public ValueReader primitive()

in core/src/main/java/org/apache/iceberg/avro/GenericAvroReader.java [173:237]
55 lines of code
23 McCabe index (conditional complexity)

    public ValueReader<?> primitive(Type partner, Schema primitive) {
      LogicalType logicalType = primitive.getLogicalType();
      if (logicalType != null) {
        switch (logicalType.getName()) {
          case "date":
            // Spark uses the same representation
            return ValueReaders.ints();

          case "time-micros":
            return ValueReaders.longs();

          case "timestamp-millis":
            // adjust to microseconds
            ValueReader<Long> longs = ValueReaders.longs();
            return (ValueReader<Long>) (decoder, ignored) -> longs.read(decoder, null) * 1000L;

          case "timestamp-micros":
          case "timestamp-nanos":
            // both are handled in memory as long values, using the type to track units
            return ValueReaders.longs();

          case "decimal":
            return ValueReaders.decimal(
                ValueReaders.decimalBytesReader(primitive),
                ((LogicalTypes.Decimal) logicalType).getScale());

          case "uuid":
            return ValueReaders.uuids();

          default:
            throw new IllegalArgumentException("Unknown logical type: " + logicalType);
        }
      }

      switch (primitive.getType()) {
        case NULL:
          return ValueReaders.nulls();
        case BOOLEAN:
          return ValueReaders.booleans();
        case INT:
          if (partner != null && partner.typeId() == Type.TypeID.LONG) {
            return ValueReaders.intsAsLongs();
          }
          return ValueReaders.ints();
        case LONG:
          return ValueReaders.longs();
        case FLOAT:
          if (partner != null && partner.typeId() == Type.TypeID.DOUBLE) {
            return ValueReaders.floatsAsDoubles();
          }
          return ValueReaders.floats();
        case DOUBLE:
          return ValueReaders.doubles();
        case STRING:
          return ValueReaders.utf8s();
        case FIXED:
          return ValueReaders.fixed(primitive);
        case BYTES:
          return ValueReaders.byteBuffers();
        case ENUM:
          return ValueReaders.enums(primitive.getEnumSymbols());
        default:
          throw new IllegalArgumentException("Unsupported type: " + primitive);
      }
    }