cxLocalServerStreamerServer.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice,
   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its contributors
   may be used to endorse or promote products derived from this software
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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=========================================================================*/
#include "cxLocalServerStreamerServer.h"

#include "cxStringProperty.h"
#include "cxDoubleProperty.h"
#include "cxBoolProperty.h"
#include "cxIGTLinkClientStreamer.h"
#include "cxImageStreamerOpenCV.h"
#include "cxUtilHelpers.h"
#include "cxLogger.h"
#include "QApplication"
#include <QDir>
#include "cxDataLocations.h"
#include "cxTypeConversions.h"
#include "cxFilePathProperty.h"


namespace cx
{


std::vector<PropertyPtr> LocalServerStreamerArguments::getSettings(QDomElement root)
{
        std::vector<PropertyPtr> retval;
        retval.push_back(this->getRunLocalServerOption(root));
        retval.push_back(this->getLocalServerNameOption(root));
        return retval;
}

BoolPropertyBasePtr LocalServerStreamerArguments::getRunLocalServerOption(QDomElement root)
{
        BoolPropertyPtr retval;

#ifdef __APPLE__
        bool defaultValue = true; // problems with opencv on mac - cannot close
#else
        bool defaultValue = false;
#endif

        retval = BoolProperty::initialize("runlocalserver", "Run as separate process",
                                                                                        "Run streamer in a separate process",
                                                                                        defaultValue, root);
        retval->setAdvanced(false);
        retval->setGroup("Connection");
        return retval;
}

FilePathPropertyPtr LocalServerStreamerArguments::getLocalServerNameOption(QDomElement root)
{
        QString filename = "OpenIGTLinkServer";
#ifdef WIN32
        filename += ".exe";
#endif

        QStringList paths = QStringList() << qApp->applicationDirPath();
#ifdef __APPLE__
    // special case for running from the build tree, server built as bundle.
        paths << QString("%1/%2.app/Contents/MacOS").arg(DataLocations::getBundlePath()).arg(filename);
#endif

        FilePathPropertyPtr retval;
        retval = FilePathProperty::initialize("localservername", "Server Name",
                                                                                  "Name of server executable, used only if Run Local Server is set.",
                                                                                  filename,
                                                                                  paths,
                                                                                  root);
        retval->setAdvanced(false);
        retval->setGroup("Connection");
        return retval;
}



StreamerPtr LocalServerStreamer::createStreamerIfEnabled(QDomElement root, StringMap args)
{
        bool useLocalServer = LocalServerStreamerArguments().getRunLocalServerOption(root)->getValue();

        if (!useLocalServer)
                return StreamerPtr();

        QStringList cmdlineArguments;
        for (StringMap::iterator i=args.begin(); i!=args.end(); ++i)
                cmdlineArguments << i->first << i->second;

        FilePathPropertyPtr localServerProp = LocalServerStreamerArguments().getLocalServerNameOption(root);
        QString localServer = localServerProp->getEmbeddedPath().getAbsoluteFilepath();
        boost::shared_ptr<LocalServerStreamer> streamer;
        streamer.reset(new LocalServerStreamer(localServer, cmdlineArguments.join(" ")));

        return streamer;
}

LocalServerStreamer::LocalServerStreamer(QString serverName, QString serverArguments) :
        mServerName(serverName),
        mServerArguments(serverArguments)
{
        mLocalVideoServerProcess.reset(new ProcessWrapper(QString("Local Video Server: %1").arg(mServerName)));

        boost::shared_ptr<IGTLinkClientStreamer> igtLinkStreamer(new IGTLinkClientStreamer());
        int defaultport = 18333;
        igtLinkStreamer->setAddress("Localhost", defaultport);
        mBase = igtLinkStreamer;
}

LocalServerStreamer::~LocalServerStreamer()
{
}

void LocalServerStreamer::startStreaming(SenderPtr sender)
{
    mSender = sender;
    connect(mLocalVideoServerProcess.get(), &ProcessWrapper::stateChanged, this, &LocalServerStreamer::processStateChanged);
    mLocalVideoServerProcess->launchWithRelativePath(mServerName, mServerArguments.split(" "));
}

void LocalServerStreamer::processStateChanged()
{
        if(mLocalVideoServerProcess->isRunning())
                mBase->startStreaming(mSender);
}

void LocalServerStreamer::stopStreaming()
{
        mBase->stopStreaming();

        if (mLocalVideoServerProcess->getProcess())
        {
                mLocalVideoServerProcess->getProcess()->close();
                mLocalVideoServerProcess.reset();
        }
}

bool LocalServerStreamer::isStreaming()
{
        return localVideoServerIsRunning();
}

bool LocalServerStreamer::localVideoServerIsRunning()
{
        if (!mLocalVideoServerProcess || !mLocalVideoServerProcess->getProcess())
                return false;
        return this->mLocalVideoServerProcess->isRunning();
}


} // namespace cx