def getMetadataInternal(self, params={}):
try:
lower = 0
upper = 0
retmap = {}
sr_info_map = {}
ret_vdi_info = {}
length = getMetadataLength(self.fd)
min_blk_size = get_min_blk_size_wrapper(self.fd)
# Read in the metadata fil
metadataxml = ''
metadataxml = xs_file_read_wrapper(self.fd, 0, length,
min_blk_size)
# At this point we have the complete metadata in metadataxml
offset = SECTOR_SIZE + len(XML_HEADER)
sr_info = metadataxml[offset:SECTOR_SIZE * 4]
offset = SECTOR_SIZE * 4
sr_info = sr_info.replace('\x00', '')
parsable_metadata = '%s<%s>%s</%s>' % (
XML_HEADER, metadata.XML_TAG, sr_info, metadata.XML_TAG)
retmap['sr_info'] = metadata._parseXML(parsable_metadata)
# At this point we check if an offset has been passed in
if params.has_key('offset'):
upper = getBlockAlignedRange(min_blk_size, params['offset'], \
0)[1]
else:
upper = length
# Now look at the VDI objects
while offset < upper:
vdi_info = metadataxml[offset:offset +
(SECTOR_SIZE *
self.VDI_INFO_SIZE_IN_SECTORS)]
vdi_info = vdi_info.replace('\x00', '')
parsable_metadata = '%s<%s>%s</%s>' % (
XML_HEADER, metadata.XML_TAG, vdi_info, metadata.XML_TAG)
vdi_info_map = metadata._parseXML(parsable_metadata)[VDI_TAG]
vdi_info_map[OFFSET_TAG] = offset
if not params.has_key('includeDeletedVdis') and \
vdi_info_map[VDI_DELETED_TAG] == '1':
offset += SECTOR_SIZE * self.VDI_INFO_SIZE_IN_SECTORS
continue
if params.has_key('indexByUuid'):
ret_vdi_info[vdi_info_map[UUID_TAG]] = vdi_info_map
else:
ret_vdi_info[offset] = vdi_info_map
if params.has_key('vdi_uuid'):
if vdi_info_map[UUID_TAG] == params['vdi_uuid']:
retmap['offset'] = offset
(lower, upper) = \
getBlockAlignedRange(min_blk_size, offset, \
SECTOR_SIZE * self.VDI_INFO_SIZE_IN_SECTORS)
elif params.has_key('firstDeleted'):
if vdi_info_map[VDI_DELETED_TAG] == '1':
retmap['foundDeleted'] = 1
retmap['offset'] = offset
(lower, upper) = \
getBlockAlignedRange(min_blk_size, offset, \
SECTOR_SIZE * self.VDI_INFO_SIZE_IN_SECTORS)
offset += SECTOR_SIZE * self.VDI_INFO_SIZE_IN_SECTORS
retmap['lower'] = lower
retmap['upper'] = upper
retmap['vdi_info'] = ret_vdi_info
return retmap
except Exception, e:
util.SMlog("Exception getting metadata with params" \
"%s. Error: %s" % (params, str(e)))
raise
def getMetadataInternal(self, params = {}):
try:
lower = 0; upper = 0
retmap = {}; sr_info_map = {}; ret_vdi_info = {}
length = getMetadataLength(self.fd)
min_blk_size = get_min_blk_size_wrapper(self.fd)
# Read in the metadata fil
metadataxml = ''
metadataxml = xs_file_read_wrapper(self.fd, 0, length, min_blk_size)
# At this point we have the complete metadata in metadataxml
offset = SECTOR_SIZE + len(XML_HEADER)
sr_info = metadataxml[offset: SECTOR_SIZE * 4]
offset = SECTOR_SIZE * 4
sr_info = sr_info.replace('\x00','')
parsable_metadata = '%s<%s>%s</%s>' % (XML_HEADER, metadata.XML_TAG,
sr_info, metadata.XML_TAG)
retmap['sr_info'] = metadata._parseXML(parsable_metadata)
# At this point we check if an offset has been passed in
if params.has_key('offset'):
upper = getBlockAlignedRange(min_blk_size, params['offset'], \
0)[1]
else:
upper = length
# Now look at the VDI objects
while offset < upper:
vdi_info = metadataxml[offset:
offset +
(SECTOR_SIZE * self.VDI_INFO_SIZE_IN_SECTORS)]
vdi_info = vdi_info.replace('\x00','')
parsable_metadata = '%s<%s>%s</%s>' % (XML_HEADER, metadata.XML_TAG,
vdi_info, metadata.XML_TAG)
vdi_info_map = metadata._parseXML(parsable_metadata)[VDI_TAG]
vdi_info_map[OFFSET_TAG] = offset
if not params.has_key('includeDeletedVdis') and \
vdi_info_map[VDI_DELETED_TAG] == '1':
offset += SECTOR_SIZE * self.VDI_INFO_SIZE_IN_SECTORS
continue
if params.has_key('indexByUuid'):
ret_vdi_info[vdi_info_map[UUID_TAG]] = vdi_info_map
else:
ret_vdi_info[offset] = vdi_info_map
if params.has_key('vdi_uuid'):
if vdi_info_map[UUID_TAG] == params['vdi_uuid']:
retmap['offset'] = offset
(lower, upper) = \
getBlockAlignedRange(min_blk_size, offset, \
SECTOR_SIZE * self.VDI_INFO_SIZE_IN_SECTORS)
elif params.has_key('firstDeleted'):
if vdi_info_map[VDI_DELETED_TAG] == '1':
retmap['foundDeleted'] = 1
retmap['offset'] = offset
(lower, upper) = \
getBlockAlignedRange(min_blk_size, offset, \
SECTOR_SIZE * self.VDI_INFO_SIZE_IN_SECTORS)
offset += SECTOR_SIZE * self.VDI_INFO_SIZE_IN_SECTORS
retmap['lower'] = lower
retmap['upper'] = upper
retmap['vdi_info'] = ret_vdi_info
return retmap
except Exception, e:
util.SMlog("Exception getting metadata with params" \
"%s. Error: %s" % (params, str(e)))
raise