refactored file package
[debian/openrocket] / src / net / sf / openrocket / file / openrocket / OpenRocketLoader.java
diff --git a/src/net/sf/openrocket/file/openrocket/OpenRocketLoader.java b/src/net/sf/openrocket/file/openrocket/OpenRocketLoader.java
new file mode 100644 (file)
index 0000000..3b7b23d
--- /dev/null
@@ -0,0 +1,1978 @@
+package net.sf.openrocket.file.openrocket;
+
+import java.awt.Color;
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+import net.sf.openrocket.aerodynamics.Warning;
+import net.sf.openrocket.aerodynamics.WarningSet;
+import net.sf.openrocket.database.Databases;
+import net.sf.openrocket.document.OpenRocketDocument;
+import net.sf.openrocket.document.Simulation;
+import net.sf.openrocket.document.StorageOptions;
+import net.sf.openrocket.document.Simulation.Status;
+import net.sf.openrocket.file.RocketLoadException;
+import net.sf.openrocket.file.RocketLoader;
+import net.sf.openrocket.file.simplesax.ElementHandler;
+import net.sf.openrocket.file.simplesax.PlainTextHandler;
+import net.sf.openrocket.file.simplesax.SimpleSAX;
+import net.sf.openrocket.material.Material;
+import net.sf.openrocket.motor.Motor;
+import net.sf.openrocket.rocketcomponent.BodyComponent;
+import net.sf.openrocket.rocketcomponent.BodyTube;
+import net.sf.openrocket.rocketcomponent.Bulkhead;
+import net.sf.openrocket.rocketcomponent.CenteringRing;
+import net.sf.openrocket.rocketcomponent.ClusterConfiguration;
+import net.sf.openrocket.rocketcomponent.Clusterable;
+import net.sf.openrocket.rocketcomponent.EllipticalFinSet;
+import net.sf.openrocket.rocketcomponent.EngineBlock;
+import net.sf.openrocket.rocketcomponent.ExternalComponent;
+import net.sf.openrocket.rocketcomponent.FinSet;
+import net.sf.openrocket.rocketcomponent.FreeformFinSet;
+import net.sf.openrocket.rocketcomponent.IllegalFinPointException;
+import net.sf.openrocket.rocketcomponent.InnerTube;
+import net.sf.openrocket.rocketcomponent.InternalComponent;
+import net.sf.openrocket.rocketcomponent.LaunchLug;
+import net.sf.openrocket.rocketcomponent.MassComponent;
+import net.sf.openrocket.rocketcomponent.MassObject;
+import net.sf.openrocket.rocketcomponent.MotorMount;
+import net.sf.openrocket.rocketcomponent.NoseCone;
+import net.sf.openrocket.rocketcomponent.Parachute;
+import net.sf.openrocket.rocketcomponent.RadiusRingComponent;
+import net.sf.openrocket.rocketcomponent.RecoveryDevice;
+import net.sf.openrocket.rocketcomponent.ReferenceType;
+import net.sf.openrocket.rocketcomponent.RingComponent;
+import net.sf.openrocket.rocketcomponent.Rocket;
+import net.sf.openrocket.rocketcomponent.RocketComponent;
+import net.sf.openrocket.rocketcomponent.ShockCord;
+import net.sf.openrocket.rocketcomponent.Stage;
+import net.sf.openrocket.rocketcomponent.Streamer;
+import net.sf.openrocket.rocketcomponent.StructuralComponent;
+import net.sf.openrocket.rocketcomponent.SymmetricComponent;
+import net.sf.openrocket.rocketcomponent.ThicknessRingComponent;
+import net.sf.openrocket.rocketcomponent.Transition;
+import net.sf.openrocket.rocketcomponent.TrapezoidFinSet;
+import net.sf.openrocket.rocketcomponent.TubeCoupler;
+import net.sf.openrocket.rocketcomponent.ExternalComponent.Finish;
+import net.sf.openrocket.rocketcomponent.FinSet.TabRelativePosition;
+import net.sf.openrocket.rocketcomponent.RocketComponent.Position;
+import net.sf.openrocket.simulation.FlightData;
+import net.sf.openrocket.simulation.FlightDataBranch;
+import net.sf.openrocket.simulation.FlightEvent;
+import net.sf.openrocket.simulation.SimulationConditions;
+import net.sf.openrocket.simulation.FlightEvent.Type;
+import net.sf.openrocket.unit.UnitGroup;
+import net.sf.openrocket.util.Coordinate;
+import net.sf.openrocket.util.LineStyle;
+import net.sf.openrocket.util.Reflection;
+
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+
+/**
+ * Class that loads a rocket definition from an OpenRocket rocket file.
+ * <p>
+ * This class uses SAX to read the XML file format.  The 
+ * {@link #loadFromStream(InputStream)} method simply sets the system up and 
+ * starts the parsing, while the actual logic is in the private inner class
+ * <code>OpenRocketHandler</code>.
+ * 
+ * @author Sampo Niskanen <sampo.niskanen@iki.fi>
+ */
+
+public class OpenRocketLoader extends RocketLoader {
+       
+       @Override
+       public OpenRocketDocument loadFromStream(InputStream source) throws RocketLoadException,
+                       IOException {
+               InputSource xmlSource = new InputSource(source);
+               OpenRocketHandler handler = new OpenRocketHandler();
+
+               
+               try {
+                       SimpleSAX.readXML(xmlSource, handler, warnings);
+               } catch (SAXException e) {
+                       throw new RocketLoadException("Malformed XML in input.", e);
+               }
+
+               
+               OpenRocketDocument doc = handler.getDocument();
+               doc.getDefaultConfiguration().setAllStages();
+               
+               // Deduce suitable time skip
+               double timeSkip = StorageOptions.SIMULATION_DATA_NONE;
+               for (Simulation s: doc.getSimulations()) {
+                       if (s.getStatus() == Simulation.Status.EXTERNAL ||
+                                       s.getStatus() == Simulation.Status.NOT_SIMULATED)
+                               continue;
+                       if (s.getSimulatedData() == null)
+                               continue;
+                       if (s.getSimulatedData().getBranchCount() == 0)
+                               continue;
+                       FlightDataBranch branch = s.getSimulatedData().getBranch(0);
+                       if (branch == null)
+                               continue;
+                       List<Double> list = branch.get(FlightDataBranch.TYPE_TIME);
+                       if (list == null)
+                               continue;
+                       
+                       double previousTime = Double.NaN;
+                       for (double time: list) {
+                               if (time - previousTime < timeSkip)
+                                       timeSkip = time-previousTime;
+                               previousTime = time;
+                       }
+               }
+               // Round value
+               timeSkip = Math.rint(timeSkip*100)/100;
+
+               doc.getDefaultStorageOptions().setSimulationTimeSkip(timeSkip);
+               doc.getDefaultStorageOptions().setCompressionEnabled(false); // Set by caller if compressed
+               doc.getDefaultStorageOptions().setExplicitlySet(false);
+               
+               doc.clearUndo();
+               return doc;
+       }
+
+}
+
+
+
+class DocumentConfig {
+
+       /* Remember to update OpenRocketSaver as well! */
+       public static final String[] SUPPORTED_VERSIONS = { "0.9", "1.0", "1.1" };
+
+
+       ////////  Component constructors
+       static final HashMap<String, Constructor<? extends RocketComponent>> constructors = new HashMap<String, Constructor<? extends RocketComponent>>();
+       static {
+               try {
+                       // External components
+                       constructors.put("bodytube", BodyTube.class.getConstructor(new Class<?>[0]));
+                       constructors.put("transition", Transition.class.getConstructor(new Class<?>[0]));
+                       constructors.put("nosecone", NoseCone.class.getConstructor(new Class<?>[0]));
+                       constructors.put("trapezoidfinset", TrapezoidFinSet.class.getConstructor(new Class<?>[0]));
+                       constructors.put("ellipticalfinset", EllipticalFinSet.class.getConstructor(new Class<?>[0]));
+                       constructors.put("freeformfinset", FreeformFinSet.class.getConstructor(new Class<?>[0]));
+                       constructors.put("launchlug", LaunchLug.class.getConstructor(new Class<?>[0]));
+
+                       // Internal components
+                       constructors.put("engineblock", EngineBlock.class.getConstructor(new Class<?>[0]));
+                       constructors.put("innertube", InnerTube.class.getConstructor(new Class<?>[0]));
+                       constructors.put("tubecoupler", TubeCoupler.class.getConstructor(new Class<?>[0]));
+                       constructors.put("bulkhead", Bulkhead.class.getConstructor(new Class<?>[0]));
+                       constructors.put("centeringring", CenteringRing.class.getConstructor(new Class<?>[0]));
+                       
+                       constructors.put("masscomponent", MassComponent.class.getConstructor(new Class<?>[0]));
+                       constructors.put("shockcord", ShockCord.class.getConstructor(new Class<?>[0]));
+                       constructors.put("parachute", Parachute.class.getConstructor(new Class<?>[0]));
+                       constructors.put("streamer", Streamer.class.getConstructor(new Class<?>[0]));
+                       
+                       // Other
+                       constructors.put("stage", Stage.class.getConstructor(new Class<?>[0]));
+                       
+               } catch (NoSuchMethodException e) {
+                       throw new RuntimeException(
+                                       "Error in constructing the 'constructors' HashMap.");
+               }
+       }
+
+
+       ////////  Parameter setters
+       /*
+        * The keys are of the form Class:param, where Class is the class name and param
+        * the element name.  Setters are searched for in descending class order.
