liyafan82 commented on a change in pull request #7837:
URL: https://github.com/apache/arrow/pull/7837#discussion_r469660938
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File path:
java/algorithm/src/main/java/org/apache/arrow/algorithm/sort/VariableWidthOutOfPlaceVectorSorter.java
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@@ -45,6 +46,22 @@ public void sortOutOfPlace(V srcVector, V dstVector,
VectorValueComparator<V> co
ArrowBuf dstValueBuffer = dstVector.getDataBuffer();
ArrowBuf dstOffsetBuffer = dstVector.getOffsetBuffer();
+ // check buffer size
+ Preconditions.checkArgument(dstValidityBuffer.capacity() * 8 >=
srcVector.getValueCount(),
+ "Not enough capacity for the validity buffer of the dst vector. " +
+ "Expected capacity %s, actual capacity %s",
+ (srcVector.getValueCount() + 7) / 8, dstValidityBuffer.capacity());
+ Preconditions.checkArgument(
+ dstOffsetBuffer.capacity() >= srcVector.getValueCount() *
BaseVariableWidthVector.OFFSET_WIDTH,
+ "Not enough capacity for the offset buffer of the dst vector. " +
+ "Expected capacity %s, actual capacity %s",
+ srcVector.getValueCount() * BaseVariableWidthVector.OFFSET_WIDTH,
dstValueBuffer.capacity());
Review comment:
Nice catch. Thank you.
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