUS.SUCCESS:
self.writequeue.appendleft(current_item)
else:
if callable(afterwards):
afterwards()示例2: flush
# 需要导入模块: from notmuch import Database [as 别名]
# 或者: from notmuch.Database import end_atomic [as 别名]
def flush(self):
"""
write out all queued write-commands in order, each one in a separate
:meth:`atomic <notmuch.Database.begin_atomic>` transaction.
If this fails the current action is rolled back, stays in the write
queue and an exception is raised.
You are responsible to retry flushing at a later time if you want to
ensure that the cached changes are applied to the database.
:exception: :exc:`~errors.DatabaseROError` if db is opened read-only
:exception: :exc:`~errors.DatabaseLockedError` if db is locked
"""
if self.ro:
raise DatabaseROError()
if self.writequeue:
# read notmuch's config regarding imap flag synchronization
sync = settings.get_notmuch_setting('maildir', 'synchronize_flags')
# go through writequeue entries
while self.writequeue:
current_item = self.writequeue.popleft()
logging.debug('write-out item: %s', str(current_item))
# watch out for notmuch errors to re-insert current_item
# to the queue on errors
try:
# the first two coordinants are cnmdname and post-callback
cmd, afterwards = current_item[:2]
logging.debug('cmd created')
# aquire a writeable db handler
try:
mode = Database.MODE.READ_WRITE
db = Database(path=self.path, mode=mode)
except NotmuchError:
raise DatabaseLockedError()
logging.debug('got write lock')
# make this a transaction
db.begin_atomic()
logging.debug('got atomic')
if cmd == 'add':
logging.debug('add')
path, tags = current_item[2:]
msg, _ = db.add_message(path, sync_maildir_flags=sync)
logging.debug('added msg')
msg.freeze()
logging.debug('freeze')
for tag in tags:
msg.add_tag(tag.encode(DB_ENC),
sync_maildir_flags=sync)
logging.debug('added tags ')
msg.thaw()
logging.debug('thaw')
elif cmd == 'remove':
path = current_item[2]
db.remove_message(path)
else: # tag/set/untag
querystring, tags = current_item[2:]
query = db.create_query(querystring)
for msg in query.search_messages():
msg.freeze()
if cmd == 'tag':
for tag in tags:
msg.add_tag(tag.encode(DB_ENC),
sync_maildir_flags=sync)
if cmd == 'set':
msg.remove_all_tags()
for tag in tags:
msg.add_tag(tag.encode(DB_ENC),
sync_maildir_flags=sync)
elif cmd == 'untag':
for tag in tags:
msg.remove_tag(tag.encode(DB_ENC),
sync_maildir_flags=sync)
msg.thaw()
logging.debug('ended atomic')
# end transaction and reinsert queue item on error
if db.end_atomic() != notmuch.STATUS.SUCCESS:
raise DatabaseError('end_atomic failed')
logging.debug('ended atomic')
# close db
db.close()
logging.debug('closed db')
# call post-callback
if callable(afterwards):
logging.debug(str(afterwards))
afterwards()
logging.debug('called callback')
# re-insert item to the queue upon Xapian/NotmuchErrors
except (XapianError, NotmuchError) as e:
logging.exception(e)
#.........这里部分代码省略.........