121 lines
2.8 KiB
Text
121 lines
2.8 KiB
Text
=========================================
|
|
Integrating objects from external systems
|
|
=========================================
|
|
|
|
Integration of external sources.
|
|
|
|
($Id$)
|
|
|
|
|
|
Getting started
|
|
===============
|
|
|
|
Let's do some basic set up
|
|
|
|
>>> from zope import component
|
|
|
|
>>> from cybertools.integrator.tests.test_filesystem import testDir
|
|
>>> from cybertools.integrator.filesystem import ContainerFactory, FileFactory
|
|
>>> from cybertools.integrator.interfaces import IContainerFactory
|
|
>>> component.provideUtility(ContainerFactory(), name='filesystem')
|
|
>>> component.provideUtility(FileFactory(), name='filesystem')
|
|
|
|
|
|
Accessing Objects in the Filesystem
|
|
===================================
|
|
|
|
We access the top-level object (a directory) by calling the container (proxy)
|
|
factory with the address (path) leading to the directory.
|
|
|
|
>>> top = component.getUtility(IContainerFactory, name='filesystem')(testDir)
|
|
|
|
This top-level object is a container with some sub-objects, that may be
|
|
containers themeselves or terminal objects (items or files).
|
|
|
|
>>> sorted(top)
|
|
['index.html', 'sub']
|
|
|
|
A proxy provides a set of attributes that may be used for viewing the
|
|
object or navigating to it.
|
|
|
|
>>> top.address
|
|
'...data'
|
|
>>> top.internalPath
|
|
''
|
|
>>> top.icon
|
|
'folder'
|
|
>>> top.properties
|
|
{}
|
|
>>> top.title
|
|
'data'
|
|
|
|
The external URL information may be used for directly linking to the
|
|
external object - in the case of filesystem objects this is not possible
|
|
in a general way, so this attribute is always None.
|
|
|
|
>>> top.externalUrlInfo is None
|
|
True
|
|
|
|
Let's now have a look at the sub-objects found in the top-level container.
|
|
|
|
>>> sub = top['sub']
|
|
>>> sorted(sub)
|
|
['demo.tgz', 'index.html', 'loops_logo.png']
|
|
>>> sub.address
|
|
'...sub'
|
|
>>> sub.internalPath
|
|
'sub'
|
|
>>> sub.icon
|
|
'folder'
|
|
>>> sub.properties
|
|
{}
|
|
>>> sub.externalUrlInfo is None
|
|
True
|
|
|
|
A file object has additional attributes/methods.
|
|
|
|
>>> file = sub['demo.tgz']
|
|
>>> file.address
|
|
'...demo.tgz'
|
|
>>> file.internalPath
|
|
'sub/demo.tgz'
|
|
>>> file.icon
|
|
'tar'
|
|
>>> file.contentType
|
|
'application/x-tar'
|
|
>>> file.getSize()
|
|
432
|
|
|
|
>>> logo = sub['loops_logo.png']
|
|
>>> logo.internalPath
|
|
'sub/loops_logo.png'
|
|
>>> logo.icon
|
|
'image'
|
|
>>> logo.contentType
|
|
'image/png'
|
|
>>> logo.getImageSize()
|
|
(145, 42)
|
|
|
|
>>> html = top['index.html']
|
|
>>> html.internalPath
|
|
'index.html'
|
|
>>> html.contentType
|
|
'text/html'
|
|
>>> print html.data
|
|
<html>...
|
|
<img src="sub/loops_logo.png" />
|
|
<a href="sub">Subdirectory</a>
|
|
<a href="sub/demo.tgz">Demo</a>...
|
|
</html>...
|
|
>>> html.icon
|
|
'html'
|
|
|
|
|
|
MIMETypes
|
|
=========
|
|
|
|
>>> import mimetypes
|
|
>>> mimetypes.guess_type('test.xlsx')
|
|
('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', None)
|
|
>>> mimetypes.guess_type('test.xlsm')
|
|
('application/vnd.ms-excel.sheet.macroEnabled.12', None)
|