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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.domain.ChangelogItem;
20  import org.codehaus.jettison.json.JSONException;
21  import org.codehaus.jettison.json.JSONObject;
22  
23  public class ChangelogItemJsonParser implements JsonObjectParser<ChangelogItem> {
24  	@Override
25  	public ChangelogItem parse(JSONObject json) throws JSONException {
26  		final String fieldTypeStr = JsonParseUtil.getNestedString(json, "fieldtype");
27  		final ChangelogItem.FieldType fieldType;
28  		if ("jira".equalsIgnoreCase(fieldTypeStr)) {
29  			fieldType = ChangelogItem.FieldType.JIRA;
30  		} else if ("custom".equalsIgnoreCase(fieldTypeStr)) {
31  			fieldType = ChangelogItem.FieldType.CUSTOM;
32  		} else {
33  			throw new JSONException("[" + fieldTypeStr + "] does not represent a valid field type. Expected [jira] or [custom].");
34  		}
35  		final String field = JsonParseUtil.getNestedString(json, "field");
36  		final String from = JsonParseUtil.getNullableString(json, "from");
37  		final String fromString = JsonParseUtil.getNullableString(json, "fromString");
38  		final String to = JsonParseUtil.getNullableString(json, "to");
39  		final String toString = JsonParseUtil.getNullableString(json, "toString");
40  		return new ChangelogItem(fieldType, field, from, fromString, to, toString);
41  	}
42  }