vdiravka commented on a change in pull request #1527: DRILL-4456: Fix Hive
translate UDF
URL: https://github.com/apache/drill/pull/1527#discussion_r231943055
##########
File path:
contrib/storage-hive/core/src/main/java/org/apache/drill/exec/expr/fn/HiveFunctionRegistry.java
##########
@@ -48,8 +52,17 @@
import
org.apache.drill.shaded.guava.com.google.common.collect.ArrayListMultimap;
import org.apache.drill.shaded.guava.com.google.common.collect.Sets;
-public class HiveFunctionRegistry implements PluggableFunctionRegistry{
- static final org.slf4j.Logger logger =
org.slf4j.LoggerFactory.getLogger(HiveFunctionRegistry.class);
+public class HiveFunctionRegistry implements PluggableFunctionRegistry {
+ private static final org.slf4j.Logger logger =
org.slf4j.LoggerFactory.getLogger(HiveFunctionRegistry.class);
+
+ /**
+ * Map for renaming Hive UDFs whose names satisfy the predicate in the key
by names from the map value.
+ */
+ private static final Map<Predicate<String[]>, String[]> FUNCTION_REPLACE_MAP
= ImmutableMap.<Predicate<String[]>, String[]> builder()
Review comment:
@vvysotskyi Try to simplify the logic for `FUNCTION_REPLACE_MAP`. Possibly
try to get rid from `String[]` (you can add all function names to this Map), so
in result it can be similar to
https://github.com/apache/drill/blob/master/logical/src/main/java/org/apache/drill/common/expression/fn/FunctionReplacementUtils.java#L42
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