+        * A setter of null means setting the parameter is not allowed.
+        */
+       static final HashMap<String, Setter> setters = new HashMap<String, Setter>();
+       static {
+               // RocketComponent
+               setters.put("RocketComponent:name", new StringSetter(
+                               Reflection.findMethodStatic(RocketComponent.class, "setName", String.class)));
+               setters.put("RocketComponent:color", new ColorSetter(
+                               Reflection.findMethodStatic(RocketComponent.class, "setColor", Color.class)));
+               setters.put("RocketComponent:linestyle", new EnumSetter<LineStyle>(
+                               Reflection.findMethodStatic(RocketComponent.class, "setLineStyle", LineStyle.class),
+                               LineStyle.class));
+               setters.put("RocketComponent:position", new PositionSetter());
+               setters.put("RocketComponent:overridemass", new OverrideSetter(
+                               Reflection.findMethodStatic(RocketComponent.class, "setOverrideMass", double.class),
+                               Reflection.findMethodStatic(RocketComponent.class, "setMassOverridden", boolean.class)));
+               setters.put("RocketComponent:overridecg", new OverrideSetter(
+                               Reflection.findMethodStatic(RocketComponent.class, "setOverrideCGX", double.class),
+                               Reflection.findMethodStatic(RocketComponent.class, "setCGOverridden", boolean.class)));
+               setters.put("RocketComponent:overridesubcomponents", new BooleanSetter(
+                               Reflection.findMethodStatic(RocketComponent.class, "setOverrideSubcomponents", boolean.class)));
+               setters.put("RocketComponent:comment", new StringSetter(
+                               Reflection.findMethodStatic(RocketComponent.class, "setComment", String.class)));
+               
+               // ExternalComponent
+               setters.put("ExternalComponent:finish", new EnumSetter<Finish>(
+                               Reflection.findMethodStatic(ExternalComponent.class, "setFinish", Finish.class),
+                               Finish.class));
+               setters.put("ExternalComponent:material", new MaterialSetter(
+                               Reflection.findMethodStatic(ExternalComponent.class, "setMaterial", Material.class),
+                               Material.Type.BULK));
+                               
+               // BodyComponent
+               setters.put("BodyComponent:length", new DoubleSetter(
+                               Reflection.findMethodStatic(BodyComponent.class, "setLength", double.class)));
+               
+               // SymmetricComponent
+               setters.put("SymmetricComponent:thickness", new DoubleSetter(
+                               Reflection.findMethodStatic(SymmetricComponent.class,"setThickness", double.class), 
+                               "filled", 
+                               Reflection.findMethodStatic(SymmetricComponent.class,"setFilled", boolean.class)));
+               
+               // BodyTube
+               setters.put("BodyTube:radius", new DoubleSetter(
+                               Reflection.findMethodStatic(BodyTube.class, "setRadius", double.class), 
+                               "auto",
+                               Reflection.findMethodStatic(BodyTube.class,"setRadiusAutomatic", boolean.class)));
+                               
+               // Transition
+               setters.put("Transition:shape", new EnumSetter<Transition.Shape>(
+                               Reflection.findMethodStatic(Transition.class, "setType", Transition.Shape.class),
+                               Transition.Shape.class));
+               setters.put("Transition:shapeclipped", new BooleanSetter(
+                               Reflection.findMethodStatic(Transition.class, "setClipped", boolean.class)));
+               setters.put("Transition:shapeparameter", new DoubleSetter(
+                               Reflection.findMethodStatic(Transition.class, "setShapeParameter", double.class)));
+                               
+               setters.put("Transition:foreradius", new DoubleSetter(
+                               Reflection.findMethodStatic(Transition.class, "setForeRadius", double.class),
+                               "auto",
+                               Reflection.findMethodStatic(Transition.class, "setForeRadiusAutomatic", boolean.class)));
+               setters.put("Transition:aftradius", new DoubleSetter(
+                               Reflection.findMethodStatic(Transition.class, "setAftRadius", double.class),
+                               "auto",
+                               Reflection.findMethodStatic(Transition.class, "setAftRadiusAutomatic", boolean.class)));
+
+               setters.put("Transition:foreshoulderradius", new DoubleSetter(
+                               Reflection.findMethodStatic(Transition.class, "setForeShoulderRadius", double.class)));
+               setters.put("Transition:foreshoulderlength", new DoubleSetter(
+                               Reflection.findMethodStatic(Transition.class, "setForeShoulderLength", double.class)));
+               setters.put("Transition:foreshoulderthickness", new DoubleSetter(
+                               Reflection.findMethodStatic(Transition.class, "setForeShoulderThickness", double.class)));
+               setters.put("Transition:foreshouldercapped", new BooleanSetter(
+                               Reflection.findMethodStatic(Transition.class, "setForeShoulderCapped", boolean.class)));
+               
+               setters.put("Transition:aftshoulderradius", new DoubleSetter(
+                               Reflection.findMethodStatic(Transition.class, "setAftShoulderRadius", double.class)));
+               setters.put("Transition:aftshoulderlength", new DoubleSetter(
+                               Reflection.findMethodStatic(Transition.class, "setAftShoulderLength", double.class)));
+               setters.put("Transition:aftshoulderthickness", new DoubleSetter(
+                               Reflection.findMethodStatic(Transition.class, "setAftShoulderThickness", double.class)));
+               setters.put("Transition:aftshouldercapped", new BooleanSetter(
+                               Reflection.findMethodStatic(Transition.class, "setAftShoulderCapped", boolean.class)));
+               
+               // NoseCone - disable disallowed elements
+               setters.put("NoseCone:foreradius", null);
+               setters.put("NoseCone:foreshoulderradius", null);
+               setters.put("NoseCone:foreshoulderlength", null);
+               setters.put("NoseCone:foreshoulderthickness", null);
+               setters.put("NoseCone:foreshouldercapped", null);
+               
+               // FinSet
+               setters.put("FinSet:fincount", new IntSetter(
+                               Reflection.findMethodStatic(FinSet.class, "setFinCount", int.class)));
+               setters.put("FinSet:rotation", new DoubleSetter(
+                               Reflection.findMethodStatic(FinSet.class, "setBaseRotation", double.class), Math.PI/180.0));
+               setters.put("FinSet:thickness", new DoubleSetter(
+                               Reflection.findMethodStatic(FinSet.class, "setThickness", double.class)));
+               setters.put("FinSet:crosssection", new EnumSetter<FinSet.CrossSection>(
+                               Reflection.findMethodStatic(FinSet.class, "setCrossSection", FinSet.CrossSection.class),
+                               FinSet.CrossSection.class));
+               setters.put("FinSet:cant", new DoubleSetter(
+                               Reflection.findMethodStatic(FinSet.class, "setCantAngle", double.class), Math.PI/180.0));
+               setters.put("FinSet:tabheight", new DoubleSetter(
+                               Reflection.findMethodStatic(FinSet.class, "setTabHeight", double.class)));
+               setters.put("FinSet:tablength", new DoubleSetter(
+                               Reflection.findMethodStatic(FinSet.class, "setTabLength", double.class)));
+               setters.put("FinSet:tabposition", new FinTabPositionSetter());
+               
+               // TrapezoidFinSet
+               setters.put("TrapezoidFinSet:rootchord", new DoubleSetter(
+                               Reflection.findMethodStatic(TrapezoidFinSet.class, "setRootChord", double.class)));
+               setters.put("TrapezoidFinSet:tipchord", new DoubleSetter(
+                               Reflection.findMethodStatic(TrapezoidFinSet.class, "setTipChord", double.class)));
+               setters.put("TrapezoidFinSet:sweeplength", new DoubleSetter(
+                               Reflection.findMethodStatic(TrapezoidFinSet.class, "setSweep", double.class)));
+               setters.put("TrapezoidFinSet:height", new DoubleSetter(
+                               Reflection.findMethodStatic(TrapezoidFinSet.class, "setHeight", double.class)));
+
+               // EllipticalFinSet
+               setters.put("EllipticalFinSet:rootchord", new DoubleSetter(
+                               Reflection.findMethodStatic(EllipticalFinSet.class, "setLength", double.class)));
+               setters.put("EllipticalFinSet:height", new DoubleSetter(
+                               Reflection.findMethodStatic(EllipticalFinSet.class, "setHeight", double.class)));
+               
+               // FreeformFinSet points handled as a special handler
+               
+               // LaunchLug
+               setters.put("LaunchLug:radius", new DoubleSetter(
+                               Reflection.findMethodStatic(LaunchLug.class, "setRadius", double.class)));
+               setters.put("LaunchLug:length", new DoubleSetter(
+                               Reflection.findMethodStatic(LaunchLug.class, "setLength", double.class)));
