2bbf73f1df
Contributed by Steve Loughran. This is part of the ongoing refactoring of the S3A codebase, with the delegation token support (HADOOP-14556) no longer given a direct reference to the owning S3AFileSystem. Instead it gets a StoreContext and a new interface, DelegationOperations, to access those operations offered by S3AFS which are specifically needed by the DT bindings. The sole operation needed is listAWSPolicyRules(), which is used to allow S3A FS and the S3Guard metastore to return the AWS policy rules needed to access their specific services/buckets/tables, allowing the AssumedRole delegation token to be locked down. As further restructuring takes place, that interface's implementation can be moved to wherever the new home for those operations ends up. Although it changes the API of an extension point, that feature (S3 Delegation Tokens) has not shipped; backwards compatibility is not a problem except for anyone who has implemented DT support against trunk. To those developers: sorry. Change-Id: I770f58b49ff7634a34875ba37b7d51c94d7c21da |
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