stevenzwu commented on code in PR #6222:
URL: https://github.com/apache/iceberg/pull/6222#discussion_r1042761243
##########
core/src/main/java/org/apache/iceberg/BaseFilesTable.java:
##########
@@ -223,34 +225,28 @@ ManifestFile manifest() {
static class ContentFileStructWithMetrics implements StructLike {
private final StructLike fileAsStruct;
private final MetricsUtil.ReadableMetricsStruct readableMetrics;
- private final int expectedSize;
+ private final int position;
ContentFileStructWithMetrics(
- int expectedSize,
- StructLike fileAsStruct,
- MetricsUtil.ReadableMetricsStruct readableMetrics) {
+ int position, StructLike fileAsStruct,
MetricsUtil.ReadableMetricsStruct readableMetrics) {
this.fileAsStruct = fileAsStruct;
this.readableMetrics = readableMetrics;
- this.expectedSize = expectedSize;
+ this.position = position;
}
@Override
public int size() {
- return expectedSize;
+ return position;
}
@Override
public <T> T get(int pos, Class<T> javaClass) {
- int lastExpectedIndex = expectedSize - 1;
- if (pos < lastExpectedIndex) {
+ if (pos < position) {
return fileAsStruct.get(pos, javaClass);
- } else if (pos == lastExpectedIndex) {
+ } else if (pos == position) {
return javaClass.cast(readableMetrics);
} else {
- throw new IllegalArgumentException(
Review Comment:
I think we should just add a Preconditions check
```
Preconditions.check(pos < expectedSize, ...)
if (pos == metricsPosition) {
return javaClass.cast...
} else {
return fileAsStruct.get(pos, javaClass);
}
```
not sure if the metricsPosition can be null or not. if yes, we can update
the if condition a little bit.
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