Example usage for org.apache.solr.spelling.suggest SolrSuggester getSuggestions

Introduction

In this page you can find the example usage for org.apache.solr.spelling.suggest SolrSuggester getSuggestions.

Prototype

public SuggesterResult getSuggestions(SuggesterOptions options) throws IOException 

Source Link

Document

Returns suggestions based on the SuggesterOptions passed

Usage

From source file:org.alfresco.solr.component.AsyncBuildSuggestComponent.java

License:Open Source License

/** 
 * Responsible for using the specified suggester to get the suggestions 
 * for the query and write the results /*www.  j a  v a2s. c o  m*/
 * */
@Override
public void process(ResponseBuilder rb) throws IOException {
    SolrParams params = rb.req.getParams();
    LOG.debug("SuggestComponent process with : " + params);
    if (!params.getBool(COMPONENT_NAME, false) || suggesters.isEmpty()) {
        return;
    }

    boolean buildAll = params.getBool(SUGGEST_BUILD_ALL, false);
    boolean reloadAll = params.getBool(SUGGEST_RELOAD_ALL, false);
    Set<SolrSuggester> querySuggesters;
    try {
        querySuggesters = getSuggesters(params);
    } catch (IllegalArgumentException ex) {
        if (!buildAll && !reloadAll) {
            throw ex;
        } else {
            querySuggesters = new HashSet<>();
        }
    }

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

    if (query != null) {
        int count = params.getInt(SUGGEST_COUNT, 1);

        boolean highlight = params.getBool(SUGGEST_HIGHLIGHT, false);
        boolean allTermsRequired = params.getBool(SUGGEST_ALL_TERMS_REQUIRED, true);
        String contextFilter = params.get(SUGGEST_CONTEXT_FILTER_QUERY);
        if (contextFilter != null) {
            contextFilter = contextFilter.trim();
            if (contextFilter.length() == 0) {
                contextFilter = null;
            }
        }

        SuggesterOptions options = new SuggesterOptions(new CharsRef(query), count, contextFilter,
                allTermsRequired, highlight);
        Map<String, SimpleOrderedMap<NamedList<Object>>> namedListResults = new HashMap<>();
        for (SolrSuggester suggester : querySuggesters) {
            SuggesterResult suggesterResult = suggester.getSuggestions(options);
            toNamedList(suggesterResult, namedListResults);
        }
        rb.rsp.add(SuggesterResultLabels.SUGGEST, namedListResults);
    }
}

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