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authorNarayan Desai <desai@mcs.anl.gov>2008-07-22 01:41:51 +0000
committerNarayan Desai <desai@mcs.anl.gov>2008-07-22 01:41:51 +0000
commitf400c03da3da541b291a7051b30c320764f6d200 (patch)
tree7cf5606a1bdbf720d2f12abf76ba00b555466c44 /src/lib/Server/Statistics.py
parent0bb580230b18672fbfcb6f9f3fcd115e8b67448a (diff)
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move xml statistics over to new typed-plugin system (enables direct-to-django statistics plugin)
git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@4817 ce84e21b-d406-0410-9b95-82705330c041
Diffstat (limited to 'src/lib/Server/Statistics.py')
-rw-r--r--src/lib/Server/Statistics.py104
1 files changed, 0 insertions, 104 deletions
diff --git a/src/lib/Server/Statistics.py b/src/lib/Server/Statistics.py
deleted file mode 100644
index 7111113aa..000000000
--- a/src/lib/Server/Statistics.py
+++ /dev/null
@@ -1,104 +0,0 @@
-'''This file manages the statistics collected by the BCFG2 Server'''
-__revision__ = '$Revision$'
-
-from lxml.etree import XML, SubElement, Element, XMLSyntaxError
-from time import asctime, localtime, time, strptime, mktime
-
-import logging, lxml.etree, os
-
-class Statistics(object):
- '''Manages the memory and file copy of statistics collected about client runs'''
- __min_write_delay__ = 0
-
- def __init__(self, filename):
- self.filename = filename
- self.element = Element('Dummy')
- self.dirty = 0
- self.lastwrite = 0
- self.logger = logging.getLogger('Bcfg2.Server.Statistics')
- self.ReadFromFile()
-
- def WriteBack(self, force=0):
- '''Write statistics changes back to persistent store'''
- if (self.dirty and (self.lastwrite + self.__min_write_delay__ <= time()) ) \
- or force:
- #syslog(LOG_INFO, "Statistics: Updated statistics.xml")
- try:
- fout = open(self.filename + '.new', 'w')
- except IOError, ioerr:
- self.logger.error("Failed to open %s for writing: %s" % (self.filename + '.new', ioerr))
- else:
- fout.write(lxml.etree.tostring(self.element, encoding='UTF-8', xml_declaration=True))
- fout.close()
- os.rename(self.filename + '.new', self.filename)
- self.dirty = 0
- self.lastwrite = time()
-
- def ReadFromFile(self):
- '''Reads current state regarding statistics'''
- try:
- fin = open(self.filename, 'r')
- data = fin.read()
- fin.close()
- self.element = XML(data)
- self.dirty = 0
- #syslog(LOG_INFO, "Statistics: Read in statistics.xml")
- except (IOError, XMLSyntaxError):
- self.logger.error("Creating new statistics file %s"%(self.filename))
- self.element = Element('ConfigStatistics')
- self.WriteBack()
- self.dirty = 0
-
- def updateStats(self, xml, client):
- '''Updates the statistics of a current node with new data'''
-
- # Current policy:
- # - Keep anything less than 24 hours old
- # - Keep latest clean run for clean nodes
- # - Keep latest clean and dirty run for dirty nodes
- newstat = xml.find('Statistics')
-
- if newstat.get('state') == 'clean':
- node_dirty = 0
- else:
- node_dirty = 1
-
- # Find correct node entry in stats data
- # The following list comprehension should be guarenteed to return at
- # most one result
- nodes = [elem for elem in self.element.findall('Node') if elem.get('name') == client]
- nummatch = len(nodes)
- if nummatch == 0:
- # Create an entry for this node
- node = SubElement(self.element, 'Node', name=client)
- elif nummatch == 1 and not node_dirty:
- # Delete old instance
- node = nodes[0]
- [node.remove(elem) for elem in node.findall('Statistics') if self.isOlderThan24h(elem.get('time'))]
- elif nummatch == 1 and node_dirty:
- # Delete old dirty statistics entry
- node = nodes[0]
- [node.remove(elem) for elem in node.findall('Statistics') if (elem.get('state') == 'dirty' and self.isOlderThan24h(elem.get('time')))]
- else:
- # Shouldn't be reached
- self.logger.error("Duplicate node entry for %s"%(client))
-
- # Set current time for stats
- newstat.set('time', asctime(localtime()))
-
- # Add statistic
- node.append(newstat)
-
- # Set dirty
- self.dirty = 1
- self.WriteBack()
-
-
- def isOlderThan24h(self, testTime):
- '''Helper function to determine if <time> string is older than 24 hours'''
- now = time()
- utime = mktime(strptime(testTime))
- secondsPerDay = 60*60*24
-
- return (now-utime) > secondsPerDay
-