dea27d7482
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@3959 fd906abe-77d9-0310-91a1-e0d9ade77398
121 lines
2.8 KiB
Text
121 lines
2.8 KiB
Text
=========================================
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Integrating objects from external systems
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=========================================
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Integration of external sources.
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($Id$)
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Getting started
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===============
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Let's do some basic set up
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>>> from zope import component
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>>> from cybertools.integrator.tests.test_filesystem import testDir
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>>> from cybertools.integrator.filesystem import ContainerFactory, FileFactory
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>>> from cybertools.integrator.interfaces import IContainerFactory
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>>> component.provideUtility(ContainerFactory(), name='filesystem')
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>>> component.provideUtility(FileFactory(), name='filesystem')
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Accessing Objects in the Filesystem
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===================================
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We access the top-level object (a directory) by calling the container (proxy)
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factory with the address (path) leading to the directory.
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>>> top = component.getUtility(IContainerFactory, name='filesystem')(testDir)
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This top-level object is a container with some sub-objects, that may be
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containers themeselves or terminal objects (items or files).
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>>> sorted(top)
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['index.html', 'sub']
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A proxy provides a set of attributes that may be used for viewing the
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object or navigating to it.
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>>> top.address
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'...data'
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>>> top.internalPath
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''
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>>> top.icon
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'folder'
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>>> top.properties
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{}
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>>> top.title
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'data'
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The external URL information may be used for directly linking to the
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external object - in the case of filesystem objects this is not possible
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in a general way, so this attribute is always None.
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>>> top.externalUrlInfo is None
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True
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Let's now have a look at the sub-objects found in the top-level container.
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>>> sub = top['sub']
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>>> sorted(sub)
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['demo.tgz', 'index.html', 'loops_logo.png']
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>>> sub.address
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'...sub'
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>>> sub.internalPath
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'sub'
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>>> sub.icon
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'folder'
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>>> sub.properties
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{}
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>>> sub.externalUrlInfo is None
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True
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A file object has additional attributes/methods.
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>>> file = sub['demo.tgz']
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>>> file.address
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'...demo.tgz'
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>>> file.internalPath
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'sub/demo.tgz'
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>>> file.icon
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'tar'
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>>> file.contentType
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'application/x-tar'
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>>> file.getSize()
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432L
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>>> logo = sub['loops_logo.png']
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>>> logo.internalPath
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'sub/loops_logo.png'
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>>> logo.icon
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'image'
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>>> logo.contentType
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'image/png'
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>>> logo.getImageSize()
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(145, 42)
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>>> html = top['index.html']
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>>> html.internalPath
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'index.html'
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>>> html.contentType
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'text/html'
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>>> print html.data
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<html>...
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<img src="sub/loops_logo.png" />
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<a href="sub">Subdirectory</a>
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<a href="sub/demo.tgz">Demo</a>...
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</html>...
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>>> html.icon
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'html'
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MIMETypes
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=========
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>>> import mimetypes
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>>> mimetypes.guess_type('test.xlsx')
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('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', None)
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>>> mimetypes.guess_type('test.xlsm')
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('application/vnd.ms-excel.sheet.macroEnabled.12', None)
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