| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.solr.spelling.suggest; |
| |
| import java.io.IOException; |
| import java.io.InputStreamReader; |
| import java.nio.charset.StandardCharsets; |
| |
| import org.apache.lucene.search.spell.Dictionary; |
| import org.apache.lucene.search.suggest.FileDictionary; |
| import org.apache.solr.core.SolrCore; |
| import org.apache.solr.search.SolrIndexSearcher; |
| |
| /** |
| * Factory for {@link FileDictionary} |
| */ |
| public class FileDictionaryFactory extends DictionaryFactory { |
| |
| /** Label for defining fieldDelimiter to be used */ |
| public static final String FIELD_DELIMITER = "fieldDelimiter"; |
| |
| @Override |
| public Dictionary create(SolrCore core, SolrIndexSearcher searcher) { |
| if (params == null) { |
| // should not happen; implies setParams was not called |
| throw new IllegalStateException("Value of params not set"); |
| } |
| |
| String sourceLocation = (String)params.get(Suggester.LOCATION); |
| |
| if (sourceLocation == null) { |
| throw new IllegalArgumentException(Suggester.LOCATION + " parameter is mandatory for using FileDictionary"); |
| } |
| |
| String fieldDelimiter = (params.get(FIELD_DELIMITER) != null) |
| ? (String) params.get(FIELD_DELIMITER) : |
| FileDictionary.DEFAULT_FIELD_DELIMITER; |
| |
| try { |
| return new FileDictionary(new InputStreamReader( |
| core.getResourceLoader().openResource(sourceLocation), StandardCharsets.UTF_8), fieldDelimiter); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| } |