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# Copyright (C) 2011 Gluster, Inc. <http://www.gluster.com>
# This file is part of Gluster Management Gateway (GlusterMG).
#
# GlusterMG is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published
# by the Free Software Foundation; either version 3 of the License,
# or (at your option) any later version.
#
# GlusterMG is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see
# <http://www.gnu.org/licenses/>.
#
import xml
import xml.parsers.expat
import xml.dom.minidom as MDOM
import os
import Globals
import Utils
XML_STRING = 0
XML_FILE = 1
class XDOM:
_domObj = None
def __init__(self):
self._domObj = MDOM.Document()
return
@classmethod
def getText(self, nodeList):
rc = ""
for node in nodeList:
if node.nodeType == node.TEXT_NODE:
rc = rc + node.data
return rc
def parseString(self, requestString):
try:
self._domObj = MDOM.parseString(requestString)
except xml.parsers.expat.ExpatError, e:
Utils.log("XML string parse error: %s" % str(e))
return False
return True
def parseFile(self, fileName):
try:
self._domObj = MDOM.parse(fileName)
except IOError, e:
Utils.log("error reading file: %s" % str(e))
return False
except xml.parsers.expat.ExpatError, e:
Utils.log("XML file %s parse error: %s" % (fileName, str(e)))
return False
return True
def setDomObj(self, dom):
if dom and type(dom) != type([]):
self._domObj = dom
return True
return False
def createTag(self, tag, text=None):
if not self._domObj:
return None
if tag == None:
return None
tagE = self._domObj.createElement(str(tag))
if text:
tagEText = self._domObj.createTextNode(str(text))
tagE.appendChild(tagEText)
return tagE
def addTag(self, tag):
if not self._domObj:
return False
if not tag:
return False
self._domObj.appendChild(tag)
return True
def createTagRoute(self, tagRoute, text=None):
if not tagRoute:
return False
tagList = tagRoute.split(".")
tag = None
previousTag = None
for tagName in tagList[:-1]:
newTag = self.createTag(tagName, None)
if not tag:
tag = newTag
previousTag = newTag
continue
previousTag.appendChild(newTag)
previousTag = newTag
if previousTag:
previousTag.appendChild(self.createTag(tagList[-1], text))
else:
tag = self.createTag(tagList[-1], text)
return tag
def appendTagRoute(self, tagRoute, value=None):
if not self._domObj:
return False
if not tagRoute:
return False
parentTagE = self._domObj
tagNameList = tagRoute.split(".")
newTagRoute = tagNameList.pop(-1)
for i in range(len(tagNameList), 0, -1):
tagE = self.getElementsByTagRoute(".".join(tagNameList[:i]))
if tagE:
parentTagE = tagE[0]
break
newTagRoute = tagNameList[i-1] + "." + newTagRoute
newTagE = self.createTagRoute(newTagRoute, value)
if not newTagE:
return False
try:
parentTagE.appendChild(newTagE)
except xml.dom.HierarchyRequestErr, e:
Utils.log("error occured. %s" + str(e))
return False
return True
def setTextByTagRoute(self, tagRoute, tagValue):
if not self._domObj:
return None
if not tagRoute:
return None
tagE = self.getElementsByTagRoute(tagRoute)
if not tagE:
return False
parentTagE = self.getElementsByTagRoute(".".join(tagRoute.split(".")[:-1]))
if not parentTagE:
return False
parentTagE[0].childNodes.remove(tagE[0])
parentTagE[0].appendChild(self.createTag(tagRoute.split(".")[-1], tagValue))
return True
def getElementsByTagRoute(self, tagRoute):
if not self._domObj:
return None
if not tagRoute:
return None
x = None
for tag in tagRoute.split("."):
if x is None:
x = self._domObj.getElementsByTagName(tag)
continue
if x == []:
break
x = x[0].getElementsByTagName(tag)
return x
def getTextByTagRoute(self, tagRoute):
if not self._domObj:
return None
x = self.getElementsByTagRoute(tagRoute)
if x:
return self.getText(x[0].childNodes)
return None
def getElementsByTagName(self, name):
if not self._domObj:
return None
return self._domObj.getElementsByTagName(name)
def writexml(self, fileName, indent="", addindent="", newl=""):
if not self._domObj:
