1   /*
2    * Copyright 2017 LINE Corporation
3    *
4    * LINE Corporation licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   https://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  /*
17   * Copyright (c) 2014, Francis Galiegue (fgaliegue@gmail.com)
18   *
19   * This software is dual-licensed under:
20   *
21   * - the Lesser General Public License (LGPL) version 3.0 or, at your option, any
22   *   later version;
23   * - the Apache Software License (ASL) version 2.0.
24   *
25   * The text of this file and of both licenses is available at the root of this
26   * project or, if you have the jar distribution, in directory META-INF/, under
27   * the names LGPL-3.0.txt and ASL-2.0.txt respectively.
28   *
29   * Direct link to the sources:
30   *
31   * - LGPL 3.0: https://www.gnu.org/licenses/lgpl-3.0.txt
32   * - ASL 2.0: https://www.apache.org/licenses/LICENSE-2.0.txt
33   */
34  
35  package com.linecorp.centraldogma.internal.jsonpatch;
36  
37  import java.io.IOException;
38  
39  import com.fasterxml.jackson.core.JsonGenerator;
40  import com.fasterxml.jackson.core.JsonPointer;
41  import com.fasterxml.jackson.databind.SerializerProvider;
42  import com.fasterxml.jackson.databind.annotation.JsonSerialize;
43  import com.fasterxml.jackson.databind.jsontype.TypeSerializer;
44  import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
45  
46  /**
47   * Base class for JSON Patch operations taking two JSON Pointers as arguments.
48   */
49  abstract class DualPathOperation extends JsonPatchOperation {
50  
51      @JsonSerialize(using = ToStringSerializer.class)
52      final JsonPointer from;
53  
54      /**
55       * Creates a new instance.
56       *
57       * @param op operation name
58       * @param from source path
59       * @param path destination path
60       */
61      DualPathOperation(final String op, final JsonPointer from, final JsonPointer path) {
62          super(op, path);
63          this.from = from;
64      }
65  
66      @Override
67      public final void serialize(final JsonGenerator jgen,
68                                  final SerializerProvider provider) throws IOException {
69          jgen.writeStartObject();
70          jgen.writeStringField("op", op);
71          jgen.writeStringField("path", path.toString());
72          jgen.writeStringField("from", from.toString());
73          jgen.writeEndObject();
74      }
75  
76      @Override
77      public final void serializeWithType(final JsonGenerator jgen,
78                                          final SerializerProvider provider, final TypeSerializer typeSer)
79              throws IOException {
80          serialize(jgen, provider);
81      }
82  
83      @Override
84      public final String toString() {
85          return "op: " + op + "; from: \"" + from + "\"; path: \"" + path + '"';
86      }
87  }