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('}');
}
