@Override
public int getPositionIncrementGap(String fieldName) {
int dotIndex = fieldName.indexOf('.');
if (dotIndex != -1) {
String possibleType = fieldName.substring(0, dotIndex);
DocumentMapper possibleDocMapper = mappers.get(possibleType);
if (possibleDocMapper != null) {
return possibleDocMapper.mappers().searchAnalyzer().getPositionIncrementGap(fieldName);
}
}
FieldMappers mappers = fullNameFieldMappers.get(fieldName);
if (mappers != null
&& mappers.mapper() != null
&& mappers.mapper().searchAnalyzer() != null) {
return mappers.mapper().searchAnalyzer().getPositionIncrementGap(fieldName);
}
mappers = indexNameFieldMappers.get(fieldName);
if (mappers != null
&& mappers.mapper() != null
&& mappers.mapper().searchAnalyzer() != null) {
return mappers.mapper().searchAnalyzer().getPositionIncrementGap(fieldName);
}
return defaultAnalyzer.getPositionIncrementGap(fieldName);
}
/**
* Convenience method; Tokenizes the given field text and adds the resulting terms to the index;
* Equivalent to adding an indexed non-keyword Lucene {@link org.apache.lucene.document.Field}
* that is tokenized, not stored, termVectorStored with positions (or termVectorStored with
* positions and offsets),
*
* @param fieldName a name to be associated with the text
* @param text the text to tokenize and index.
* @param analyzer the analyzer to use for tokenization
*/
public void addField(String fieldName, String text, Analyzer analyzer) {
if (fieldName == null) throw new IllegalArgumentException("fieldName must not be null");
if (text == null) throw new IllegalArgumentException("text must not be null");
if (analyzer == null) throw new IllegalArgumentException("analyzer must not be null");
TokenStream stream;
try {
stream = analyzer.tokenStream(fieldName, text);
} catch (IOException ex) {
throw new RuntimeException(ex);
}
addField(
fieldName,
stream,
1.0f,
analyzer.getPositionIncrementGap(fieldName),
analyzer.getOffsetGap(fieldName));
}