[1119262 jon3-7] EAP6 drifts exclude pattern not working for windows …

…case

The issue here is that the drift template defines the plugin descriptor
and in this case, the associated excludes filter: pattern="*_history/**/*".
It can only be predefined in one format, and the plugin naturally uses
linux-style forward slashes for the directory separator.

But on Windows that is the wrong separator.

The solution is to convert to the native separator slash internally at
"detection-time", regardless of the slashing used in the pattern.  This is,
I think, in-line with ant file-pattern approach we are using.

Also,
-- added new FileUtil.useNativeSlash(String path)

Cherry-Pick of master 83e926c0debb558b2e90efee47317517ea4bb4db

modules/core/plugin-container/src/main/java/org/rhq/core/pc/drift/FilterFileVisitor.java

@@ -29,6 +29,7 @@
 import org.apache.commons.io.FilenameUtils;
 
 import org.rhq.core.domain.drift.Filter;
+import org.rhq.core.util.file.FileUtil;
 import org.rhq.core.util.file.FileVisitor;
 import org.rhq.core.util.file.PathFilter;
 
@@ -123,6 +124,10 @@ private PathFilter normalize(File basedir, Filter filter) {
             filterPattern = filter.getPattern();
         }
 
+        // Calling getAbsolutePath will ensure the filterPath has the native file separator characters. But
+        // it is also important that the pattern use native separators because the ultimate matching will be
+        // against native file paths.
+        filterPattern = FileUtil.useNativeSlash(filterPattern);
         return new PathFilter(FilenameUtils.normalize(filterPath.getAbsolutePath()), filterPattern);
     }
 

modules/core/util/src/main/java/org/rhq/core/util/file/FileUtil.java

@@ -436,6 +436,26 @@ public static String useForwardSlash(String path) {
         return (null != path) ? path.replace('\\', '/') : null;
     }
 
+    /**
+     * Ensure that the path uses only forward slash.
+     * @param path
+     * @return backward-slashed path, or null if path is null
+     */
+    public static String useBackwardSlash(String path) {
+
+        return (null != path) ? path.replace('/', '\\') : null;
+    }
+
+    /**
+     * Ensure that the path uses only the proper file separator for the OS.
+     * @param path
+     * @return appropriate forward- or back-slashed path, or null if path is null
+     */
+    public static String useNativeSlash(String path) {
+
+        return ('/' == File.separatorChar) ? useForwardSlash(path) : useBackwardSlash(path);
+    }
+
     /**
      * Return just the filename portion (the portion right of the last path separator string)
      * @param path