| 1 | package be.nikiroo.fanfix.data; |
| 2 | |
| 3 | import java.util.ArrayList; |
| 4 | import java.util.List; |
| 5 | |
| 6 | import org.json.JSONArray; |
| 7 | import org.json.JSONException; |
| 8 | import org.json.JSONObject; |
| 9 | |
| 10 | import be.nikiroo.fanfix.data.Paragraph.ParagraphType; |
| 11 | |
| 12 | public class JsonIO { |
| 13 | static public JSONObject toJson(MetaData meta) { |
| 14 | if (meta == null) { |
| 15 | return null; |
| 16 | } |
| 17 | |
| 18 | JSONObject json = new JSONObject(); |
| 19 | put(json, "", MetaData.class.getName()); |
| 20 | put(json, "luid", meta.getLuid()); |
| 21 | put(json, "title", meta.getTitle()); |
| 22 | put(json, "author", meta.getAuthor()); |
| 23 | put(json, "source", meta.getSource()); |
| 24 | put(json, "url", meta.getUrl()); |
| 25 | put(json, "words", meta.getWords()); |
| 26 | put(json, "creation_date", meta.getCreationDate()); |
| 27 | put(json, "date", meta.getDate()); |
| 28 | put(json, "lang", meta.getLang()); |
| 29 | put(json, "publisher", meta.getPublisher()); |
| 30 | put(json, "subject", meta.getSubject()); |
| 31 | put(json, "type", meta.getType()); |
| 32 | put(json, "uuid", meta.getUuid()); |
| 33 | put(json, "resume", toJson(meta.getResume())); |
| 34 | put(json, "tags", new JSONArray(meta.getTags())); |
| 35 | |
| 36 | return json; |
| 37 | } |
| 38 | |
| 39 | /** |
| 40 | * // no image |
| 41 | * |
| 42 | * @param json |
| 43 | * |
| 44 | * @return |
| 45 | * |
| 46 | * @throws JSONException |
| 47 | * when it cannot be converted |
| 48 | */ |
| 49 | static public MetaData toMetaData(JSONObject json) { |
| 50 | if (json == null) { |
| 51 | return null; |
| 52 | } |
| 53 | |
| 54 | MetaData meta = new MetaData(); |
| 55 | meta.setLuid(getString(json, "luid")); |
| 56 | meta.setTitle(getString(json, "title")); |
| 57 | meta.setAuthor(getString(json, "author")); |
| 58 | meta.setSource(getString(json, "source")); |
| 59 | meta.setUrl(getString(json, "url")); |
| 60 | meta.setWords(getLong(json, "words", 0)); |
| 61 | meta.setCreationDate(getString(json, "creation_date")); |
| 62 | meta.setDate(getString(json, "date")); |
| 63 | meta.setLang(getString(json, "lang")); |
| 64 | meta.setPublisher(getString(json, "publisher")); |
| 65 | meta.setSubject(getString(json, "subject")); |
| 66 | meta.setType(getString(json, "type")); |
| 67 | meta.setUuid(getString(json, "uuid")); |
| 68 | |
| 69 | meta.setResume(toChapter(getJson(json, "resume"))); |
| 70 | meta.setTags(toListString(getJsonArr(json, "tags"))); |
| 71 | |
| 72 | return meta; |
| 73 | } |
| 74 | |
| 75 | static public JSONObject toJson(Story story) { |
| 76 | if (story == null) { |
| 77 | return null; |
| 78 | } |
| 79 | |
| 80 | JSONObject json = new JSONObject(); |
| 81 | put(json, "", Story.class.getName()); |
| 82 | put(json, "meta", toJson(story.getMeta())); |
| 83 | |
| 84 | List<JSONObject> chapters = new ArrayList<JSONObject>(); |
| 85 | for (Chapter chap : story) { |
| 86 | chapters.add(toJson(chap)); |
| 87 | } |
| 88 | put(json, "chapters", new JSONArray(chapters)); |
| 89 | |
| 90 | return json; |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * |
| 95 | * @param json |
| 96 | * |
| 97 | * @return |
| 98 | * |
| 99 | * @throws JSONException |
| 100 | * when it cannot be converted |
| 101 | */ |
| 102 | static public Story toStory(JSONObject json) { |
| 103 | if (json == null) { |
| 104 | return null; |
| 105 | } |
| 106 | |
| 107 | Story story = new Story(); |
| 108 | story.setMeta(toMetaData(getJson(json,"meta"))); |
| 109 | story.setChapters(toListChapter(getJsonArr(json, "chapters"))); |
| 110 | |
| 111 | return story; |
| 112 | } |
| 113 | |
| 114 | static public JSONObject toJson(Chapter chap) { |
| 115 | if (chap == null) { |
| 116 | return null; |
| 117 | } |
| 118 | |
| 119 | JSONObject json = new JSONObject(); |
| 120 | put(json, "", Chapter.class.getName()); |
| 121 | put(json, "name", chap.getName()); |
| 122 | put(json, "number", chap.getNumber()); |
| 123 | put(json, "words", chap.getWords()); |
| 124 | |
| 125 | List<JSONObject> paragraphs = new ArrayList<JSONObject>(); |
| 126 | for (Paragraph para : chap) { |
| 127 | paragraphs.add(toJson(para)); |
| 128 | } |
| 129 | put(json, "paragraphs", new JSONArray(paragraphs)); |
| 130 | |
| 131 | return json; |
| 132 | } |
| 133 | |
| 134 | /** |
| 135 | * |
| 136 | * @param json |
