Java FileStore createTempFileWithAttributes(Path tempFilePath, File fileName)

Here you can find the source of createTempFileWithAttributes(Path tempFilePath, File fileName)

Description

create Temp File With Attributes

License

Open Source License

Declaration

static Path createTempFileWithAttributes(Path tempFilePath, File fileName) throws IOException 

Method Source Code

//package com.java2s;
/*/*from   w w w. j  a  va  2  s.c  om*/
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

import java.io.File;
import java.io.IOException;

import java.nio.file.Files;
import java.nio.file.Path;

import java.nio.file.attribute.AclEntry;
import java.nio.file.attribute.AclFileAttributeView;
import java.nio.file.attribute.FileAttribute;
import java.nio.file.attribute.PosixFileAttributeView;
import java.nio.file.attribute.PosixFilePermission;
import java.nio.file.attribute.PosixFilePermissions;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;

public class Main {
    static Path createTempFileWithAttributes(Path tempFilePath, File fileName) throws IOException {
        Path exisitingFilePath = fileName.toPath();
        List<FileAttribute> attributes = new ArrayList<>(2);
        attributes.addAll(getPosixAttributes(exisitingFilePath));
        attributes.addAll(getAclAttributes(exisitingFilePath));
        if (!attributes.isEmpty()) {
            try {
                return Files.createFile(tempFilePath, attributes.toArray(new FileAttribute<?>[attributes.size()]));
            } catch (UnsupportedOperationException ex) {
            }
        }
        return Files.createFile(tempFilePath);
    }

    private static List<FileAttribute<Set<PosixFilePermission>>> getPosixAttributes(Path file) throws IOException {
        if (Files.exists(file)
                && Files.getFileStore(file).supportsFileAttributeView(PosixFileAttributeView.class)) {
            PosixFileAttributeView posixView = Files.getFileAttributeView(file, PosixFileAttributeView.class);
            if (posixView != null) {
                return Collections.singletonList(
                        PosixFilePermissions.asFileAttribute(posixView.readAttributes().permissions()));
            }
        }
        return Collections.emptyList();
    }

    private static List<FileAttribute<List<AclEntry>>> getAclAttributes(Path file) throws IOException {
        if (Files.exists(file) && Files.getFileStore(file).supportsFileAttributeView(AclFileAttributeView.class)) {
            AclFileAttributeView aclView = Files.getFileAttributeView(file, AclFileAttributeView.class);
            if (aclView != null) {
                final List<AclEntry> entries = aclView.getAcl();
                return Collections.singletonList(new FileAttribute<List<AclEntry>>() {

                    @Override
                    public List<AclEntry> value() {
                        return entries;
                    }

                    @Override
                    public String name() {
                        return "acl:acl";
                    }

                });
            }
        }
        return Collections.emptyList();
    }
}

Related

  1. canExecuteExecutable(File file)
  2. diskFree()
  3. ensureExists(Path folder)
  4. findTopResourceInVolume(FileStore fstore, Path path)
  5. getAclAttributes(Path file)