private void alternateField(
NamedList docSummaries, SolrParams params, Document doc, String fieldName) {
String alternateField = params.getFieldParam(fieldName, HighlightParams.ALTERNATE_FIELD);
if (alternateField != null && alternateField.length() > 0) {
IndexableField[] docFields = doc.getFields(alternateField);
List<String> listFields = new ArrayList<String>();
for (IndexableField field : docFields) {
if (field.binaryValue() == null) listFields.add(field.stringValue());
}
String[] altTexts = listFields.toArray(new String[listFields.size()]);
if (altTexts != null && altTexts.length > 0) {
Encoder encoder = getEncoder(fieldName, params);
int alternateFieldLen =
params.getFieldInt(fieldName, HighlightParams.ALTERNATE_FIELD_LENGTH, 0);
List<String> altList = new ArrayList<String>();
int len = 0;
for (String altText : altTexts) {
if (alternateFieldLen <= 0) {
altList.add(encoder.encodeText(altText));
} else {
altList.add(
len + altText.length() > alternateFieldLen
? encoder.encodeText(new String(altText.substring(0, alternateFieldLen - len)))
: encoder.encodeText(altText));
len += altText.length();
if (len >= alternateFieldLen) break;
}
}
docSummaries.add(fieldName, altList);
}
}
}
protected String makeFragment(
StringBuilder buffer,
int[] index,
Field[] values,
WeightedFragInfo fragInfo,
String[] preTags,
String[] postTags,
Encoder encoder) {
StringBuilder fragment = new StringBuilder();
final int s = fragInfo.getStartOffset();
int[] modifiedStartOffset = {s};
String src =
getFragmentSourceMSO(
buffer, index, values, s, fragInfo.getEndOffset(), modifiedStartOffset);
int srcIndex = 0;
for (SubInfo subInfo : fragInfo.getSubInfos()) {
for (Toffs to : subInfo.getTermsOffsets()) {
fragment
.append(
encoder.encodeText(
src.substring(srcIndex, to.getStartOffset() - modifiedStartOffset[0])))
.append(getPreTag(preTags, subInfo.getSeqnum()))
.append(
encoder.encodeText(
src.substring(
to.getStartOffset() - modifiedStartOffset[0],
to.getEndOffset() - modifiedStartOffset[0])))
.append(getPostTag(postTags, subInfo.getSeqnum()));
srcIndex = to.getEndOffset() - modifiedStartOffset[0];
}
}
fragment.append(encoder.encodeText(src.substring(srcIndex)));
return fragment.toString();
}
protected void append(StringBuilder dest, String content, int start, int end) {
dest.append(encoder.encodeText(content.substring(start, end)));
}