Hi Eddie,
thanks for the fast reply!
What I've tried is:
byte[] bytes = new byte[ ( ( ByteArrayFS ) fs
).size() ];
for ( int i = 0; i < bytes.length; i++ ) {
bytes[i] = ( ( ByteArrayFS ) fs ).get( i );
}
// byte[] bytes = ( ( ByteArrayFS ) fs ).toArray();
System.out.println( fs + "; " + bytes.length +
"; " + Arrays.toString( bytes ) );
This is the output of on the stdout:
ByteArray
Array length: 2
Array elements: [16, 41]
; 2; [16, 41]
Unfortunately, the bytes length is only 2...
Is it possible that there is something wrong with the deserialization of
the ByteArray feature? I've check in the UIMA source code and it appears
that there is different handling of the ByteArray than other array
features...
greetings
Diman
On 09/17/2010 04:52 PM, Eddie Epstein wrote:
Hi,
The implementation of ByteArrayFS.toArray() doesn't look so good. As a
workaround, please try accessing the byte values one at a time using
the get(int i) method.
By the way, an easier way to get the feature should be
Feature feature = anno.getType().getFeatureByBaseName("hypernyms");
Eddie
On Fri, Sep 17, 2010 at 2:49 AM, Diman Karagiozov<[email protected]> wrote:
Hi,
I am developing an NLP tool based on latest UIMA version (2.3.0 incubating).
Basically, the tool utilizes an aggregate engine with several primitive
engines.
Currently, I am having a problem with the handling of ByteArray values of
one of the annotation features.
Here is how am I setting the value of the feature:
final ByteArray ba = new ByteArray( cas,
wordHypernymsAsBytes.length );
ba.copyFromArray( wordHypernymsAsBytes, 0, 0,
wordHypernymsAsBytes.length );
token.setHypernyms( ba );
And here is how am I reading the ByteArray features (there will be more, so
I need a generic way of reading them):
List< Feature> annoFeatures =
anno.getCAS().getJCas().getTypeSystem().getType( anno.getType().getName()
).getFeatures();
Iterator< Feature> featIter = annoFeatures.iterator();
....
while ( featIter.hasNext() ) {
Feature feature = featIter.next();
...
if ( feature.getRange().getName().equalsIgnoreCase(
"uima.cas.ByteArray" ) ) {
FeatureStructure fs = anno.getFeatureValue( feature );
if ( fs != null ) {
byte[] bytes = ( ( ByteArrayFS ) fs ).toArray();
----> here is the problem actually. The bytes array contains a single byte
(length of the array is 1). The "setter" above is setting something much
longer.
}
}
}
My question is how to read&write the ByteArray features?
Attached you can find the serialized CAS file as well...
greetings
Diman
