--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/windows/classes/sun/nio/fs/RegistryFileTypeDetector.java Sun Feb 15 12:25:54 2009 +0000
@@ -0,0 +1,82 @@
+/*
+ * 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.*;
+import java.io.IOException;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+
+/**
+ * File type detector that does lookup of file extension using Windows Registry.
+ */
+
+public class RegistryFileTypeDetector
+ extends AbstractFileTypeDetector
+{
+ public RegistryFileTypeDetector() {
+ super();
+ }
+
+ @Override
+ public String implProbeContentType(FileRef file) throws IOException {
+ if (!(file instanceof Path))
+ return null;
+
+ // get file extension
+ Path name = ((Path)file).getName();
+ if (name == null)
+ return null;
+ String filename = name.toString();
+ int dot = filename.lastIndexOf('.');
+ if ((dot < 0) || (dot == (filename.length()-1)))
+ return null;
+
+ // query HKEY_CLASSES_ROOT\<ext>
+ String key = filename.substring(dot);
+ NativeBuffer keyBuffer = WindowsNativeDispatcher.asNativeBuffer(key);
+ NativeBuffer nameBuffer = WindowsNativeDispatcher.asNativeBuffer("Content Type");
+ try {
+ return queryStringValue(keyBuffer.address(), nameBuffer.address());
+ } finally {
+ nameBuffer.release();
+ keyBuffer.release();
+ }
+ }
+
+ private static native String queryStringValue(long subKey, long name);
+
+ static {
+ AccessController.doPrivileged(new PrivilegedAction<Void>() {
+ @Override
+ public Void run() {
+ // nio.dll has dependency on net.dll
+ System.loadLibrary("net");
+ System.loadLibrary("nio");
+ return null;
+ }});
+ }
+}