wuxizhi777 commented on PR #4772:
URL: https://github.com/apache/seatunnel/pull/4772#issuecomment-1581822978
public class test {
private static final XXHash64 HASH_INSTANCE =
XXHashFactory.fastestInstance().hash64();
public int getShard(Object shardValue){
int shardWeightCount = 6;
int offset =
(int)
((HASH_INSTANCE.hash(
ByteBuffer.wrap(
shardValue
.toString()
.getBytes(StandardCharsets.UTF_8)),
0)
& Long.MAX_VALUE)
% shardWeightCount);
return offset;
}
@Test
public void testShared(){
String a = "a,b,c,d,e,f";
for(Object o: Arrays.stream(a.split(",")).toArray()){
System.out.println(getShard(o));
}
}
}
===================
the result is :
3
3
3
2
4
5
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