+               setters.put("LaunchLug:thickness", new DoubleSetter(
+                               Reflection.findMethodStatic(LaunchLug.class, "setThickness", double.class)));
+               setters.put("LaunchLug:radialdirection", new DoubleSetter(
+                               Reflection.findMethodStatic(LaunchLug.class, "setRadialDirection", double.class),
+                               Math.PI/180.0));
+               
+               // InternalComponent - nothing
+               
+               // StructuralComponent
+               setters.put("StructuralComponent:material", new MaterialSetter(
+                               Reflection.findMethodStatic(StructuralComponent.class, "setMaterial", Material.class),
+                               Material.Type.BULK));
+               
+               // RingComponent
+               setters.put("RingComponent:length", new DoubleSetter(
+                               Reflection.findMethodStatic(RingComponent.class, "setLength", double.class)));
+               setters.put("RingComponent:radialposition", new DoubleSetter(
+                               Reflection.findMethodStatic(RingComponent.class, "setRadialPosition", double.class)));
+               setters.put("RingComponent:radialdirection", new DoubleSetter(
+                               Reflection.findMethodStatic(RingComponent.class, "setRadialDirection", double.class),
+                               Math.PI / 180.0));
+               
+               // ThicknessRingComponent - radius on separate components due to differing automatics
+               setters.put("ThicknessRingComponent:thickness", new DoubleSetter(
+                               Reflection.findMethodStatic(ThicknessRingComponent.class, "setThickness", double.class)));
+
+               // EngineBlock
+               setters.put("EngineBlock:outerradius", new DoubleSetter(
+                               Reflection.findMethodStatic(EngineBlock.class, "setOuterRadius", double.class),
+                               "auto",
+                               Reflection.findMethodStatic(EngineBlock.class, "setOuterRadiusAutomatic", boolean.class)));
+
+               // TubeCoupler
+               setters.put("TubeCoupler:outerradius", new DoubleSetter(
+                               Reflection.findMethodStatic(TubeCoupler.class, "setOuterRadius", double.class),
+                               "auto",
+                               Reflection.findMethodStatic(TubeCoupler.class, "setOuterRadiusAutomatic", boolean.class)));
+               
+               // InnerTube
+               setters.put("InnerTube:outerradius", new DoubleSetter(
+                               Reflection.findMethodStatic(InnerTube.class, "setOuterRadius", double.class)));
+               setters.put("InnerTube:clusterconfiguration", new ClusterConfigurationSetter());
+               setters.put("InnerTube:clusterscale", new DoubleSetter(
+                               Reflection.findMethodStatic(InnerTube.class, "setClusterScale", double.class)));
+               setters.put("InnerTube:clusterrotation", new DoubleSetter(
+                               Reflection.findMethodStatic(InnerTube.class, "setClusterRotation", double.class),
+                               Math.PI / 180.0));
+               
+               // RadiusRingComponent
+               
+               // Bulkhead
+               setters.put("RadiusRingComponent:innerradius", new DoubleSetter(
+                               Reflection.findMethodStatic(RadiusRingComponent.class, "setInnerRadius", double.class)));
+               setters.put("Bulkhead:outerradius", new DoubleSetter(
+                               Reflection.findMethodStatic(Bulkhead.class, "setOuterRadius", double.class),
+                               "auto",
+                               Reflection.findMethodStatic(Bulkhead.class, "setOuterRadiusAutomatic", boolean.class)));
+               
+               // CenteringRing
+               setters.put("CenteringRing:innerradius", new DoubleSetter(
+                               Reflection.findMethodStatic(CenteringRing.class, "setInnerRadius", double.class),
+                               "auto",
+                               Reflection.findMethodStatic(CenteringRing.class, "setInnerRadiusAutomatic", boolean.class)));
+               setters.put("CenteringRing:outerradius", new DoubleSetter(
+                               Reflection.findMethodStatic(CenteringRing.class, "setOuterRadius", double.class),
+                               "auto",
+                               Reflection.findMethodStatic(CenteringRing.class, "setOuterRadiusAutomatic", boolean.class)));
+               
+               
+               // MassObject
+               setters.put("MassObject:packedlength", new DoubleSetter(
+                               Reflection.findMethodStatic(MassObject.class, "setLength", double.class)));
+               setters.put("MassObject:packedradius", new DoubleSetter(
+                               Reflection.findMethodStatic(MassObject.class, "setRadius", double.class)));
+               setters.put("MassObject:radialposition", new DoubleSetter(
+                               Reflection.findMethodStatic(MassObject.class, "setRadialPosition", double.class)));
+               setters.put("MassObject:radialdirection", new DoubleSetter(
+                               Reflection.findMethodStatic(MassObject.class, "setRadialDirection", double.class),
+                               Math.PI / 180.0));
+               
+               // MassComponent
+               setters.put("MassComponent:mass", new DoubleSetter(
+                               Reflection.findMethodStatic(MassComponent.class, "setComponentMass", double.class)));
+               
+               // ShockCord
+               setters.put("ShockCord:cordlength", new DoubleSetter(
+                               Reflection.findMethodStatic(ShockCord.class, "setCordLength", double.class)));
+               setters.put("ShockCord:material", new MaterialSetter(
+                               Reflection.findMethodStatic(ShockCord.class, "setMaterial", Material.class),
+                               Material.Type.LINE));
+               
+               // RecoveryDevice
+               setters.put("RecoveryDevice:cd", new DoubleSetter(
+                               Reflection.findMethodStatic(RecoveryDevice.class, "setCD", double.class),
+                               "auto",
+                               Reflection.findMethodStatic(RecoveryDevice.class, "setCDAutomatic", boolean.class)));
+               setters.put("RecoveryDevice:deployevent", new EnumSetter<RecoveryDevice.DeployEvent>(
+                               Reflection.findMethodStatic(RecoveryDevice.class, "setDeployEvent", RecoveryDevice.DeployEvent.class),
+                               RecoveryDevice.DeployEvent.class));
+               setters.put("RecoveryDevice:deployaltitude", new DoubleSetter(
+                               Reflection.findMethodStatic(RecoveryDevice.class, "setDeployAltitude", double.class)));
+               setters.put("RecoveryDevice:deploydelay", new DoubleSetter(
+                               Reflection.findMethodStatic(RecoveryDevice.class, "setDeployDelay", double.class)));
+               setters.put("RecoveryDevice:material", new MaterialSetter(
+                               Reflection.findMethodStatic(RecoveryDevice.class, "setMaterial", Material.class),
+                               Material.Type.SURFACE));
+               
+               // Parachute
+               setters.put("Parachute:diameter", new DoubleSetter(
+                               Reflection.findMethodStatic(Parachute.class, "setDiameter", double.class)));
+               setters.put("Parachute:linecount", new IntSetter(
+                               Reflection.findMethodStatic(Parachute.class, "setLineCount", int.class)));
+               setters.put("Parachute:linelength", new DoubleSetter(
+                               Reflection.findMethodStatic(Parachute.class, "setLineLength", double.class)));
+               setters.put("Parachute:linematerial", new MaterialSetter(
+                               Reflection.findMethodStatic(Parachute.class, "setLineMaterial", Material.class),
+                               Material.Type.LINE));
+
+               // Streamer
+               setters.put("Streamer:striplength", new DoubleSetter(
+                               Reflection.findMethodStatic(Streamer.class, "setStripLength", double.class)));
+               setters.put("Streamer:stripwidth", new DoubleSetter(
+                               Reflection.findMethodStatic(Streamer.class, "setStripWidth", double.class)));
+               
+               // Rocket
+               // <motorconfiguration> handled by separate handler
+               setters.put("Rocket:referencetype", new EnumSetter<ReferenceType>(
+                               Reflection.findMethodStatic(Rocket.class, "setReferenceType", ReferenceType.class),
+                               ReferenceType.class));
+               setters.put("Rocket:customreference", new DoubleSetter(
+                               Reflection.findMethodStatic(Rocket.class, "setCustomReferenceLength", double.class)));
+               setters.put("Rocket:designer", new StringSetter(
+                               Reflection.findMethodStatic(Rocket.class, "setDesigner", String.class)));
+               setters.put("Rocket:revision", new StringSetter(
+                               Reflection.findMethodStatic(Rocket.class, "setRevision", String.class)));
+       }
+       
+       
+       /**
+        * Search for a enum value that has the corresponding name as an XML value.  The current
+        * conversion from enum name to XML value is to lowercase the name and strip out all 
+        * underscore characters.  This method returns a match to these criteria, or <code>null</code>
+        * if no such enum exists.
