committed Doug's Rocksim loader

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

diff --git a/src/net/sf/openrocket/file/rocksim/RocksimLoader.java b/src/net/sf/openrocket/file/rocksim/RocksimLoader.java
new file mode 100644 (file)
index 0000000..7095341
--- /dev/null
+++ b/src/net/sf/openrocket/file/rocksim/RocksimLoader.java
@@ -0,0 +1,57 @@
+/*
+ * RocksimLoader.java
+ */
+package net.sf.openrocket.file.rocksim;
+
+import net.sf.openrocket.file.RocketLoader;
+import net.sf.openrocket.file.RocketLoadException;
+import net.sf.openrocket.file.simplesax.SimpleSAX;
+import net.sf.openrocket.document.OpenRocketDocument;
+
+import java.io.InputStream;
+import java.io.IOException;
+
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+/**
+ * This class is the main entry point for Rocksim design file imported to OpenRocket.  Currently only Rocksim v9
+ * file formats are supported, although it is possible that v8 formats will work for most components.
+ * 
+ * In the cases of v9 components that exist in Rocksim but have no corollary in OpenRocket a message is added to
+ * a warning set and presented to the user.  In effect, this loading is a 'best-effort' mapping and is not meant to
+ * be an exact representation of any possible Rocksim design in an OpenRocket format.
+ * 
+ * Rocksim simulations are not imported.
+ * 
+ * Wish List:
+ *       Material interface (or at least make them abstract in RocketComponent)
+ *          setMaterial
+ *          getMaterial
+ */
+public class RocksimLoader extends RocketLoader {
+    /**
+     * This method is called by the default implementations of {@link #load(java.io.File)}
+     * and {@link #load(java.io.InputStream)} to load the rocket.
+     *
+     * @throws net.sf.openrocket.file.RocketLoadException
+     *          if an error occurs during loading.
+     */
+    @Override 
+    protected OpenRocketDocument loadFromStream(InputStream source) throws IOException, RocketLoadException {
+
+        InputSource xmlSource = new InputSource(source);
+
+        RocksimHandler handler = new RocksimHandler();
+               
+        try {
+            SimpleSAX.readXML(xmlSource, handler, warnings);
+        } catch (SAXException e) {
+            throw new RocketLoadException("Malformed XML in input.", e);
+        }
+
+        final OpenRocketDocument document = handler.getDocument();
+        document.setFile(null);
+        return document;
+    }
+}