kiszk commented on a change in pull request #10114:
URL: https://github.com/apache/arrow/pull/10114#discussion_r767176733
##########
File path:
java/dataset/src/test/java/org/apache/arrow/dataset/ParquetWriteSupport.java
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@@ -42,13 +43,15 @@
private final Schema avroSchema;
private final List<GenericRecord> writtenRecords = new ArrayList<>();
private final GenericRecordListBuilder recordListBuilder = new
GenericRecordListBuilder();
+ private final Random random = new Random();
public ParquetWriteSupport(String schemaName, File outputFolder) throws
Exception {
avroSchema = readSchemaFromFile(schemaName);
- path = outputFolder.getPath() + File.separator + "generated.parquet";
+ path = outputFolder.getPath() + File.separator + "generated-" +
random.nextLong() + ".parquet";
Review comment:
I think that this change wants to get a unique name for a short period.
How about using `System.currentTimeMillis()`?
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