gitesh created MNGSITE-382:
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Summary: Deprecated method copyChars is used in example
Key: MNGSITE-382
URL: https://issues.apache.org/jira/browse/MNGSITE-382
Project: Maven Project Web Site
Issue Type: Bug
Reporter: gitesh
Following documentation page for FST class has some example code.
[https://lucene.apache.org/core/8_3_0/core/org/apache/lucene/util/fst/package-summary.html]
{code:java}
// Input values (keys). These must be provided to Builder in Unicode
sorted order!
String inputValues[] = {"cat", "dog", "dogs"};
long outputValues[] = {5, 7, 12};
PositiveIntOutputs outputs = PositiveIntOutputs.getSingleton();
Builder<Long> builder = new Builder<Long>(INPUT_TYPE.BYTE1, outputs);
BytesRef scratchBytes = new BytesRef();
IntsRefBuilder scratchInts = new IntsRefBuilder();
for (int i = 0; i < inputValues.length; i++) {
scratchBytes.copyChars(inputValues[i]);
builder.add(Util.toIntsRef(scratchBytes, scratchInts), outputValues[i]);
}
FST<Long> fst = builder.finish();
{code}
Compilation of above code with Solr 8.3 libraries complains that no method
copyChars found. copyChars method in BytesRef class is deprecated from long
time. We should use BytesRefBuilder class instead. Here is the correct code:
{code:java}
String inputValues[] = {"cat", "dog", "dogs"};
long outputValues[] = {5, 7, 12};
PositiveIntOutputs outputs = PositiveIntOutputs.getSingleton();
Builder<Long> builder = new Builder<Long>(FST.INPUT_TYPE.BYTE1, outputs);
BytesRefBuilder scratchBytes = new BytesRefBuilder();
IntsRefBuilder scratchInts = new IntsRefBuilder();
for (int i = 0; i < inputValues.length; i++) {
scratchBytes.copyChars(inputValues[i]);
builder.add(Util.toIntsRef(scratchBytes.toBytesRef(), scratchInts),
outputValues[i]);
}
FST<Long> fst = builder.finish();
{code}
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