/** * Construct a JSONObject from a ResourceBundle. * * @param baseName The ResourceBundle base name. * @param locale The Locale to load the ResourceBundle for. * @throws JSONException If any JSONExceptions are detected. */ public JSONObject(String baseName, Locale locale) throws JSONException { this(); ResourceBundle bundle = ResourceBundle.getBundle(baseName, locale, Thread.currentThread().getContextClassLoader()); // Iterate through the keys in the bundle. Enumeration keys = bundle.getKeys(); while (keys.hasMoreElements()) { Object key = keys.nextElement(); if (key instanceof String) { // Go through the path, ensuring that there is a nested JSONObject for each // segment except the last. Add the value using the last segment's name into // the deepest nested JSONObject. String[] path = ((String) key).split("\\."); int last = path.length - 1; JSONObject target = this; for (int i = 0; i < last; i += 1) { String segment = path[i]; JSONObject nextTarget = target.optJSONObject(segment); if (nextTarget == null) { nextTarget = new JSONObject(); target.put(segment, nextTarget); } target = nextTarget; } target.put(path[last], bundle.getString((String) key)); } } }
/** * Get an array of field names from a JSONObject. * * @return An array of field names, or null if there are no names. */ public static String[] getNames(JSONObject jo) { int length = jo.length(); if (length == 0) { return null; } Iterator iterator = jo.keys(); String[] names = new String[length]; int i = 0; while (iterator.hasNext()) { names[i] = (String) iterator.next(); i += 1; } return names; }
/** * Write the contents of the JSONObject as JSON text to a writer. For compactness, no whitespace * is added. * * <p>Warning: This method assumes that the data structure is acyclical. * * @return The writer. * @throws JSONException */ public Writer write(Writer writer) throws JSONException { try { boolean commanate = false; Iterator keys = this.keys(); writer.write('{'); while (keys.hasNext()) { if (commanate) { writer.write(','); } Object key = keys.next(); writer.write(quote(key.toString())); writer.write(':'); Object value = this.map.get(key); if (value instanceof JSONObject) { ((JSONObject) value).write(writer); } else if (value instanceof JSONArray) { ((JSONArray) value).write(writer); } else { writer.write(valueToString(value)); } commanate = true; } writer.write('}'); return writer; } catch (IOException exception) { throw new JSONException(exception); } }
/** * Construct a JSONObject from a subset of another JSONObject. An array of strings is used to * identify the keys that should be copied. Missing keys are ignored. * * @param jo A JSONObject. * @param names An array of strings. * @throws JSONException * @exception JSONException If a value is a non-finite number or if a name is duplicated. */ public JSONObject(JSONObject jo, String[] names) { this(); for (int i = 0; i < names.length; i += 1) { try { putOnce(names[i], jo.opt(names[i])); } catch (Exception ignore) { } } }