work in progress: BSCW interface

git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@2592 fd906abe-77d9-0310-91a1-e0d9ade77398

integrator/README.txt

@@ -22,7 +22,7 @@ Let's do some basic set up
 
 
 Accessing Objects in the Filesystem
-=======================================
+===================================
 
   >>> top = component.getUtility(IContainerFactory, name='filesystem')(testDir)
   >>> sorted(top)

integrator/bscw.py

@@ -35,12 +35,28 @@ from cybertools.integrator.base import ReadContainer, File, Image
 from cybertools.text import mimetypes
 
 
+baseAttributes = ['__class__', 'name', 'id', 'descr', 'notes',
+    'bound_sub_artifacts', 'creator', 'owner', 'owners',
+    'ctime', 'mtime', 'atime', 'lastEvent', 'createEvent',
+    'lastChange', 'lastMove', 'containers', 'access']
+
+standardAttributes = ['__class__', 'name', 'id', 'descr', 'mtime']
+
+additionalAttributes = ['banner', 'moderated', 'ratings']
+
+documentAttributes = ['vid', 'vstore', 'file_extensions', 'size', 'encoding', 'type']
+
+urlAttributes = ['url_link', 'last_verified', 'last_error', 'content_length',
+    'content_type', 'content_encoding', 'last_modified']
+
+classes = ['cl_core.Folder', 'cl_core.Document', 'cl_core.URL', ]
+
+
 # proxy classes
 
 class ReadContainer(ReadContainer):
 
     factoryName = 'bscw'
-    data = None
 
     @Lazy
     def data(self):
@@ -64,12 +80,13 @@ class ReadContainer(ReadContainer):
             return default
         item = self.data[key]
         if 'Folder' in item['__class__']:
-            return self.containerFactory(item['id'], server=self.server)
+            return self.containerFactory(item['id'], server=self.server,
+                                         name=item['name'])
         elif 'Document' in item['__class__']:
-            return self.fileFactory(item['id'], server=self.server,
+            return self.fileFactory(item['id'], item['type'], server=self.server,
-                                    type=item['type'])
+                                    name=item['name'])
         else:
-            return OtherObject(item['id'], server=self.server)
+            return OtherObject(item['id'], None, server=self.server, name=item['name'])
 
     def values(self):
         return [self.get(k) for k in self]
@@ -93,15 +110,7 @@ class File(File):
     data = property(getData)
 
     def getSize(self):
-        return os.stat(self.address)[stat.ST_SIZE]
+        return 0
-
-
-class Image(File):
-
-    width = height = 0
-
-    def getImageSize(self):
-        return self.width, self.height
 
 
 class OtherObject(File):
@@ -116,20 +125,16 @@ class ContainerFactory(ContainerFactory):
     proxyClass = ReadContainer
 
     def __call__(self, address, **kw):
-        server = ServerProxy(address)
+        server = kw.pop('server')
-        name = kw.pop('name', '')
+        if isinstance(server, basestring):  # just a URL, resolve for XML-RPC
-        return self.proxyClass(name, server=server, **kw)
+            server = ServerProxy(server)
+        return self.proxyClass(address, server=server, **kw)
 
 
 class FileFactory(FileFactory):
 
     def __call__(self, address, **kw):
-        contentType = kw.pop('type', None)
+        contentType = kw.pop('type', 'application/octet-stream')
-        width = height = 0
         obj = File(address, contentType, **kw)
-        if contentType.startswith('image/'):
-            return Image(address, contentType=contentType,
-                         width=width, height=height, **kw)
-        else:
         obj.contentType = contentType
         return obj

