def ScanByType(self,
type_name,
after_timestamp=None,
include_suffix=False,
max_records=None):
"""Scans for stored records.
Scans through the collection, returning stored values ordered by timestamp.
Args:
type_name: Type of the records to scan.
after_timestamp: If set, only returns values recorded after timestamp.
include_suffix: If true, the timestamps returned are pairs of the form
(micros_since_epoc, suffix) where suffix is a 24 bit random refinement
to avoid collisions. Otherwise only micros_since_epoc is returned.
max_records: The maximum number of records to return. Defaults to
unlimited.
Yields:
Pairs (timestamp, rdf_value), indicating that rdf_value was stored at
timestamp.
"""
sub_collection_urn = self.collection_id.Add(type_name)
sub_collection = sequential_collection.GrrMessageCollection(
sub_collection_urn)
for item in sub_collection.Scan(after_timestamp=after_timestamp,
include_suffix=include_suffix,
max_records=max_records):
yield item
def __iter__(self):
sub_collection_urns = [
self.collection_id.Add(stored_type)
for stored_type in self.ListStoredTypes()
]
for sub_collection_urn in sub_collection_urns:
sub_collection = sequential_collection.GrrMessageCollection(
sub_collection_urn)
for item in sub_collection:
yield item
def __len__(self):
l = 0
sub_collection_urns = [
self.collection_id.Add(stored_type)
for stored_type in self.ListStoredTypes()
]
for sub_collection_urn in sub_collection_urns:
sub_collection = sequential_collection.GrrMessageCollection(
sub_collection_urn)
l += len(sub_collection)
return l
def LengthByType(self, type_name):
sub_collection_urn = self.collection_id.Add(type_name)
sub_collection = sequential_collection.GrrMessageCollection(
sub_collection_urn)
return len(sub_collection)