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1   /*
2    * Copyright (C) 2012 Atlassian
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://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,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package com.atlassian.jira.rest.client.internal.json;
18  
19  import com.atlassian.jira.rest.client.api.domain.ChangelogItem;
20  import com.atlassian.jira.rest.client.api.domain.FieldType;
21  import org.codehaus.jettison.json.JSONException;
22  import org.codehaus.jettison.json.JSONObject;
23  
24  public class ChangelogItemJsonParser implements JsonObjectParser<ChangelogItem> {
25      @Override
26      public ChangelogItem parse(JSONObject json) throws JSONException {
27          final String fieldTypeStr = JsonParseUtil.getNestedString(json, "fieldtype");
28          final FieldType fieldType;
29          if ("jira".equalsIgnoreCase(fieldTypeStr)) {
30              fieldType = FieldType.JIRA;
31          } else if ("custom".equalsIgnoreCase(fieldTypeStr)) {
32              fieldType = FieldType.CUSTOM;
33          } else {
34              throw new JSONException("[" + fieldTypeStr + "] does not represent a valid field type. Expected [jira] or [custom].");
35          }
36          final String field = JsonParseUtil.getNestedString(json, "field");
37          final String from = JsonParseUtil.getNullableString(json, "from");
38          final String fromString = JsonParseUtil.getNullableString(json, "fromString");
39          final String to = JsonParseUtil.getNullableString(json, "to");
40          final String toString = JsonParseUtil.getNullableString(json, "toString");
41          return new ChangelogItem(fieldType, field, from, fromString, to, toString);
42      }
43  }