/usr/include/autobahn/wamp_invocation.ipp is in autobahn-cpp-dev 17.5.1+git7cc5d37-2.
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//
// Copyright (c) Crossbar.io Technologies GmbH and contributors
//
// Boost Software License - Version 1.0 - August 17th, 2003
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
///////////////////////////////////////////////////////////////////////////////
#include "wamp_message.hpp"
#include "wamp_message_type.hpp"
#include <boost/lexical_cast.hpp>
#include <stdexcept>
#include <tuple>
namespace autobahn {
inline wamp_invocation_impl::wamp_invocation_impl()
: m_zone()
, m_arguments(EMPTY_ARGUMENTS)
, m_kw_arguments(EMPTY_KW_ARGUMENTS)
, m_send_result_fn()
, m_request_id(0)
, m_progressive_results_expected(false)
{
}
inline const std::string& wamp_invocation_impl::uri() const
{
return m_uri;
}
inline std::size_t wamp_invocation_impl::number_of_arguments() const
{
return m_arguments.type == msgpack::type::ARRAY ? m_arguments.via.array.size : 0;
}
inline std::size_t wamp_invocation_impl::number_of_kw_arguments() const
{
return m_kw_arguments.type == msgpack::type::MAP ? m_kw_arguments.via.map.size : 0;
}
template <typename T>
inline T wamp_invocation_impl::argument(std::size_t index) const
{
if (m_arguments.type != msgpack::type::ARRAY || m_arguments.via.array.size <= index) {
throw std::out_of_range("no argument at index " + boost::lexical_cast<std::string>(index));
}
return m_arguments.via.array.ptr[index].as<T>();
}
template <typename List>
inline List wamp_invocation_impl::arguments() const
{
return m_arguments.as<List>();
}
template <typename List>
inline void wamp_invocation_impl::get_arguments(List& args) const
{
m_arguments.convert(args);
}
template <typename... T>
inline void wamp_invocation_impl::get_each_argument(T&... args) const
{
auto args_tuple = std::make_tuple(std::ref(args)...);
m_arguments.convert(args_tuple);
}
template <typename T>
inline T wamp_invocation_impl::kw_argument(const std::string& key) const
{
if (m_kw_arguments.type != msgpack::type::MAP) {
throw msgpack::type_error();
}
for (std::size_t i = 0; i < m_kw_arguments.via.map.size; ++i) {
const msgpack::object_kv& kv = m_kw_arguments.via.map.ptr[i];
if (kv.key.type == msgpack::type::STR && key.size() == kv.key.via.str.size
&& key.compare(0, key.size(), kv.key.via.str.ptr, kv.key.via.str.size) == 0)
{
return kv.val.as<T>();
}
}
throw std::out_of_range(key + " keyword argument doesn't exist");
}
template <typename T>
inline T wamp_invocation_impl::kw_argument(const char* key) const
{
if (m_kw_arguments.type != msgpack::type::MAP) {
throw msgpack::type_error();
}
std::size_t key_size = strlen(key);
for (std::size_t i = 0; i < m_kw_arguments.via.map.size; ++i) {
const msgpack::object_kv& kv = m_kw_arguments.via.map.ptr[i];
if (kv.key.type == msgpack::type::STR && key_size == kv.key.via.str.size
&& memcmp(key, kv.key.via.str.ptr, key_size) == 0)
{
return kv.val.as<T>();
}
}
throw std::out_of_range(std::string(key) + " keyword argument doesn't exist");
}
template <typename T>
inline T wamp_invocation_impl::kw_argument_or(const std::string& key, const T& fallback) const
{
if (m_kw_arguments.type != msgpack::type::MAP) {
throw msgpack::type_error();
}
for (std::size_t i = 0; i < m_kw_arguments.via.map.size; ++i) {
const msgpack::object_kv& kv = m_kw_arguments.via.map.ptr[i];
if (kv.key.type == msgpack::type::STR && key.size() == kv.key.via.str.size
&& key.compare(0, key.size(), kv.key.via.str.ptr, kv.key.via.str.size) == 0)
{
return kv.val.as<T>();
}
}
return fallback;
}
template <typename T>
inline T wamp_invocation_impl::kw_argument_or(const char* key, const T& fallback) const
{
if (m_kw_arguments.type != msgpack::type::MAP) {
throw msgpack::type_error();
}
std::size_t key_size = strlen(key);
for (std::size_t i = 0; i < m_kw_arguments.via.map.size; ++i) {
const msgpack::object_kv& kv = m_kw_arguments.via.map.ptr[i];
if (kv.key.type == msgpack::type::STR && key_size == kv.key.via.str.size
&& memcmp(key, kv.key.via.str.ptr, key_size) == 0)
{
return kv.val.as<T>();
}
}
return fallback;
}
template <typename Map>
inline Map wamp_invocation_impl::kw_arguments() const
{
return m_kw_arguments.as<Map>();
}
template <typename Map>
inline void wamp_invocation_impl::get_kw_arguments(Map& kw_args) const
{
