Added code to detect if running on 64bit Windows to the Win32NetBIOS static initializer method and load the appropriate DLL.

Added the X64 utility class, currently just has a method for detecting 64bit Windows.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2627 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/filesys/util/X64.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * 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.alfresco.filesys.util;
+
+import java.util.Properties;
+
+/**
+ * X64 Class
+ * 
+ * <p>Check if the platform is a 64bit operating system.
+ * 
+ * @author gkspencer
+ */
+public class X64
+{
+    /**
+     * Check if we are running on a Windows 64bit system
+     * 
+     * @return boolean
+     */
+    public static boolean isWindows64()
+    {
+        // Check for Windows
+        
+        String prop = System.getProperty("os.name");
+        if ( prop == null || prop.startsWith("Windows") == false)
+            return false;
+
+        // Check the OS architecture
+        
+        prop = System.getProperty("os.arch");
+        if ( prop != null && prop.equalsIgnoreCase("amd64"))
+            return true;
+        
+        // Check the VM name
+        
+        prop = System.getProperty("java.vm.name");
+        if ( prop != null && prop.indexOf("64-Bit") != -1)
+            return true;
+
+        // Check the data model
+        
+        prop = System.getProperty("sun.arch.data.model");
+        if ( prop != null && prop.equals("64"))
+            return true;
+        
+        // Not 64 bit Windows
+        
+        return false;
+    }
+}