Example usage for org.apache.lucene.search.uhighlight UnifiedHighlighter highlightFields

Introduction

In this page you can find the example usage for org.apache.lucene.search.uhighlight UnifiedHighlighter highlightFields.

Prototype

public Map<String, String[]> highlightFields(String[] fieldsIn, Query query, int[] docidsIn,
        int[] maxPassagesIn) throws IOException 

Source Link

Document

Highlights the top-N passages from multiple fields, for the provided int[] docids.

Usage

From source file:org.apache.solr.highlight.UnifiedSolrHighlighter.java

License:Apache License

@Override
public NamedList<Object> doHighlighting(DocList docs, Query query, SolrQueryRequest req, String[] defaultFields)
        throws IOException {
    final SolrParams params = req.getParams();

    // if highlighting isn't enabled, then why call doHighlighting?
    if (!isHighlightingEnabled(params))
        return null;

    int[] docIDs = toDocIDs(docs);

    // fetch the unique keys
    String[] keys = getUniqueKeys(req.getSearcher(), docIDs);

    // query-time parameters
    String[] fieldNames = getHighlightFields(query, req, defaultFields);

    int maxPassages[] = new int[fieldNames.length];
    for (int i = 0; i < fieldNames.length; i++) {
        maxPassages[i] = params.getFieldInt(fieldNames[i], HighlightParams.SNIPPETS, 1);
    }/*from w  ww . ja v  a  2 s . co  m*/

    UnifiedHighlighter highlighter = getHighlighter(req);
    Map<String, String[]> snippets = highlighter.highlightFields(fieldNames, query, docIDs, maxPassages);
    return encodeSnippets(keys, fieldNames, snippets);
}

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