+        * 
+        * @param <T>                   then enum type.
+        * @param name                  the XML value, null ok.
+        * @param enumClass             the class of the enum.
+        * @return                              the found enum value, or <code>null</code>.
+        */
+       public static <T extends Enum<T>> Enum<T> findEnum(String name, 
+                       Class<? extends Enum<T>> enumClass) {
+               
+               if (name == null)
+                       return null;
+               name = name.trim();
+               for (Enum<T> e: enumClass.getEnumConstants()) {
+                       if (e.name().toLowerCase().replace("_", "").equals(name)) {
+                               return e;
+                       }
+               }
+               return null;
+       }
+       
+       
+       /**
+        * Convert a string to a double including formatting specifications of the OpenRocket
+        * file format.  This accepts all formatting that is valid for 
+        * <code>Double.parseDouble(s)</code> and a few others as well ("Inf", "-Inf").
+        * 
+        * @param s             the string to parse.
+        * @return              the numerical value.
+        * @throws NumberFormatException        the the string cannot be parsed.
+        */
+       public static double stringToDouble(String s) throws NumberFormatException {
+               if (s == null)
+                       throw new NumberFormatException("null string");
+               if (s.equalsIgnoreCase("NaN"))
+                       return Double.NaN;
+               if (s.equalsIgnoreCase("Inf"))
+                       return Double.POSITIVE_INFINITY;
+               if (s.equalsIgnoreCase("-Inf"))
+                       return Double.NEGATIVE_INFINITY;
+               return Double.parseDouble(s);
+       }
+}
+
+
+
+
+
+/**
+ * The starting point of the handlers.  Accepts a single <openrocket> element and hands
+ * the contents to be read by a OpenRocketContentsHandler.
+ */
+class OpenRocketHandler extends ElementHandler {
+       private OpenRocketContentHandler handler = null;
+
+       /**
+        * Return the OpenRocketDocument read from the file, or <code>null</code> if a document
+        * has not been read yet.
+        * 
+        * @return      the document read, or null.
+        */
+       public OpenRocketDocument getDocument() {
+               return handler.getDocument();
+       }
+
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+
+               // Check for unknown elements
+               if (!element.equals("openrocket")) {
+                       warnings.add(Warning.fromString("Unknown element " + element + ", ignoring."));
+                       return null;
+               }
+
+               // Check for first call
+               if (handler != null) {
+                       warnings.add(Warning.fromString("Multiple document elements found, ignoring later "
+                                                       + "ones."));
+                       return null;
+               }
+
+               // Check version number
+               String version = null;
+               String creator = attributes.remove("creator");
+               String docVersion = attributes.remove("version");
+               for (String v : DocumentConfig.SUPPORTED_VERSIONS) {
+                       if (v.equals(docVersion)) {
+                               version = v;
+                               break;
+                       }
+               }
+               if (version == null) {
+                       String str = "Unsupported document version";
+                       if (docVersion != null)
+                               str += " " + docVersion;
+                       if (creator != null && !creator.trim().equals(""))
+                               str += " (written using '" + creator.trim() + "')";
+                       str += ", attempting to read file anyway.";
+                       warnings.add(str);
+               }
+
+               handler = new OpenRocketContentHandler();
+               return handler;
+       }
+
+       @Override
+       public void closeElement(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) throws SAXException {
+               attributes.remove("version");
+               attributes.remove("creator");
+               super.closeElement(element, attributes, content, warnings);
+       }
+       
+       
+}
+
+
+/**
+ * Handles the content of the <openrocket> tag.
+ */
+class OpenRocketContentHandler extends ElementHandler {
+       private final OpenRocketDocument doc;
+       private final Rocket rocket;
+
+       private boolean rocketDefined = false;
+       private boolean simulationsDefined = false;
+
+       public OpenRocketContentHandler() {
+               this.rocket = new Rocket();
+               this.doc = new OpenRocketDocument(rocket);
+       }
+
+
+       public OpenRocketDocument getDocument() {
+               if (!rocketDefined)
+                       return null;
+               return doc;
+       }
+
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+
+               if (element.equals("rocket")) {
+                       if (rocketDefined) {
+                               warnings.add(Warning
+                                               .fromString("Multiple rocket designs within one document, "
+                                                               + "ignoring later ones."));
+                               return null;
+                       }
+                       rocketDefined = true;
+                       return new ComponentParameterHandler(rocket);
+               }
+               
+               if (element.equals("simulations")) {
+                       if (simulationsDefined) {
+                               warnings.add(Warning
+                                               .fromString("Multiple simulation definitions within one document, "
+                                                               + "ignoring later ones."));
+                               return null;
+                       }
+                       simulationsDefined = true;
+                       return new SimulationsHandler(doc);
+               }
+
+               warnings.add(Warning.fromString("Unknown element " + element + ", ignoring."));
+
+               return null;
+       }
+}
+
+
+
+
+/**
+ * A handler that creates components from the corresponding elements.  The control of the
+ * contents is passed on to ComponentParameterHandler.
+ */
+class ComponentHandler extends ElementHandler {
+       private final RocketComponent parent;
+
+       public ComponentHandler(RocketComponent parent) {
+               this.parent = parent;
+       }
+
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+
+               // Attempt to construct new component
+               Constructor<? extends RocketComponent> constructor = DocumentConfig.constructors
+                               .get(element);
+               if (constructor == null) {
+                       warnings.add(Warning.fromString("Unknown element " + element + ", ignoring."));
+                       return null;
+               }
+
+               RocketComponent c;
+               try {
+                       c = constructor.newInstance();
+               } catch (InstantiationException e) {
+                       throw new RuntimeException("Error constructing component.", e);
+               } catch (IllegalAccessException e) {
+                       throw new RuntimeException("Error constructing component.", e);
+               } catch (InvocationTargetException e) {
+                       throw new RuntimeException("Error constructing component.", e);
+               }
+
+               parent.addChild(c);
+
+               return new ComponentParameterHandler(c);
+       }
+}
+
+
+/**
+ * A handler that populates the parameters of a previously constructed rocket component.
+ * This uses the setters, or delegates the handling to another handler for specific
+ * elements.
+ */
+class ComponentParameterHandler extends ElementHandler {
+       private final RocketComponent component;
+
+       public ComponentParameterHandler(RocketComponent c) {
+               this.component = c;
+       }
+
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               
+               // Check for specific elements that contain other elements
+               if (element.equals("subcomponents")) {
+                       return new ComponentHandler(component);
+               }
+               if (element.equals("motormount")) {
+                       if (!(component instanceof MotorMount)) {
+                               warnings.add(Warning.fromString("Illegal component defined as motor mount."));
+                               return null;
+                       }
+                       return new MotorMountHandler((MotorMount)component);
+               }
+               if (element.equals("finpoints")) {
+                       if (!(component instanceof FreeformFinSet)) {
+                               warnings.add(Warning.fromString("Illegal component defined for fin points."));
+                               return null;
+                       }
+                       return new FinSetPointHandler((FreeformFinSet)component);
+               }
+               if (element.equals("motorconfiguration")) {
+                       if (!(component instanceof Rocket)) {
+                               warnings.add(Warning.fromString("Illegal component defined for motor configuration."));
+                               return null;
+                       }
+                       return new MotorConfigurationHandler((Rocket)component);
+               }
+               
+               
+               return PlainTextHandler.INSTANCE;
+       }
+
+       @Override
+       public void closeElement(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) {
+
+               if (element.equals("subcomponents") || element.equals("motormount") ||
+                               element.equals("finpoints") || element.equals("motorconfiguration")) {
+                       return;
+               }
+               
+               // Search for the correct setter class
+
+               Class<?> c;
+               for (c = component.getClass(); c != null; c = c.getSuperclass()) {
+                       String setterKey = c.getSimpleName() + ":" + element;
+                       Setter s = DocumentConfig.setters.get(setterKey);
+                       if (s != null) {
+                               // Setter found
+                               System.out.println("Calling with key "+setterKey);
+                               s.set(component, content, attributes, warnings);
+                               break;
+                       }
+                       if (DocumentConfig.setters.containsKey(setterKey)) {
+                               // Key exists but is null -> invalid parameter
+                               c = null;
+                               break;
+                       }
+               }
+               if (c == null) {
+                       warnings.add(Warning.fromString("Unknown parameter type '" + element + "' for "
+                                       + component.getComponentName() + ", ignoring."));
+               }
+       }
+}
+
+
+/**
+ * A handler that reads the <point> specifications within the freeformfinset's
+ * <finpoints> elements.
