joshelser commented on a change in pull request #53: HBASE-23791 [operator
tools] Remove reference to I.A. Private interfa…
URL:
https://github.com/apache/hbase-operator-tools/pull/53#discussion_r375480224
##########
File path:
hbase-hbck2/src/main/java/org/apache/hbase/HBCKMetaTableAccessor.java
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@@ -138,4 +182,550 @@ private static void deleteFromMetaTable(final Connection
connection, final Delet
t.delete(deletes);
}
}
+
+ /**
+ * Returns all regions in meta for the given table.
+ * @param conn a valid, open connection.
+ * @param table the table to list regions in meta.
+ * @return a list of <code>RegionInfo</code> for all table regions present
in meta.
+ * @throws IOException on any issues related with scanning meta table
+ */
+ public static List<RegionInfo> getTableRegions(final Connection conn, final
TableName table)
+ throws IOException {
+ final MetaScanner<RegionInfo> scanner = new MetaScanner<>();
+ final String startRow = Bytes.toString(table.getName()) + ",,";
+ final String stopRow = Bytes.toString(table.getName()) + " ,,";
+ return scanner.scanMeta(conn,
+ scan -> {
+ scan.withStartRow(Bytes.toBytes(startRow));
+ scan.withStopRow(Bytes.toBytes(stopRow));
+ },
+ r -> {
+ Cell cell = r.getColumnLatestCell(CATALOG_FAMILY,
REGIONINFO_QUALIFIER);
+ if(cell != null) {
+ RegionInfo info = RegionInfo
+ .parseFromOrNull(cell.getValueArray(), cell.getValueOffset(),
cell.getValueLength());
+ return info;
+ } else {
Review comment:
Nit: can just be `if () { } return null;`
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