import net.sf.openrocket.startup.Application;
import net.sf.openrocket.util.BugException;
import net.sf.openrocket.util.ChangeSource;
+import net.sf.openrocket.util.SafetyMutex;
-
+/**
+ * A class defining a simulation, its conditions and simulated data.
+ * <p>
+ * This class is not thread-safe and enforces single-threaded access with a
+ * SafetyMutex.
+ *
+ * @author Sampo Niskanen <sampo.niskanen@iki.fi>
+ */
public class Simulation implements ChangeSource, Cloneable {
private static final LogHelper log = Application.getLogger();
NOT_SIMULATED
}
+ private final SafetyMutex mutex = new SafetyMutex();
private final Rocket rocket;
* @return the rocket.
*/
public Rocket getRocket() {
+ mutex.verify();
return rocket;
}
* @return a newly created Configuration of the launch conditions.
*/
public Configuration getConfiguration() {
+ mutex.verify();
Configuration c = new Configuration(rocket);
c.setMotorConfigurationID(conditions.getMotorConfigurationID());
c.setAllStages();
* @return the simulation conditions.
*/
public GUISimulationConditions getConditions() {
+ mutex.verify();
return conditions;
}
* @return the actual list of simulation listeners.
*/
public List<String> getSimulationListeners() {
+ mutex.verify();
return simulationListeners;
}
* @return the name for the simulation.
*/
public String getName() {
+ mutex.verify();
return name;
}
* @param name the name of the simulation.
*/
public void setName(String name) {
- if (this.name.equals(name))
- return;
-
- if (name == null)
- this.name = "";
- else
- this.name = name;
-
- fireChangeEvent();
+ mutex.lock("setName");
+ try {
+ if (this.name.equals(name))
+ return;
+
+ if (name == null)
+ this.name = "";
+ else
+ this.name = name;
+
+ fireChangeEvent();
+ } finally {
+ mutex.unlock("setName");
+ }
}
* @see Status
*/
public Status getStatus() {
+ mutex.verify();
+
if (status == Status.UPTODATE || status == Status.LOADED) {
if (rocket.getFunctionalModID() != simulatedRocketID ||
!conditions.equals(simulatedConditions))
public void simulate(SimulationListener... additionalListeners)
throws SimulationException {
-
- if (this.status == Status.EXTERNAL) {
- throw new SimulationException("Cannot simulate imported simulation.");
- }
-
- SimulationEngine simulator;
-
+ mutex.lock("simulate");
try {
- simulator = simulationEngineClass.newInstance();
- } catch (InstantiationException e) {
- throw new IllegalStateException("Cannot instantiate simulator.", e);
- } catch (IllegalAccessException e) {
- throw new IllegalStateException("Cannot access simulator instance?! BUG!", e);
- } catch (NullPointerException e) {
- throw new IllegalStateException("Simulator null", e);
- }
-
- SimulationConditions simulationConditions = conditions.toSimulationConditions();
- for (SimulationListener l : additionalListeners) {
- simulationConditions.getSimulationListenerList().add(l);
- }
-
- for (String className : simulationListeners) {
- SimulationListener l = null;
+
+ if (this.status == Status.EXTERNAL) {
+ throw new SimulationException("Cannot simulate imported simulation.");
+ }
+
+ SimulationEngine simulator;
+
try {
- Class<?> c = Class.forName(className);
- l = (SimulationListener) c.newInstance();
- } catch (Exception e) {
- throw new SimulationListenerException("Could not instantiate listener of " +
- "class: " + className, e);
+ simulator = simulationEngineClass.newInstance();
+ } catch (InstantiationException e) {
+ throw new IllegalStateException("Cannot instantiate simulator.", e);
+ } catch (IllegalAccessException e) {
+ throw new IllegalStateException("Cannot access simulator instance?! BUG!", e);
+ } catch (NullPointerException e) {
+ throw new IllegalStateException("Simulator null", e);
+ }
+
+ SimulationConditions simulationConditions = conditions.toSimulationConditions();
+ for (SimulationListener l : additionalListeners) {
