static Writer writeValue(Writer writer, Object value) throws JSONException, IOException {
if (value == null) {
writer.write("null");
} else if (value instanceof JSONObject) {
((JSONObject) value).write(writer);
} else if (value instanceof JSONArray) {
((JSONArray) value).write(writer);
} else if (value instanceof Map) {
Map<?, ?> map = (Map<?, ?>) value;
new JSONObject(map).write(writer);
} else if (value instanceof Collection) {
Collection<?> coll = (Collection<?>) value;
new JSONArray(coll).write(writer);
} else if (value.getClass().isArray()) {
new JSONArray(value).write(writer);
} else if (value instanceof Number) {
writer.write(numberToString((Number) value));
} else if (value instanceof Boolean) {
writer.write(value.toString());
} else {
quote(value.toString(), writer);
}
return writer;
}
