replacement cache subsystem that's gestated in 2.1 and 3.0.

it rocks your world, baby.

svn path=/main/branches/2.0/; revision=2257

1 files changed, 41 insertions, 0 deletions

diff --git a/pym/cache/cache_errors.py b/pym/cache/cache_errors.py
new file mode 100644
index 000000000..2f5b831bf
--- /dev/null
+++ b/pym/cache/cache_errors.py
@@ -0,0 +1,41 @@
+# Copyright: 2005 Gentoo Foundation
+# Author(s): Brian Harring (ferringb@gentoo.org)
+# License: GPL2
+# $Id: cache_errors.py 1911 2005-08-25 03:44:21Z ferringb $
+
+class CacheError(Exception):	pass
+
+class InitializationError(CacheError):
+	def __init__(self, class_name, error):
+		self.error, self.class_name = error, class_name
+	def __str__(self):
+		return "Creation of instance %s failed due to %s" % \
+			(self.class_name, str(self.error))
+
+
+class CacheCorruption(CacheError):
+	def __init__(self, key, ex):
+		self.key, self.ex = key, ex
+	def __str__(self):
+		return "%s is corrupt: %s" % (self.key, str(self.ex))
+
+
+class GeneralCacheCorruption(CacheError):
+	def __init__(self,ex):	self.ex = ex
+	def __str__(self):	return "corruption detected: %s" % str(self.ex)
+
+
+class InvalidRestriction(CacheError):
+	def __init__(self, key, restriction, exception=None):
+		if exception == None:	exception = ''
+		self.key, self.restriction, self.ex = key, restriction, ex
+	def __str__(self):
+		return "%s:%s is not valid: %s" % \
+			(self.key, self.restriction, str(self.ex))
+
+
+class ReadOnlyRestriction(CacheError):
+	def __init__(self, info=''):
+		self.info = info
+	def __str__(self):
+		return "cache is non-modifiable"+str(self.info)