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SDi-STOMP/stompframe.cpp
github-classroom[bot] 852d59b0b3
Initial commit
2023-11-23 08:19:32 +00:00

152 lines
4.1 KiB
C++

#include "stompframe.h"
STOMPFrame::STOMPFrame(Command command, std::initializer_list<QPair<QString, QString>> headers, const QByteArray& body):
command_(command), body_(body) {
for (const auto& header: headers) {
headers_[header.first] = header.second;
}
}
qint64 STOMPFrame::send(QIODevice& device) {
QByteArray encoded;
QTextStream out {&encoded};
out << command_ << "\n";
for (const auto& key: headers_.keys()) {
out << key << ":" << headers_[key] << "\n";
}
if (!headers_.contains("content-length")) {
out << "content-length" << ":" << body_.size() << "\n";
}
out << "\n" << body_ << '\0';
out.flush();
return device.write(encoded);
}
STOMPFrame STOMPFrame::receive(QIODevice& device) {
STOMPFrame frame;
QTextStream in(&device);
QString commandStr;
if (!in.readLineInto(&commandStr)) {
return {};
}
if (commandStr == "STOMP") {
frame.command_ = STOMPFrame::STOMP;
} else if (commandStr == "SEND") {
frame.command_ = STOMPFrame::SEND;
} else if (commandStr == "SUBSCRIBE") {
frame.command_ = STOMPFrame::SUBSCRIBE;
} else if (commandStr == "UNSUBSCRIBE") {
frame.command_ = STOMPFrame::UNSUBSCRIBE;
} else if (commandStr == "BEGIN") {
frame.command_ = STOMPFrame::BEGIN;
} else if (commandStr == "COMMIT") {
frame.command_ = STOMPFrame::COMMIT;
} else if (commandStr == "ABORT") {
frame.command_ = STOMPFrame::ABORT;
} else if (commandStr == "ACK") {
frame.command_ = STOMPFrame::ACK;
} else if (commandStr == "NACK") {
frame.command_ = STOMPFrame::NACK;
} else if (commandStr == "DISCONNECT") {
frame.command_ = STOMPFrame::DISCONNECT;
} else if (commandStr == "CONNECTED") {
frame.command_ = STOMPFrame::CONNECTED;
} else if (commandStr == "MESSAGE") {
frame.command_ = STOMPFrame::MESSAGE;
} else if (commandStr == "RECEIPT") {
frame.command_ = STOMPFrame::RECEIPT;
} else if (commandStr == "ERROR") {
frame.command_ = STOMPFrame::ERROR;
} else {
return {};
}
QString headerLine;
while (in.readLineInto(&headerLine) && headerLine != "") {
auto components = headerLine.split(':');
if (components.count() != 2) {
return {};
}
frame.headers_.insert(components[0].trimmed(), components[1].trimmed());
}
if (frame.headers_.contains("content-length")) {
bool conversionOk;
qint64 length = frame.headers_["content-length"].toLongLong(&conversionOk);
if (!conversionOk) {
return {};
}
while (frame.body_.length() < length) {
frame.body_ += in.read(length - frame.body_.length()).toUtf8();
}
} else {
in >> frame.body_;
}
return frame;
}
QTextStream& operator <<(QTextStream& out, STOMPFrame::Command command) {
switch (command) {
case STOMPFrame::INVALID:
break;
case STOMPFrame::STOMP:
out << "STOMP";
break;
case STOMPFrame::SEND:
out << "SEND";
break;
case STOMPFrame::SUBSCRIBE:
out << "SUBSCRIBE";
break;
case STOMPFrame::UNSUBSCRIBE:
out << "UNSUBSCRIBE";
break;
case STOMPFrame::BEGIN:
out << "BEGIN";
break;
case STOMPFrame::COMMIT:
out << "COMMIT";
break;
case STOMPFrame::ABORT:
out << "ABORT";
break;
case STOMPFrame::ACK:
out << "ACK";
break;
case STOMPFrame::NACK:
out << "NACK";
break;
case STOMPFrame::DISCONNECT:
out << "DISCONNECT";
break;
case STOMPFrame::CONNECTED:
out << "CONNECTED";
break;
case STOMPFrame::MESSAGE:
out << "MESSAGE";
break;
case STOMPFrame::RECEIPT:
out << "RECEIPT";
break;
case STOMPFrame::ERROR:
out << "ERROR";
break;
}
return out;
}