+ */
+class FinSetPointHandler extends ElementHandler {
+       private final FreeformFinSet finset;
+       private final ArrayList<Coordinate> coordinates = new ArrayList<Coordinate>();
+       
+       public FinSetPointHandler(FreeformFinSet finset) {
+               this.finset = finset;
+       }
+       
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               return PlainTextHandler.INSTANCE;
+       }
+       
+
+       @Override
+       public void closeElement(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) throws SAXException {
+
+               String strx = attributes.remove("x");
+               String stry = attributes.remove("y");
+               if (strx == null || stry == null) {
+                       warnings.add(Warning.fromString("Illegal fin points specification, ignoring."));
+                       return;
+               }
+               try {
+                       double x = Double.parseDouble(strx);
+                       double y = Double.parseDouble(stry);
+                       coordinates.add(new Coordinate(x,y));
+               } catch (NumberFormatException e) {
+                       warnings.add(Warning.fromString("Illegal fin points specification, ignoring."));
+                       return;
+               }
+               
+               super.closeElement(element, attributes, content, warnings);
+       }
+       
+       @Override
+       public void endHandler(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) {
+               try {
+                       finset.setPoints(coordinates.toArray(new Coordinate[0]));
+               } catch (IllegalFinPointException e) {
+                       warnings.add(Warning.fromString("Freeform fin set point definitions illegal, ignoring."));
+               }
+       }
+}
+
+
+class MotorMountHandler extends ElementHandler {
+       private final MotorMount mount;
+       private MotorHandler motorHandler;
+       
+       public MotorMountHandler(MotorMount mount) {
+               this.mount = mount;
+               mount.setMotorMount(true);
+       }
+
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+
+               if (element.equals("motor")) {
+                       motorHandler = new MotorHandler();
+                       return motorHandler;
+               }
+               
+               if (element.equals("ignitionevent") ||
+                               element.equals("ignitiondelay") ||
+                               element.equals("overhang")) {
+                       return PlainTextHandler.INSTANCE;
+               }
+               
+               warnings.add(Warning.fromString("Unknown element '"+element+"' encountered, ignoring."));
+               return null;
+       }
+       
+       
+
+       @Override
+       public void closeElement(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) throws SAXException {
+
+               if (element.equals("motor")) {
+                       String id = attributes.get("configid");
+                       if (id == null || id.equals("")) {
+                               warnings.add(Warning.fromString("Illegal motor specification, ignoring."));
+                               return;
+                       }
+
+                       Motor motor = motorHandler.getMotor(warnings);
+                       mount.setMotor(id, motor);
+                       mount.setMotorDelay(id, motorHandler.getDelay(warnings));
+                       return;
+               }
+
+               if (element.equals("ignitionevent")) { 
+                       MotorMount.IgnitionEvent event = null;
+                       for (MotorMount.IgnitionEvent e : MotorMount.IgnitionEvent.values()) {
+                               if (e.name().toLowerCase().replaceAll("_", "").equals(content)) {
+                                       event = e;
+                                       break;
+                               }
+                       }
+                       if (event == null) {
+                               warnings.add(Warning.fromString("Unknown ignition event type '"+content+"', ignoring."));
+                               return;
+                       }
+                       mount.setIgnitionEvent(event);
+                       return;
+               }
+
+               if (element.equals("ignitiondelay")) {
+                       double d;
+                       try {
+                               d = Double.parseDouble(content);
+                       } catch (NumberFormatException nfe) {
+                               warnings.add(Warning.fromString("Illegal ignition delay specified, ignoring."));
+                               return;
+                       }
+                       mount.setIgnitionDelay(d);
+                       return;
+               }
+               
+               if (element.equals("overhang")) {
+                       double d;
+                       try {
+                               d = Double.parseDouble(content);
+                       } catch (NumberFormatException nfe) {
+                               warnings.add(Warning.fromString("Illegal overhang specified, ignoring."));
+                               return;
+                       }
+                       mount.setMotorOverhang(d);
+                       return;
+               }
+               
+               super.closeElement(element, attributes, content, warnings);
+       }
+}
+
+
+
+
+class MotorConfigurationHandler extends ElementHandler {
+       private final Rocket rocket;
+       private String name = null;
+       private boolean inNameElement = false;
+       
+       public MotorConfigurationHandler(Rocket rocket) {
+               this.rocket = rocket;
+       }
+
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+
+               if (inNameElement || !element.equals("name")) {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+                       return null;
+               }
+               inNameElement = true;
+               
+               return PlainTextHandler.INSTANCE;
+       }
+
+       @Override
+       public void closeElement(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) {
+               name = content;
+       }
+
+       @Override
+       public void endHandler(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) throws SAXException {
+
+               String configid = attributes.remove("configid");
+               if (configid == null || configid.equals("")) {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+                       return;
+               }
+               
+               if (!rocket.addMotorConfigurationID(configid)) {
+                       warnings.add("Duplicate motor configuration ID used.");
+                       return;
+               }
+               
+               if (name != null && name.trim().length() > 0) {
+                       rocket.setMotorConfigurationName(configid, name);
+               }
+               
+               if ("true".equals(attributes.remove("default"))) {
+                       rocket.getDefaultConfiguration().setMotorConfigurationID(configid);
+               }
+               
+               super.closeElement(element, attributes, content, warnings);
+       }
+}
+
+
+class MotorHandler extends ElementHandler {
+       private Motor.Type type = null;
+       private String manufacturer = null;
+       private String designation = null;
+       private double diameter = Double.NaN;
+       private double length = Double.NaN;
+       private double delay = Double.NaN;
+       
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               return PlainTextHandler.INSTANCE;
+       }
+       
+       
+       /**
+        * Return the motor to use, or null.
+        */
+       public Motor getMotor(WarningSet warnings) {
+               if (designation == null) {
+                       warnings.add(Warning.fromString("No motor specified, ignoring."));
+                       return null;
+               }
+               Motor[] motors = Databases.findMotors(type, manufacturer, designation, diameter, length);
+               if (motors.length == 0) {
+                       String str = "No motor with designation '"+designation+"'";
+                       if (manufacturer != null)
+                               str += " for manufacturer '" + manufacturer + "'";
+                       warnings.add(Warning.fromString(str + " found."));
+                       return null;
+               }
+               if (motors.length > 1) {
+                       String str = "Multiple motors with designation '"+designation+"'";
+                       if (manufacturer != null)
+                               str += " for manufacturer '" + manufacturer + "'";
+                       warnings.add(Warning.fromString(str + " found, one chosen arbitrarily."));
+               }
+               return motors[0];
+       }
+       
+       
+       /**
+        * Return the delay to use for the motor.
