--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/com/go/trove/util/DelegateClassLoader.java	Sat Mar 21 11:00:06 2009 +0000
@@ -0,0 +1,121 @@
+/* ====================================================================
+ * Trove - Copyright (c) 1997-2000 Walt Disney Internet Group
+ * ====================================================================
+ * The Tea Software License, Version 1.1
+ *
+ * Copyright (c) 2000 Walt Disney Internet Group. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ *    if any, must include the following acknowledgment:
+ *       "This product includes software developed by the
+ *        Walt Disney Internet Group (http://opensource.go.com/)."
+ *    Alternately, this acknowledgment may appear in the software itself,
+ *    if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Tea", "TeaServlet", "Kettle", "Trove" and "BeanDoc" must
+ *    not be used to endorse or promote products derived from this
+ *    software without prior written permission. For written
+ *    permission, please contact opensource@dig.com.
+ *
+ * 5. Products derived from this software may not be called "Tea",
+ *    "TeaServlet", "Kettle" or "Trove", nor may "Tea", "TeaServlet",
+ *    "Kettle", "Trove" or "BeanDoc" appear in their name, without prior
+ *    written permission of the Walt Disney Internet Group.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE WALT DISNEY INTERNET GROUP OR ITS
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * For more information about Tea, please see http://opensource.go.com/.
+ */
+
+package com.go.trove.util;
+import java.io.InputStream;
+import java.net.URL;
+
+/******************************************************************************
+ * ClassLoader that delegates class loading requests if the parent ClassLoader
+ * (and its ancestors) can't fulfill the request. Class loading requests are
+ * handed off to scouts, which are called upon in sequence to find the class,
+ * until the class is found. If neither the parent or scouts can find a
+ * requested class, a normal ClassNotFoundException is thrown.
+ *
+ * @author Brian S O'Neill
+ * @version
+ * <!--$$Revision: 1.1 $-->, <!--$$JustDate:-->  7/27/01 <!-- $-->
+ */
+public class DelegateClassLoader extends ClassLoader {
+    private ClassLoader[] mScouts;
+
+    /**
+     * @param parent ClassLoader that gets first chance to load a class
+     * @param scouts ClassLoaders that get next chances to load a class, if the
+     * parent couldn't find it.
+     */
+    public DelegateClassLoader(ClassLoader parent, ClassLoader[] scouts) {
+        super(parent);
+        mScouts = (ClassLoader[])scouts.clone();
+   }
+
+    /**
+     * @param scouts ClassLoaders that get next chances to load a class, if the
+     * parent couldn't find it.
+     * @deprecated Actual parent ClassLoader must always be provided to prevent
+     * unexpected behavior.
+     */
+    public DelegateClassLoader(ClassLoader[] scouts) {
+        super();
+        mScouts = (ClassLoader[])scouts.clone();
+    }
+
+    protected synchronized Class findClass(String name)
+        throws ClassNotFoundException
+    {
+        for (int i=0; i<mScouts.length; i++) {
+            try {
+                return mScouts[i].loadClass(name);
+            }
+            catch (ClassNotFoundException e) {
+            }
+        }
+        throw new ClassNotFoundException(name);
+    }
+    
+    protected URL findResource(String name) {
+        URL resource = null;
+
+        try {
+            for (int i=0; i<mScouts.length; i++) {
+                resource = mScouts[i].getResource(name);
+                if (resource != null) {
+                    return resource;
+                }
+            }
+        }
+        catch (Exception e) {
+            e.printStackTrace();
+        }
+        return resource;
+    }
+}