try:
import psycopg2 as psycopg
psyco = 2
except:
import psycopg
psyco = 1
import logging
from MPIWGHelper import unicodify, utf8ify
from xml import sax
from amara import saxtools
# namespace for FileMaker8
fm_ns = 'http://www.filemaker.com/fmpxmlresult'
# list of fields that are taken from XML and checked against DB as conflicts
#checkFields=['key','first_name','last_name','title','home_inst','current_work','e_mail2']
checkFields=['key','first_name','last_name','title','titles_new','home_inst','e_mail2']
def sql_quote(v):
# quote dictionary
quote_dict = {"\'": "''", "\\": "\\\\"}
for dkey in quote_dict.keys():
if v.find(dkey) >= 0:
v=quote_dict[dkey].join(v.split(dkey))
return "'%s'"%v
def SimpleSearch(curs,query, args=None):
"""execute sql query and return data"""
logging.debug("executing: "+query)
if psyco == 1:
query = query.encode("UTF-8")
#if args is not None:
# args = [ sql_quote(a) for a in args ]
#logging.debug(query)
#logging.debug(args)
curs.execute(query, args)
logging.debug("sql done")
try:
return curs.fetchall()
except:
return None
class xml_handler:
def __init__(self):
'''
SAX handler to import FileMaker XML file (FMPXMLRESULT format) into the table.
@param dsn: database connection string
@param table: name of the table the xml shall be imported into
'''
# set up parser
self.result={}
self.event = None
self.top_dispatcher = {
(saxtools.START_ELEMENT, fm_ns, u'METADATA'):
self.handle_meta_fields,
(saxtools.START_ELEMENT, fm_ns, u'RESULTSET'):
self.handle_data,
}
# connect database
self.dbIDs = {}
self.rowcnt = 0
self.newDataset = []
self.conflicts = []
self.ok = []
self.fieldNames=[]
return
def handle_meta_fields(self, end_condition):
dispatcher = {
(saxtools.START_ELEMENT, fm_ns, u'FIELD'):
self.handle_meta_field,
}
#First round through the generator corresponds to the
#start element event
logging.debug("START METADATA")
yield None
#delegate is a generator that handles all the events "within"
#this element
delegate = None
while not self.event == end_condition:
delegate = saxtools.tenorsax.event_loop_body(
dispatcher, delegate, self.event)
yield None
#Element closed. Wrap up
logging.debug("END METADATA")
self.update_fields = self.fieldNames
logging.debug("xml-fieldnames:"+repr(self.fieldNames))
# get list of fields in db table
#print "upQ: ", self.updQuery
#print "adQ: ", self.addQuery
return
def handle_meta_field(self, end_condition):
name = self.params.get((None, u'NAME'))
yield None
#Element closed. Wrap up
name=name.replace(" ","_")# make sure no spaces
self.fieldNames.append(name)
logging.debug("FIELD name: "+name)
return
def handle_data(self, end_condition):
dispatcher = {
(saxtools.START_ELEMENT, fm_ns, u'ROW'):
self.handle_row,
}
#First round through the generator corresponds to the
#start element event
logging.debug("START RESULTSET")
self.rowcnt = 0
yield None
#delegate is a generator that handles all the events "within"
#this element
delegate = None
while not self.event == end_condition:
delegate = saxtools.tenorsax.event_loop_body(
dispatcher, delegate, self.event)
yield None
#Element closed. Wrap up
logging.debug("END RESULTSET")
return
def handle_row(self, end_condition):
dispatcher = {
(saxtools.START_ELEMENT, fm_ns, u'COL'):
self.handle_col,
}
logging.debug("START ROW")
self.dataSet = {}
self.colIdx = 0
yield None
#delegate is a generator that handles all the events "within"
#this element
delegate = None
while not self.event == end_condition:
delegate = saxtools.tenorsax.event_loop_body(
dispatcher, delegate, self.event)
yield None
#Element closed. Wrap up
logging.debug("END ROW")
self.rowcnt += 1
# process collected row data
update=False
id_val=''
if self.result.has_key(self.dataSet['key']):
logging.error("Key %s not unique"%self.dataSet['key'])
