Examples with FuzzySuggester org.apache.lucene.search.suggest.analyzing.FuzzySuggester used on opensource projects

Example 1 with FuzzySuggester

use of org.apache.lucene.search.suggest.analyzing.FuzzySuggester in project lucene-solr by apache.

the class FuzzyLookupFactory method create.

@Override
public Lookup create(NamedList params, SolrCore core) {
    // mandatory parameter
    Object fieldTypeName = params.get(AnalyzingLookupFactory.QUERY_ANALYZER);
    if (fieldTypeName == null) {
        throw new IllegalArgumentException("Error in configuration: " + AnalyzingLookupFactory.QUERY_ANALYZER + " parameter is mandatory");
    }
    // retrieve index and query analyzers for the field
    FieldType ft = core.getLatestSchema().getFieldTypeByName(fieldTypeName.toString());
    if (ft == null) {
        throw new IllegalArgumentException("Error in configuration: " + fieldTypeName.toString() + " is not defined in the schema");
    }
    Analyzer indexAnalyzer = ft.getIndexAnalyzer();
    Analyzer queryAnalyzer = ft.getQueryAnalyzer();
    // optional parameters
    boolean exactMatchFirst = (params.get(AnalyzingLookupFactory.EXACT_MATCH_FIRST) != null) ? Boolean.valueOf(params.get(AnalyzingLookupFactory.EXACT_MATCH_FIRST).toString()) : true;
    boolean preserveSep = (params.get(AnalyzingLookupFactory.PRESERVE_SEP) != null) ? Boolean.valueOf(params.get(AnalyzingLookupFactory.PRESERVE_SEP).toString()) : true;
    int options = 0;
    if (exactMatchFirst) {
        options |= FuzzySuggester.EXACT_FIRST;
    }
    if (preserveSep) {
        options |= FuzzySuggester.PRESERVE_SEP;
    }
    int maxSurfaceFormsPerAnalyzedForm = (params.get(AnalyzingLookupFactory.MAX_SURFACE_FORMS) != null) ? Integer.parseInt(params.get(AnalyzingLookupFactory.MAX_SURFACE_FORMS).toString()) : 256;
    int maxGraphExpansions = (params.get(AnalyzingLookupFactory.MAX_EXPANSIONS) != null) ? Integer.parseInt(params.get(AnalyzingLookupFactory.MAX_EXPANSIONS).toString()) : -1;
    boolean preservePositionIncrements = params.get(AnalyzingLookupFactory.PRESERVE_POSITION_INCREMENTS) != null ? Boolean.valueOf(params.get(AnalyzingLookupFactory.PRESERVE_POSITION_INCREMENTS).toString()) : false;
    int maxEdits = (params.get(MAX_EDITS) != null) ? Integer.parseInt(params.get(MAX_EDITS).toString()) : FuzzySuggester.DEFAULT_MAX_EDITS;
    boolean transpositions = (params.get(TRANSPOSITIONS) != null) ? Boolean.parseBoolean(params.get(TRANSPOSITIONS).toString()) : FuzzySuggester.DEFAULT_TRANSPOSITIONS;
    int nonFuzzyPrefix = (params.get(NON_FUZZY_PREFIX) != null) ? Integer.parseInt(params.get(NON_FUZZY_PREFIX).toString()) : FuzzySuggester.DEFAULT_NON_FUZZY_PREFIX;
    int minFuzzyLength = (params.get(MIN_FUZZY_LENGTH) != null) ? Integer.parseInt(params.get(MIN_FUZZY_LENGTH).toString()) : FuzzySuggester.DEFAULT_MIN_FUZZY_LENGTH;
    boolean unicodeAware = (params.get(UNICODE_AWARE) != null) ? Boolean.valueOf(params.get(UNICODE_AWARE).toString()) : FuzzySuggester.DEFAULT_UNICODE_AWARE;
    return new FuzzySuggester(getTempDir(), "suggester", indexAnalyzer, queryAnalyzer, options, maxSurfaceFormsPerAnalyzedForm, maxGraphExpansions, preservePositionIncrements, maxEdits, transpositions, nonFuzzyPrefix, minFuzzyLength, unicodeAware);
}