python 注释xml的元素

use xml.dom.minidom 注释xml元素和去除xml注释。

code is: 

#!/usr/bin/env python
from xml.dom import minidom
import sys

'''
get the first web system element, like:
    <subsystem xmlns="urn:jboss:domain:web:...">
Note, should have only one web system element, if have multiple, the other will be ignored.
'''
def getWebSystemElement(xmlPath):
    doc = minidom.parse(xmlPath).documentElement
    subsystems = doc.getElementsByTagName('subsystem')
    for subsystem in subsystems:
        if subsystem.getAttribute("xmlns").startswith("urn:jboss:domain:web:"):
            return subsystem;

'''
change to https type
uncomment HTTPS, make HTTPS effective
comment HTTP, make HTTP uneffective
'''
def changeToHttps(webSystem):

    # comment the HTTP
    for node in webSystem.childNodes:
        if node.nodeType == node.ELEMENT_NODE and node.nodeName == "connector" and node.getAttribute("name") == "http":
            comment = node.ownerDocument.createComment(node.toxml())
            node.parentNode.replaceChild(comment, node)
        else:
            pass

    # uncomment the HTTPS
    for node in webSystem.childNodes:
        if(node.nodeType == node.COMMENT_NODE):
            # parse the comment content to element
            element = minidom.parseString(node.data).firstChild

            elements = minidom.parseString(node.data)
            for element in elements.childNodes:
                if element.nodeType == node.ELEMENT_NODE and element.tagName == "connector" and element.getAttribute("name") == "https":
                    node.parentNode.replaceChild(element, node)
        else:
            pass

'''
change to http type
uncomment HTTP, make HTTP effective
comment HTTPS,  make HTTPS uneffective
'''
def changeToHttp(webSystem):

    # comment the HTTPS
    for node in webSystem.childNodes:
        if node.nodeType == node.ELEMENT_NODE and node.tagName == "connector" and node.getAttribute("name") == "https":
            # create commented httpsElement
            comment = node.ownerDocument.createComment(node.toxml())
            node.parentNode.replaceChild(comment, node)
        else:
            pass

    # uncomment the HTTP
    for node in webSystem.childNodes:
        if node.nodeType == node.COMMENT_NODE:
            # parse the content in the comment to httpsElement
            elements = minidom.parseString(node.data)
            for element in elements.childNodes:
                if element.nodeType == node.ELEMENT_NODE and element.tagName == "connector" and element.getAttribute("name") == "http":
                    node.parentNode.replaceChild(element, node)
        else:
            pass

def switchWithException(inputPath, outputPath, hType):
    if hType == "http":
        webSystem = getWebSystemElement(inputPath)
        changeToHttp(webSystem)
        with open(outputPath, 'w') as wf:
            c = webSystem.ownerDocument.toxml()
            wf.write(c)
        return True
    elif hType == "https":
        webSystem = getWebSystemElement(inputPath)
        changeToHttps(webSystem)
        with open(outputPath, 'w') as wf:
            c = webSystem.ownerDocument.toxml()
            wf.write(c)
        return True
    else:
        print "Type " + hType + " should be http or https"
        return False

'''
switch the http/https type in the standalone.xml
inputPath: the input path of standalone.xml, include the file name
outputPath: the output path of standalone.xml, include the file name
'''
def switch(inputPath, outputPath, hType):
    try:
        return switchWithException(inputPath, outputPath, hType)
    except BaseException as e:
        print e
        return False

'''
./switch_http_htts.py inputPath outputPath <http or https>
'''
if __name__ == '__main__':
    if len(sys.argv) != 4 :
        print 'Invalid length of parameter list'
        sys.exit(1)
    if switch(sys.argv[1], sys.argv[2],sys.argv[3]):
        sys.exit(0)
    else:
        sys.exit(1)