return None
try:
fp = open(fileName, "w")
self._domObj.writexml(fp, indent, addindent, newl)
fp.close()
return True
except IOError, e:
return False
def toString(self, indent=" ", newl="\n", encoding = None):
if not self._domObj:
return None
return self._domObj.toprettyxml(indent, newl, encoding)
def toxml(self, encoding = None):
if not self._domObj:
return None
return self._domObj.toxml(encoding)
def toprettyxml(self, indent=" ", newl="\n", encoding = None):
return self.toString(indent, newl, encoding)
def createResponseTag(self):
responseTag = self._domObj.createElement("response")
return responseTag
##--end of XDOM
class RequestXml(XDOM):
def __init__(self, requestString, type=None):
if None == requestString:
XDOM.__init__(self)
return
try:
if None == type:
if os.path.isfile(requestString):
self._domObj = MDOM.parse(requestString)
else:
self._domObj = MDOM.parseString(requestString)
elif XML_FILE == type:
self._domObj = MDOM.parse(requestString)
elif XML_STRING == type:
self._domObj = MDOM.parseString(requestString)
except IOError, e:
XDOM.__init__(self)
except xml.parsers.expat.ExpatError, e:
XDOM.__init__(self)
##--end of RequestXML
class ResponseXml(XDOM):
_responseTag = None
def __init__(self):
XDOM.__init__(self)
self._responseTag = self.createResponseTag()
self._domObj.appendChild(self._responseTag)
@classmethod
def errorResponse(self, message):
if not self.responseTag:
return False
self.appendTagRoute("status.code", "-1");
self.appendTagRoute("status.message", message)
def append(self, tagName, tagValue=None):
if not self._responseTag:
return False
tag = self.createTag(tagName, tagValue)
if tag:
self._responseTag.appendChild(tag)
return True
return False
def appendTag(self, tag):
if not tag:
return False
if not self._responseTag:
return False
self._responseTag.appendChild(tag)
return True
def appendTagRoute(self, tagRoute, value=None):
if not self._responseTag:
return None
if not tagRoute:
return None
parentTagE = self._responseTag
tagNameList = tagRoute.split(".")
newTagRoute = tagNameList.pop(-1)
for i in range(len(tagNameList), 0, -1):
tagE = self.getElementsByTagRoute(".".join(["response"] + tagNameList[:i]))
if tagE:
parentTagE = tagE[0]
break
newTagRoute = tagNameList[i-1] + "." + newTagRoute
newTagE = self.createTagRoute(newTagRoute, value)
if not newTagE:
return None
try:
parentTagE.appendChild(newTagE)
except xml.dom.HierarchyRequestErr, e:
Utils.log("error occured. %s" + str(e))
return None
return newTagE
def appendTagRouteOld(self, tagRoute, value=None):
if not self._responseTag:
return False
if not tagRoute:
return False
parentTagE = self._responseTag
tagNameList = tagRoute.split(".")
newTagRoute = tagNameList.pop(-1)
for i in range(len(tagNameList), 0, -1):
tagE = self.getElementsByTagRoute(".".join(["response"] + tagNameList[:i]))
if tagE:
parentTagE = tagE[0]
break
newTagRoute = tagNameList[i-1] + "." + newTagRoute
newTagE = self.createTagRoute(newTagRoute, value)
if not newTagE:
return False
try:
parentTagE.appendChild(newTagE)
except xml.dom.HierarchyRequestErr, e:
Utils.log("error occured. %s" + str(e))
return False
return True
##--end of ResponseXml
def test():
rs = ResponseXml()
rs.appendTagRoute("status.code", "0");
rs.appendTagRoute("status.message", "SUCCESS")
serverTag = rs.appendTagRoute("server.name", "Server1")
networkInterfaces = rs.appendTagRoute("server.networkInterfaces", None)
networkTag = rs.createTag("networkInterface", None)
networkTag.appendChild(rs.createTag("name", "interface1"))
networkTag.appendChild(rs.createTag("ipaddress", "192.168.1.40"))
networkInterfaces.appendChild(networkTag)
networkTag = rs.createTag("networkInterface", None)
networkTag.appendChild(rs.createTag("name", "interface2"))
networkTag.appendChild(rs.createTag("ipaddress", "192.168.1.41"))
networkInterfaces.appendChild(networkTag)
print rs.toprettyxml()
#test()
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