Example usage for org.apache.lucene.analysis.synonym SynonymGraphFilterFactory SynonymGraphFilterFactory

Introduction

In this page you can find the example usage for org.apache.lucene.analysis.synonym SynonymGraphFilterFactory SynonymGraphFilterFactory.

Prototype

public SynonymGraphFilterFactory(Map<String, String> args) 

Source Link

Usage

From source file:org.apache.solr.rest.schema.analysis.ManagedSynonymGraphFilterFactory.java

License:Apache License

/**
 * Called once, during core initialization, to initialize any analysis components
 * that depend on the data managed by this resource. It is important that the
 * analysis component is only initialized once during core initialization so that
 * text analysis is consistent, especially in a distributed environment, as we
 * don't want one server applying a different set of stop words than other servers.
 *//*  www  . j a v  a 2  s . c  o m*/
@SuppressWarnings("unchecked")
@Override
public void onManagedResourceInitialized(NamedList<?> initArgs, final ManagedResource res)
        throws SolrException {
    NamedList<Object> args = (NamedList<Object>) initArgs;
    args.add("synonyms", getResourceId());
    args.add("expand", "false");
    args.add("format", "solr");

    Map<String, String> filtArgs = new HashMap<>();
    for (Map.Entry<String, ?> entry : args) {
        filtArgs.put(entry.getKey(), entry.getValue().toString());
    }
    // create the actual filter factory that pulls the synonym mappings
    // from synonymMappings using a custom parser implementation
    delegate = new SynonymGraphFilterFactory(filtArgs) {
        @Override
        protected SynonymMap loadSynonyms(ResourceLoader loader, String cname, boolean dedup, Analyzer analyzer)
                throws IOException, ParseException {

            ManagedSynonymParser parser = new ManagedSynonymParser((SynonymManager) res, dedup, analyzer);
            // null is safe here because there's no actual parsing done against a input Reader
            parser.parse(null);
            return parser.build();
        }
    };
    try {
        delegate.inform(res.getResourceLoader());
    } catch (IOException e) {
        throw new SolrException(ErrorCode.SERVER_ERROR, e);
    }
}

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