Add Dave Cook's parts database as a git submodule, in a directory called swing/swing/resources-src/datafiles/components/

Move old rocksim-based database from .../presets to .../legacy_components
Move rocksim .csv files from .../rocksim_components to .../rocksim_src
Modify BaseComponentDTO to process units
Modify SerializePresets to take a set of directories containing .orc files
as command-line arguments, and process all of them.
Modify swing/build.xml to specify both legacy and new databases for import

core/src/net/sf/openrocket/preset/xml/BaseComponentDTO.java

@@ -228,14 +228,16 @@ public abstract class BaseComponentDTO {
 	
 	static class AnnotatedLengthDTO {
 		@XmlAttribute(name = "Unit", required = false)
-		private final String unitName = "m";
+		private final String unitName;
 		@XmlValue
 		private double length;
 		
 		AnnotatedLengthDTO() {
+			this.unitName = "m";
 		}
 		
 		AnnotatedLengthDTO(double length) {
+			this.unitName = "m";
 			this.length = length;
 		}
 		
@@ -246,14 +248,16 @@ public abstract class BaseComponentDTO {
 	
 	static class AnnotatedMassDTO {
 		@XmlAttribute(name = "Unit", required = false)
-		private final String unitName = "kg";
+		private final String unitName;
 		@XmlValue
 		private double mass;
 		
 		AnnotatedMassDTO() {
+			unitName = "kg";
 		}
 		
 		AnnotatedMassDTO(double mass) {
+			unitName = "kg";
 			this.mass = mass;
 		}
 		

swing/build.xml

@@ -125,11 +125,13 @@
 	</target>
 	
 	<target name="serialize-presets" depends="build" description="Preprocess the orc preset files into serialized form">
-	    <java classname="net.sf.openrocket.utils.SerializePresets"
-	          fork="true"
-			  classpathref="run-classpath"
-			  failonerror="true">
-	    </java>
+	  <java classname="net.sf.openrocket.utils.SerializePresets"
+	        fork="true"
+		classpathref="run-classpath"
+		failonerror="true">
+	    <arg value="resources-src/datafiles/legacy_components"/>
+	    <arg value="resources-src/datafiles/components/orc"/>
+	  </java>
 	</target>
 
 	<!-- CONVERT vendor csv to ORC files -->
@@ -138,7 +140,7 @@
 		<attribute name="vendor"/>
 		<sequential>
 			<echo>Generating ORC file for vendor @{vendor}</echo>
-			<java classname="net.sf.openrocket.preset.loader.RocksimComponentFileTranslator"
+			<java classname="net.sf.openrocket.utils.RocksimComponentFileTranslator"
 				fork="true"
 				classpathref="run-classpath"
 				failonerror="true">

swing/src/net/sf/openrocket/utils/SerializePresets.java

@@ -17,6 +17,11 @@ import net.sf.openrocket.preset.xml.OpenRocketComponentLoader;
 import net.sf.openrocket.util.Pair;
 
 public class SerializePresets extends BasicApplication {
+
+    private static void printUsage() {
+        System.err.println("SerializePresets <dir> ... ");
+        System.err.println("<dir> (may be repeated) is base directory for a set of .orc preset files");
+    }
 	
 	/**
 	 * @param args
@@ -26,25 +31,36 @@ public class SerializePresets extends BasicApplication {
 		SerializePresets app = new SerializePresets();
 		app.initializeApplication();
 		
+		if (args.length < 1) {
+			printUsage();
+            throw new IllegalArgumentException("Invalid Command Line Params");
+        }
+		
 		Locale.setDefault(Locale.ENGLISH);
 		
 		ComponentPresetDatabase componentPresetDao = new ComponentPresetDatabase();
-		
-		FileIterator iterator = DirectoryIterator.findDirectory("resources-src/datafiles/presets", new SimpleFileFilter("", false, "orc"));
-		
-		if (iterator == null) {
-			throw new RuntimeException("Can't find resources-src/presets directory");
-		}
-		while (iterator.hasNext()) {
-			Pair<String, InputStream> f = iterator.next();
-			String fileName = f.getU();
-			InputStream is = f.getV();
+
+		for (int i = 0; i < args.length; i++) {
+
+			System.err.println("Processing .orc files in directory " + args[i]);
 			
-			OpenRocketComponentLoader loader = new OpenRocketComponentLoader();
-			Collection<ComponentPreset> presets = loader.load(is, fileName);
-			
-			componentPresetDao.addAll(presets);
+			FileIterator iterator = DirectoryIterator.findDirectory(args[i], new SimpleFileFilter("", false, "orc"));
+			if (iterator == null) {
+				throw new RuntimeException("Can't find " + args[i] + " directory");
+			}
 			
+			while (iterator.hasNext()) {
+				Pair<String, InputStream> f = iterator.next();
+				String fileName = f.getU();
+				InputStream is = f.getV();
+				
+				OpenRocketComponentLoader loader = new OpenRocketComponentLoader();
+				Collection<ComponentPreset> presets = loader.load(is, fileName);
+				
+				componentPresetDao.addAll(presets);
+				
+			}
+
 		}
 		
 		List<ComponentPreset> list = componentPresetDao.listAll();