+        */
+       public double getDelay(WarningSet warnings) {
+               if (Double.isNaN(delay)) {
+                       warnings.add(Warning.fromString("Motor delay not specified, assuming no ejection charge."));
+                       return Motor.PLUGGED;
+               }
+               return delay;
+       }
+       
+
+       @Override
+       public void closeElement(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) throws SAXException {
+               
+               content = content.trim();
+               
+               if (element.equals("type")) {
+                       
+                       // Motor type
+                       type = null;
+                       for (Motor.Type t: Motor.Type.values()) {
+                               if (t.name().toLowerCase().equals(content)) {
+                                       type = t;
+                                       break;
+                               }
+                       }
+                       if (type == null) {
+                               warnings.add(Warning.fromString("Unknown motor type '"+content+"', ignoring."));
+                       }
+                       
+               } else if (element.equals("manufacturer")) {
+                       
+                       // Manufacturer
+                       manufacturer = content;
+
+               } else if (element.equals("designation")) {
+                       
+                       // Designation
+                       designation = content;
+
+               } else if (element.equals("diameter")) {
+               
+                       // Diameter
+                       diameter = Double.NaN;
+                       try {
+                               diameter = Double.parseDouble(content);
+                       } catch (NumberFormatException e) {
+                               // Ignore
+                       }
+                       if (Double.isNaN(diameter)) {
+                               warnings.add(Warning.fromString("Illegal motor diameter specified, ignoring."));
+                       }
+                       
+               } else if (element.equals("length")) {
+
+                       // Length
+                       length = Double.NaN;
+                       try {
+                               length = Double.parseDouble(content);
+                       } catch (NumberFormatException ignore) { }
+                       
+                       if (Double.isNaN(length)) {
+                               warnings.add(Warning.fromString("Illegal motor diameter specified, ignoring."));
+                       }
+                       
+               } else if (element.equals("delay")) {
+                       
+                       // Delay
+                       delay = Double.NaN;
+                       if (content.equals("none")) {
+                               delay = Motor.PLUGGED;
+                       } else {
+                               try {
+                                       delay = Double.parseDouble(content);
+                               } catch (NumberFormatException ignore) { }
+                               
+                               if (Double.isNaN(delay)) {
+                                       warnings.add(Warning.fromString("Illegal motor delay specified, ignoring."));
+                               }
+                               
+                       }
+
+               } else {
+                       super.closeElement(element, attributes, content, warnings);
+               }
+       }
+       
+}
+
+
+
+class SimulationsHandler extends ElementHandler {
+       private final OpenRocketDocument doc;
+       private SingleSimulationHandler handler;
+       
+       public SimulationsHandler(OpenRocketDocument doc) {
+               this.doc = doc;
+       }
+
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               
+               if (!element.equals("simulation")) {
+                       warnings.add("Unknown element '"+element+"', ignoring.");
+                       return null;
+               }
+               
+               handler = new SingleSimulationHandler(doc);
+               return handler;
+       }
+
+       @Override
+       public void closeElement(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) throws SAXException {
+               attributes.remove("status");
+               super.closeElement(element, attributes, content, warnings);
+       }
+       
+       
+}
+
+class SingleSimulationHandler extends ElementHandler {
+
+       private final OpenRocketDocument doc;
+       
+       private String name;
+       
+       private SimulationConditionsHandler conditionHandler;
+       private FlightDataHandler dataHandler;
+       
+       private final List<String> listeners = new ArrayList<String>();
+       
+       public SingleSimulationHandler(OpenRocketDocument doc) {
+               this.doc = doc;
+       }
+       
+       
+       
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               
+               if (element.equals("name") || element.equals("simulator") || 
+                               element.equals("calculator") || element.equals("listener")) {
+                       return PlainTextHandler.INSTANCE;
+               } else if (element.equals("conditions")) {
+                       conditionHandler = new SimulationConditionsHandler(doc.getRocket());
+                       return conditionHandler;
+               } else if (element.equals("flightdata")) {
+                       dataHandler = new FlightDataHandler();
+                       return dataHandler;
+               } else {
+                       warnings.add("Unknown element '"+element+"', ignoring.");
+                       return null;
+               }
+       }
+       
+       @Override
+       public void closeElement(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) {
+               
+               if (element.equals("name")) {
+                       name = content;
+               } else if (element.equals("simulator")) {
+                       if (!content.trim().equals("RK4Simulator")) {
+                               warnings.add("Unknown simulator '" + content.trim() + "' specified, ignoring.");
+                       }
+               } else if (element.equals("calculator")) {
+                       if (!content.trim().equals("BarrowmanCalculator")) {
+                               warnings.add("Unknown calculator '" + content.trim() + "' specified, ignoring.");
+                       }
+               } else if (element.equals("listener") && content.trim().length() > 0) {
+                       listeners.add(content.trim());
+               }
+
+       }
+
+       @Override
+       public void endHandler(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) {
+
+               String s = attributes.get("status");
+               Simulation.Status status = (Status) DocumentConfig.findEnum(s, Simulation.Status.class);
+               if (status == null) {
+                       warnings.add("Simulation status unknown, assuming outdated.");
+                       status = Simulation.Status.OUTDATED;
+               }
+               
+               SimulationConditions conditions;
+               if (conditionHandler != null) {
+                       conditions = conditionHandler.getConditions();
+               } else {
+                       warnings.add("Simulation conditions not defined, using defaults.");
+                       conditions = new SimulationConditions(doc.getRocket());
+               }
+               
+               if (name == null)
+                       name = "Simulation";
+               
+               FlightData data;
+               if (dataHandler == null)
+                       data = null;
+               else
+                       data = dataHandler.getFlightData();
+
+               Simulation simulation = new Simulation(doc.getRocket(), status, name,
+                               conditions, listeners, data);
+               
+               doc.addSimulation(simulation);
+       }
+}
+
+
+
+class SimulationConditionsHandler extends ElementHandler {
+       private SimulationConditions conditions;
+       private AtmosphereHandler atmosphereHandler;
+       
+       public SimulationConditionsHandler(Rocket rocket) {
+               conditions = new SimulationConditions(rocket);
+       }
+       
+       public SimulationConditions getConditions() {
+               return conditions;
+       }
+       
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               if (element.equals("atmosphere")) {
+                       atmosphereHandler = new AtmosphereHandler(attributes.get("model"));
+                       return atmosphereHandler;
+               }
+               return PlainTextHandler.INSTANCE;
+       }       
+
+       @Override
+       public void closeElement(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) {
+               
+               double d = Double.NaN;
+               try {
+                       d = Double.parseDouble(content);
+               } catch (NumberFormatException ignore) { }
+               
+
+               if (element.equals("configid")) {
+                       if (content.equals("")) {
+                               conditions.setMotorConfigurationID(null);
+                       } else {
+                               conditions.setMotorConfigurationID(content);
+                       }
+               } else if (element.equals("launchrodlength")) {
+                       if (Double.isNaN(d)) {
+                               warnings.add("Illegal launch rod length defined, ignoring.");
+                       } else {
+                               conditions.setLaunchRodLength(d);
+                       }
+               } else if (element.equals("launchrodangle")) {
+                       if (Double.isNaN(d)) {
+                               warnings.add("Illegal launch rod angle defined, ignoring.");
+                       } else {
+                               conditions.setLaunchRodAngle(d*Math.PI/180);
+                       }
+               } else if (element.equals("launchroddirection")) {
+                       if (Double.isNaN(d)) {
+                               warnings.add("Illegal launch rod direction defined, ignoring.");
+                       } else {
+                               conditions.setLaunchRodDirection(d*Math.PI/180);
+                       }
+               } else if (element.equals("windaverage")) {
+                       if (Double.isNaN(d)) {
+                               warnings.add("Illegal average windspeed defined, ignoring.");
+                       } else {
+                               conditions.setWindSpeedAverage(d);
+                       }
+               } else if (element.equals("windturbulence")) {
+                       if (Double.isNaN(d)) {
+                               warnings.add("Illegal wind turbulence intensity defined, ignoring.");
+                       } else {
+                               conditions.setWindTurbulenceIntensity(d);
+                       }
+               } else if (element.equals("launchaltitude")) {
+                       if (Double.isNaN(d)) {
+                               warnings.add("Illegal launch altitude defined, ignoring.");
+                       } else {
+                               conditions.setLaunchAltitude(d);
+                       }
+               } else if (element.equals("launchlatitude")) {
+                       if (Double.isNaN(d)) {
+                               warnings.add("Illegal launch latitude defined, ignoring.");
+                       } else {
+                               conditions.setLaunchLatitude(d);
+                       }
+               } else if (element.equals("atmosphere")) {
+                       atmosphereHandler.storeSettings(conditions, warnings);
+               } else if (element.equals("timestep")) {
+                       if (Double.isNaN(d)) {
+                               warnings.add("Illegal time step defined, ignoring.");
+                       } else {
+                               conditions.setTimeStep(d);
+                       }
+               }
+       }
+}
+
+
+class AtmosphereHandler extends ElementHandler {
+       private final String model;
+       private double temperature = Double.NaN;
