jdk/src/solaris/classes/sun/nio/fs/UnixFileModeAttribute.java
changeset 2057 3acf8e5e2ca0
child 3065 452aaa2899fc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/solaris/classes/sun/nio/fs/UnixFileModeAttribute.java	Sun Feb 15 12:25:54 2009 +0000
@@ -0,0 +1,84 @@
+/*
+ * 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.nio.file.attribute.*;
+import java.util.*;
+
+class UnixFileModeAttribute {
+    static final int ALL_PERMISSIONS =
+        UnixConstants.S_IRUSR | UnixConstants.S_IWUSR | UnixConstants.S_IXUSR |
+        UnixConstants.S_IRGRP | UnixConstants.S_IWGRP | UnixConstants.S_IXGRP |
+        UnixConstants.S_IROTH | UnixConstants.S_IWOTH | UnixConstants. S_IXOTH;
+
+    static final int ALL_READWRITE =
+        UnixConstants.S_IRUSR | UnixConstants.S_IWUSR |
+        UnixConstants.S_IRGRP | UnixConstants.S_IWGRP |
+        UnixConstants.S_IROTH | UnixConstants.S_IWOTH;
+
+    static final int TEMPFILE_PERMISSIONS =
+        UnixConstants.S_IRUSR | UnixConstants.S_IWUSR | UnixConstants.S_IXUSR;
+
+    private Set<PosixFilePermission> perms;
+
+    UnixFileModeAttribute() {
+        perms = Collections.emptySet();
+    }
+
+    static int toUnixMode(Set<PosixFilePermission> perms) {
+        int mode = 0;
+        for (PosixFilePermission perm: perms) {
+            if (perm == null)
+                throw new NullPointerException();
+            switch (perm) {
+                case OWNER_READ :     mode |= UnixConstants.S_IRUSR; break;
+                case OWNER_WRITE :    mode |= UnixConstants.S_IWUSR; break;
+                case OWNER_EXECUTE :  mode |= UnixConstants.S_IXUSR; break;
+                case GROUP_READ :     mode |= UnixConstants.S_IRGRP; break;
+                case GROUP_WRITE :    mode |= UnixConstants.S_IWGRP; break;
+                case GROUP_EXECUTE :  mode |= UnixConstants.S_IXGRP; break;
+                case OTHERS_READ :    mode |= UnixConstants.S_IROTH; break;
+                case OTHERS_WRITE :   mode |= UnixConstants.S_IWOTH; break;
+                case OTHERS_EXECUTE : mode |= UnixConstants.S_IXOTH; break;
+            }
+        }
+        return mode;
+    }
+
+    @SuppressWarnings("unchecked")
+    static int toUnixMode(int defaultMode, FileAttribute<?>... attrs) {
+        int mode = defaultMode;
+        for (FileAttribute<?> attr: attrs) {
+            String name = attr.name();
+            if (!name.equals("posix:permissions") && !name.equals("unix:permissions")) {
+                throw new UnsupportedOperationException("'" + attr.name() +
+                   "' not supported as initial attribute");
+            }
+            mode = toUnixMode((Set<PosixFilePermission>)attr.value());
+        }
+        return mode;
+    }
+}