/*
* Copyright 2012 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.gradle.internal.nativeintegration.filesystem.jdk7;
import java.nio.file.attribute.PosixFilePermission;
import java.util.EnumSet;
import java.util.Set;
import static java.nio.file.attribute.PosixFilePermission.*;
public class PosixFilePermissionConverter {
static Set<PosixFilePermission> convertToPermissionsSet(int mode) {
Set<PosixFilePermission> result = EnumSet.noneOf(PosixFilePermission.class);
if (isSet(mode, 0400)) {
result.add(OWNER_READ);
}
if (isSet(mode, 0200)) {
result.add(OWNER_WRITE);
}
if (isSet(mode, 0100)) {
result.add(OWNER_EXECUTE);
}
if (isSet(mode, 040)) {
result.add(GROUP_READ);
}
if (isSet(mode, 020)) {
result.add(GROUP_WRITE);
}
if (isSet(mode, 010)) {
result.add(GROUP_EXECUTE);
}
if (isSet(mode, 04)) {
result.add(OTHERS_READ);
}
if (isSet(mode, 02)) {
result.add(OTHERS_WRITE);
}
if (isSet(mode, 01)) {
result.add(OTHERS_EXECUTE);
}
return result;
}
private static boolean isSet(int mode, int testbit) {
return (mode & testbit) == testbit;
}
public static int convertToInt(Set<PosixFilePermission> permissions) {
int result = 0;
if (permissions.contains(OWNER_READ)) {
result = result | 0400;
}
if (permissions.contains(OWNER_WRITE)) {
result = result | 0200;
}
if (permissions.contains(OWNER_EXECUTE)) {
result = result | 0100;
}
if (permissions.contains(GROUP_READ)) {
result = result | 040;
}
if (permissions.contains(GROUP_WRITE)) {
result = result | 020;
}
if (permissions.contains(GROUP_EXECUTE)) {
result = result | 010;
}
if (permissions.contains(OTHERS_READ)) {
result = result | 04;
}
if (permissions.contains(OTHERS_WRITE)) {
result = result | 02;
}
if (permissions.contains(OTHERS_EXECUTE)) {
result = result | 01;
}
return result;
}
}