MachCommand.cc

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file MachCommand.cc
 *
 * Implementation of MachCommand class
 *
 * @author Pekka Jääskeläinen 2005 (pjaaskel-no.spam-cs.tut.fi)
 * @note rating: red
 */
 
#include "MachCommand.hh"
#include "Application.hh"
#include "FileSystem.hh"
#include "SimulatorFrontend.hh"
#include "SimulatorInterpreterContext.hh"
#include "Exception.hh"
#include "SimulatorToolbox.hh"
#include "SimulatorTextGenerator.hh"
 
/**
 * Constructor.
 *
 * Sets the name of the command to the base class.
 */
MachCommand::MachCommand() : CustomCommand("mach") {
}
 
/**
 * Destructor.
 *
 * Does nothing.
 */
MachCommand::~MachCommand() {
}
 
/**
 * Executes the "mach" command.
 *
 * Loads a new machine file using the SimulatorFrontend.
 *
 * @param arguments Filename is given as argument to the command.
 * @return True if loading the program was successful.
 * @exception NumberFormatException Is never thrown by this command.
 *
 */
bool
MachCommand::execute(const std::vector<DataObject>& arguments) {
    assert(interpreter() != NULL);
 
    SimulatorTextGenerator& textGen = SimulatorToolbox::textGenerator();    
    if (arguments.size() < 2) {
        DataObject* errorMessage = new DataObject();
        errorMessage->setString(
            textGen.text(Texts::TXT_NO_FILENAME_DEFINED).str());
        interpreter()->setResult(errorMessage);
        return false;
    }
 
    if (arguments.size() > 2) {
        DataObject* errorMessage = new DataObject();
        errorMessage->setString(
            textGen.text(Texts::TXT_ONLY_ONE_FILENAME_EXPECTED).str());
        interpreter()->setResult(errorMessage);
        return false;   
    }    
 
    SimulatorInterpreterContext& interpreterContext = 
        dynamic_cast<SimulatorInterpreterContext&>(interpreter()->context());
 
    SimulatorFrontend& simulatorFrontend = 
        interpreterContext.simulatorFrontend();
    
    try {
        const std::string fileName = 
            FileSystem::expandTilde(arguments.at(1).stringValue()); 
        simulatorFrontend.loadMachine(fileName);
    } catch (const Exception& e) {
        DataObject* errorMessage = new DataObject();
        errorMessage->setString(
            SimulatorToolbox::textGenerator().text(
                Texts::TXT_UNABLE_TO_LOAD_MACHINE).str() + e.errorMessageStack(true));
        interpreter()->setResult(errorMessage);
        return false;
    } catch (...) {
        assert(false);
        return false;
    }
    return true;
}
 
/**
 * Returns the help text for this command.
 * 
 * Help text is searched from SimulatorTextGenerator.
 *
 * @return The help text.
 * @todo Use SimulatorTextGenerator to get the help text.
 */
std::string 
MachCommand::helpText() const {
    return SimulatorToolbox::textGenerator().text(
        Texts::TXT_INTERP_HELP_MACH).str();
}