+       private double pressure = Double.NaN;
+       
+       public AtmosphereHandler(String model) {
+               this.model = model;
+       }
+       
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               return PlainTextHandler.INSTANCE;
+       }
+
+       @Override
+       public void closeElement(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) throws SAXException {
+
+               double d = Double.NaN;
+               try {
+                       d = Double.parseDouble(content);
+               } catch (NumberFormatException ignore) { }
+               
+               if (element.equals("basetemperature")) {
+                       if (Double.isNaN(d)) {
+                               warnings.add("Illegal base temperature specified, ignoring.");
+                       }
+                       temperature = d;
+               } else if (element.equals("basepressure")) {
+                       if (Double.isNaN(d)) {
+                               warnings.add("Illegal base pressure specified, ignoring.");
+                       }
+                       pressure = d;
+               } else {
+                       super.closeElement(element, attributes, content, warnings);
+               }
+       }
+
+       
+       public void storeSettings(SimulationConditions cond, WarningSet warnings) {
+               if (!Double.isNaN(pressure)) {
+                       cond.setLaunchPressure(pressure);
+               }
+               if (!Double.isNaN(temperature)) {
+                       cond.setLaunchTemperature(temperature);
+               }
+               
+               if ("isa".equals(model)) {
+                       cond.setISAAtmosphere(true);
+               } else if ("extendedisa".equals(model)){
+                       cond.setISAAtmosphere(false);
+               } else {
+                       cond.setISAAtmosphere(true);
+                       warnings.add("Unknown atmospheric model, using ISA.");
+               }
+       }
+       
+}
+
+
+class FlightDataHandler extends ElementHandler {
+       
+       private FlightDataBranchHandler dataHandler;
+       private WarningSet warningSet = new WarningSet();
+       private List<FlightDataBranch> branches = new ArrayList<FlightDataBranch>();
+
+       private FlightData data;
+       
+       public FlightData getFlightData() {
+               return data;
+       }
+       
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+
+               if (element.equals("warning")) {
+                       return PlainTextHandler.INSTANCE;
+               }
+               if (element.equals("databranch")) {
+                       if (attributes.get("name") == null || attributes.get("types")==null) {
+                               warnings.add("Illegal flight data definition, ignoring.");
+                               return null;
+                       }
+                       dataHandler =  new FlightDataBranchHandler(attributes.get("name"),
+                                       attributes.get("types"));
+                       return dataHandler;
+               }
+               
+               warnings.add("Unknown element '"+element+"' encountered, ignoring.");
+               return null;
+       }
+
+       
+       @Override
+       public void closeElement(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) {
+               
+               if (element.equals("databranch")) {
+                       FlightDataBranch branch = dataHandler.getBranch();
+                       if (branch.getLength() > 0) {
+                               branches.add(branch);
+                       }
+               } else if (element.equals("warning")) {
+                       warningSet.add(Warning.fromString(content));
+               }
+       }
+
+
+       @Override
+       public void endHandler(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) {
+
+               if (branches.size() > 0) {
+                       data = new FlightData(branches.toArray(new FlightDataBranch[0]));
+               } else {
+                       double maxAltitude = Double.NaN;
+                       double maxVelocity = Double.NaN;
+                       double maxAcceleration = Double.NaN;
+                       double maxMach = Double.NaN;
+                       double timeToApogee = Double.NaN;
+                       double flightTime = Double.NaN;
+                       double groundHitVelocity = Double.NaN;
+                       
+                       try { 
+                               maxAltitude = DocumentConfig.stringToDouble(attributes.get("maxaltitude"));
+                       } catch (NumberFormatException ignore) { }
+                       try { 
+                               maxVelocity = DocumentConfig.stringToDouble(attributes.get("maxvelocity"));
+                       } catch (NumberFormatException ignore) { }
+                       try { 
+                               maxAcceleration = DocumentConfig.stringToDouble(attributes.get("maxacceleration"));
+                       } catch (NumberFormatException ignore) { }
+                       try { 
+                               maxMach = DocumentConfig.stringToDouble(attributes.get("maxmach"));
+                       } catch (NumberFormatException ignore) { }
+                       try { 
+                               timeToApogee = DocumentConfig.stringToDouble(attributes.get("timetoapogee"));
+                       } catch (NumberFormatException ignore) { }
+                       try { 
+                               flightTime = DocumentConfig.stringToDouble(attributes.get("flighttime"));
+                       } catch (NumberFormatException ignore) { }
+                       try { 
+                               groundHitVelocity = 
+                                       DocumentConfig.stringToDouble(attributes.get("groundhitvelocity"));
+                       } catch (NumberFormatException ignore) { }
+                       
+                       data = new FlightData(maxAltitude, maxVelocity, maxAcceleration, maxMach,
+                                       timeToApogee, flightTime, groundHitVelocity);
+               }
+               
+               data.getWarningSet().addAll(warningSet);
+       }
+       
+       
+}
+
+
+class FlightDataBranchHandler extends ElementHandler {
+       private final FlightDataBranch.Type[] types;
+       private final FlightDataBranch branch;
+       
+       public FlightDataBranchHandler(String name, String typeList) {
+               String[] split = typeList.split(",");
+               types = new FlightDataBranch.Type[split.length];
+               for (int i=0; i < split.length; i++) {
+                       types[i] = FlightDataBranch.getType(split[i], UnitGroup.UNITS_NONE);
+               }
+               
+               // TODO: LOW: May throw an IllegalArgumentException
+               branch = new FlightDataBranch(name, types);
+       }
+
+       public FlightDataBranch getBranch() {
+               branch.immute();
+               return branch;
+       }
+       
+       @Override
+       public ElementHandler openElement(String element, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+
+               if (element.equals("datapoint"))
+                       return PlainTextHandler.INSTANCE;
+               if (element.equals("event"))
+                       return PlainTextHandler.INSTANCE;
+               
+               warnings.add("Unknown element '"+element+"' encountered, ignoring.");
+               return null;
+       }
+       
+
+       @Override
+       public void closeElement(String element, HashMap<String, String> attributes,
+                       String content, WarningSet warnings) {
+               
+               if (element.equals("event")) {
+                       double time;
+                       FlightEvent.Type type;
+                       
+                       try {
+                               time = DocumentConfig.stringToDouble(attributes.get("time"));
+                       } catch (NumberFormatException e) {
+                               warnings.add("Illegal event specification, ignoring.");
+                               return;
+                       }
+                       
+                       type = (Type) DocumentConfig.findEnum(attributes.get("type"), FlightEvent.Type.class);
+                       if (type == null) {
+                               warnings.add("Illegal event specification, ignoring.");
+                               return;
+                       }
+
+                       branch.addEvent(time, new FlightEvent(type, time));
+                       return;
+               }
+               
+               if (!element.equals("datapoint")) {
+                       warnings.add("Unknown element '"+element+"' encountered, ignoring.");
+                       return;
+               }
+
+               // element == "datapoint"
+               
+               
+               // Check line format
+               String[] split = content.split(",");
+               if (split.length != types.length) {
+                       warnings.add("Data point did not contain correct amount of values, ignoring point.");
+                       return;
+               }
+               
+               // Parse the doubles
+               double[] values = new double[split.length];
+               for (int i=0; i < values.length; i++) {
+                       try {
+                               values[i] = DocumentConfig.stringToDouble(split[i]);
+                       } catch (NumberFormatException e) {
+                               warnings.add("Data point format error, ignoring point.");
+                               return;
+                       }
+               }
+               
+               // Add point to branch
+               branch.addPoint();
+               for (int i=0; i < types.length; i++) {
+                       branch.setValue(types[i], values[i]);
+               }
+       }
+}
+
+
+
+
+
+
+/////////////////    Setters implementation
+
+
+////  Interface
+interface Setter {
+       /**
+        * Set the specified value to the given component.
+        * 
+        * @param component             the component to which to set.
+        * @param value                 the value within the element.
+        * @param attributes    attributes for the element.
+        * @param warnings              the warning set to use.
+        */
+       public void set(RocketComponent component, String value,
+                       HashMap<String, String> attributes, WarningSet warnings);
+}
+
+
+////  StringSetter - sets the value to the contained String
+class StringSetter implements Setter {
+       private final Reflection.Method setMethod;
+
+       public StringSetter(Reflection.Method set) {
+               setMethod = set;
+       }
+
+       public void set(RocketComponent c, String s, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               setMethod.invoke(c, s);
+       }
+}
+
+////  IntSetter - set an integer value
+class IntSetter implements Setter {
+       private final Reflection.Method setMethod;
+
+       public IntSetter(Reflection.Method set) {
+               setMethod = set;
+       }
+
+       public void set(RocketComponent c, String s, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               try {
+                       int n = Integer.parseInt(s);
+                       setMethod.invoke(c, n);
+               } catch (NumberFormatException e) {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+               }
+       }
+}
+
+
+//// BooleanSetter - set a boolean value
+class BooleanSetter implements Setter {
+       private final Reflection.Method setMethod;
+
+       public BooleanSetter(Reflection.Method set) {
+               setMethod = set;
+       }
+
+       public void set(RocketComponent c, String s, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               
+               s = s.trim();
+               if (s.equalsIgnoreCase("true")) {
+                       setMethod.invoke(c, true);
+               } else if (s.equalsIgnoreCase("false")) {
+                       setMethod.invoke(c, false);
+               } else {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+               }
+       }
+}
+
+
+
+////  DoubleSetter - sets a double value or (alternatively) if a specific string is encountered
+////  calls a setXXX(boolean) method.
