def introspect_global_indexes(raw_indexes):
"""
Given a raw index structure back from a DynamoDB response, parse
out & build the high-level Python objects that represent them.
"""
indexes = []
for field in raw_indexes:
index_klass = GlobalAllIndex
kwargs = {'parts': []}
projection_type = field['Projection']['ProjectionType']
type_names = ['ALL', 'KEYS_ONLY', 'INCLUDE']
type_classes = [
GlobalAllIndex, GlobalKeysOnlyIndex, GlobalIncludeIndex
]
type_name_to_class = dict(zip(type_names, type_classes))
try:
index_klass = type_name_to_class[projection_type]
except KeyError:
raise exceptions.UnknownIndexFieldError(
"%s was seen, but is unknown. Please report this at "
"https://github.com/boto/boto/issues." % projection_type)
if projection_type == 'INCLUDE':
kwargs['includes'] = field['Projection']['NonKeyAttributes']
name = field['IndexName']
kwargs['parts'] = introspect_schema(field['KeySchema'], None)
indexes.append(index_klass(name, **kwargs))
return indexes
def _introspect_indexes(self, raw_indexes):
"""
Given a raw index structure back from a DynamoDB response, parse
out & build the high-level Python objects that represent them.
"""
indexes = []
for field in raw_indexes:
index_klass = AllIndex
kwargs = {'parts': []}
if field['Projection']['ProjectionType'] == 'ALL':
index_klass = AllIndex
elif field['Projection']['ProjectionType'] == 'KEYS_ONLY':
index_klass = KeysOnlyIndex
elif field['Projection']['ProjectionType'] == 'INCLUDE':
index_klass = IncludeIndex
kwargs['includes'] = field['Projection']['NonKeyAttributes']
else:
raise exceptions.UnknownIndexFieldError(
"%s was seen, but is unknown. Please report this at "
"https://github.com/boto/boto/issues." % \
field['Projection']['ProjectionType']
)
name = field['IndexName']
kwargs['parts'] = self._introspect_schema(field['KeySchema'])
indexes.append(index_klass(name, **kwargs))
return indexes
