1 /*
   2  * Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package sun.nio.fs;
  27 
  28 import java.nio.file.attribute.*;
  29 import java.util.*;
  30 import java.io.IOException;
  31 
  32 /**
  33  * Base implementation of AclFileAttributeView
  34  */
  35 
  36 abstract class AbstractAclFileAttributeView
  37     implements AclFileAttributeView, DynamicFileAttributeView
  38 {
  39     private static final String OWNER_NAME = "owner";
  40     private static final String ACL_NAME = "acl";
  41 
  42     @Override
  43     public final String name() {
  44         return "acl";
  45     }
  46 
  47     @Override
  48     @SuppressWarnings("unchecked")
  49     public final void setAttribute(String attribute, Object value)
  50         throws IOException
  51     {
  52         if (attribute.equals(OWNER_NAME)) {
  53             setOwner((UserPrincipal)value);
  54             return;
  55         }
  56         if (attribute.equals(ACL_NAME)) {
  57             setAcl((List<AclEntry>)value);
  58             return;
  59         }
  60         throw new IllegalArgumentException("'" + name() + ":" +
  61             attribute + "' not recognized");
  62     }
  63 
  64     @Override
  65     public final Map<String,Object> readAttributes(String[] attributes)
  66         throws IOException
  67     {
  68         boolean acl = false;
  69         boolean owner = false;
  70         for (String attribute: attributes) {
  71             if (attribute.equals("*")) {
  72                 owner = true;
  73                 acl = true;
  74                 continue;
  75             }
  76             if (attribute.equals(ACL_NAME)) {
  77                 acl = true;
  78                 continue;
  79             }
  80             if (attribute.equals(OWNER_NAME)) {
  81                 owner = true;
  82                 continue;
  83             }
  84             throw new IllegalArgumentException("'" + name() + ":" +
  85                 attribute + "' not recognized");
  86         }
  87         Map<String,Object> result = new HashMap<>(2);
  88         if (acl)
  89             result.put(ACL_NAME, getAcl());
  90         if (owner)
  91             result.put(OWNER_NAME, getOwner());
  92         return Collections.unmodifiableMap(result);
  93     }
  94 }