← Back to branch summary

~ntt-pf-lab/nova/monkey_patch_notification

« back to all changes in this revision

Viewing changes to vendor/Twisted-10.0.0/doc/web/examples/lj.rpy.py

  • Committer: Jesse Andrews
  • Date: 2010-05-28 06:05:26 UTC
  • Revision ID: git-v1:bf6e6e718cdc7488e2da87b21e258ccc065fe499
initial commit

Show diffs side-by-side

added added

removed removed

Lines of Context:
vendor/Twisted-10.0.0/doc/web/examples/lj.rpy.py
 
1
# Copyright (c) 2001-2004 Twisted Matrix Laboratories.
 
2
# See LICENSE for details.
 
3
 
 
4
#
 
5
# Syndicate LiveJournal users
 
6
# Demonstrates how to use chained callbacks
 
7
from __future__ import nested_scopes
 
8
 
 
9
from twisted.web import resource as resourcelib
 
10
from twisted.web import client, microdom, domhelpers, server
 
11
 
 
12
urlTemplate = 'http://www.livejournal.com/users/%s/rss'
 
13
 
 
14
class LJSyndicatingResource(resourcelib.Resource):
 
15
 
 
16
    def render_GET(self, request):
 
17
        url = urlTemplate % request.args['user'][0]
 
18
        client.getPage(url).addCallback(
 
19
        microdom.parseString).addCallback(
 
20
        lambda t: domhelpers.findNodesNamed(t, 'item')).addCallback(
 
21
        lambda itms: zip([domhelpers.findNodesNamed(x, 'title')[0]
 
22
                                                               for x in itms],
 
23
                         [domhelpers.findNodesNamed(x, 'link')[0]
 
24
                                                               for x in itms]
 
25
                        )).addCallback(
 
26
        lambda itms: '<html><head></head><body><ul>%s</ul></body></html>' %
 
27
                          '\n'.join(
 
28
               ['<li><a href="%s">%s</a></li>' % (
 
29
                  domhelpers.getNodeText(link), domhelpers.getNodeText(title))
 
30
                       for (title, link) in itms])
 
31
        ).addCallback(lambda s: (request.write(s),request.finish())).addErrback(
 
32
        lambda e: (request.write('Error: %s' % e),request.finish()))
 
33
        return server.NOT_DONE_YET
 
34
 
 
35
resource = LJSyndicatingResource()