self.result[self.dataSet['key']]=self.dataSet
return
def handle_col(self, end_condition):
dispatcher = {
(saxtools.START_ELEMENT, fm_ns, u'DATA'):
self.handle_data_tag,
}
#print "START COL"
yield None
#delegate is a generator that handles all the events "within"
#this element
delegate = None
while not self.event == end_condition:
delegate = saxtools.tenorsax.event_loop_body(
dispatcher, delegate, self.event)
yield None
#Element closed. Wrap up
#print "END COL"
self.colIdx += 1
return
def handle_data_tag(self, end_condition):
#print "START DATA"
content = u''
yield None
# gather child elements
while not self.event == end_condition:
if self.event[0] == saxtools.CHARACTER_DATA:
content += self.params
yield None
#Element closed. Wrap up
field = self.fieldNames[self.colIdx]
self.dataSet[field.lower()] = content
#print " DATA(", field, ") ", repr(content)
return
def checkImport(dsn,resultSet):
#now connect to the database
logging.info("dsn: %s"%dsn)
dbCon = psycopg.connect(dsn)
db = dbCon.cursor()
qstr="select key from personal_www"
results=SimpleSearch(db,qstr)
keys=[]
for x in results:
if x[0]:
keys.append(unicodify(x[0]))
#first step detect new entries and conflicts
new=[]
conflicts={}
for x in resultSet.iterkeys():
if x not in keys:
new.append(x)
else:
conflict,ret=checkForConflicts(db,resultSet[x],x)
if conflict:
conflicts[x]=ret
return new,conflicts
def importFMPXML(filename):
'''
method to import FileMaker XML file (FMPXMLRESULT format) into the table.
@param filename: xmlfile filename
'''
parser = sax.make_parser()
#The "consumer" is our own handler
consumer = xml_handler()
#Initialize Tenorsax with handler
handler = saxtools.tenorsax(consumer)
#Resulting tenorsax instance is the SAX handler
parser.setContentHandler(handler)
parser.setFeature(sax.handler.feature_namespaces, 1)
parser.parse(filename)
resultSet=consumer.result # xml now transformed into an dictionary
return resultSet
def checkForConflicts(cursor,dataSet,key):
ret=[]
fields=",".join(checkFields)
qstr="select %s from personal_www where key='%s'"%(fields,key)
sr=SimpleSearch(cursor,qstr)
if not sr:
return True, None
i=0
retValue=False
for checkField in checkFields:
dbValueR=sr[0][i]
if dbValueR:
dbValue=dbValueR.decode('utf-8')
else:
dbValue=""
if checkField in dataSet:
setValue=dataSet[checkField]
logging.debug( " %s %s %s %s"%(repr(key),checkField,repr(dbValue),repr(setValue)))
if dbValue.strip().rstrip()!=setValue.lstrip().rstrip():
ret.append((checkField,dbValue,setValue))
retValue=True
else:
logging.warning("unknown field %s in data file!"%checkField)
i+=1
return retValue,ret
##
## public static int main()
##
if __name__ == "__main__":
loglevel = logging.DEBUG
logging.basicConfig(level=loglevel,
format='%(asctime)s %(levelname)s %(message)s',
datefmt='%H:%M:%S')
resultSet=importFMPXML(filename="/Users/dwinter/Desktop/personalwww.xml")
news,conflicts=checkImport(dsn="dbname=personalwww host=xserve02a user=mysql password=e1nste1n", resultSet=resultSet)
print "new"
print len(news),news
print "-----------"
print "conflicts"
print conflicts
# update_fields = None
#
# if options.update_fields:
# update_fields = [string.strip(s) for s in options.update_fields.split(',')]
#
# parser = sax.make_parser()
# #The "consumer" is our own handler
# consumer = xml_handler(dsn=options.dsn,table=options.table,
# update_fields=update_fields,id_field=options.id_field,
# sync_mode=options.sync_mode)
# #Initialize Tenorsax with handler
# handler = saxtools.tenorsax(consumer)
# #Resulting tenorsax instance is the SAX handler
# parser.setContentHandler(handler)
# parser.setFeature(sax.handler.feature_namespaces, 1)
# parser.parse(options.filename)
#
#
# print "DONE!"
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