| 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 | public class JsonIO { |
| 11 | static public JSONObject toJson(MetaData meta) { |
| 12 | if (meta == null) { |
| 13 | return null; |
| 14 | } |
| 15 | |
| 16 | JSONObject json = new JSONObject(); |
| 17 | put(json, "", MetaData.class.getName()); |
| 18 | put(json, "luid", meta.getLuid()); |
| 19 | put(json, "title", meta.getTitle()); |
| 20 | put(json, "author", meta.getAuthor()); |
| 21 | put(json, "source", meta.getSource()); |
| 22 | put(json, "url", meta.getUrl()); |
| 23 | put(json, "words", meta.getWords()); |
| 24 | put(json, "creation_date", meta.getCreationDate()); |
| 25 | put(json, "date", meta.getDate()); |
| 26 | put(json, "lang", meta.getLang()); |
| 27 | put(json, "publisher", meta.getPublisher()); |
| 28 | put(json, "subject", meta.getSubject()); |
| 29 | put(json, "type", meta.getType()); |
| 30 | put(json, "uuid", meta.getUuid()); |
| 31 | put(json, "resume", toJson(meta.getResume())); |
| 32 | put(json, "tags", new JSONArray(meta.getTags())); |
| 33 | |
| 34 | return json; |
| 35 | } |
| 36 | |
| 37 | /** |
| 38 | * |
| 39 | * @param json |
| 40 | * |
| 41 | * @return |
| 42 | * |
| 43 | * @throws JSONException |
| 44 | * when it cannot be converted |
| 45 | */ |
| 46 | static public MetaData toMetaData(JSONObject json) { |
| 47 | if (json == null) { |
| 48 | return null; |
| 49 | } |
| 50 | |
| 51 | MetaData meta = new MetaData(); |
| 52 | meta.setLuid(getString(json, "luid")); |
| 53 | meta.setTitle(getString(json, "title")); |
| 54 | meta.setAuthor(getString(json, "author")); |
| 55 | meta.setSource(getString(json, "source")); |
| 56 | meta.setUrl(getString(json, "url")); |
| 57 | meta.setWords(getLong(json, "words", 0)); |
| 58 | meta.setCreationDate(getString(json, "creation_date")); |
| 59 | meta.setDate(getString(json, "date")); |
| 60 | meta.setLang(getString(json, "lang")); |
| 61 | meta.setPublisher(getString(json, "publisher")); |
| 62 | meta.setSubject(getString(json, "subject")); |
| 63 | meta.setType(getString(json, "type")); |
| 64 | meta.setUuid(getString(json, "uuid")); |
| 65 | |
| 66 | meta.setResume(toChapter(getJson(json, "resume"))); |
| 67 | meta.setTags(toListString(getJsonArr(json, "tags"))); |
| 68 | |
| 69 | return meta; |
| 70 | } |
| 71 | |
| 72 | static public JSONObject toJson(Chapter chap) { |
| 73 | if (chap == null) { |
| 74 | return null; |
| 75 | } |
| 76 | |
| 77 | JSONObject json = new JSONObject(); |
| 78 | |
| 79 | // TODO |
| 80 | |
| 81 | return json; |
| 82 | } |
| 83 | |
| 84 | /** |
| 85 | * |
| 86 | * @param json |
| 87 | * |
| 88 | * @return |
| 89 | * |
| 90 | * @throws JSONException |
| 91 | * when it cannot be converted |
| 92 | */ |
| 93 | static public Chapter toChapter(JSONObject json) { |
| 94 | if (json == null) { |
| 95 | return null; |
| 96 | } |
| 97 | |
| 98 | Chapter chap = new Chapter(0, ""); |
| 99 | |
| 100 | // TODO |
| 101 | |
| 102 | return chap; |
| 103 | } |
| 104 | |
| 105 | static public List<String> toListString(JSONArray array) { |
| 106 | if (array != null) { |
| 107 | List<String> values = new ArrayList<String>(); |
| 108 | for (Object value : array.toList()) { |
| 109 | values.add(value == null ? null : value.toString()); |
| 110 | } |
| 111 | return values; |
| 112 | } |
| 113 | |
| 114 | return null; |
| 115 | } |
| 116 | |
| 117 | static private void put(JSONObject json, String key, Object o) { |
| 118 | json.put(key, o == null ? JSONObject.NULL : o); |
| 119 | } |
| 120 | |
| 121 | static String getString(JSONObject json, String key) { |
| 122 | if (json.has(key)) { |
| 123 | Object o = json.get(key); |
| 124 | if (o instanceof String) { |
| 125 | return (String) o; |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | return null; |
| 130 | } |
| 131 | |
| 132 | static long getLong(JSONObject json, String key, long def) { |
| 133 | if (json.has(key)) { |
| 134 | Object o = json.get(key); |
| 135 | if (o instanceof Long) { |
| 136 | return (Long) o; |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | return def; |
| 141 | } |
| 142 | |
| 143 | static JSONObject getJson(JSONObject json, String key) { |
| 144 | if (json.has(key)) { |
| 145 | Object o = json.get(key); |
| 146 | if (o instanceof JSONObject) { |
| 147 | return (JSONObject) o; |
| 148 | } |
| 149 | } |
| 150 | |
| 151 | return null; |
| 152 | } |
| 153 | |
| 154 | static JSONArray getJsonArr(JSONObject json, String key) { |
| 155 | if (json.has(key)) { |
| 156 | Object o = json.get(key); |
| 157 | if (o instanceof JSONArray) { |
| 158 | return (JSONArray) o; |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | return null; |
| 163 | } |
| 164 | } |