mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
/** The Universal Data-exchange API.
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*
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* @author Steffen Vogel <svogel2@eonerc.rwth-aachen.de>
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* @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
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*
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* VILLASnode
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************************/
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#include <villas/api/requests/universal.hpp>
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#include <villas/api/response.hpp>
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namespace villas {
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namespace node {
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namespace api {
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namespace universal {
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class SignalsRequest : public UniversalRequest {
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public:
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using UniversalRequest::UniversalRequest;
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virtual Response * execute()
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{
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if (method != Session::Method::GET)
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throw InvalidMethod(this);
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if (body != nullptr)
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throw BadRequest("This endpoint does not accept any body data");
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auto *json_sigs = json_array();
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for (auto const &sig : *node->getOutputSignals()) {
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auto *json_sig = json_pack("{ s: s, s: s, s: b, s: b, s: o }",
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"id", fmt::format("out/{}", sig->name).c_str(),
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"source", node->getNameShort().c_str(),
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"readable", true,
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"writable", false,
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"value", json_null()
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);
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json_array_append(json_sigs, json_sig);
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}
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for (auto const &sig : *node->getInputSignals()) {
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auto *json_sig = json_pack("{ s: s, s: s, s: b, s: b, s: o }",
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"id", fmt::format("in/{}", sig->name).c_str(),
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"source", node->getNameShort().c_str(),
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"readable", false,
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"writable", true,
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"value", json_null()
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);
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json_array_append(json_sigs, json_sig);
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}
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return new JsonResponse(session, HTTP_STATUS_OK, json_sigs);
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}
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};
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/* Register API requests */
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static char n[] = "universal/signals";
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static char r[] = "/universal/(" RE_NODE_NAME ")/signals";
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static char d[] = "get signals of universal data-exchange API node";
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static RequestPlugin<SignalsRequest, n, r, d> p;
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} /* namespace universal */
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} /* namespace api */
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} /* namespace node */
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} /* namespace villas */
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