private Analyzer getLuceneAnalyzer() throws ProviderException {
try {
Class clazz = ClassUtil.findClass("", m_analyzerClass);
Constructor constructor = clazz.getConstructor(Version.LUCENE_36.getClass());
Analyzer analyzer = (Analyzer) constructor.newInstance(Version.LUCENE_36);
return analyzer;
} catch (Exception e) {
String msg = "Could not get LuceneAnalyzer class " + m_analyzerClass + ", reason: ";
log.error(msg, e);
throw new ProviderException(msg + e);
}
}
protected <N extends Number> NumericRangeQuery<?> numericRange(
Class<N> clazz,
String field,
@Nullable N min,
@Nullable N max,
boolean minInc,
boolean maxInc) {
if (clazz.equals(Integer.class)) {
return NumericRangeQuery.newIntRange(field, (Integer) min, (Integer) max, minInc, maxInc);
} else if (clazz.equals(Double.class)) {
return NumericRangeQuery.newDoubleRange(field, (Double) min, (Double) max, minInc, minInc);
} else if (clazz.equals(Float.class)) {
return NumericRangeQuery.newFloatRange(field, (Float) min, (Float) max, minInc, minInc);
} else if (clazz.equals(Long.class)) {
return NumericRangeQuery.newLongRange(field, (Long) min, (Long) max, minInc, minInc);
} else if (clazz.equals(Byte.class) || clazz.equals(Short.class)) {
return NumericRangeQuery.newIntRange(
field,
min != null ? min.intValue() : null,
max != null ? max.intValue() : null,
minInc,
maxInc);
} else {
throw new IllegalArgumentException("Unsupported numeric type " + clazz.getName());
}
}