m_kw_arguments.convert(kw_args);
}
template <typename T>
inline T wamp_invocation_impl::detail(const std::string& key) const
{
if (m_details.type != msgpack::type::MAP) {
throw msgpack::type_error();
}
for (std::size_t i = 0; i < m_details.via.map.size; ++i) {
const msgpack::object_kv& kv = m_details.via.map.ptr[i];
if (kv.key.type == msgpack::type::STR && key.size() == kv.key.via.str.size
&& key.compare(0, key.size(), kv.key.via.str.ptr, kv.key.via.str.size) == 0)
{
return kv.val.as<T>();
}
}
throw std::out_of_range(key + " call detail doesn't exist");
}
template <typename T>
inline T wamp_invocation_impl::detail(const char* key) const
{
if (m_details.type != msgpack::type::MAP) {
throw msgpack::type_error();
}
std::size_t key_size = strlen(key);
for (std::size_t i = 0; i < m_details.via.map.size; ++i) {
const msgpack::object_kv& kv = m_details.via.map.ptr[i];
if (kv.key.type == msgpack::type::STR && key_size == kv.key.via.str.size
&& memcmp(key, kv.key.via.str.ptr, key_size) == 0)
{
return kv.val.as<T>();
}
}
throw std::out_of_range(std::string(key) + " call detail doesn't exist");
}
template <typename T>
inline T wamp_invocation_impl::detail_or(const std::string& key, const T& fallback) const
{
if (m_details.type != msgpack::type::MAP) {
throw msgpack::type_error();
}
for (std::size_t i = 0; i < m_details.via.map.size; ++i) {
const msgpack::object_kv& kv = m_details.via.map.ptr[i];
if (kv.key.type == msgpack::type::STR && key.size() == kv.key.via.str.size
&& key.compare(0, key.size(), kv.key.via.str.ptr, kv.key.via.str.size) == 0)
{
return kv.val.as<T>();
}
}
return fallback;
}
template <typename T>
inline T wamp_invocation_impl::detail_or(const char* key, const T& fallback) const
{
if (m_details.type != msgpack::type::MAP) {
throw msgpack::type_error();
}
std::size_t key_size = strlen(key);
for (std::size_t i = 0; i < m_details.via.map.size; ++i) {
const msgpack::object_kv& kv = m_details.via.map.ptr[i];
if (kv.key.type == msgpack::type::STR && key_size == kv.key.via.str.size
&& memcmp(key, kv.key.via.str.ptr, key_size) == 0)
{
return kv.val.as<T>();
}
}
return fallback;
}
template <typename Map>
inline Map wamp_invocation_impl::details() const
{
return m_details.as<Map>();
}
template <typename Map>
inline void wamp_invocation_impl::get_details(Map& details) const
{
m_details.convert(details);
}
inline bool wamp_invocation_impl::progressive_results_expected() const
{
return m_progressive_results_expected;
}
inline void wamp_invocation_impl::empty_result()
{
throw_if_not_sendable();
// [YIELD, INVOCATION.Request|id, Options|dict]
auto message = std::make_shared<wamp_message>(3);
message->set_field(0, static_cast<int>(message_type::YIELD));
message->set_field(1, m_request_id);
message->set_field(2, std::map<int, int>() /* No details */);
m_send_result_fn(message);
m_send_result_fn = send_result_fn();
}
template<typename List>
inline void wamp_invocation_impl::send_result(const List& arguments, wamp_invocation_impl::result_type resultType)
{
throw_if_not_sendable();
if (resultType == intermediary && !m_progressive_results_expected)
{
//Discard intermediate results. Other option is to throw, since method could check if progressive results are expected
return;
}
// [YIELD, INVOCATION.Request|id, Options|dict, Arguments|list]
auto message = std::make_shared<wamp_message>(4);
message->set_field(0, static_cast<int>(message_type::YIELD));
message->set_field(1, m_request_id);
if (resultType == intermediary)
{
message->set_field(2, std::map<std::string, bool>{ {"progress", true} });
}
else
{
message->set_field(2, std::map<int, int>() /* No details */);
}
message->set_field(3, arguments);
m_send_result_fn(message);
if (resultType != intermediary)
{
//Final result clears send function
m_send_result_fn = send_result_fn();
}
}
template<typename List, typename Map>
inline void wamp_invocation_impl::send_result(
const List& arguments, const Map& kw_arguments, wamp_invocation_impl::result_type resultType)
{
throw_if_not_sendable();
if (resultType == intermediary && !m_progressive_results_expected)
{
//Discard intermediate results. Other option is to throw, since method could check if progressive results are expected
return;
}
// [YIELD, INVOCATION.Request|id, Options|dict, Arguments|list, ArgumentsKw|dict]
auto message = std::make_shared<wamp_message>(5);
