jbonofre commented on code in PR #3307:
URL: https://github.com/apache/avro/pull/3307#discussion_r1988779886
##########
lang/java/avro/src/main/java/org/apache/avro/generic/GenericData.java:
##########
@@ -1515,36 +1516,39 @@ else if (value instanceof Utf8) {
}
- /*
+ /**
* Called to create new array instances. Subclasses may override to use a
- * different array implementation. By default, this returns a {@link
- * GenericData.Array}.
+ * different array implementation. By default, this returns a
+ * {@link GenericData.Array}.
+ *
+ * @param old the old array instance to reuse, if possible. If the old
array
+ * is an appropriate type, it may be cleared and returned.
+ * @param size the size of the array to create.
+ * @param schema the schema of the array elements.
*/
public Object newArray(Object old, int size, Schema schema) {
- if (old instanceof GenericArray) {
- ((GenericArray<?>) old).reset();
- return old;
- } else if (old instanceof Collection) {
- ((Collection<?>) old).clear();
- return old;
- } else {
- if (schema.getElementType().getType() == Type.INT) {
- return new PrimitivesArrays.IntArray(size, schema);
- }
- if (schema.getElementType().getType() == Type.BOOLEAN) {
- return new PrimitivesArrays.BooleanArray(size, schema);
- }
- if (schema.getElementType().getType() == Type.LONG) {
- return new PrimitivesArrays.LongArray(size, schema);
- }
- if (schema.getElementType().getType() == Type.FLOAT) {
- return new PrimitivesArrays.FloatArray(size, schema);
- }
- if (schema.getElementType().getType() == Type.DOUBLE) {
- return new PrimitivesArrays.DoubleArray(size, schema);
+ final var logicalType = schema.getElementType().getLogicalType();
+ final var conversion = getConversionFor(logicalType);
+ final var optimalValueType = PrimitivesArrays.optimalValueType(schema,
logicalType,
+ conversion == null ? null : conversion.getConvertedType());
Review Comment:
@mkeskells FYI, Arrow Java is now on a dedicated repository:
https://github.com/apache/arrow-java
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