/
exportreportdata.py
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/
exportreportdata.py
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# Copyright 2011-2012 Ent. Services Development Corporation LP
#
# Redistribution and use of this software in source and binary forms,
# with or without modification, are permitted provided that the
# following conditions are met:
#
# Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
from StringIO import StringIO
from eucadmin.patched_gzip import GzipFile
import zlib
from boto.roboto.param import Param
from eucadmin.reportsrequest import ReportsRequest, ReportsServiceClass
from xml.sax.saxutils import XMLGenerator, XMLFilterBase
import os, sys, xml.sax, xml.sax.handler, boto
class GzipReportsServiceClass(ReportsServiceClass):
def build_base_http_request(self, method, path, auth_path,
params=None, headers=None, data='', host=None):
headers = { 'Accept-Encoding': 'gzip' }
return super(GzipReportsServiceClass, self)\
.build_base_http_request( method, path, auth_path, params, headers, data, host )
class ExportReportData(ReportsRequest):
ServiceClass = GzipReportsServiceClass
Description = 'Export reporting data'
Params = [
Param(name='Start',
short_name='s', long_name='start-date',
ptype='datetime',
doc='the inclusive start date for the exported data (e.g. 2012-08-19)'),
Param(name='End',
short_name='e', long_name='end-date',
ptype='datetime',
doc='the exclusive end date for the exported data (e.g. 2012-08-26)'),
Param(name='Dependencies',
short_name='d', long_name='dependencies',
ptype='boolean',
doc='include event dependencies from outside the requested period'),
Param(name='Force',
short_name='F', long_name='force',
ptype='boolean', request_param=False,
doc='overwrite output file if it exists'),
]
Args = [
Param(name='File', long_name='file',
ptype='string', optional=True, request_param=False,
doc='optional path to the resulting reporting data export file'),
]
def check_export_file(self):
if self.file is not None and os.path.exists(self.file) and not self.force:
msg = 'file %s already exists, ' % self.file
msg += 'please remove and try again'
raise IOError(msg)
def cli_formatter(self, data):
if self.file is not None:
print 'Exported data to ' + self.file
# Override send to handle large response streaming and compression
def send(self, verb='GET', **args):
self.process_args(**args)
self.process_filters()
conn = self.get_connection(**self.connection_args)
self.http_response = conn.make_request(self.name(),
self.request_params,
verb=verb)
if self.http_response.status == 200:
# Handle content encoding
if self.http_response.getheader( 'Content-Encoding', 'identity' ) == 'gzip':
source = GzipFile(fileobj=self.http_response)
else:
source = self.http_response
# Process response without reading it all into memory
if self.file is not None:
f = open( self.file, 'w')
self.body = self.write_export( f, source )
f.close()
else:
self.body = self.write_export( sys.stdout, source )
# Process non-export content in regular way
boto.log.debug(self.body)
self.aws_response = boto.jsonresponse.Element(list_marker=self.list_markers,
item_marker=self.item_markers)
h = boto.jsonresponse.XmlHandler(self.aws_response, self)
self.parse(h, StringIO(self.body))
return self.aws_response
else:
boto.log.error('%s %s' % (self.http_response.status,
self.http_response.reason))
boto.log.error('%s' % self.body)
raise conn.ResponseError(self.http_response.status,
self.http_response.reason,
self.body)
def parse(self, handler, data ):
parser = xml.sax.make_parser()
parser.setFeature(xml.sax.handler.feature_namespaces, 1)
parser.setContentHandler(handler)
parser.setErrorHandler(handler)
input_source = xml.sax.InputSource()
input_source.setByteStream(data)
parser.parse(input_source)
def write_export(self, file, source):
generator = ExportExtractor(file)
self.parse(generator, source)
return generator.getReply()
def process_args(self, **args):
super(ExportReportData, self).process_args( **args )
self.file = self.args['file']
self.force = self.args['force']
self.process_date_param('Start')
self.process_date_param('End')
self.check_export_file()
class ExportExtractor(XMLFilterBase):
def __init__(self, file):
XMLFilterBase.__init__(self)
self.generator = XMLGenerator(file, 'UTF-8')
self.generator.startPrefixMapping(u'', u'http://www.eucalyptus.com/ns/reporting/export/2012-08-24/')
self.replyData = StringIO()
self.replyGenerator = XMLGenerator( self.replyData, 'UTF-8' )
self.switchTarget( self.replyGenerator )
def startDocument(self):
self.generator.startDocument()
XMLFilterBase.startDocument(self)
def endElementNS(self, name, qname):
XMLFilterBase.endElementNS(self, name, qname)
namespace, element = name
if namespace == u'http://www.eucalyptus.com/ns/reporting/export/2012-08-24/' and element == u'Export':
self.switchTarget( self.replyGenerator )
def startElementNS(self, name, qname, attrs):
namespace, element = name
if namespace == u'http://www.eucalyptus.com/ns/reporting/export/2012-08-24/' and element == u'Export':
self.switchTarget( self.generator )
XMLFilterBase.startElementNS(self, name, qname, attrs)
def switchTarget(self, target):
self._cont_handler = target
self._dtd_handler = target
self._ent_handler = target
self._err_handler = target
def getReply(self):
return self.replyData.getvalue()