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Unified Diff: third_party/gsutil/boto/boto/sdb/queryresultset.py

Issue 12042069: Scripts to download files from google storage based on sha1 sums (Closed) Base URL: https://chromium.googlesource.com/chromium/tools/depot_tools.git@master
Patch Set: Review fixes, updated gsutil Created 7 years, 10 months ago
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Index: third_party/gsutil/boto/boto/sdb/queryresultset.py
diff --git a/third_party/gsutil/boto/boto/sdb/queryresultset.py b/third_party/gsutil/boto/boto/sdb/queryresultset.py
new file mode 100644
index 0000000000000000000000000000000000000000..10bafd1c92c9fe4319e9f6e9be69b3832bf1e84a
--- /dev/null
+++ b/third_party/gsutil/boto/boto/sdb/queryresultset.py
@@ -0,0 +1,92 @@
+# Copyright (c) 2006,2007 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.
+
+def query_lister(domain, query='', max_items=None, attr_names=None):
+ more_results = True
+ num_results = 0
+ next_token = None
+ while more_results:
+ rs = domain.connection.query_with_attributes(domain, query, attr_names,
+ next_token=next_token)
+ for item in rs:
+ if max_items:
+ if num_results == max_items:
+ raise StopIteration
+ yield item
+ num_results += 1
+ next_token = rs.next_token
+ more_results = next_token != None
+
+class QueryResultSet:
+
+ def __init__(self, domain=None, query='', max_items=None, attr_names=None):
+ self.max_items = max_items
+ self.domain = domain
+ self.query = query
+ self.attr_names = attr_names
+
+ def __iter__(self):
+ return query_lister(self.domain, self.query, self.max_items, self.attr_names)
+
+def select_lister(domain, query='', max_items=None):
+ more_results = True
+ num_results = 0
+ next_token = None
+ while more_results:
+ rs = domain.connection.select(domain, query, next_token=next_token)
+ for item in rs:
+ if max_items:
+ if num_results == max_items:
+ raise StopIteration
+ yield item
+ num_results += 1
+ next_token = rs.next_token
+ more_results = next_token != None
+
+class SelectResultSet(object):
+
+ def __init__(self, domain=None, query='', max_items=None,
+ next_token=None, consistent_read=False):
+ self.domain = domain
+ self.query = query
+ self.consistent_read = consistent_read
+ self.max_items = max_items
+ self.next_token = next_token
+
+ def __iter__(self):
+ more_results = True
+ num_results = 0
+ while more_results:
+ rs = self.domain.connection.select(self.domain, self.query,
+ next_token=self.next_token,
+ consistent_read=self.consistent_read)
+ for item in rs:
+ if self.max_items and num_results >= self.max_items:
+ raise StopIteration
+ yield item
+ num_results += 1
+ self.next_token = rs.next_token
+ if self.max_items and num_results >= self.max_items:
+ raise StopIteration
+ more_results = self.next_token != None
+
+ def next(self):
+ return self.__iter__().next()

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