New web library (http/https)

[fanfix.git] / src / be / nikiroo / fanfix / data / JsonIO.java

diff --git a/src/be/nikiroo/fanfix/data/JsonIO.java b/src/be/nikiroo/fanfix/data/JsonIO.java
new file mode 100644 (file)
index 0000000..db81db6
--- /dev/null
+++ b/src/be/nikiroo/fanfix/data/JsonIO.java
@@ -0,0 +1,164 @@
+package be.nikiroo.fanfix.data;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+public class JsonIO {
+       static public JSONObject toJson(MetaData meta) {
+               if (meta == null) {
+                       return null;
+               }
+
+               JSONObject json = new JSONObject();
+               put(json, "", MetaData.class.getName());
+               put(json, "luid", meta.getLuid());
+               put(json, "title", meta.getTitle());
+               put(json, "author", meta.getAuthor());
+               put(json, "source", meta.getSource());
+               put(json, "url", meta.getUrl());
+               put(json, "words", meta.getWords());
+               put(json, "creation_date", meta.getCreationDate());
+               put(json, "date", meta.getDate());
+               put(json, "lang", meta.getLang());
+               put(json, "publisher", meta.getPublisher());
+               put(json, "subject", meta.getSubject());
+               put(json, "type", meta.getType());
+               put(json, "uuid", meta.getUuid());
+               put(json, "resume", toJson(meta.getResume()));
+               put(json, "tags", new JSONArray(meta.getTags()));
+
+               return json;
+       }
+
+       /**
+        * 
+        * @param json
+        * 
+        * @return
+        * 
+        * @throws JSONException
+        *             when it cannot be converted
+        */
+       static public MetaData toMetaData(JSONObject json) {
+               if (json == null) {
+                       return null;
+               }
+
+               MetaData meta = new MetaData();
+               meta.setLuid(getString(json, "luid"));
+               meta.setTitle(getString(json, "title"));
+               meta.setAuthor(getString(json, "author"));
+               meta.setSource(getString(json, "source"));
+               meta.setUrl(getString(json, "url"));
+               meta.setWords(getLong(json, "words", 0));
+               meta.setCreationDate(getString(json, "creation_date"));
+               meta.setDate(getString(json, "date"));
+               meta.setLang(getString(json, "lang"));
+               meta.setPublisher(getString(json, "publisher"));
+               meta.setSubject(getString(json, "subject"));
+               meta.setType(getString(json, "type"));
+               meta.setUuid(getString(json, "uuid"));
+
+               meta.setResume(toChapter(getJson(json, "resume")));
+               meta.setTags(toListString(getJsonArr(json, "tags")));
+
+               return meta;
+       }
+
+       static public JSONObject toJson(Chapter chap) {
+               if (chap == null) {
+                       return null;
+               }
+
+               JSONObject json = new JSONObject();
+
+               // TODO
+
+               return json;
+       }
+
+       /**
+        * 
+        * @param json
+        * 
+        * @return
+        * 
+        * @throws JSONException
+        *             when it cannot be converted
+        */
+       static public Chapter toChapter(JSONObject json) {
+               if (json == null) {
+                       return null;
+               }
+
+               Chapter chap = new Chapter(0, "");
+
+               // TODO
+
+               return chap;
+       }
+
+       static public List<String> toListString(JSONArray array) {
+               if (array != null) {
+                       List<String> values = new ArrayList<String>();
+                       for (Object value : array.toList()) {
+                               values.add(value == null ? null : value.toString());
+                       }
+                       return values;
+               }
+
+               return null;
+       }
+
+       static private void put(JSONObject json, String key, Object o) {
+               json.put(key, o == null ? JSONObject.NULL : o);
+       }
+
+       static String getString(JSONObject json, String key) {
+               if (json.has(key)) {
+                       Object o = json.get(key);
+                       if (o instanceof String) {
+                               return (String) o;
+                       }
+               }
+
+               return null;
+       }
+
+       static long getLong(JSONObject json, String key, long def) {
+               if (json.has(key)) {
+                       Object o = json.get(key);
+                       if (o instanceof Long) {
+                               return (Long) o;
+                       }
+               }
+
+               return def;
+       }
+
+       static JSONObject getJson(JSONObject json, String key) {
+               if (json.has(key)) {
+                       Object o = json.get(key);
+                       if (o instanceof JSONObject) {
+                               return (JSONObject) o;
+                       }
+               }
+
+               return null;
+       }
+
+       static JSONArray getJsonArr(JSONObject json, String key) {
+               if (json.has(key)) {
+                       Object o = json.get(key);
+                       if (o instanceof JSONArray) {
+                               return (JSONArray) o;
+                       }
+               }
+
+               return null;
+       }
+}