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1 /* |
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2 * Copyright 2008-2009 Sun Microsystems, Inc. All Rights Reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Sun designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Sun in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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22 * CA 95054 USA or visit www.sun.com if you need additional information or |
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23 * have any questions. |
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24 */ |
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25 |
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26 package sun.nio.fs; |
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27 |
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28 import java.nio.file.attribute.*; |
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29 import java.util.*; |
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30 |
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31 class UnixFileModeAttribute { |
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32 static final int ALL_PERMISSIONS = |
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33 UnixConstants.S_IRUSR | UnixConstants.S_IWUSR | UnixConstants.S_IXUSR | |
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34 UnixConstants.S_IRGRP | UnixConstants.S_IWGRP | UnixConstants.S_IXGRP | |
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35 UnixConstants.S_IROTH | UnixConstants.S_IWOTH | UnixConstants. S_IXOTH; |
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36 |
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37 static final int ALL_READWRITE = |
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38 UnixConstants.S_IRUSR | UnixConstants.S_IWUSR | |
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39 UnixConstants.S_IRGRP | UnixConstants.S_IWGRP | |
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40 UnixConstants.S_IROTH | UnixConstants.S_IWOTH; |
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41 |
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42 static final int TEMPFILE_PERMISSIONS = |
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43 UnixConstants.S_IRUSR | UnixConstants.S_IWUSR | UnixConstants.S_IXUSR; |
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44 |
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45 private Set<PosixFilePermission> perms; |
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46 |
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47 UnixFileModeAttribute() { |
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48 perms = Collections.emptySet(); |
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49 } |
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50 |
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51 static int toUnixMode(Set<PosixFilePermission> perms) { |
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52 int mode = 0; |
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53 for (PosixFilePermission perm: perms) { |
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54 if (perm == null) |
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55 throw new NullPointerException(); |
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56 switch (perm) { |
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57 case OWNER_READ : mode |= UnixConstants.S_IRUSR; break; |
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58 case OWNER_WRITE : mode |= UnixConstants.S_IWUSR; break; |
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59 case OWNER_EXECUTE : mode |= UnixConstants.S_IXUSR; break; |
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60 case GROUP_READ : mode |= UnixConstants.S_IRGRP; break; |
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61 case GROUP_WRITE : mode |= UnixConstants.S_IWGRP; break; |
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62 case GROUP_EXECUTE : mode |= UnixConstants.S_IXGRP; break; |
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63 case OTHERS_READ : mode |= UnixConstants.S_IROTH; break; |
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64 case OTHERS_WRITE : mode |= UnixConstants.S_IWOTH; break; |
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65 case OTHERS_EXECUTE : mode |= UnixConstants.S_IXOTH; break; |
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66 } |
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67 } |
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68 return mode; |
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69 } |
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70 |
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71 @SuppressWarnings("unchecked") |
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72 static int toUnixMode(int defaultMode, FileAttribute<?>... attrs) { |
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73 int mode = defaultMode; |
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74 for (FileAttribute<?> attr: attrs) { |
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75 String name = attr.name(); |
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76 if (!name.equals("posix:permissions") && !name.equals("unix:permissions")) { |
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77 throw new UnsupportedOperationException("'" + attr.name() + |
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78 "' not supported as initial attribute"); |
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79 } |
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80 mode = toUnixMode((Set<PosixFilePermission>)attr.value()); |
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81 } |
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82 return mode; |
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83 } |
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84 } |