@Test public void testObjectToPrimitive() throws JSONException { ArrayOfPrimitivesContainer container = new ArrayOfPrimitivesContainer(); ArrayList<Object> primitives = container.primitives; primitives.add(Long.MIN_VALUE); primitives.add(Long.MAX_VALUE); primitives.add(Integer.MIN_VALUE); primitives.add(Integer.MAX_VALUE); primitives.add(Float.MIN_VALUE); primitives.add(Float.MAX_VALUE); primitives.add(Double.MIN_VALUE); primitives.add(Double.MAX_VALUE); String json = mObjectMapper.convertValue(container, JSONObject.class).toString(); JSONObject obj = new JSONObject(json); JSONArray array = obj.getJSONArray("primitives"); ArrayList<Object> actual = new ArrayList<>(); for (int i = 0, N = array.length(); i < N; i++) { actual.add(array.get(i)); } assertEquals(primitives.toString(), actual.toString()); }
public <T> T convertValue(Object fromValue, Class<T> toValueType) throws IllegalArgumentException { if (fromValue == null) { return null; } if (toValueType != Object.class && toValueType.isAssignableFrom(fromValue.getClass())) { return (T) fromValue; } try { if (fromValue instanceof JSONObject) { return _convertFromJSONObject((JSONObject) fromValue, toValueType); } else if (toValueType == JSONObject.class) { return (T) _convertToJSONObject(fromValue); } else { throw new IllegalArgumentException( "Expecting either fromValue or toValueType to be a JSONObject"); } } catch (NoSuchMethodException e) { throw new IllegalArgumentException(e); } catch (IllegalAccessException e) { throw new IllegalArgumentException(e); } catch (InstantiationException e) { throw new IllegalArgumentException(e); } catch (JSONException e) { throw new IllegalArgumentException(e); } catch (InvocationTargetException e) { throw ExceptionUtil.propagate(e.getCause()); } }
ObjectMapper { public <T> T convertValue(Object fromValue, Class<T> toValueType) throws IllegalArgumentException { if (fromValue == null) { return null; } if (toValueType != Object.class && toValueType.isAssignableFrom(fromValue.getClass())) { return (T) fromValue; } try { if (fromValue instanceof JSONObject) { return _convertFromJSONObject((JSONObject) fromValue, toValueType); } else if (toValueType == JSONObject.class) { return (T) _convertToJSONObject(fromValue); } else { throw new IllegalArgumentException( "Expecting either fromValue or toValueType to be a JSONObject"); } } catch (NoSuchMethodException e) { throw new IllegalArgumentException(e); } catch (IllegalAccessException e) { throw new IllegalArgumentException(e); } catch (InstantiationException e) { throw new IllegalArgumentException(e); } catch (JSONException e) { throw new IllegalArgumentException(e); } catch (InvocationTargetException e) { throw ExceptionUtil.propagate(e.getCause()); } } }
ObjectMapper { public <T> T convertValue(Object fromValue, Class<T> toValueType) throws IllegalArgumentException { if (fromValue == null) { return null; } if (toValueType != Object.class && toValueType.isAssignableFrom(fromValue.getClass())) { return (T) fromValue; } try { if (fromValue instanceof JSONObject) { return _convertFromJSONObject((JSONObject) fromValue, toValueType); } else if (toValueType == JSONObject.class) { return (T) _convertToJSONObject(fromValue); } else { throw new IllegalArgumentException( "Expecting either fromValue or toValueType to be a JSONObject"); } } catch (NoSuchMethodException e) { throw new IllegalArgumentException(e); } catch (IllegalAccessException e) { throw new IllegalArgumentException(e); } catch (InstantiationException e) { throw new IllegalArgumentException(e); } catch (JSONException e) { throw new IllegalArgumentException(e); } catch (InvocationTargetException e) { throw ExceptionUtil.propagate(e.getCause()); } }  }
ObjectMapper { public <T> T convertValue(Object fromValue, Class<T> toValueType) throws IllegalArgumentException { if (fromValue == null) { return null; } if (toValueType != Object.class && toValueType.isAssignableFrom(fromValue.getClass())) { return (T) fromValue; } try { if (fromValue instanceof JSONObject) { return _convertFromJSONObject((JSONObject) fromValue, toValueType); } else if (toValueType == JSONObject.class) { return (T) _convertToJSONObject(fromValue); } else { throw new IllegalArgumentException( "Expecting either fromValue or toValueType to be a JSONObject"); } } catch (NoSuchMethodException e) { throw new IllegalArgumentException(e); } catch (IllegalAccessException e) { throw new IllegalArgumentException(e); } catch (InstantiationException e) { throw new IllegalArgumentException(e); } catch (JSONException e) { throw new IllegalArgumentException(e); } catch (InvocationTargetException e) { throw ExceptionUtil.propagate(e.getCause()); } }  T convertValue(Object fromValue, Class<T> toValueType); JSONArray convertListToJsonArray(Object value); }
ObjectMapper { public <T> T convertValue(Object fromValue, Class<T> toValueType) throws IllegalArgumentException { if (fromValue == null) { return null; } if (toValueType != Object.class && toValueType.isAssignableFrom(fromValue.getClass())) { return (T) fromValue; } try { if (fromValue instanceof JSONObject) { return _convertFromJSONObject((JSONObject) fromValue, toValueType); } else if (toValueType == JSONObject.class) { return (T) _convertToJSONObject(fromValue); } else { throw new IllegalArgumentException( "Expecting either fromValue or toValueType to be a JSONObject"); } } catch (NoSuchMethodException e) { throw new IllegalArgumentException(e); } catch (IllegalAccessException e) { throw new IllegalArgumentException(e); } catch (InstantiationException e) { throw new IllegalArgumentException(e); } catch (JSONException e) { throw new IllegalArgumentException(e); } catch (InvocationTargetException e) { throw ExceptionUtil.propagate(e.getCause()); } }  T convertValue(Object fromValue, Class<T> toValueType); JSONArray convertListToJsonArray(Object value);  }