--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/nio/fs/AbstractAclFileAttributeView.java	Sun Feb 15 12:25:54 2009 +0000
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2008-2009 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.nio.fs;
+
+import java.nio.file.attribute.*;
+import java.io.IOException;
+import java.util.*;
+
+/**
+ * Base implementation of AclFileAttributeView
+ */
+
+abstract class AbstractAclFileAttributeView
+    implements AclFileAttributeView
+{
+    private static final String OWNER_NAME = "owner";
+    private static final String ACL_NAME = "acl";
+
+    @Override
+    public final String name() {
+        return "acl";
+    }
+
+    @Override
+    public final Object getAttribute(String attribute) throws IOException {
+        if (attribute.equals(OWNER_NAME))
+            return getOwner();
+        if (attribute.equals(ACL_NAME))
+            return getAcl();
+        return null;
+    }
+
+    @Override
+    @SuppressWarnings("unchecked")
+    public final void setAttribute(String attribute, Object value)
+        throws IOException
+    {
+        if (attribute.equals(OWNER_NAME)) {
+            setOwner((UserPrincipal)value);
+            return;
+        }
+        if (attribute.equals(ACL_NAME)) {
+            setAcl((List<AclEntry>)value);
+            return;
+        }
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public final Map<String,?> readAttributes(String first, String[] rest)
+        throws IOException
+    {
+        boolean acl = false;
+        boolean owner = false;
+
+        if (first.equals(ACL_NAME)) acl = true;
+        else if (first.equals(OWNER_NAME)) owner = true;
+        else if (first.equals("*")) {
+            owner = true;
+            acl = true;
+        }
+
+        if (!acl || !owner) {
+            for (String attribute: rest) {
+                if (attribute.equals("*")) {
+                    owner = true;
+                    acl = true;
+                    break;
+                }
+                if (attribute.equals(ACL_NAME)) {
+                    acl = true;
+                    continue;
+                }
+                if (attribute.equals(OWNER_NAME)) {
+                    owner = true;
+                    continue;
+                }
+            }
+        }
+        Map<String,Object> result = new HashMap<String,Object>(2);
+        if (acl)
+            result.put(ACL_NAME, getAcl());
+        if (owner)
+            result.put(OWNER_NAME, getOwner());
+        return Collections.unmodifiableMap(result);
+    }
+}