001 /*
002 * SonarQube, open source software quality management tool.
003 * Copyright (C) 2008-2014 SonarSource
004 * mailto:contact AT sonarsource DOT com
005 *
006 * SonarQube is free software; you can redistribute it and/or
007 * modify it under the terms of the GNU Lesser General Public
008 * License as published by the Free Software Foundation; either
009 * version 3 of the License, or (at your option) any later version.
010 *
011 * SonarQube is distributed in the hope that it will be useful,
012 * but WITHOUT ANY WARRANTY; without even the implied warranty of
013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 * Lesser General Public License for more details.
015 *
016 * You should have received a copy of the GNU Lesser General Public License
017 * along with this program; if not, write to the Free Software Foundation,
018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
019 */
020 package org.sonar.wsclient.unmarshallers;
021
022 import org.json.simple.JSONArray;
023
024 import javax.annotation.CheckForNull;
025
026 import java.text.ParseException;
027 import java.text.SimpleDateFormat;
028 import java.util.Date;
029 import java.util.Map;
030
031 // Godin: we will use raw types here, because typically JSONObject passed as an argument
032 @SuppressWarnings("rawtypes")
033 public final class JsonUtils {
034
035 private JsonUtils() {
036 // only static methods
037 }
038
039 @CheckForNull
040 public static String getString(Map obj, String field) {
041 Object value = obj.get(field);
042 if (value instanceof String || value instanceof Number) {
043 return value.toString();
044 }
045 return null;
046 }
047
048 @CheckForNull
049 public static Integer getInteger(Map obj, String field) {
050 Object value = obj.get(field);
051 if (value != null) {
052 return ((Long) value).intValue();
053 }
054 return null;
055 }
056
057 @CheckForNull
058 public static Boolean getBoolean(Map obj, String field) {
059 Object value = obj.get(field);
060 if (value != null) {
061 return (Boolean) value;
062 }
063 return null;
064 }
065
066 @CheckForNull
067 public static Long getLong(Map obj, String field) {
068 Object value = obj.get(field);
069 if (value != null) {
070 return (Long) value;
071 }
072 return null;
073 }
074
075 @CheckForNull
076 public static Double getDouble(Map obj, String field) {
077 Object value = obj.get(field);
078 if (value != null) {
079 if (value instanceof Long) {
080 return ((Long) value).doubleValue();
081 }
082 return (Double) value;
083 }
084 return null;
085 }
086
087 /**
088 * @since 2.5
089 */
090 @CheckForNull
091 public static JSONArray getArray(Map obj, String field) {
092 return (JSONArray) obj.get(field);
093 }
094
095 @CheckForNull
096 public static Date getDateTime(Map obj, String field) {
097 return parseDate(obj, field, "yyyy-MM-dd'T'HH:mm:ssZ");
098 }
099
100 @CheckForNull
101 public static Date getDate(Map obj, String field) {
102 return parseDate(obj, field, "yyyy-MM-dd");
103 }
104
105 @CheckForNull
106 private static Date parseDate(Map obj, String field, String format) {
107 String value = getString(obj, field);
108 if (value != null) {
109 try {
110 SimpleDateFormat dateFormat = new SimpleDateFormat(format);
111 return dateFormat.parse(value);
112
113 } catch (ParseException e) {
114 throw new IllegalArgumentException("Fail to parse date property '" + field + "': " + format, e);
115 }
116 }
117 return null;
118 }
119
120 }