125 lines
4.5 KiB
C++
125 lines
4.5 KiB
C++
#include "connector.h"
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U::Connector::Connector(W::Dispatcher* dp, W::Server* srv, U::Commands* cmds, QObject* parent):
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QObject(parent),
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dispatcher(dp),
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server(srv),
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commands(cmds),
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nodes(),
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ignoredNodes()
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{
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connect(server, SIGNAL(newConnection(const W::Socket&)), SLOT(onNewConnection(const W::Socket&)));
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connect(server, SIGNAL(closedConnection(const W::Socket&)), SLOT(onClosedConnection(const W::Socket&)));
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W::String cn = W::String(u"connect");
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W::Handler* ch = W::Handler::create(commands->getAddress() + W::Address({cn}), this, &U::Connector::_h_connect);
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W::Vocabulary vc;
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vc.insert(u"address", W::Uint64(W::Object::string));
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vc.insert(u"port", W::Uint64(W::Object::uint64));
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commands->addCommand(cn, ch, vc);
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commands->enableCommand(cn, true);
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}
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U::Connector::~Connector()
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{
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commands->removeCommand(W::String(u"connect"));
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Map::const_iterator itr = nodes.begin();
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Map::const_iterator end = nodes.begin();
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W::String dc = W::String(u"disconnect");
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for (; itr != end; ++itr) {
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commands->removeCommand(dc + itr->first);
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}
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}
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void U::Connector::addIgnoredNode(const W::String& name)
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{
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ignoredNodes.insert(name);
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}
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void U::Connector::sendTo(const W::String& name, const W::Event& event)
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{
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Map::const_iterator itr = nodes.find(name);
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if (itr != nodes.end()) {
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throw new NodeAccessError(name);
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} else {
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server->getConnection(itr->second).send(event);
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}
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}
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void U::Connector::onNewConnection(const W::Socket& socket)
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{
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W::String name = socket.getRemoteName();
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std::set<W::String>::const_iterator ign = ignoredNodes.find(name);
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if (ign == ignoredNodes.end()) {
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Map::const_iterator itr = nodes.find(name);
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if (itr == nodes.end()) {
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if (server->getName() == name) {
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emit serviceMessage("An attempt to connect node to itself, closing connection");
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server->closeConnection(socket.getId());
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} else {
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W::String dc = W::String(u"disconnect");
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W::String dn = dc + name;
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W::Handler* dh = W::Handler::create(commands->getAddress() + W::Address({dc, name}), this, &U::Connector::_h_disconnect);
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commands->addCommand(dn, dh, W::Vocabulary());
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commands->enableCommand(dn, true);
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nodes.insert(std::make_pair(name, socket.getId()));
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emit serviceMessage(QString("New connection, id: ") + socket.getId().toString().c_str());
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connect(&socket, SIGNAL(message(const W::Event&)), dispatcher, SLOT(pass(const W::Event&)));
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emit nodeConnected(name);
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}
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} else {
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emit serviceMessage(QString("Node ") + QString(name.toString().c_str()) + " tried to connect, but connection with that node is already open, closing new connection");
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server->closeConnection(socket.getId());
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}
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} else {
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emit serviceMessage(QString("New connection, id: ") + socket.getId().toString().c_str());
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connect(&socket, SIGNAL(message(const W::Event&)), dispatcher, SLOT(pass(const W::Event&)));
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}
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}
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void U::Connector::onClosedConnection(const W::Socket& socket)
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{
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emit serviceMessage(QString("Connection closed, id: ") + socket.getId().toString().c_str());
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W::String name = socket.getRemoteName();
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std::set<W::String>::const_iterator ign = ignoredNodes.find(name);
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if (ign == ignoredNodes.end()) {
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Map::const_iterator itr = nodes.find(name);
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if (itr != nodes.end()) {
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emit nodeDisconnected(name);
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commands->removeCommand(W::String(u"disconnect") + name);
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nodes.erase(itr);
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}
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}
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}
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void U::Connector::h_connect(const W::Event& ev)
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{
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const W::Vocabulary& vc = static_cast<const W::Vocabulary&>(ev.getData());
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const W::String& addr = static_cast<const W::String&>(vc.at(u"address"));
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const W::Uint64& port = static_cast<const W::Uint64&>(vc.at(u"port"));
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server->openConnection(addr, port);
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}
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void U::Connector::h_disconnect(const W::Event& ev)
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{
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const W::Address& addr = static_cast<const W::Address&>(ev.getDestination());
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const W::String& name = addr.back();
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Map::const_iterator itr = nodes.find(name);
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server->closeConnection(itr->second);
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}
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const W::Socket& U::Connector::getNodeSocket(const W::String& name)
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{
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Map::const_iterator itr = nodes.find(name);
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if (itr == nodes.end()) {
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throw new NodeAccessError(name);
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}
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return server->getConnection(itr->second);
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}
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