committed Doug's Rocksim loader

[debian/openrocket] / src / net / sf / openrocket / file / rocksim / InnerBodyTubeHandler.java

diff --git a/src/net/sf/openrocket/file/rocksim/InnerBodyTubeHandler.java b/src/net/sf/openrocket/file/rocksim/InnerBodyTubeHandler.java
new file mode 100644 (file)
index 0000000..1c7b41c
--- /dev/null
+++ b/src/net/sf/openrocket/file/rocksim/InnerBodyTubeHandler.java
@@ -0,0 +1,110 @@
+/*
+ * InnerBodyTubeHandler.java
+ */
+package net.sf.openrocket.file.rocksim;
+
+import net.sf.openrocket.aerodynamics.WarningSet;
+import net.sf.openrocket.file.simplesax.ElementHandler;
+import net.sf.openrocket.file.simplesax.PlainTextHandler;
+import net.sf.openrocket.material.Material;
+import net.sf.openrocket.rocketcomponent.InnerTube;
+import net.sf.openrocket.rocketcomponent.RocketComponent;
+import org.xml.sax.SAXException;
+
+import java.util.HashMap;
+
+/**
+ * A SAX handler for Rocksim inside tubes.
+ */
+class InnerBodyTubeHandler extends PositionDependentHandler<InnerTube> {
+
+    /**
+     * The OpenRocket InnerTube instance.
+     */
+    private final InnerTube bodyTube;
+
+    /**
+     * Constructor.
+     *
+     * @param c the parent component
+     * @throws IllegalArgumentException thrown if <code>c</code> is null
+     */
+    public InnerBodyTubeHandler(RocketComponent c) throws IllegalArgumentException {
+        if (c == null) {
+            throw new IllegalArgumentException("The parent component of an inner tube may not be null.");
+        }
+        bodyTube = new InnerTube();
+        c.addChild(bodyTube);
+    }
+
+    @Override
+    public ElementHandler openElement(String element, HashMap<String, String> attributes, WarningSet warnings) {
+        if ("AttachedParts".equals(element)) {
+            return new AttachedPartsHandler(bodyTube);
+        }
+        return PlainTextHandler.INSTANCE;
+    }
+
+    @Override
+    public void closeElement(String element, HashMap<String, String> attributes, String content, WarningSet warnings)
+            throws SAXException {
+        super.closeElement(element, attributes, content, warnings);
+
+        try {
+            if ("OD".equals(element)) {
+                bodyTube.setOuterRadius(Double.parseDouble(content) / RocksimHandler.ROCKSIM_TO_OPENROCKET_RADIUS);
+            }
+            if ("ID".equals(element)) {
+                final double r = Double.parseDouble(content) / RocksimHandler.ROCKSIM_TO_OPENROCKET_RADIUS;
+                bodyTube.setInnerRadius(r);
+            }
+            if ("Len".equals(element)) {
+                bodyTube.setLength(Double.parseDouble(content) / RocksimHandler.ROCKSIM_TO_OPENROCKET_LENGTH);
+            }
+            if ("IsMotorMount".equals(element)) {
+                bodyTube.setMotorMount("1".equals(content));
+            }
+            if ("EngineOverhang".equals(element)) {
+                bodyTube.setMotorOverhang(Double.parseDouble(content) / RocksimHandler.ROCKSIM_TO_OPENROCKET_LENGTH);
+            }
+            if ("Material".equals(element)) {
+                setMaterialName(content);
+            }
+        }
+        catch (NumberFormatException nfe) {
+            warnings.add("Could not convert " + element + " value of " + content + ".  It is expected to be a number.");
+        }
+    }
+
+    /**
+     * Get the InnerTube component this handler is working upon.
+     * 
+     * @return an InnerTube component
+     */
+    @Override
+    public InnerTube getComponent() {
+        return bodyTube;
+    }
+
+    /**
+     * Set the relative position onto the component.  This cannot be done directly because setRelativePosition is not 
+     * public in all components.
+     * 
+     * @param position  the OpenRocket position
+     */
+    @Override
+    public void setRelativePosition(RocketComponent.Position position) {
+        bodyTube.setRelativePosition(position);
+    }
+
+    /**
+     * Get the required type of material for this component.
+     *
+     * @return BULK
+     */
+    @Override
+    public Material.Type getMaterialType() {
+        return Material.Type.BULK;
+    }
+
+}