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VILLASnode/lib/api/requests/paths.cpp

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3.7 KiB
C++

/** The "paths" API ressource.
*
* @author Steffen Vogel <stvogel@eonerc.rwth-aachen.de>
* @copyright 2014-2020, Institute for Automation of Complex Power Systems, EONERC
* @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 <villas/super_node.hpp>
#include <villas/path.h>
#include <villas/path_source.h>
#include <villas/path_destination.h>
#include <villas/hook.hpp>
#include <villas/utils.hpp>
#include <villas/api/session.hpp>
#include <villas/api/request.hpp>
#include <villas/api/response.hpp>
namespace villas {
namespace node {
namespace api {
class PathsRequest : public Request {
public:
using Request::Request;
virtual Response * execute()
{
if (method != Method::GET)
throw InvalidMethod(this);
if (body != nullptr)
throw BadRequest("Paths endpoint does not accept any body data");
json_t *json_paths = json_array();
struct vlist *paths = session->getSuperNode()->getPaths();
for (size_t i = 0; i < vlist_length(paths); i++) {
struct vpath *p = (struct vpath *) vlist_at(paths, i);
char uuid[37];
uuid_unparse(p->uuid, uuid);
json_t *json_signals = json_array();
json_t *json_hooks = json_array();
json_t *json_sources = json_array();
json_t *json_destinations = json_array();
for (size_t i = 0; i < vlist_length(&p->signals); i++) {
struct signal *sig = (struct signal *) vlist_at_safe(&p->signals, i);
json_array_append(json_signals, signal_to_json(sig));
}
for (size_t i = 0; i < vlist_length(&p->hooks); i++) {
Hook *h = (Hook *) vlist_at_safe(&p->hooks, i);
json_array_append(json_hooks, h->getConfig());
}
for (size_t i = 0; i < vlist_length(&p->sources); i++) {
struct vpath_source *pd = (struct vpath_source *) vlist_at_safe(&p->sources, i);
json_array_append_new(json_sources, json_string(node_name_short(pd->node)));
}
for (size_t i = 0; i < vlist_length(&p->destinations); i++) {
struct vpath_destination *pd = (struct vpath_destination *) vlist_at_safe(&p->destinations, i);
json_array_append_new(json_destinations, json_string(node_name_short(pd->node)));
}
json_t *json_path = json_pack("{ s: s, s: s, s: s, s: b, s: b s: b, s: b, s: b, s: b s: i, s: o, s: o, s: o, s: o }",
"uuid", uuid,
"state", state_print(p->state),
"mode", p->mode == PathMode::ANY ? "any" : "all",
"enabled", p->enabled,
"builtin", p->builtin,
"reverse", p->reverse,
"original_sequence_no", p->original_sequence_no,
"last_sequence", p->last_sequence,
"poll", p->poll,
"queuelen", p->queuelen,
"signals", json_signals,
"hooks", json_hooks,
"in", json_sources,
"out", json_destinations
);
json_array_append_new(json_paths, json_path);
}
return new Response(session, json_paths);
}
};
/* Register API request */
static char n[] = "paths";
static char r[] = "/paths";
static char d[] = "retrieve list of all paths with details";
static RequestPlugin<PathsRequest, n, r, d> p;
} /* namespace api */
} /* namespace node */
} /* namespace villas */