Add New chain for PortalTransform. These Chains allow to extract content.xml...

Add New chain for PortalTransform. These Chains allow to extract content.xml file from odt file (zip file)

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@24247 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5OOo/transforms/odt_to_xml.py

+from Products.PortalTransforms.interfaces import itransform
+from oood_commandtransform import OOOdCommandTransform, OOoDocumentDataStream
+from Products.ERP5.Document.File import _unpackData
+from zLOG import LOG
+from Products.ERP5OOo.OOoUtils import OOoBuilder
+import re
+
+class OdtToXml:
+  """Transforms ODT to Doc by using oood"""
+
+  __implements__ = itransform
+
+  __name__ = 'odt_to_xml'
+  inputs   = ('application/vnd.oasis.opendocument.text',)
+  output = 'text/xml'
+
+  tranform_engine = OOOdCommandTransform.__module__
+
+  def name(self):
+    return self.__name__
+
+  def __getattr__(self, attr):
+    if attr == 'inputs':
+      return self.config['inputs']
+    if attr == 'output':
+      return self.config['output']
+    raise AttributeError(attr)
+
+  def convert(self, orig, data, cache=None, filename=None, context=None, **kwargs):
+    data = _unpackData(orig)
+    doc = OOOdCommandTransform(context, filename, data, self.inputs[0])
+    doc.convert()
+    builder = OOoBuilder(doc)
+    content = builder.extract('content.xml')
+    if cache is not None:
+      cache.setData(content)
+      return cache
+    else:
+      stream = OOoDocumentDataStream()
+      stream.setData(content)
+      return stream
+
+def register():
+  return OdtToXml()