feat: Support additional file systems #29
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The current implementation limits the use of
fs-hdfsto only three file systems. However, it is possible that users have custom implementations of hadoop file systems. In particular,hadoop-awsprovides thes3afile system that is extremely commonly used.This PR allows registering a new file system that is recognized by
fs-hdfs.As a part of this change, the PR also allows suppressing the
UnsupportedOperationExceptionthat is currently printed out to stderr when verifying that the file system supports direct buffer reads. (This happens, for instance, with thes3afile system).