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// Copyright (C) 2019 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "languageclientinterface.h"
#include "languageclienttr.h"
#include <QLoggingCategory>
using namespace LanguageServerProtocol;
using namespace Utils;
static Q_LOGGING_CATEGORY(LOGLSPCLIENTV, "qtc.languageclient.messages", QtWarningMsg);
namespace LanguageClient {
BaseClientInterface::BaseClientInterface()
{
m_buffer.open(QIODevice::ReadWrite | QIODevice::Append);
}
BaseClientInterface::~BaseClientInterface()
{
m_buffer.close();
}
void BaseClientInterface::sendMessage(const JsonRpcMessage message)
{
const BaseMessage baseMessage = message.toBaseMessage();
sendData(baseMessage.header());
sendData(baseMessage.content);
}
void BaseClientInterface::resetBuffer()
{
m_buffer.close();
m_buffer.setData(nullptr);
m_buffer.open(QIODevice::ReadWrite | QIODevice::Append);
}
void BaseClientInterface::parseData(const QByteArray &data)
{
const qint64 preWritePosition = m_buffer.pos();
qCDebug(parseLog) << "parse buffer pos: " << preWritePosition;
qCDebug(parseLog) << " data: " << data;
if (!m_buffer.atEnd())
m_buffer.seek(preWritePosition + m_buffer.bytesAvailable());
m_buffer.write(data);
m_buffer.seek(preWritePosition);
while (!m_buffer.atEnd()) {
QString parseError;
BaseMessage::parse(&m_buffer, parseError, m_currentMessage);
qCDebug(parseLog) << " complete: " << m_currentMessage.isComplete();
qCDebug(parseLog) << " length: " << m_currentMessage.contentLength;
qCDebug(parseLog) << " content: " << m_currentMessage.content;
if (!parseError.isEmpty())
emit error(parseError);
if (!m_currentMessage.isComplete())
break;
parseCurrentMessage();
}
if (m_buffer.atEnd()) {
m_buffer.close();
m_buffer.setData(nullptr);
m_buffer.open(QIODevice::ReadWrite | QIODevice::Append);
}
}
void BaseClientInterface::parseCurrentMessage()
{
if (m_currentMessage.mimeType == JsonRpcMessage::jsonRpcMimeType()) {
emit messageReceived(JsonRpcMessage(m_currentMessage));
} else {
emit error(Tr::tr("Cannot handle MIME type \"%1\" of message.")
.arg(QString::fromUtf8(m_currentMessage.mimeType)));
}
m_currentMessage = BaseMessage();
}
StdIOClientInterface::StdIOClientInterface()
: m_logFile("lspclient.XXXXXX.log")
{
m_logFile.setAutoRemove(false);
m_logFile.open();
}
StdIOClientInterface::~StdIOClientInterface()
{
delete m_process;
}
void StdIOClientInterface::startImpl()
{
if (m_process) {
QTC_CHECK(!m_process->isRunning());
delete m_process;
}
m_process = new Process;
m_process->setProcessMode(ProcessMode::Writer);
connect(m_process, &Process::readyReadStandardError,
this, &StdIOClientInterface::readError);
connect(m_process, &Process::readyReadStandardOutput,
this, &StdIOClientInterface::readOutput);
connect(m_process, &Process::started, this, &StdIOClientInterface::started);
connect(m_process, &Process::done, this, [this] {
m_logFile.flush();
if (m_process->result() != ProcessResult::FinishedWithSuccess)
emit error(QString("%1 (see logs in \"%2\")")
.arg(m_process->exitMessage())
.arg(m_logFile.fileName()));
emit finished();
});
m_logFile.write(QString("Starting server: %1\nOutput:\n\n").arg(m_cmd.toUserOutput()).toUtf8());
m_process->setCommand(m_cmd);
m_process->setWorkingDirectory(m_workingDirectory);
if (m_env.hasChanges())
m_process->setEnvironment(m_env);
m_process->start();
}
void StdIOClientInterface::setCommandLine(const CommandLine &cmd)
{
m_cmd = cmd;
}
void StdIOClientInterface::setWorkingDirectory(const FilePath &workingDirectory)
{
m_workingDirectory = workingDirectory;
}
void StdIOClientInterface::setEnvironment(const Environment &environment)
{
m_env = environment;
}
FilePath StdIOClientInterface::serverDeviceTemplate() const
{
return m_cmd.executable();
}
void StdIOClientInterface::sendData(const QByteArray &data)
{
if (!m_process || m_process->state() != QProcess::Running) {
emit error(Tr::tr("Cannot send data to unstarted server %1")
.arg(m_cmd.toUserOutput()));
return;
}
qCDebug(LOGLSPCLIENTV) << "StdIOClient send data:";
qCDebug(LOGLSPCLIENTV).noquote() << data;
m_process->writeRaw(data);
}
void StdIOClientInterface::readError()
{
QTC_ASSERT(m_process, return);
const QByteArray stdErr = m_process->readAllRawStandardError();
m_logFile.write(stdErr);
qCDebug(LOGLSPCLIENTV) << "StdIOClient std err:\n";
qCDebug(LOGLSPCLIENTV).noquote() << stdErr;
}
void StdIOClientInterface::readOutput()
{
QTC_ASSERT(m_process, return);
const QByteArray &out = m_process->readAllRawStandardOutput();
qCDebug(LOGLSPCLIENTV) << "StdIOClient std out:\n";
qCDebug(LOGLSPCLIENTV).noquote() << out;
parseData(out);
}
} // namespace LanguageClient
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