| 137 | * |
| 138 | * @return |
| 139 | * |
| 140 | * @throws JSONException |
| 141 | * when it cannot be converted |
| 142 | */ |
| 143 | static public Chapter toChapter(JSONObject json) { |
| 144 | if (json == null) { |
| 145 | return null; |
| 146 | } |
| 147 | |
| 148 | Chapter chap = new Chapter(getInt(json, "number", 0), |
| 149 | getString(json, "name")); |
| 150 | chap.setWords(getLong(json, "words", 0)); |
| 151 | chap.setParagraphs(toListParagraph(getJsonArr(json, "paragraphs"))); |
| 152 | |
| 153 | return chap; |
| 154 | } |
| 155 | |
| 156 | // no images |
| 157 | static public JSONObject toJson(Paragraph para) { |
| 158 | if (para == null) { |
| 159 | return null; |
| 160 | } |
| 161 | |
| 162 | JSONObject json = new JSONObject(); |
| 163 | put(json, "", Paragraph.class.getName()); |
| 164 | put(json, "type", para.getType()); |
| 165 | put(json, "content", para.getContent()); |
| 166 | put(json, "words", para.getWords()); |
| 167 | |
| 168 | return json; |
| 169 | } |
| 170 | |
| 171 | /** |
| 172 | * // no images |
| 173 | * |
| 174 | * @param json |
| 175 | * |
| 176 | * @return |
| 177 | * |
| 178 | * @throws JSONException |
| 179 | * when it cannot be converted |
| 180 | */ |
| 181 | static public Paragraph toParagraph(JSONObject json) { |
| 182 | if (json == null) { |
| 183 | return null; |
| 184 | } |
| 185 | |
| 186 | Paragraph para = new Paragraph( |
| 187 | ParagraphType.valueOf(getString(json, "type")), |
| 188 | getString(json, "content"), getLong(json, "words", 0)); |
| 189 | |
| 190 | return para; |
| 191 | } |
| 192 | |
| 193 | static public List<String> toListString(JSONArray array) { |
| 194 | if (array != null) { |
| 195 | List<String> values = new ArrayList<String>(); |
| 196 | for (Object value : array.toList()) { |
| 197 | values.add(value == null ? null : value.toString()); |
| 198 | } |
| 199 | return values; |
| 200 | } |
| 201 | |
| 202 | return null; |
| 203 | } |
| 204 | |
| 205 | static public List<Paragraph> toListParagraph(JSONArray array) { |
| 206 | if (array != null) { |
| 207 | List<Paragraph> values = new ArrayList<Paragraph>(); |
| 208 | for (Object value : array.toList()) { |
| 209 | values.add( |
| 210 | value instanceof Paragraph ? (Paragraph) value : null); |
| 211 | } |
| 212 | return values; |
| 213 | } |
| 214 | |
| 215 | return null; |
| 216 | } |
| 217 | |
| 218 | private static List<Chapter> toListChapter(JSONArray array) { |
| 219 | if (array != null) { |
| 220 | List<Chapter> values = new ArrayList<Chapter>(); |
| 221 | for (Object value : array.toList()) { |
| 222 | values.add(value instanceof Chapter ? (Chapter) value : null); |
| 223 | } |
| 224 | return values; |
| 225 | } |
| 226 | |
| 227 | return null; |
| 228 | } |
| 229 | |
| 230 | static private void put(JSONObject json, String key, Object o) { |
| 231 | json.put(key, o == null ? JSONObject.NULL : o); |
| 232 | } |
| 233 | |
| 234 | static String getString(JSONObject json, String key) { |
| 235 | if (json.has(key)) { |
| 236 | Object o = json.get(key); |
| 237 | if (o instanceof String) { |
| 238 | return (String) o; |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | return null; |
| 243 | } |
| 244 | |
| 245 | static long getLong(JSONObject json, String key, long def) { |
| 246 | if (json.has(key)) { |
| 247 | Object o = json.get(key); |
| 248 | if (o instanceof Long) { |
| 249 | return (Long) o; |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | return def; |
| 254 | } |
| 255 | |
| 256 | static int getInt(JSONObject json, String key, int def) { |
| 257 | if (json.has(key)) { |
| 258 | Object o = json.get(key); |
| 259 | if (o instanceof Integer) { |
| 260 | return (Integer) o; |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | return def; |
| 265 | } |
| 266 | |
| 267 | static JSONObject getJson(JSONObject json, String key) { |
| 268 | if (json.has(key)) { |
| 269 | Object o = json.get(key); |
| 270 | if (o instanceof JSONObject) { |
| 271 | return (JSONObject) o; |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | return null; |
| 276 | } |
| 277 | |
| 278 | static JSONArray getJsonArr(JSONObject json, String key) { |
| 279 | if (json.has(key)) { |
| 280 | Object o = json.get(key); |
| 281 | if (o instanceof JSONArray) { |
| 282 | return (JSONArray) o; |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | return null; |
| 287 | } |
| 288 | } |