+class DoubleSetter implements Setter {
+       private final Reflection.Method setMethod;
+       private final String specialString;
+       private final Reflection.Method specialMethod;
+       private final double multiplier;
+
+       /**
+        * Set only the double value.
+        * @param set   set method for the double value. 
+        */
+       public DoubleSetter(Reflection.Method set) {
+               this.setMethod = set;
+               this.specialString = null;
+               this.specialMethod = null;
+               this.multiplier = 1.0;
+       }
+
+       /**
+        * Multiply with the given multiplier and set the double value.
+        * @param set   set method for the double value.
+        * @param mul   multiplier.
+        */
+       public DoubleSetter(Reflection.Method set, double mul) {
+               this.setMethod = set;
+               this.specialString = null;
+               this.specialMethod = null;
+               this.multiplier = mul;
+       }
+
+       /**
+        * Set the double value, or if the value equals the special string, use the
+        * special setter and set it to true.
+        * 
+        * @param set                   double setter.
+        * @param special               special string
+        * @param specialMethod boolean setter.
+        */
+       public DoubleSetter(Reflection.Method set, String special,
+                       Reflection.Method specialMethod) {
+               this.setMethod = set;
+               this.specialString = special;
+               this.specialMethod = specialMethod;
+               this.multiplier = 1.0;
+       }
+
+
+       public void set(RocketComponent c, String s, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+
+               s = s.trim();
+
+               // Check for special case
+               if (specialMethod != null && s.equalsIgnoreCase(specialString)) {
+                       specialMethod.invoke(c, true);
+                       return;
+               }
+
+               // Normal case
+               try {
+                       double d = Double.parseDouble(s);
+                       setMethod.invoke(c, d * multiplier);
+               } catch (NumberFormatException e) {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+               }
+       }
+}
+
+
+class OverrideSetter implements Setter {
+       private final Reflection.Method setMethod;
+       private final Reflection.Method enabledMethod;
+
+       public OverrideSetter(Reflection.Method set, Reflection.Method enabledMethod) {
+               this.setMethod = set;
+               this.enabledMethod = enabledMethod;
+       }
+
+       public void set(RocketComponent c, String s, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+
+               try {
+                       double d = Double.parseDouble(s);
+                       setMethod.invoke(c, d);
+                       enabledMethod.invoke(c, true);
+               } catch (NumberFormatException e) {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+               }
+       }
+}
+
+////  EnumSetter  -  sets a generic enum type
+class EnumSetter<T extends Enum<T>> implements Setter {
+       private final Reflection.Method setter;
+       private final Class<T> enumClass;
+
+       public EnumSetter(Reflection.Method set, Class<T> enumClass) {
+               this.setter = set;
+               this.enumClass = enumClass;
+       }
+
+       @Override
+       public void set(RocketComponent c, String name, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+
+               Enum<?> setEnum = DocumentConfig.findEnum(name, enumClass);
+               if (setEnum == null) {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+                       return;
+               }
+
+               setter.invoke(c, setEnum);
+       }
+}
+
+
+////  ColorSetter  -  sets a Color value
+class ColorSetter implements Setter {
+       private final Reflection.Method setMethod;
+
+       public ColorSetter(Reflection.Method set) {
+               setMethod = set;
+       }
+
+       public void set(RocketComponent c, String s, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+
+               String red = attributes.get("red");
+               String green = attributes.get("green");
+               String blue = attributes.get("blue");
+
+               if (red == null || green == null || blue == null) {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+                       return;
+               }
+               
+               int r, g, b;
+               try {
+                       r = Integer.parseInt(red);
+                       g = Integer.parseInt(green);
+                       b = Integer.parseInt(blue);
+               } catch (NumberFormatException e) {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+                       return;
+               }
+               
+               if (r < 0 || g < 0 || b < 0 || r > 255 || g > 255 || b > 255) {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+                       return;
+               }
+
+               Color color = new Color(r, g, b);
+               setMethod.invoke(c, color);
+               
+               if (!s.trim().equals("")) {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+               }
+       }
+}
+
+
+
+class MaterialSetter implements Setter {
+       private final Reflection.Method setMethod;
+       private final Material.Type type;
+
+       public MaterialSetter(Reflection.Method set, Material.Type type) {
+               this.setMethod = set;
+               this.type = type;
+       }
+
+       public void set(RocketComponent c, String name, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               
+               Material mat;
+               
+               // Check name != ""
+               name = name.trim();
+               if (name.equals("")) {
+                       warnings.add(Warning.fromString("Illegal material specification, ignoring."));
+                       return;
+               }
+               
+               // Parse density
+               double density;
+               String str;
+               str = attributes.remove("density");
+               if (str == null) {
+                       warnings.add(Warning.fromString("Illegal material specification, ignoring."));
+                       return;
+               }
+               try {
+                       density = Double.parseDouble(str);
+               } catch (NumberFormatException e) {
+                       warnings.add(Warning.fromString("Illegal material specification, ignoring."));
+                       return;
+               }
+
+               // Parse thickness
+//             double thickness = 0;
+//             str = attributes.remove("thickness");
+//             try {
+//                     if (str != null)
+//                             thickness = Double.parseDouble(str);
+//             } catch (NumberFormatException e){
+//                     warnings.add(Warning.fromString("Illegal material specification, ignoring."));
+//                     return;
+//             }
+
+               // Check type if specified
+               str = attributes.remove("type");
+               if (str != null  &&  !type.name().toLowerCase().equals(str)) {
+                       warnings.add(Warning.fromString("Illegal material type specified, ignoring."));
+                       return;
+               }
+
+               mat = Databases.findMaterial(type, name, density, false);
+               
+               setMethod.invoke(c, mat);
+       }
+}
+
+
+
+
+class PositionSetter implements Setter {
+
+       public void set(RocketComponent c, String value, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               
+               RocketComponent.Position type = (Position) DocumentConfig.findEnum(attributes.get("type"), 
+                               RocketComponent.Position.class);
+               if (type == null) {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+                       return;
+               }
+               
+               double pos;
+               try {
+                       pos = Double.parseDouble(value);
+               } catch (NumberFormatException e) {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+                       return;
+               }
+               
+               if (c instanceof FinSet) {
+                       ((FinSet)c).setRelativePosition(type);
+                       c.setPositionValue(pos);
+               } else if (c instanceof LaunchLug) {
+                       ((LaunchLug)c).setRelativePosition(type);
+                       c.setPositionValue(pos);
+               } else if (c instanceof InternalComponent) {
+                       ((InternalComponent)c).setRelativePosition(type);
+                       c.setPositionValue(pos);
+               } else {
+                       warnings.add(Warning.FILE_INVALID_PARAMETER);
+               }
+               
+       }
+}
+
+
+class FinTabPositionSetter extends DoubleSetter {
+
+       public FinTabPositionSetter() {
+               super(Reflection.findMethodStatic(FinSet.class, "setTabShift", double.class));
+       }
+
+       @Override
+       public void set(RocketComponent c, String s, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               
+               if (!(c instanceof FinSet)) {
+                       throw new IllegalStateException("FinTabPositionSetter called for component " + c);
+               }
+
+               String relative = attributes.get("relativeto");
+               FinSet.TabRelativePosition position = 
+                       (TabRelativePosition) DocumentConfig.findEnum(relative,
+                                       FinSet.TabRelativePosition.class);
+               
+               if (position != null) {
+                       
+                       ((FinSet)c).setTabRelativePosition(position);
+                       
+               } else {
+                       if (relative == null) {
+                               warnings.add("Required attribute 'relativeto' not found for fin tab position.");
+                       } else {
+                               warnings.add("Illegal attribute value '" + relative + "' encountered.");
+                       }
+               }
+               
+               super.set(c, s, attributes, warnings);
+       }
+
+       
+}
+
+
+class ClusterConfigurationSetter implements Setter {
+
+       public void set(RocketComponent component, String value, HashMap<String, String> attributes,
+                       WarningSet warnings) {
+               
+               if (!(component instanceof Clusterable)) {
+                       warnings.add("Illegal component defined as cluster.");
+                       return;
+               }
+               
+               ClusterConfiguration config = null;
+               for (ClusterConfiguration c: ClusterConfiguration.CONFIGURATIONS) {
+                       if (c.getXMLName().equals(value)) {
+                               config = c;
+                               break;
+                       }
+               }
+               
+               if (config == null) {
+                       warnings.add("Illegal cluster configuration specified.");
+                       return;
+               }
+               
+               ((Clusterable)component).setClusterConfiguration(config);
+       }
+}
+
+