| Acspy.Util.XmlObjectifier | index /alma/ACS-2016.6/ACSSW/lib/python/site-packages/Acspy/Util/XmlObjectifier.py |
This module is used to create native Python objects representing an XML document
rendering the elements into a hierarchical tree. Name spaces can optionally be
mapped into the element names by specifying 'mapNameSpaces = 1'. Leading
characters can be omitted in the name space mapping using the 'skipChars'
argument.
Characters that are not allowed in Python names ('.', '-', '/', ':') are mapped
to '_'.
The resulting Python object can be modified and serialized into XML again using
the 'writexml' method.
Example usage:
import XmlObjectifier
xmlObject = XmlObjectifier.XmlObject(xmlString = <XML string>,
skipChars = <string>)
or
xmlObject = XmlObjectifier.XmlObject(fileName = '<file name>',
skipChars = <string>)
This example XML document:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!-- edited with XMLSPY v5 U (http://www.xmlspy.com) by D. Muders (MPIfR) -->
<TelCalResult xmlns="Alma/TelCalResult"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="Alma/TelCalResult/TelCalResult-single.xsd">
<TelCalResultEntity entityId="2718281828" entityIdEncrypted=""
entityVersion="0.1"/>
<TelCalResultRef entityId="2718281827"/>
<SchedBlockRef entityId="31415926534"/>
<TelCalResultDetail>
<ResultKind>FocusOffset</ResultKind>
<ScanID>1789</ScanID>
<NumAntennas>2</NumAntennas>
<AntennaID>64</AntennaID>
<AntennaID>42</AntennaID>
<FocusOffset>-0.25</FocusOffset>
<FocusOffset>-0.34</FocusOffset>
</TelCalResultDetail>
</TelCalResult>
can then be navigated in the Python object like this:
#!/usr/bin/env python
import XmlObjectifier
def printInfo(focusResult):
scanID = focusResult.TelCalResult.TelCalResultDetail.ScanID.getValue()
kind = focusResult.TelCalResult.TelCalResultDetail.ResultKind.getValue()
numAnts = focusResult.TelCalResult.TelCalResultDetail.NumAntennas.getValue()
print 'This is a %s result entity. Scan ID: %d. Number of antennas: %d' % (kind, scanID, numAnts)
print
for ant in xrange(numAnts):
antID = focusResult.TelCalResult.TelCalResultDetail.AntennaID[ant].getValue()
focusOffset = focusResult.TelCalResult.TelCalResultDetail.FocusOffset[ant].getValue()
print 'Antenna #%d focus offset: %.1f' % (antID, focusOffset)
# Objectify XML
focusResult = XmlObjectifier.XmlObject(fileName = 'FocusResult.xml')
# Print object summary
print 'Original focus result:
'
printInfo(focusResult)
# Optionally modify elements
focusResult.TelCalResult.TelCalResultDetail.ScanID.setValue(1790)
focusResult.TelCalResult.TelCalResultDetail.AntennaID[0].setValue(24)
focusResult.TelCalResult.TelCalResultDetail.FocusOffset[0].setValue(0.3)
focusResult.TelCalResult.TelCalResultDetail.AntennaID[1].setValue(25)
focusResult.TelCalResult.TelCalResultDetail.FocusOffset[1].setValue(0.5)
# Print object summary
print '
New focus result:
'
printInfo(focusResult)
# Write XML to a new file
f = open('FocusResultNew.xml', 'w+')
focusResult.writexml(f, '')
f.close()
| Modules | ||||||
| ||||||
| Classes | ||||||||||||||||||||||||
| ||||||||||||||||||||||||
| Functions | ||
| ||