public RegionInfo getRegionInfo(final String encodedRegionName) {
    final RegionStateNode regionState =
      regionStates.getRegionStateNodeFromEncodedRegionName(encodedRegionName);
    return regionState != null ? regionState.getRegionInfo() : null;
  }
Resolve a cached {@link RegionInfo} from the encoded region name as a {@code String}.
hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/AssignmentManager.java