rdblue commented on a change in pull request #627: Update indexing to handle
nested lists
URL: https://github.com/apache/incubator-iceberg/pull/627#discussion_r345340690
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File path: api/src/main/java/org/apache/iceberg/types/IndexByName.java
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@@ -20,53 +20,99 @@
package org.apache.iceberg.types;
import com.google.common.base.Joiner;
+import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
-import java.util.List;
+import java.util.Deque;
import java.util.Map;
+import java.util.concurrent.Callable;
+import java.util.function.Supplier;
import org.apache.iceberg.Schema;
+import org.apache.iceberg.exceptions.ValidationException;
-public class IndexByName extends TypeUtil.SchemaVisitor<Map<String, Integer>> {
+public class IndexByName extends TypeUtil.CustomOrderSchemaVisitor<Map<String,
Integer>> {
private static final Joiner DOT = Joiner.on(".");
+ private final Deque<String> fieldNames = Lists.newLinkedList();
private final Map<String, Integer> nameToId = Maps.newHashMap();
@Override
- public Map<String, Integer> schema(Schema schema, Map<String, Integer>
structResult) {
- return nameToId;
+ public Map<String, Integer> schema(Schema schema, Supplier<Map<String,
Integer>> structResult) {
+ return structResult.get();
}
@Override
- public Map<String, Integer> struct(Types.StructType struct, List<Map<String,
Integer>> fieldResults) {
+ public Map<String, Integer> struct(Types.StructType struct,
Iterable<Map<String, Integer>> fieldResults) {
+ // iterate through the fields to update the index for each one, use size
to avoid errorprone failure
Review comment:
Errorprone is a static analysis checker that we run.
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