01: /*
02: * Copyright 2004-2006 the original author or authors.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16:
17: package org.compass.core.lucene.engine.query;
18:
19: import java.util.ArrayList;
20:
21: import org.compass.core.engine.SearchEngineQueryFilterBuilder;
22: import org.compass.core.engine.SearchEngineQueryFilter;
23: import org.compass.core.lucene.util.ChainedFilter;
24: import org.compass.core.lucene.engine.LuceneSearchEngineQueryFilter;
25: import org.apache.lucene.search.Filter;
26:
27: /**
28: * @author kimchy
29: */
30: public class LuceneSearchEngineBooleanQueryFilterBuilder
31: implements
32: SearchEngineQueryFilterBuilder.SearchEngineBooleanQueryFilterBuilder {
33:
34: private ArrayList types = new ArrayList();
35:
36: private ArrayList filters = new ArrayList();
37:
38: public LuceneSearchEngineBooleanQueryFilterBuilder() {
39:
40: }
41:
42: public void and(SearchEngineQueryFilter filter) {
43: types.add(ChainedFilter.ChainedFilterType.AND);
44: filters.add(((LuceneSearchEngineQueryFilter) filter)
45: .getFilter());
46: }
47:
48: public void or(SearchEngineQueryFilter filter) {
49: types.add(ChainedFilter.ChainedFilterType.OR);
50: filters.add(((LuceneSearchEngineQueryFilter) filter)
51: .getFilter());
52: }
53:
54: public void andNot(SearchEngineQueryFilter filter) {
55: types.add(ChainedFilter.ChainedFilterType.ANDNOT);
56: filters.add(((LuceneSearchEngineQueryFilter) filter)
57: .getFilter());
58: }
59:
60: public void xor(SearchEngineQueryFilter filter) {
61: types.add(ChainedFilter.ChainedFilterType.XOR);
62: filters.add(((LuceneSearchEngineQueryFilter) filter)
63: .getFilter());
64: }
65:
66: public SearchEngineQueryFilter toFilter() {
67: if (filters.size() == 0) {
68: throw new IllegalArgumentException(
69: "Must add at least one filter");
70: }
71: Filter[] filtersArr = (Filter[]) filters
72: .toArray(new Filter[filters.size()]);
73: ChainedFilter.ChainedFilterType[] typesArr = (ChainedFilter.ChainedFilterType[]) types
74: .toArray(new ChainedFilter.ChainedFilterType[types
75: .size()]);
76: return new LuceneSearchEngineQueryFilter(new ChainedFilter(
77: filtersArr, typesArr));
78: }
79: }
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