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/*
* Copyright (c) 2018 TOYOTA MOTOR CORPORATION
* Copyright (C) 2020 Konsulko Group
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <cstring>
#include <algorithm>
#include "hs-clientmanager.h"
static const char _homescreen[] = "homescreen";
HS_ClientManager* HS_ClientManager::me = nullptr;
static void cbRemoveClientCtxt(void *data)
{
HS_ClientManager::instance()->removeClientCtxt(data);
}
/**
* HS_ClientManager construction function
*
* #### Parameters
* - Nothing
*
* #### Return
* None
*
*/
HS_ClientManager::HS_ClientManager()
{
}
/**
* get instance
*
* #### Parameters
* - Nothing
*
* #### Return
* HS_ClientManager instance pointer
*
*/
HS_ClientManager* HS_ClientManager::instance(void)
{
if(me == nullptr)
me = new HS_ClientManager();
return me;
}
/**
* HS_ClientManager init function
*
* #### Parameters
* - Nothing
*
* #### Return
* init result
*
*/
int HS_ClientManager::init(void)
{
return 0;
}
/**
* create client's afb_req_context
*
* #### Parameters
* - appid: app's id
*
* #### Return
* HS_ClientCtxt pointer
*
*/
HS_ClientCtxt* HS_ClientManager::createClientCtxt(afb_req_t req, std::string appid)
{
HS_ClientCtxt *ctxt = (HS_ClientCtxt *)afb_req_context_get(req);
if (!ctxt)
{
AFB_INFO( "create new session for %s", appid.c_str());
ctxt = new HS_ClientCtxt(appid);
afb_req_session_set_LOA(req, 1);
afb_req_context_set(req, ctxt, cbRemoveClientCtxt);
}
appid2ctxt[appid] = ctxt;
return ctxt;
}
/**
* add Client
*
* #### Parameters
* - ctxt: app's id
*
* #### Return
* HS_Client pointer
*
*/
HS_Client* HS_ClientManager::addClient(afb_req_t req, std::string appid)
{
return (client_list[appid] = new HS_Client(req, appid));
}
/**
* remove Client
*
* #### Parameters
* - appid: app's id
*
* #### Return
* None
*
*/
void HS_ClientManager::removeClient(std::string appid)
{
delete client_list[appid];
client_list.erase(appid);
}
/**
* remove Client from list
*
* #### Parameters
* - data: HS_ClientCtxt pointer
*
* #### Return
* None
*
*/
void HS_ClientManager::removeClientCtxt(void *data)
{
HS_ClientCtxt *ctxt = (HS_ClientCtxt *)data;
if(ctxt == nullptr)
{
AFB_WARNING( "data is nullptr");
return;
}
AFB_INFO( "remove app %s", ctxt->id.c_str());
std::lock_guard<std::mutex> lock(this->mtx);
removeClient(ctxt->id);
delete appid2ctxt[ctxt->id];
appid2ctxt.erase(ctxt->id);
}
/**
* handle homescreen request
*
* #### Parameters
* - request : the request
* - verb : the verb name
* - appid : to which application
*
* #### Return
* 0 : success
* others : fail
*
*/
int HS_ClientManager::handleRequest(afb_req_t request, const char *verb, const char *appid)
{
AFB_INFO("verb=[%s],appid=[%s].", verb, appid);
int ret = 0;
std::lock_guard<std::mutex> lock(this->mtx);
if(appid == nullptr) {
for(auto m : client_list) {
m.second->handleRequest(request, verb);
}
}
else {
std::string id(appid);
auto ip = client_list.find(id);
if(ip != client_list.end()) {
// FIXME: do another verification here in case the application died
ret = ip->second->handleRequest(request, verb);
}
else {
if(!strcasecmp(verb, "subscribe")) {
createClientCtxt(request, id);
HS_Client* client = addClient(request, id);
ret = client->handleRequest(request, "subscribe");
}
else {
AFB_NOTICE("not exist session");
ret = AFB_REQ_NOT_STARTED_APPLICATION;
}
}
}
return ret;
}
/**
* push event
*
* #### Parameters
* - event : the event want to push
* - param : the parameter contents of event
* - appid : the destination application's id
*
* #### Return
* 0 : success
* others : fail
*
*/
int HS_ClientManager::pushEvent(const char *event, struct json_object *param, std::string appid)
{
if(event == nullptr) {
AFB_WARNING("event name is null.");
return -1;
}
std::lock_guard<std::mutex> lock(this->mtx);
if(appid.empty()) { // broadcast event to clients who subscribed this event
for(auto m : client_list) {
m.second->pushEvent(event, param);
}
}
else { // push event to specific client
auto ip = client_list.find(appid);
if(ip != client_list.end()) {
ip->second->pushEvent(event, param);
}
}
return 0;
}
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