David Mollitor created AVRO-4070:
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Summary: Optimize Check Max Collection Length for New Collections
Key: AVRO-4070
URL: https://issues.apache.org/jira/browse/AVRO-4070
Project: Apache Avro
Issue Type: Improvement
Components: java
Affects Versions: 1.12.0
Reporter: David Mollitor
Assignee: David Mollitor
Fix For: 1.13.0
To squeeze out a little more performance, the following
'checkMaxCollectionLength()' method can be streamlined given: the first
parameter is always 0L and the second parameter is always greater than or equal
to zero.
{code:java}
public long readArrayStart() throws IOException {
collectionCount = SystemLimitException.checkMaxCollectionLength(0L,
doReadItemCount());
return collectionCount;
}
/**
* A block with count zero indicates
* the end of the array. If a block's count is negative, its absolute value is
* used, and the count is followed immediately by a long block size indicating
* the number of bytes in the block.
*/
protected long doReadItemCount() throws IOException {
long result = readLong();
if (result < 0L) {
// Consume byte-count if present
readLong();
result = -result;
}
return result;
}
{code}
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