deb-python-pyldap/Doc/ldap-async.rst

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.. % $Id: ldap-async.rst,v 1.4 2011/07/28 08:52:01 stroeder Exp $
**************************************************************
:py:mod:`ldap.async` Stream-processing of large search results
**************************************************************
.. py:module:: ldap.async
:synopsis: Framework for stream-processing of large search results.
With newer Python versions one might want to consider using
:py:mod:`ldap.resiter` instead.
Classes
=======
.. autoclass:: ldap.async.AsyncSearchHandler
:members:
.. autoclass:: ldap.async.List
:members:
.. autoclass:: ldap.async.Dict
:members:
.. autoclass:: ldap.async.IndexedDict
:members:
.. autoclass:: ldap.async.LDIFWriter
:members:
.. autoclass:: ldap.async.DSMLWriter
:members:
.. _ldap.async-example:
Examples
========
.. _ldap.async-example.List:
Using ldap.async.List
^^^^^^^^^^^^^^^^^^^^^
This example demonstrates how to use class ldap.async.List for
retrieving partial search results even though the exception
:exc:`ldap.SIZELIMIT_EXCEEDED` was raised because a server side limit was hit. ::
import sys,ldap,ldap.async
s = ldap.async.List(
ldap.initialize('ldap://localhost'),
)
s.startSearch(
'dc=stroeder,dc=com',
ldap.SCOPE_SUBTREE,
'(objectClass=*)',
)
try:
partial = s.processResults()
except ldap.SIZELIMIT_EXCEEDED:
sys.stderr.write('Warning: Server-side size limit exceeded.\n')
else:
if partial:
sys.stderr.write('Warning: Only partial results received.\n')
sys.stdout.write(
'%d results received.\n' % (
len(s.allResults)
)
)
.. _ldap.async-example.LDIFWriter:
Using ldap.async.LDIFWriter
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This example demonstrates how to use class ldap.async.LDIFWriter
for writing search results as LDIF to stdout. ::
import sys,ldap,ldap.async
s = ldap.async.LDIFWriter(
ldap.initialize('ldap://localhost:1390'),
sys.stdout
)
s.startSearch(
'dc=stroeder,dc=com',
ldap.SCOPE_SUBTREE,
'(objectClass=*)',
)
try:
partial = s.processResults()
except ldap.SIZELIMIT_EXCEEDED:
sys.stderr.write('Warning: Server-side size limit exceeded.\n')
else:
if partial:
sys.stderr.write('Warning: Only partial results received.\n')
sys.stderr.write(
'%d results received.\n' % (
s.endResultBreak-s.beginResultsDropped
)
)