Scripts to download files from google storage based on sha1 sums

third_party/gsutil/boto/sdb/db/query.py

+# Copyright (c) 2006,2007,2008 Mitch Garnaat http://garnaat.org/
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish, dis-
+# tribute, sublicense, and/or sell copies of the Software, and to permit
+# persons to whom the Software is furnished to do so, subject to the fol-
+# lowing conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
+# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
+# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
+# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+
+class Query(object):
+    __local_iter__ = None
+    def __init__(self, model_class, limit=None, next_token=None, manager=None):
+        self.model_class = model_class
+        self.limit = limit
+        self.offset = 0
+        if manager:
+            self.manager = manager
+        else:
+            self.manager = self.model_class._manager
+        self.filters = []
+        self.select = None
+        self.sort_by = None
+        self.rs = None
+        self.next_token = next_token
+
+    def __iter__(self):
+        return iter(self.manager.query(self))
+
+    def next(self):
+        if self.__local_iter__ == None:
+            self.__local_iter__ = self.__iter__()
+        return self.__local_iter__.next()
+
+    def filter(self, property_operator, value):
+        self.filters.append((property_operator, value))
+        return self
+
+    def fetch(self, limit, offset=0):
+        """Not currently fully supported, but we can use this
+        to allow them to set a limit in a chainable method"""
+        self.limit = limit
+        self.offset = offset
+        return self
+
+    def count(self, quick=True):
+        return self.manager.count(self.model_class, self.filters, quick, self.sort_by, self.select)
+
+    def get_query(self):
+        return self.manager._build_filter_part(self.model_class, self.filters, self.sort_by, self.select)
+
+    def order(self, key):
+        self.sort_by = key
+        return self
+    
+    def to_xml(self, doc=None):
+        if not doc:
+            xmlmanager = self.model_class.get_xmlmanager()
+            doc = xmlmanager.new_doc()
+        for obj in self:
+            obj.to_xml(doc)
+        return doc
+
+    def get_next_token(self):
+        if self.rs:
+            return self.rs.next_token
+        if self._next_token:
+            return self._next_token
+        return None
+
+    def set_next_token(self, token):
+        self._next_token = token
+
+    next_token = property(get_next_token, set_next_token)