6838333: New I/O: Update file system API to jsr203/nio2-b101
6844313: New I/O: File timestamps should be represented by a FileTime rather than a long+TimeUnit
Reviewed-by: sherman
/*
* 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.io.IOException;
import static sun.nio.fs.UnixNativeDispatcher.*;
import static sun.nio.fs.SolarisConstants.*;
/**
* Solaris implementation of FileStore
*/
class SolarisFileStore
extends UnixFileStore
{
private final boolean xattrEnabled;
SolarisFileStore(UnixPath file) throws IOException {
super(file);
this.xattrEnabled = xattrEnabled();
}
SolarisFileStore(UnixFileSystem fs, UnixMountEntry entry) throws IOException {
super(fs, entry);
this.xattrEnabled = xattrEnabled();
}
// returns true if extended attributes enabled
private boolean xattrEnabled() {
long res = 0L;
try {
res = pathconf(file(), _PC_XATTR_ENABLED);
} catch (UnixException x) {
// ignore
}
return (res != 0L);
}
@Override
UnixMountEntry findMountEntry() throws IOException {
// On Solaris iterate over the entries in the mount table to find device
for (UnixMountEntry entry: file().getFileSystem().getMountEntries()) {
if (entry.dev() == dev()) {
return entry;
}
}
throw new IOException("Device not found in mnttab");
}
@Override
public boolean supportsFileAttributeView(String name) {
if (name.equals("acl")) {
// lookup fstypes.properties
FeatureStatus status = checkIfFeaturePresent("nfsv4acl");
if (status == FeatureStatus.PRESENT)
return true;
if (status == FeatureStatus.NOT_PRESENT)
return false;
// AclFileAttributeView available on ZFS
return (type().equals("zfs"));
}
if (name.equals("user")) {
// lookup fstypes.properties
FeatureStatus status = checkIfFeaturePresent("xattr");
if (status == FeatureStatus.PRESENT)
return true;
if (status == FeatureStatus.NOT_PRESENT)
return false;
return xattrEnabled;
}
return super.supportsFileAttributeView(name);
}
@Override
boolean isLoopback() {
return type().equals("lofs");
}
}