106 lines
3.4 KiB
Java
106 lines
3.4 KiB
Java
/*
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* Copyright (c) 2008, 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.nio.fs;
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import java.nio.file.attribute.*;
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import java.util.*;
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import java.io.IOException;
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/**
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* An implementation of FileOwnerAttributeView that delegates to a given
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* PosixFileAttributeView or AclFileAttributeView object.
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*/
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final class FileOwnerAttributeViewImpl
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implements FileOwnerAttributeView, DynamicFileAttributeView
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{
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private static final String OWNER_NAME = "owner";
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private final FileAttributeView view;
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private final boolean isPosixView;
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FileOwnerAttributeViewImpl(PosixFileAttributeView view) {
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this.view = view;
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this.isPosixView = true;
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}
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FileOwnerAttributeViewImpl(AclFileAttributeView view) {
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this.view = view;
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this.isPosixView = false;
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}
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@Override
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public String name() {
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return "owner";
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}
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@Override
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public void setAttribute(String attribute, Object value)
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throws IOException
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{
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if (attribute.equals(OWNER_NAME)) {
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setOwner((UserPrincipal)value);
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} else {
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throw new IllegalArgumentException("'" + name() + ":" +
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attribute + "' not recognized");
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}
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}
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@Override
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public Map<String,Object> readAttributes(String[] attributes) throws IOException {
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Map<String,Object> result = new HashMap<>();
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for (String attribute: attributes) {
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if (attribute.equals("*") || attribute.equals(OWNER_NAME)) {
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result.put(OWNER_NAME, getOwner());
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} else {
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throw new IllegalArgumentException("'" + name() + ":" +
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attribute + "' not recognized");
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}
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}
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return result;
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}
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@Override
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public UserPrincipal getOwner() throws IOException {
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if (isPosixView) {
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return ((PosixFileAttributeView)view).readAttributes().owner();
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} else {
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return ((AclFileAttributeView)view).getOwner();
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}
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}
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@Override
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public void setOwner(UserPrincipal owner)
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throws IOException
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{
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if (isPosixView) {
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((PosixFileAttributeView)view).setOwner(owner);
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} else {
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((AclFileAttributeView)view).setOwner(owner);
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}
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}
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}
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