change engine in options...(preliminary)

Former-commit-id: 56e05ef08c

src/settings/modules/GeneralSettings.cpp

@@ -287,15 +287,11 @@ namespace storm {
             }
             
             GeneralSettings::Engine GeneralSettings::getEngine() const {
-                std::string engine = this->getOption(engineOptionName).getArgumentByName("name").getValueAsString();
-                if (engine == "sparse") {
-                    return GeneralSettings::Engine::Sparse;
-                } else if (engine == "hybrid") {
-                    return GeneralSettings::Engine::Hybrid;
-                } else if (engine == "dd") {
-                    return GeneralSettings::Engine::Dd;
+                return engine;
             }
-                STORM_LOG_THROW(false, storm::exceptions::IllegalArgumentValueException, "Unknown engine '" << engine << "'.");
+
+            void GeneralSettings::setEngine(Engine newEngine) {
+                this->engine = newEngine;
             }
             
             bool GeneralSettings::isPrismCompatibilityEnabled() const {
@@ -322,6 +318,21 @@ namespace storm {
             }
 #endif
 
+            void GeneralSettings::finalize() {
+                // Finalize engine.
+                std::string engineStr = this->getOption(engineOptionName).getArgumentByName("name").getValueAsString();
+                if (engineStr == "sparse") {
+                    engine =  GeneralSettings::Engine::Sparse;
+                } else if (engineStr == "hybrid") {
+                    engine = GeneralSettings::Engine::Hybrid;
+                } else if (engineStr == "dd") {
+                    engine = GeneralSettings::Engine::Dd;
+                } else {
+                    STORM_LOG_THROW(false, storm::exceptions::IllegalArgumentValueException, "Unknown engine '" << engineStr << "'.");
+                }
+
+            }
+
             bool GeneralSettings::check() const {
                 // Ensure that the model was given either symbolically or explicitly.
                 STORM_LOG_THROW(!isSymbolicSet() || !isExplicitSet(), storm::exceptions::InvalidSettingsException, "The model may be either given in an explicit or a symbolic format, but not both.");

src/settings/modules/GeneralSettings.h

@@ -318,6 +318,11 @@ namespace storm {
                  */
                 Engine getEngine() const;
 
+                /*!
+                 * Sets the engine for further usage.
+                 */
+                void setEngine(Engine);
+
                 /*!
                  * Retrieves whether the PRISM compatibility mode was enabled.
                  *
@@ -349,11 +354,14 @@ namespace storm {
 
 
                 bool check() const override;
+                void finalize() override;
 
                 // The name of the module.
                 static const std::string moduleName;
 
             private:
+                Engine engine;
+
                 // Define the string names of the options as constants.
                 static const std::string helpOptionName;
                 static const std::string helpOptionShortName;