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1 package org.apache.lucene.queryParser.standard.config;
2
3 /**
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
8 * (the "License"); you may not use this file except in compliance with
9 * the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 */
19
20 import org.apache.lucene.queryParser.core.config.FieldConfig;
21 import org.apache.lucene.queryParser.core.config.FieldConfigListener;
22 import org.apache.lucene.queryParser.core.config.QueryConfigHandler;
23
24 /**
25 * This listener listens for every field configuration request and assign a
26 * {@link BoostAttribute} to the equivalent {@link FieldConfig} based on a
27 * defined map: fieldName -> boostValue store in {@link FieldBoostMapAttribute}
28 * in the {@link FieldBoostMapAttribute}.
29 *
30 * @see BoostAttribute
31 * @see FieldBoostMapAttribute
32 * @see FieldConfig
33 * @see FieldConfigListener
34 */
35 public class FieldBoostMapFCListener implements FieldConfigListener {
36
37 private static final long serialVersionUID = -5929802948798314067L;
38
39 private QueryConfigHandler config = null;
40
41 public FieldBoostMapFCListener(QueryConfigHandler config) {
42 this.config = config;
43 }
44
45 public void buildFieldConfig(FieldConfig fieldConfig) {
46 if (this.config.hasAttribute(FieldBoostMapAttribute.class)) {
47 FieldBoostMapAttribute fieldBoostMapAttr = this.config.getAttribute(FieldBoostMapAttribute.class);
48 BoostAttribute boostAttr = fieldConfig.addAttribute(BoostAttribute.class);
49
50 Float boost = fieldBoostMapAttr.getFieldBoostMap().get(fieldConfig.getFieldName());
51
52 if (boost != null) {
53 boostAttr.setBoost(boost.floatValue());
54 }
55
56 }
57 }
58
59 }