public void append_json_repr(StringBuffer buf, PyObject py_obj) throws JSONEncodeError { if (py_obj instanceof PyString) append_json_string_repr(buf, ((PyString) py_obj).toString()); // Must test for PyBoolean before PyInteger because former is a subclass of latter. else if (py_obj instanceof PyBoolean) buf.append(((PyBoolean) py_obj).getBooleanValue() ? "true" : "false"); else if (py_obj instanceof PyInteger) buf.append(Integer.toString(((PyInteger) py_obj).getValue())); else if (py_obj instanceof PyLong) { String repr = ((PyLong) py_obj).__repr__().toString(); buf.append(repr.substring(0, repr.length() - 1)); } else if (py_obj instanceof PyFloat) buf.append(Double.toString(((PyFloat) py_obj).getValue())); else if (py_obj instanceof PyStringMap) append_json_string_map_repr(buf, (PyStringMap) py_obj); else if (py_obj instanceof PyDictionary) append_json_dictionary_repr(buf, (PyDictionary) py_obj); else if (py_obj instanceof PySequence) append_json_sequence_repr(buf, (PySequence) py_obj); else if (py_obj instanceof PyNone) buf.append("null"); else if (py_obj.__findattr__("__json__") != null && py_obj.__findattr__("__json__").isCallable()) buf.append(((PyMethod) py_obj.__findattr__("__json__")).__call__().toString()); else throw new JSONEncodeError( "Python '" + ((PyType) py_obj.fastGetClass()).fastGetName() + "' object '" + py_obj.__repr__() + "' is not encodable in JSON"); }
protected void append_json_map_repr(StringBuffer buf, PyObject map, PyList keys) throws JSONEncodeError { int num_keys = keys.__len__(); buf.append('{'); for (int ix = 0; ix < num_keys; ix++) { PyObject k = keys.__getitem__(ix); if (!(k instanceof PyString)) throw new JSONEncodeError( ((PyType) k.fastGetClass()).fastGetName() + " objects are not permitted as JSON object keys."); append_json_string_repr(buf, ((PyString) k).toString()); buf.append(':'); buf.append(json_repr(map.__finditem__(k))); if (ix < num_keys - 1) buf.append(','); } buf.append('}'); }