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  package com.linecorp.centraldogma.internal.api.v1;
18  
19  import java.io.IOException;
20  
21  import com.fasterxml.jackson.core.JsonParser;
22  import com.fasterxml.jackson.databind.DeserializationContext;
23  import com.fasterxml.jackson.databind.JsonNode;
24  import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
25  
26  import com.linecorp.centraldogma.common.Markup;
27  
28  /**
29   * Deserializes JSON into a {@link CommitMessageDto}.
30   */
31  public class CommitMessageDtoDeserializer extends StdDeserializer<CommitMessageDto> {
32  
33      private static final long serialVersionUID = 6588840723287439409L;
34  
35      protected CommitMessageDtoDeserializer() {
36          super(CommitMessageDto.class);
37      }
38  
39      @Override
40      public CommitMessageDto deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
41          final JsonNode jsonNode = p.readValueAsTree();
42          final JsonNode summary = jsonNode.get("summary");
43          if (summary == null || summary.textValue() == null) {
44              ctxt.reportInputMismatch(CommitMessageDto.class, "commit message should have a summary.");
45              // should never reach here
46              throw new Error();
47          }
48  
49          final String detail = jsonNode.get("detail") == null ? "" : jsonNode.get("detail").textValue();
50          final JsonNode markupNode = jsonNode.get("markup");
51          final Markup markup = Markup.parse(markupNode == null ? "unknown" : markupNode.textValue());
52          return new CommitMessageDto(summary.textValue(), detail, markup);
53      }
54  }