rebuilding head

[mir.git] / source / mir / bundle / CascadingBundleFactory.java

diff --git a/source/mir/bundle/CascadingBundleFactory.java b/source/mir/bundle/CascadingBundleFactory.java
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+++ b/source/mir/bundle/CascadingBundleFactory.java
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+/*
+ * Copyright (C) 2001, 2002 The Mir-coders group
+ *
+ * This file is part of Mir.
+ *
+ * Mir is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Mir is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Mir; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * In addition, as a special exception, The Mir-coders gives permission to link
+ * the code of this program with  any library licensed under the Apache Software License,
+ * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
+ * (or with modified versions of the above that use the same license as the above),
+ * and distribute linked combinations including the two.  You must obey the
+ * GNU General Public License in all respects for all of the code used other than
+ * the above mentioned libraries.  If you modify this file, you may extend this
+ * exception to your version of the file, but you are not obligated to do so.
+ * If you do not wish to do so, delete this exception statement from your version.
+ */
+package mir.bundle;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class CascadingBundleFactory implements BundleFactory {
+  private BundleFactory masterFactory;
+
+  /** {@inheritDoc} */
+  public CascadingBundleFactory(BundleFactory aMasterFactory) {
+    masterFactory = aMasterFactory;
+  }
+
+  /** {@inheritDoc} */
+  public Bundle getBundle(final String aDirectory, final String[] aParameters) {
+    return
+      new Bundle() {
+        public String getValue(String aKey, List anArguments) {
+          String result = masterFactory.getBundle(aDirectory, aParameters).getValue(aKey, anArguments);
+
+          if (aParameters.length>0 && result==null) {
+            List parameters = new ArrayList(Arrays.asList(aParameters));
+
+            while (result==null && parameters.size()>0) {
+              parameters.remove(parameters.size()-1);
+              result = masterFactory.getBundle(
+                  aDirectory, (String[]) parameters.toArray(new String[0])).getValue(aKey, anArguments);
+            }
+          }
+
+          return result;
+        }
+      };
+  }
+
+  /** {@inheritDoc} */
+  public void reload() {
+    masterFactory.reload();
+  }
+}