+ simulationConditions.getSimulationListenerList().add(l);
+ }
+
+ for (String className : simulationListeners) {
+ SimulationListener l = null;
+ try {
+ Class<?> c = Class.forName(className);
+ l = (SimulationListener) c.newInstance();
+ } catch (Exception e) {
+ throw new SimulationListenerException("Could not instantiate listener of " +
+ "class: " + className, e);
+ }
+ simulationConditions.getSimulationListenerList().add(l);
}
- simulationConditions.getSimulationListenerList().add(l);
+
+ long t1, t2;
+ log.debug("Simulation: calling simulator");
+ t1 = System.currentTimeMillis();
+ simulatedData = simulator.simulate(simulationConditions);
+ t2 = System.currentTimeMillis();
+ log.debug("Simulation: returning from simulator, simulation took " + (t2 - t1) + "ms");
+
+ // Set simulated info after simulation, will not be set in case of exception
+ simulatedConditions = conditions.clone();
+ simulatedMotors = getConfiguration().getMotorConfigurationDescription();
+ simulatedRocketID = rocket.getFunctionalModID();
+
+ status = Status.UPTODATE;
+ fireChangeEvent();
+ } finally {
+ mutex.unlock("simulate");
}
-
- long t1, t2;
- log.debug("Simulation: calling simulator");
- t1 = System.currentTimeMillis();
- simulatedData = simulator.simulate(simulationConditions);
- t2 = System.currentTimeMillis();
- log.debug("Simulation: returning from simulator, simulation took " + (t2 - t1) + "ms");
-
- // Set simulated info after simulation, will not be set in case of exception
- simulatedConditions = conditions.clone();
- simulatedMotors = getConfiguration().getMotorConfigurationDescription();
- simulatedRocketID = rocket.getFunctionalModID();
-
- status = Status.UPTODATE;
- fireChangeEvent();
}
* @return the conditions used in the previous simulation, or <code>null</code>.
*/
public GUISimulationConditions getSimulatedConditions() {
+ mutex.verify();
return simulatedConditions;
}
* @see FlightData#getWarningSet()
*/
public WarningSet getSimulatedWarnings() {
+ mutex.verify();
if (simulatedData == null)
return null;
return simulatedData.getWarningSet();
* @see Rocket#getMotorConfigurationNameOrDescription(String)
*/
public String getSimulatedMotorDescription() {
+ mutex.verify();
return simulatedMotors;
}
* @return the flight data of the previous simulation, or <code>null</code>.
*/
public FlightData getSimulatedData() {
+ mutex.verify();
return simulatedData;
}
*/
@SuppressWarnings("unchecked")
public Simulation copy() {
+ mutex.lock("copy");
try {
Simulation copy = (Simulation) super.clone();
return copy;
-
} catch (CloneNotSupportedException e) {
throw new BugException("Clone not supported, BUG", e);
+ } finally {
+ mutex.unlock("copy");
}
}
*/
@SuppressWarnings("unchecked")
public Simulation duplicateSimulation(Rocket newRocket) {
- Simulation copy = new Simulation(newRocket);
-
- copy.name = this.name;
- copy.conditions.copyFrom(this.conditions);
- copy.simulationListeners = (ArrayList<String>) this.simulationListeners.clone();
- copy.simulationStepperClass = this.simulationStepperClass;
- copy.aerodynamicCalculatorClass = this.aerodynamicCalculatorClass;
-
- return copy;
+ mutex.lock("duplicateSimulation");
+ try {
+ Simulation copy = new Simulation(newRocket);
+
+ copy.name = this.name;
+ copy.conditions.copyFrom(this.conditions);
+ copy.simulationListeners = (ArrayList<String>) this.simulationListeners.clone();
+ copy.simulationStepperClass = this.simulationStepperClass;
+ copy.aerodynamicCalculatorClass = this.aerodynamicCalculatorClass;
+
+ return copy;
+ } finally {
+ mutex.unlock("duplicateSimulation");
+ }
}
@Override
public void addChangeListener(ChangeListener listener) {
+ mutex.verify();
listeners.add(listener);
}
@Override
public void removeChangeListener(ChangeListener listener) {
+ mutex.verify();
listeners.remove(listener);
}
projects / debian / openrocket / blobdiff