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/* The API ressource for querying statistics.

* Author: Steffen Vogel <post@steffenvogel.de>

* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University

* SPDX-License-Identifier: Apache-2.0

#include <jansson.h>

#include <villas/api.hpp>

#include <villas/api/requests/node.hpp>

#include <villas/api/response.hpp>

#include <villas/api/session.hpp>

#include <villas/node.hpp>

#include <villas/stats.hpp>

#include <villas/super_node.hpp>

#include <villas/utils.hpp>

namespace villas {

namespace node {

namespace api {

class StatsRequest : public NodeRequest {

public:

using NodeRequest::NodeRequest;

Response *execute() override {

if (method != Session::Method::GET)

throw Error::invalidMethod(this);

if (body != nullptr)

throw Error::badRequest(nullptr,

"Stats endpoint does not accept any body data");

if (node->getStats() == nullptr)

throw Error::badRequest(

nullptr, "The statistics collection for this node is not enabled");

return new JsonResponse(session, HTTP_STATUS_OK,

node->getStats()->toJson());

}

};

// Register API requests

static char n[] = "node/stats";

static char r[] = "/node/(" RE_NODE_NAME "|" RE_UUID ")/stats";

static char d[] = "Get internal statistics counters";

static RequestPlugin<StatsRequest, n, r, d> p;

} // namespace api

} // namespace node

} // namespace villas

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