1 files changed, 126 insertions, 0 deletions
diff --git a/source/com/c2kernel/utils/CastorXMLUtility.java b/source/com/c2kernel/utils/CastorXMLUtility.java
new file mode 100755
index 0000000..3f23d53
--- /dev/null
+++ b/source/com/c2kernel/utils/CastorXMLUtility.java
@@ -0,0 +1,126 @@
+package com.c2kernel.utils;
+
+//Java
+import java.io.IOException;
+import java.io.StringReader;
+import java.io.StringWriter;
+import java.net.URL;
+import java.util.HashSet;
+import java.util.StringTokenizer;
+
+import org.exolab.castor.mapping.Mapping;
+import org.exolab.castor.mapping.MappingException;
+import org.exolab.castor.xml.MarshalException;
+import org.exolab.castor.xml.Marshaller;
+import org.exolab.castor.xml.Unmarshaller;
+import org.exolab.castor.xml.ValidationException;
+
+import com.c2kernel.common.InvalidDataException;
+import com.c2kernel.persistency.outcome.Outcome;
+
+
+/**************************************************************************
+ * Loads all mapfiles, and wraps marshalling/unmarshalling
+ * 
+ * @author $Author: abranson $ $Date: 2004/10/20 14:10:21 $
+ * @version $Revision: 1.12 $
+ **************************************************************************/
+public class CastorXMLUtility
+{
+    private static Mapping mMapping     = new Mapping();
+    private static HashSet mMappingKeys = new HashSet();
+
+    /**
+     * Looks for a file called 'index.xml' at the given URL, and loads every file
+     * listed in there by relative path
+     * 
+     * @param mapURL - map root
+     */
+    static public void loadMapsFrom(URL mapURL) throws InvalidDataException {
+        // load index.xml
+        Logger.msg(3, "Loading maps from "+mapURL);
+        String index;
+        try {
+            index = FileStringUtility.url2String( new URL(mapURL, "index.xml") );
+        } catch (Exception e) {
+            Logger.warning("Could not load map index from "+mapURL.toString());
+            return;
+        }
+        
+        StringTokenizer sTokenizer = new StringTokenizer(index);
+        while( sTokenizer.hasMoreTokens() ) {
+            String thisMap = sTokenizer.nextToken();
+            try {
+                addMapping( new URL(mapURL, thisMap));
+            } catch (Exception e) {
+                Logger.error(e);
+                throw new InvalidDataException("Error loading map '"+thisMap+"'", "");
+            } 
+        }
+        Logger.msg("Loaded all maps from "+mapURL.toString());
+    }
+    
+   /**************************************************************************
+    * Updates a mapping referenced by the mapID.
+    * The same mapping cannot be loaded many times as it generates an exception.
+    * That is the reason for this method as it maintains the HashSet of MappingKeys.
+    **************************************************************************/
+    static public void addMapping( URL mapID )
+        throws IOException,
+               MappingException,
+               MarshalException,
+               ValidationException
+    {
+
+        if( !mMappingKeys.contains(mapID) )
+        {
+            Logger.msg(7, "Added mapping file:"+mapID);
+
+            mMapping.loadMapping( mapID );
+            mMappingKeys.add( mapID );
+        }
+        else
+        {
+            Logger.msg("Map file already loaded:"+mapID);
+        }
+    }
+
+   /**************************************************************************
+    * Marshalls a mapped object to string. The mapping must be loaded before.
+    * See updateMapping().
+    **************************************************************************/
+    static public String marshall( Object obj )
+        throws IOException,
+               MappingException,
+               MarshalException,
+               ValidationException
+    {
+        if (obj == null) return "<NULL/>";
+        if (obj instanceof Outcome)
+            return ((Outcome)obj).getData();
+        StringWriter sWriter    = new StringWriter();
+        Marshaller   marshaller = new Marshaller( sWriter );
+
+        marshaller.setMapping( mMapping );
+        marshaller.setMarshalAsDocument( false );
+        marshaller.marshal( obj );
+
+        return sWriter.toString();
+    }
+
+   /**************************************************************************
+    * Unmarshalls a mapped object from string. The mapping must be loaded before.
+    * See updateMapping().
+    **************************************************************************/
+    static public Object unmarshall( String data )
+        throws IOException,
+               MappingException,
+               MarshalException,
+               ValidationException
+    {
+        StringReader sReader      = new StringReader( data );
+        Unmarshaller unmarshaller = new Unmarshaller( mMapping );
+        if (data.equals("<NULL/>")) return null;
+        return unmarshaller.unmarshal( sReader );
+    }
+}