integrator/bscw.txt

@@ -0,0 +1,34 @@
+=========================================
+Integrating objects from external systems
+=========================================
+
+Integration of external sources.
+
+  ($Id$)
+
+
+Accessing Objects on a Remote BSCW Repository
+=============================================
+
+In fact we do not access a remote repository but just a dummy (fake)
+repository for testing purposes.
+
+  >>> from cybertools.integrator.testing.bscw import BSCWServer, sampleObjects
+  >>> from cybertools.integrator.bscw import standardAttributes
+  >>> server = BSCWServer(sampleObjects)
+
+  >>> server.get_attributes('4', standardAttributes + ['containers'], 1, True)
+  [{...'name': 'public'...}, [{...'name': 'Introduction'...}]]
+
+Access via read container and file proxies
+------------------------------------------
+
+  >>> from zope import component
+  >>> from cybertools.integrator.bscw import ContainerFactory
+  >>> component.provideUtility(ContainerFactory(), name='bscw')
+
+  >>> from cybertools.integrator.interfaces import IContainerFactory
+  >>> root = component.getUtility(IContainerFactory, name='bscw')('4', server=server)
+
+  >>> sorted(root)
+  ['bs_5']

integrator/testing/bscw.py

@@ -0,0 +1,102 @@
+#
+#  Copyright (c) 2008 Helmut Merz helmutm@cy55.de
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+
+"""
+Fake BSCW repository for testing purposes.
+
+$Id$
+"""
+
+from xmlrpclib import Fault
+
+from cybertools.integrator import bscw
+
+
+class Artifact(dict):
+
+    attributes = bscw.baseAttributes
+    repository = None
+
+    def __init__(self, id, **kw):
+        if not id.startswith('bs_'):
+            id = 'bs_' + id
+        self.id = self['id'] = self['__id__'] = id
+        self.children = kw.pop('children', [])
+        self['__class__'] = kw.pop('__class__', 'cl_core.Folder')
+        self.update(kw)
+
+    def getData(self, attrs):
+        return dict((key, self[key]) for key in attrs if key in self)
+
+
+class BSCWRepository(dict):
+
+    def __init__(self, *objs):
+        for obj in objs:
+            self[obj.id] = obj
+            obj.repository = self
+        self.updateContainersAttribute()
+
+    def get(self, key, default=None):
+        if not key.startswith('bs_'):
+            key = 'bs_' + key
+        return super(BSCWRepository, self).get(key, default)
+
+    def updateContainersAttribute(self):
+        for obj in self.values():
+            for c in obj.children:
+                child = self.get(c)
+                if child is not None:
+                    containerInfo = dict(__id__=child.id, name=child['name'])
+                    child.setdefault('containers', []).append(containerInfo)
+
+
+sampleObjects = BSCWRepository(
+    Artifact('4', name='public', descr='Public Repository', children=['5'],
+                  containers=[dict(__id__='4711', name='Community of Anonymous')]),
+    Artifact('5', name='Introduction', descr='Introduction to BSCW'),
+)
+
+
+class BSCWServer(object):
+
+    def __init__(self, objects):
+        self. objects = objects
+
+    def get_attributes(self, id=None, attribute_names=['__id__', 'name'], depth=0,
+                       nested=False, offset=0, number=0, sorted_by=None):
+        obj = self.objects.get(id)
+        if obj is None:
+            raise Fault(10101, 'Bad object id: %s' % id)
+        result = [obj.getData(attribute_names)]
+        if nested:
+            for level in range(depth):
+                for id in obj.children:
+                    result.append(self.get_attributes(id, attribute_names,
+                                  depth-1, nested, offset, number, sorted_by))
+        return result
+
+    def get_attributenames(self, __class__):
+        return baseAttributes
+
+    def get_document(self, id, version_id):
+        return ''
+
+    def get_path(id):
+        return self.get_attributes(id, ['containers'])[0].get('containers', [])
+

integrator/tests.py

@@ -9,6 +9,8 @@ from zope.interface.verify import verifyClass
 baseDir = os.path.dirname(__file__)
 testDir = os.path.join(baseDir, 'testing', 'data')
 
+flags = doctest.NORMALIZE_WHITESPACE | doctest.ELLIPSIS
+
 
 class Test(unittest.TestCase):
     "Basic tests for the cybertools.integrator package."
@@ -18,10 +20,10 @@ class Test(unittest.TestCase):
 
 
 def test_suite():
-    flags = doctest.NORMALIZE_WHITESPACE | doctest.ELLIPSIS
     return unittest.TestSuite((
                 unittest.makeSuite(Test),
                 DocFileSuite('README.txt', optionflags=flags),
+                DocFileSuite('bscw.txt', optionflags=flags),
             ))
 
 if __name__ == '__main__':