Example usage for org.apache.solr.spelling AbstractLuceneSpellChecker DEFAULT_SUGGESTION_COUNT

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Prototype

int DEFAULT_SUGGESTION_COUNT

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Usage

From source file:org.dice.solrenhancements.spellchecker.DiceSpellCheckComponent.java

License:Apache License

@Override
@SuppressWarnings({ "unchecked", "deprecation" })
public void finishStage(ResponseBuilder rb) {
    SolrParams params = rb.req.getParams();
    if (!params.getBool(COMPONENT_NAME, false) || rb.stage != ResponseBuilder.STAGE_GET_FIELDS)
        return;/* w  ww  .j a va  2 s  . c  om*/

    boolean extendedResults = params.getBool(SPELLCHECK_EXTENDED_RESULTS, false);
    boolean collate = params.getBool(SPELLCHECK_COLLATE, false);
    boolean collationExtendedResults = params.getBool(SPELLCHECK_COLLATE_EXTENDED_RESULTS, false);
    int maxCollationTries = params.getInt(SPELLCHECK_MAX_COLLATION_TRIES, 0);
    int maxCollations = params.getInt(SPELLCHECK_MAX_COLLATIONS, 1);
    Integer maxResultsForSuggest = params.getInt(SpellingParams.SPELLCHECK_MAX_RESULTS_FOR_SUGGEST);
    int count = rb.req.getParams().getInt(SPELLCHECK_COUNT, 1);
    int numSug = Math.max(count, AbstractLuceneSpellChecker.DEFAULT_SUGGESTION_COUNT);

    String origQuery = params.get(SPELLCHECK_Q);
    if (origQuery == null) {
        origQuery = rb.getQueryString();
        if (origQuery == null) {
            origQuery = params.get(CommonParams.Q);
        }
    }

    long hits = rb.grouping() ? rb.totalHitCount : rb.getNumberDocumentsFound();
    boolean isCorrectlySpelled = hits > (maxResultsForSuggest == null ? 0 : maxResultsForSuggest);

    SpellCheckMergeData mergeData = new SpellCheckMergeData();
    if (maxResultsForSuggest == null || !isCorrectlySpelled) {
        for (ShardRequest sreq : rb.finished) {
            for (ShardResponse srsp : sreq.responses) {
                NamedList nl = (NamedList) srsp.getSolrResponse().getResponse().get("spellcheck");
                LOG.info(srsp.getShard() + " " + nl);
                if (nl != null) {
                    mergeData.totalNumberShardResponses++;
                    collectShardSuggestions(nl, mergeData);
                    collectShardCollations(mergeData, nl, maxCollationTries);
                }
            }
        }
    }

    // all shard responses have been collected
    // create token and get top suggestions
    SolrSpellChecker checker = getSpellChecker(rb.req.getParams());
    SpellingResult result = checker.mergeSuggestions(mergeData, numSug, count, extendedResults);

    NamedList response = new SimpleOrderedMap();
    NamedList suggestions = toNamedList(false, result, origQuery, extendedResults, collate, isCorrectlySpelled);
    if (collate) {
        SpellCheckCollation[] sortedCollations = mergeData.collations.values()
                .toArray(new SpellCheckCollation[mergeData.collations.size()]);
        Arrays.sort(sortedCollations);
        int i = 0;
        while (i < maxCollations && i < sortedCollations.length) {
            SpellCheckCollation collation = sortedCollations[i];
            i++;
            if (collationExtendedResults) {
                NamedList extendedResult = new NamedList();
                extendedResult.add("collationQuery", collation.getCollationQuery());
                extendedResult.add("hits", collation.getHits());
                extendedResult.add("misspellingsAndCorrections", collation.getMisspellingsAndCorrections());
                suggestions.add("collation", extendedResult);
            } else {
                suggestions.add("collation", collation.getCollationQuery());
            }
        }
    }

    response.add("suggestions", suggestions);
    rb.rsp.add("spellcheck", response);
}

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