Yiqun Zhang created ORC-904:
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Summary: Optimize userMetadata data structure to avoid traversal
Key: ORC-904
URL: https://issues.apache.org/jira/browse/ORC-904
Project: ORC
Issue Type: Improvement
Components: Java
Reporter: Yiqun Zhang
ReaderImpl.java
{code:java}
@Override
public ByteBuffer getMetadataValue(String key) {
for(OrcProto.UserMetadataItem item: userMetadata) {
if (item.hasName() && item.getName().equals(key)) {
return item.getValue().asReadOnlyByteBuffer();
}
}
throw new IllegalArgumentException("Can't find user metadata " + key);
}
@Override
public boolean hasMetadataValue(String key) {
for(OrcProto.UserMetadataItem item: userMetadata) {
if (item.hasName() && item.getName().equals(key)) {
return true;
}
}
return false;
}
{code}
I think the data structure of userMetadata can be modified to map, avoid
traversal
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