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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.shardingsphere.encrypt.rule.column;
19  
20  import lombok.Getter;
21  import lombok.RequiredArgsConstructor;
22  import lombok.Setter;
23  import org.apache.shardingsphere.encrypt.rule.column.item.AssistedQueryColumnItem;
24  import org.apache.shardingsphere.encrypt.rule.column.item.CipherColumnItem;
25  import org.apache.shardingsphere.encrypt.rule.column.item.LikeQueryColumnItem;
26  import org.apache.shardingsphere.encrypt.spi.EncryptAlgorithm;
27  
28  import java.util.Optional;
29  
30  /**
31   * Encrypt column.
32   */
33  @RequiredArgsConstructor
34  @Getter
35  @Setter
36  public final class EncryptColumn {
37      
38      private final String name;
39      
40      private final CipherColumnItem cipher;
41      
42      private AssistedQueryColumnItem assistedQuery;
43      
44      private LikeQueryColumnItem likeQuery;
45      
46      /**
47       * Get assisted query column item.
48       *
49       * @return assisted query column item
50       */
51      public Optional<AssistedQueryColumnItem> getAssistedQuery() {
52          return Optional.ofNullable(assistedQuery);
53      }
54      
55      /**
56       * Get like query column item.
57       *
58       * @return like query column item
59       */
60      public Optional<LikeQueryColumnItem> getLikeQuery() {
61          return Optional.ofNullable(likeQuery);
62      }
63      
64      /**
65       * Get query encryptor.
66       *
67       * @return query encryptor
68       */
69      public EncryptAlgorithm getQueryEncryptor() {
70          return null == assistedQuery ? cipher.getEncryptor() : assistedQuery.getEncryptor();
71      }
72  }