protected void append_json_sequence_repr(StringBuffer buf, PySequence sequence) throws JSONEncodeError { int num_items = sequence.__len__(); buf.append('['); for (int ix = 0; ix < num_items; ix++) { buf.append(json_repr(sequence.__getitem__(ix))); if (ix < num_items - 1) buf.append(','); } buf.append(']'); }
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('}'); }
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_string_repr(StringBuffer buf, String str) { int size = str.length(); StringBuffer v = new StringBuffer(str.length()); char quote = '"'; buf.append(quote); for (int i = 0; size-- > 0; ) { int ch = str.charAt(i++); /* Escape quotes */ if (ch == quote || ch == '\\') { buf.append('\\'); buf.append((char) ch); } else if (ch == '\n') buf.append("\\n"); else if (ch == '\t') buf.append("\\t"); else if (ch == '\b') buf.append("\\b"); else if (ch == '\f') buf.append("\\f"); else if (ch == '\r') buf.append("\\r"); else if (ch < ' ' || (ch >= 127 && emit_ascii) || (ch >= Character.MIN_SURROGATE && ch <= Character.MAX_SURROGATE)) { /* Map control and non ascii characters to '\\uxxxx' */ buf.append("\\u"); buf.append(hexdigit[(ch >> 12) & 0xf]); buf.append(hexdigit[(ch >> 8) & 0xf]); buf.append(hexdigit[(ch >> 4) & 0xf]); buf.append(hexdigit[ch & 15]); } /* Copy everything else as-is */ else buf.append((char) ch); } buf.append(quote); }
public String json_repr(PyObject py_obj) throws JSONEncodeError { StringBuffer buf = new StringBuffer(); append_json_repr(buf, py_obj); return buf.toString(); }