protected void service(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
Writer output = new OutputStreamWriter(resp.getOutputStream(), "utf-8");
Reader input = new InputStreamReader(req.getInputStream(), "utf-8");
resp.setContentType("application/json; charset=utf-8");
try {
String path = req.getPathInfo();
String search = req.getParameter("search");
if (path.startsWith("/customers")) {
String id =
path.length() >= 11
? URLDecoder.decode(path.substring("/customers/".length()), "utf-8")
: "";
if (!id.isEmpty() && "GET".equals(req.getMethod())) {
StoredCustomer customer = getXmlStore().findCustomerById(id);
if (customer != null) {
JsonHelper.instance().toJson(customer, output);
} else {
resp.setStatus(404);
}
} else if ("POST".equals(req.getMethod())) {
Customer customer = JsonHelper.instance().fromJson(input);
StoredCustomer stored = getXmlStore().addCustomer(customer);
JsonHelper.instance().toJson(stored, output);
} else if (!id.isEmpty() && "PUT".equals(req.getMethod())) {
Customer customer = JsonHelper.instance().fromJson(input);
if (!getXmlStore().updateCustomerById(id, customer)) {
resp.setStatus(404);
} else {
JsonHelper.instance().toJson(customer, output);
}
} else if (!id.isEmpty() && "DELETE".equals(req.getMethod())) {
if (!getXmlStore().deleteCustomerById(id)) resp.setStatus(404);
} else if (search != null) {
Collection<StoredCustomer> customers = getXmlStore().findCustomersByText(search);
JsonHelper.instance().toJson(customers, output);
} else {
Collection<StoredCustomer> customers = getXmlStore().findAllCustomers();
JsonHelper.instance().toJson(customers, output);
}
} else if ("/types".equals(path)) {
JsonHelper.instance().toJsonTypes(output);
} else {
resp.setStatus(404);
}
} catch (Throwable e) {
resp.setStatus(500);
error(output, "Exception: " + e);
}
output.flush();
}
private void error(Writer output, String error) {
JsonHelper.instance().errorJson(error, output);
}
