1 /*
   2  * Copyright (c) 2009, 2019, 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 jdk.nio.zipfs;
  27 
  28 import java.io.IOException;
  29 import java.nio.file.attribute.GroupPrincipal;
  30 import java.nio.file.attribute.PosixFileAttributeView;
  31 import java.nio.file.attribute.PosixFileAttributes;
  32 import java.nio.file.attribute.UserPrincipal;
  33 
  34 /**
  35  * The zip file system attribute view with POSIX support.
  36  */
  37 class ZipPosixFileAttributeView extends ZipFileAttributeView implements PosixFileAttributeView {
  38     private final boolean isOwnerView;
  39 
  40     ZipPosixFileAttributeView(ZipPath path, boolean owner) {
  41         super(path, true);
  42         this.isOwnerView = owner;
  43     }
  44 
  45     @Override
  46     public String name() {
  47         return isOwnerView ? "owner" : "posix";
  48     }
  49 
  50     @Override
  51     public PosixFileAttributes readAttributes() throws IOException {
  52         return (PosixFileAttributes)path.readAttributes();
  53     }
  54 
  55     @Override
  56     public UserPrincipal getOwner() throws IOException {
  57         return readAttributes().owner();
  58     }
  59 
  60     @Override
  61     public void setOwner(UserPrincipal owner) throws IOException {
  62         path.setOwner(owner);
  63     }
  64 
  65     @Override
  66     public void setGroup(GroupPrincipal group) throws IOException {
  67         path.setGroup(group);
  68     }
  69 
  70     Object attribute(AttrID id, ZipFileAttributes zfas) {
  71         PosixFileAttributes pzfas = (PosixFileAttributes)zfas;
  72         switch (id) {
  73         case owner:
  74             return pzfas.owner();
  75         case group:
  76             return pzfas.group();
  77         case permissions:
  78             if (!isOwnerView) {
  79                 return pzfas.permissions();
  80             } else {
  81                 return super.attribute(id, zfas);
  82             }
  83         default:
  84             return super.attribute(id, zfas);
  85         }
  86     }
  87 }