extended configuration (to hande Kitkat issues)

brouter-core/src/main/java/btools/router/RoutingHelper.java

@@ -0,0 +1,58 @@
+/**
+ * static helper class for handling datafiles
+ *
+ * @author ab
+ */
+package btools.router;
+
+import java.io.File;
+
+import btools.mapaccess.StorageConfigHelper;
+
+public final class RoutingHelper
+{
+    public static File getAdditionalMaptoolDir( String segmentDir )
+    {
+    	return StorageConfigHelper.getAdditionalMaptoolDir(segmentDir);
+    }
+
+    public static File getSecondarySegmentDir( String segmentDir )
+    {
+    	return StorageConfigHelper.getSecondarySegmentDir(segmentDir);
+    }
+    
+    
+    public static boolean hasDirectoryAnyDatafiles( String segmentDir )
+    {
+        if ( hasAnyDatafiles( new File( segmentDir ) ) )
+        {
+        	return true;
+        }
+        // check secondary, too
+      	File secondary = StorageConfigHelper.getSecondarySegmentDir( segmentDir );
+      	if ( secondary != null )
+      	{
+          return hasAnyDatafiles( secondary );
+      	}
+        return false;
+    }
+
+    private static boolean hasAnyDatafiles( File dir )
+    {
+        String[] fileNames = dir.list();
+        for( String fileName : fileNames )
+        {
+          if ( fileName.endsWith( ".rd5" ) ) return true;
+        }
+        File carSubset = new File( dir, "carsubset" );
+        if ( carSubset.isDirectory() )
+        {
+          fileNames = carSubset.list();
+          for( String fileName : fileNames )
+          {
+            if ( fileName.endsWith( ".cd5" ) ) return true;
+          }
+        }
+    	return false;
+    }
+}