message->set_field(0, static_cast<int>(message_type::YIELD));
message->set_field(1, m_request_id);
if (resultType == intermediary)
{
message->set_field(2, std::map<std::string, bool>{ {"progress", true} });
}
else
{
message->set_field(2, std::map<int, int>() /* No details */);
}
message->set_field(3, arguments);
message->set_field(4, kw_arguments);
m_send_result_fn(message);
if (resultType != intermediary)
{
//Final result clears send function
m_send_result_fn = send_result_fn();
}
}
template <typename List>
inline void wamp_invocation_impl::progress(const List& arguments)
{
send_result<List>(arguments, intermediary);
}
template <typename List, typename Map>
inline void wamp_invocation_impl::progress(const List& arguments, const Map& kw_arguments)
{
send_result<List, Map>(arguments, kw_arguments, intermediary);
}
template <typename List>
inline void wamp_invocation_impl::result(const List& arguments)
{
send_result<List>(arguments, final);
}
template <typename List, typename Map>
inline void wamp_invocation_impl::result(const List& arguments, const Map& kw_arguments)
{
send_result<List, Map>(arguments, kw_arguments, final);
}
inline void wamp_invocation_impl::error(const std::string& error_uri)
{
throw_if_not_sendable();
// [ERROR, INVOCATION, INVOCATION.Request|id, Details|dict, Error|uri]
auto message = std::make_shared<wamp_message>(5);
message->set_field(0, static_cast<int>(message_type::ERROR));
message->set_field(1, static_cast<int>(message_type::INVOCATION));
message->set_field(2, m_request_id);
message->set_field(3, std::map<int, int>() /* No details */);
message->set_field(4, error_uri);
m_send_result_fn(message);
m_send_result_fn = send_result_fn();
}
template <typename List>
inline void wamp_invocation_impl::error(const std::string& error_uri, const List& arguments)
{
throw_if_not_sendable();
// [ERROR, INVOCATION, INVOCATION.Request|id, Details|dict, Error|uri, Arguments|list]
auto message = std::make_shared<wamp_message>(6);
message->set_field(0, static_cast<int>(message_type::ERROR));
message->set_field(1, static_cast<int>(message_type::INVOCATION));
message->set_field(2, m_request_id);
message->set_field(3, std::map<int, int>() /* No details */);
message->set_field(4, error_uri);
message->set_field(5, arguments);
m_send_result_fn(message);
m_send_result_fn = send_result_fn();
}
template <typename List, typename Map>
inline void wamp_invocation_impl::error(
const std::string& error_uri,
const List& arguments, const Map& kw_arguments)
{
throw_if_not_sendable();
// [ERROR, INVOCATION, INVOCATION.Request|id, Details|dict, Error|uri, Arguments|list, ArgumentsKw|dict]
auto message = std::make_shared<wamp_message>(7);
message->set_field(0, static_cast<int>(message_type::ERROR));
message->set_field(1, static_cast<int>(message_type::INVOCATION));
message->set_field(2, m_request_id);
message->set_field(3, std::map<int, int>() /* No details */);
message->set_field(4, error_uri);
message->set_field(5, arguments);
message->set_field(6, kw_arguments);
m_send_result_fn(message);
m_send_result_fn = send_result_fn();
}
inline void wamp_invocation_impl::set_send_result_fn(send_result_fn&& send_result)
{
m_send_result_fn = std::move(send_result);
}
inline void wamp_invocation_impl::set_details(const msgpack::object& details)
{
m_uri = value_for_key_or<std::string>(details, "procedure", std::string());
m_progressive_results_expected = value_for_key_or<bool>(details, "receive_progress", false);
m_details = details;
}
inline void wamp_invocation_impl::set_request_id(std::uint64_t request_id)
{
m_request_id = request_id;
}
inline void wamp_invocation_impl::set_zone(msgpack::zone&& zone)
{
m_zone = std::move(zone);
}
inline void wamp_invocation_impl::set_arguments(const msgpack::object& arguments)
{
m_arguments = arguments;
}
inline void wamp_invocation_impl::set_kw_arguments(const msgpack::object& kw_arguments)
{
m_kw_arguments = kw_arguments;
}
inline bool wamp_invocation_impl::sendable() const
{
return static_cast<bool>(m_send_result_fn);
}
inline void wamp_invocation_impl::throw_if_not_sendable() const
{
if (!sendable()) {
throw std::runtime_error("tried to call result() or error() but wamp_invocation "
"is not sendable (double call?)");
}
}
} // namespace autobahn
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