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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.shadow.api.shadow;
19  
20  import java.util.Optional;
21  
22  /**
23   * Operation types supported by shadow.
24   */
25  public enum ShadowOperationType {
26      
27      /**
28       * The shadow operation is insert.
29       */
30      INSERT,
31      
32      /**
33       * The shadow operation is delete.
34       */
35      DELETE,
36      
37      /**
38       * The shadow operation is update.
39       */
40      UPDATE,
41      
42      /**
43       * The shadow operation is select.
44       */
45      SELECT,
46      
47      /**
48       * The shadow operation is SQL hint match.
49       */
50      HINT_MATCH;
51      
52      /**
53       * Contains operation type.
54       *
55       * @param operationType operation type
56       * @return shadow operation type
57       */
58      public static Optional<ShadowOperationType> contains(final String operationType) {
59          if (ShadowOperationType.INSERT.name().equalsIgnoreCase(operationType)) {
60              return Optional.of(ShadowOperationType.INSERT);
61          }
62          if (ShadowOperationType.DELETE.name().equalsIgnoreCase(operationType)) {
63              return Optional.of(ShadowOperationType.DELETE);
64          }
65          if (ShadowOperationType.UPDATE.name().equalsIgnoreCase(operationType)) {
66              return Optional.of(ShadowOperationType.UPDATE);
67          }
68          if (ShadowOperationType.SELECT.name().equalsIgnoreCase(operationType)) {
69              return Optional.of(ShadowOperationType.SELECT);
70          }
71          return Optional.empty();
72      }
73  }