rdblue commented on code in PR #12311:
URL: https://github.com/apache/iceberg/pull/12311#discussion_r1970492212
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api/src/main/java/org/apache/iceberg/variants/VariantUtil.java:
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@@ -18,21 +18,112 @@
*/
package org.apache.iceberg.variants;
+import java.math.BigDecimal;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.charset.StandardCharsets;
+import java.util.Map;
import java.util.function.Function;
import org.apache.iceberg.relocated.com.google.common.base.Preconditions;
+import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap;
+import org.apache.iceberg.types.Type;
+import org.apache.iceberg.types.Types;
-class VariantUtil {
+public class VariantUtil {
private static final int BASIC_TYPE_MASK = 0b11;
private static final int BASIC_TYPE_PRIMITIVE = 0;
private static final int BASIC_TYPE_SHORT_STRING = 1;
private static final int BASIC_TYPE_OBJECT = 2;
private static final int BASIC_TYPE_ARRAY = 3;
+ // TODO: Implement PhysicalType.TIME
+ // TODO: Implement PhysicalType.TIMESTAMPNTZ_NANO and
PhysicalType.TIMESTAMPTZ_NANO
+ // TODO: Implement PhysicalType.UUID
+ private static final Map<Type, PhysicalType> NO_CONVERSION_NEEDED =
+ ImmutableMap.<Type, PhysicalType>builder()
+ .put(Types.IntegerType.get(), PhysicalType.INT32)
+ .put(Types.LongType.get(), PhysicalType.INT64)
+ .put(Types.FloatType.get(), PhysicalType.FLOAT)
+ .put(Types.DoubleType.get(), PhysicalType.DOUBLE)
+ .put(Types.DateType.get(), PhysicalType.DATE)
+ .put(Types.TimestampType.withoutZone(), PhysicalType.TIMESTAMPNTZ)
+ .put(Types.TimestampType.withZone(), PhysicalType.TIMESTAMPTZ)
+ .put(Types.StringType.get(), PhysicalType.STRING)
+ .put(Types.BinaryType.get(), PhysicalType.BINARY)
+ .put(Types.UnknownType.get(), PhysicalType.NULL)
+ .build();
+
private VariantUtil() {}
+ @SuppressWarnings("unchecked")
+ public static <T> T castTo(VariantValue value, Type type) {
Review Comment:
I moved this so that it is now package-private within expressions.
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