stubz151 commented on code in PR #13997:
URL: https://github.com/apache/iceberg/pull/13997#discussion_r2373059558
##########
parquet/src/main/java/org/apache/iceberg/parquet/ParquetIO.java:
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@@ -123,6 +136,72 @@ public void seek(long newPos) throws IOException {
}
}
+ private static class ParquetRangeReadableInputStreamAdapter<
+ T extends org.apache.iceberg.io.SeekableInputStream & RangeReadable>
+ extends DelegatingSeekableInputStream implements RangeReadable {
+ private final T delegate;
+
+ private ParquetRangeReadableInputStreamAdapter(T delegate) {
+ super(delegate);
+ this.delegate = delegate;
+ }
+
+ @Override
+ public long getPos() throws IOException {
+ return delegate.getPos();
+ }
+
+ @Override
+ public void seek(long newPos) throws IOException {
+ delegate.seek(newPos);
+ }
+
+ @Override
+ public void readFully(long position, byte[] buffer, int offset, int
length) throws IOException {
+ delegate.readFully(position, buffer, offset, length);
+ }
+
+ @Override
+ public int readTail(byte[] buffer, int offset, int length) throws
IOException {
+ return delegate.readTail(buffer, offset, length);
+ }
+
+ @Override
+ public boolean readVectoredAvailable(ByteBufferAllocator allocate) {
+ return true;
+ }
+
+ @Override
+ public void readVectored(List<ParquetFileRange> ranges,
ByteBufferAllocator allocate)
Review Comment:
I added in testRangeReadableAdapterReadVectored which does something similar
to the tests in S3FileIO, but focused a bit more on checking that the
buffers/ranges are being used correctly, I skipped the other operations but can
add them in if we want. Let me know
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