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VILLASnode/lib/api/requests/nodes.cpp

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/** The "nodes" API ressource.
*
* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
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* @copyright 2014-2020, Institute for Automation of Complex Power Systems, EONERC
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* @license GNU General Public License (version 3)
*
* VILLASnode
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************************/
#include <jansson.h>
#include <uuid/uuid.h>
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#include <villas/super_node.hpp>
#include <villas/node.h>
#include <villas/utils.hpp>
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#include <villas/stats.hpp>
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#include <villas/api/session.hpp>
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#include <villas/api/request.hpp>
#include <villas/api/response.hpp>
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namespace villas {
namespace node {
namespace api {
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class NodesRequest : public Request {
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public:
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using Request::Request;
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virtual Response * execute()
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{
if (method != Session::Method::GET)
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throw InvalidMethod(this);
if (body != nullptr)
throw BadRequest("Nodes endpoint does not accept any body data");
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json_t *json_nodes = json_array();
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struct vlist *nodes = session->getSuperNode()->getNodes();
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for (size_t i = 0; i < vlist_length(nodes); i++) {
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struct vnode *n = (struct vnode *) vlist_at(nodes, i);
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json_array_append_new(json_nodes, node_to_json(n));
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}
return new JsonResponse(session, HTTP_STATUS_OK, json_nodes);
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}
};
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/* Register API request */
static char n[] = "nodes";
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static char r[] = "/nodes";
static char d[] = "retrieve list of all known nodes";
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static RequestPlugin<NodesRequest, n, r, d> p;
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} /* namespace api */
} /* namespace node */
} /* namespace villas */