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.item;
19
20 import lombok.Getter;
21 import lombok.RequiredArgsConstructor;
22 import org.apache.shardingsphere.encrypt.spi.EncryptAlgorithm;
23 import org.apache.shardingsphere.infra.algorithm.core.context.AlgorithmSQLContext;
24
25 import java.util.LinkedList;
26 import java.util.List;
27
28 /**
29 * Cipher column item.
30 */
31 @RequiredArgsConstructor
32 @Getter
33 public final class CipherColumnItem {
34
35 private final String name;
36
37 private final EncryptAlgorithm encryptor;
38
39 /**
40 * Encrypt.
41 *
42 * @param databaseName database name
43 * @param schemaName schema name
44 * @param tableName table name
45 * @param logicColumnName logic column name
46 * @param originalValue original value
47 * @return encrypted value
48 */
49 public Object encrypt(final String databaseName, final String schemaName, final String tableName, final String logicColumnName, final Object originalValue) {
50 if (null == originalValue) {
51 return null;
52 }
53 return encryptor.encrypt(originalValue, new AlgorithmSQLContext(databaseName, schemaName, tableName, logicColumnName));
54 }
55
56 /**
57 * Encrypt.
58 *
59 * @param databaseName database name
60 * @param schemaName schema name
61 * @param tableName table name
62 * @param logicColumnName logic column name
63 * @param originalValues original values
64 * @return encrypted values
65 */
66 public List<Object> encrypt(final String databaseName, final String schemaName, final String tableName, final String logicColumnName, final List<Object> originalValues) {
67 AlgorithmSQLContext algorithmSQLContext = new AlgorithmSQLContext(databaseName, schemaName, tableName, logicColumnName);
68 List<Object> result = new LinkedList<>();
69 for (Object each : originalValues) {
70 result.add(null == each ? null : encryptor.encrypt(each, algorithmSQLContext));
71 }
72 return result;
73 }
74
75 /**
76 * Decrypt.
77 *
78 * @param databaseName database name
79 * @param schemaName schema name
80 * @param tableName table name
81 * @param logicColumnName logic column name
82 * @param cipherValue cipher value
83 * @return decrypted value
84 */
85 public Object decrypt(final String databaseName, final String schemaName, final String tableName, final String logicColumnName, final Object cipherValue) {
86 if (null == cipherValue) {
87 return null;
88 }
89 return encryptor.decrypt(cipherValue, new AlgorithmSQLContext(databaseName, schemaName, tableName, logicColumnName));
90 }
91 }