+package net.sf.openrocket.preset.loader;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+
+import net.sf.openrocket.material.Material;
+import net.sf.openrocket.unit.UnitGroup;
+
+public class MaterialHolder {
+
+ private final Map<String,Material.Bulk> bulkMaterials = new HashMap<String,Material.Bulk>();
+
+ private final Map<String,Material.Surface> surfaceMaterials = new HashMap<String,Material.Surface>();
+
+ private final Map<String, Material.Line> lineMaterials = new HashMap<String,Material.Line>();
+
+ public void put( Material material ) {
+ switch ( material.getType() ) {
+ case BULK:
+ bulkMaterials.put(material.getName(), (Material.Bulk) material);
+ break;
+ case SURFACE:
+ surfaceMaterials.put(material.getName(), (Material.Surface) material);
+ break;
+ case LINE:
+ lineMaterials.put(material.getName(), (Material.Line) material);
+ break;
+ }
+ }
+
+ public Material.Bulk getBulkMaterial( Material.Bulk material ) {
+ Material.Bulk m = bulkMaterials.get( material.getName() );
+ return (m==null) ? material : m;
+ }
+
+ public Material.Surface getSurfaceMaterial( Material.Surface material, Double thickness ) {
+ Material.Surface m = surfaceMaterials.get(material.getName() );
+ if ( m != null ) {
+ return m;
+ }
+ // Try to see if we can convert a bulk material.
+ if ( thickness == null ) {
+ // if we have no thickness, there is nothing we can do
+ return material;
+ }
+ String thicknessName = UnitGroup.UNITS_LENGTH.getUnit("mm").toString(thickness);
+ String convertedMaterialName = material.getName() + "(" + thicknessName + ")";
+ m = surfaceMaterials.get(convertedMaterialName);
+ if ( m != null ) {
+ return m;
+ }
+ Material.Bulk bulk = bulkMaterials.get(material.getName() );
+
+ if ( bulk == null ) {
+ return material;
+ }
+
+ // Ok, now we have a thickness and a bulk material of the correct name,
+ // we can make our own surface material.
+
+ Material.Surface surface = new Material.Surface( convertedMaterialName, bulk.getDensity() * thickness , true);
+
+ this.put(surface);
+
+ return surface;
+
+ }
+
+ public Material.Line getLineMaterial( Material.Line material ) {
+ Material.Line m = lineMaterials.get( material.getName() );
+ return (m==null) ? material : m;
+ }
+
+ public int size() {
+ return bulkMaterials.size() + surfaceMaterials.size() + lineMaterials.size();
+ }
+
+ public Collection<Material> values() {
+
+ HashSet<Material> allMats = new HashSet<Material>();
+ allMats.addAll( bulkMaterials.values() );
+ allMats.addAll( surfaceMaterials.values() );
+ allMats.addAll( lineMaterials.values() );
+
+ return allMats;
+
+ }
+}