/* * Copyright (c) 2008, 2011, Oracle and/or its affiliates. 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.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.nio.fs; import java.nio.file.attribute.*;import java.util.*;import java.io.IOException; /** * Base implementation of AclFileAttributeView */ abstract class AbstractAclFileAttributeView    implements AclFileAttributeView, DynamicFileAttributeView{    private static final String OWNER_NAME = "owner";    private static final String ACL_NAME = "acl";     @Override    public final String name() {        return "acl";    }     @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 IllegalArgumentException("'" + name() + ":" +            attribute + "' not recognized");    }     @Override    public final Map<String,Object> readAttributes(String[] attributes)        throws IOException    {        boolean acl = false;        boolean owner = false;        for (String attribute: attributes) {            if (attribute.equals("*")) {                owner = true;                acl = true;                continue;            }            if (attribute.equals(ACL_NAME)) {                acl = true;                continue;            }            if (attribute.equals(OWNER_NAME)) {                owner = true;                continue;            }            throw new IllegalArgumentException("'" + name() + ":" +                attribute + "' not recognized");        }        Map<String,Object> result = new HashMap<>(2);        if (acl)            result.put(ACL_NAME, getAcl());        if (owner)            result.put(OWNER_NAME, getOwner());        return Collections.unmodifiableMap(result);    }}