Add new client side XML abstraction layer

git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@2061 ce84e21b-d406-0410-9b95-82705330c041

2 files changed, 22 insertions, 1 deletions

diff --git a/src/lib/Client/XML.py b/src/lib/Client/XML.py
new file mode 100644
index 000000000..356886558
--- /dev/null
+++ b/src/lib/Client/XML.py
@@ -0,0 +1,21 @@
+'''XML lib compatibility layer for the Bcfg2 client'''
+__revision__ = '$Revision$'
+
+# library will use lxml, then builtin xml.etree, then ElementTree
+
+try:
+    from lxml.etree import Element, SubElement, tostring
+    from lxml.etree import XMLSyntaxError as ParseError
+except ImportError:
+    # lxml not available 
+    try:
+        from xml.etree.ElementTree import Element, XML, tostring
+        from xml.parsers.expat import ExpatError as ParseError
+    except ImportError:
+        try:
+            from elementtree.ElementTree import Element, XML, tostring
+            from xml.parsers.expat import ExpatError as ParseError
+        except ImportError:
+            print "Failed to load lxml, xml.etree and elementtree.ElementTree"
+            print "Cannot continue"
+            raise SystemExit, 1
diff --git a/src/lib/Client/__init__.py b/src/lib/Client/__init__.py
index bfdbc0e98..f7ba1a537 100644
--- a/src/lib/Client/__init__.py
+++ b/src/lib/Client/__init__.py
@@ -1,4 +1,4 @@
 '''This contains all Bcfg2 Client modules'''
 __revision__ = '$Revision$'
 
-__all__ = ["Proxy", "Toolset", "Debian", "Solaris", "Redhat", "Gentoo"]
+__all__ = ["Proxy", "Toolset", "Debian", "Solaris", "Redhat", "Gentoo", "XML"]