-import re, urlparse
+import exceptions, re, urlparse
type_patterns = {
'checksums': re.compile(r"^snapshot-(.*)\.(\w+)sums$"),
'snapshots': re.compile(r"^snapshot-(.*)\.lbs$")
}
+class NotFoundError(exceptions.KeyError):
+ """Exception thrown when a file is not found in a repository."""
+
+ pass
+
class Store:
"""Base class for all cumulus storage backends."""
def delete(self, type, name):
raise NotImplementedException
+ def stat(self, type, name):
+ raise NotImplementedException
+
+ def scan(self):
+ """Cache file information stored in this backend.
+
+ This might make subsequent list or stat calls more efficient, but this
+ function is intended purely as a performance optimization."""
+
+ pass
+
def open(url):
(scheme, netloc, path, params, query, fragment) \
= urlparse.urlparse(url)