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/* Copyright 2013-2017 MultiMC Contributors
*
* 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 "CheckJava.h"
#include <launch/LaunchTask.h>
#include <FileSystem.h>
#include <QStandardPaths>
#include <QFileInfo>
#include <sys.h>
void CheckJava::executeTask()
{
auto instance = m_parent->instance();
auto settings = instance->settings();
m_javaPath = FS::ResolveExecutable(settings->get("JavaPath").toString());
bool perInstance = settings->get("OverrideJava").toBool() || settings->get("OverrideJavaLocation").toBool();
auto realJavaPath = QStandardPaths::findExecutable(m_javaPath);
if (realJavaPath.isEmpty())
{
if (perInstance)
{
emit logLine(
tr("The java binary \"%1\" couldn't be found. Please fix the java path "
"override in the instance's settings or disable it.").arg(m_javaPath),
MessageLevel::Warning);
}
else
{
emit logLine(tr("The java binary \"%1\" couldn't be found. Please set up java in "
"the settings.").arg(m_javaPath),
MessageLevel::Warning);
}
emitFailed(tr("Java path is not valid."));
return;
}
else
{
emit logLine("Java path is:\n" + m_javaPath + "\n\n", MessageLevel::MultiMC);
}
QFileInfo javaInfo(realJavaPath);
qlonglong javaUnixTime = javaInfo.lastModified().toMSecsSinceEpoch();
auto storedUnixTime = settings->get("JavaTimestamp").toLongLong();
auto storedArchitecture = settings->get("JavaArchitecture").toString();
auto storedVersion = settings->get("JavaVersion").toString();
m_javaUnixTime = javaUnixTime;
// if timestamps are not the same, or something is missing, check!
if (javaUnixTime != storedUnixTime || storedVersion.size() == 0 || storedArchitecture.size() == 0)
{
m_JavaChecker = std::make_shared<JavaChecker>();
emit logLine(tr("Checking Java version..."), MessageLevel::MultiMC);
connect(m_JavaChecker.get(), &JavaChecker::checkFinished, this, &CheckJava::checkJavaFinished);
m_JavaChecker->m_path = realJavaPath;
m_JavaChecker->performCheck();
return;
}
else
{
auto verString = instance->settings()->get("JavaVersion").toString();
auto archString = instance->settings()->get("JavaArchitecture").toString();
printJavaInfo(verString, archString);
}
emitSucceeded();
}
void CheckJava::checkJavaFinished(JavaCheckResult result)
{
switch (result.validity)
{
case JavaCheckResult::Validity::Errored:
{
// Error message displayed if java can't start
emit logLine(tr("Could not start java:"), MessageLevel::Error);
emit logLines(result.errorLog.split('\n'), MessageLevel::Error);
emit logLine("\nCheck your MultiMC Java settings.", MessageLevel::MultiMC);
printSystemInfo(false, false);
emitFailed(tr("Could not start java!"));
return;
}
case JavaCheckResult::Validity::ReturnedInvalidData:
{
emit logLine(tr("Java checker returned some invalid data MultiMC doesn't understand:"), MessageLevel::Error);
emit logLines(result.outLog.split('\n'), MessageLevel::Warning);
emit logLine("\nMinecraft might not start properly.", MessageLevel::MultiMC);
printSystemInfo(false, false);
emitSucceeded();
return;
}
case JavaCheckResult::Validity::Valid:
{
auto instance = m_parent->instance();
printJavaInfo(result.javaVersion.toString(), result.mojangPlatform);
instance->settings()->set("JavaVersion", result.javaVersion.toString());
instance->settings()->set("JavaArchitecture", result.mojangPlatform);
instance->settings()->set("JavaTimestamp", m_javaUnixTime);
emitSucceeded();
return;
}
}
}
void CheckJava::printJavaInfo(const QString& version, const QString& architecture)
{
emit logLine(tr("Java is version %1, using %2-bit architecture.\n\n").arg(version, architecture), MessageLevel::MultiMC);
printSystemInfo(true, architecture == "64");
}
void CheckJava::printSystemInfo(bool javaIsKnown, bool javaIs64bit)
{
auto cpu64 = Sys::isCPU64bit();
auto system64 = Sys::isSystem64bit();
if(cpu64 != system64)
{
emit logLine(tr("Your CPU architecture is not matching your system architecture. You might want to install a 64bit Operating System.\n\n"), MessageLevel::Error);
}
if(javaIsKnown)
{
if(javaIs64bit != system64)
{
emit logLine(tr("Your Java architecture is not matching your system architecture. You might want to install a 64bit Java version.\n\n"), MessageLevel::Error);
}
}
}
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