LUCENE-869: Changed FSIndexInput and FSIndexOutput to inner classes of FSDirectory to enable extensibility of these classes.

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@532259 13f79535-47bb-0310-9956-ffa450edef68

CHANGES.txt

@@ -46,6 +46,9 @@ API Changes
     combination when caching is desired.
     (Chris Hostetter, Otis Gospodnetic)
 
+ 8. LUCENE-869: Changed FSIndexInput and FSIndexOutput to inner classes of FSDirectory
+    to enable extensibility of these classes.
+
 Bug fixes
 
  1. LUCENE-804: Fixed build.xml to pack a fully compilable src dist.  (Doron Cohen)

src/java/org/apache/lucene/store/FSDirectory.java

@@ -487,10 +487,8 @@ public class FSDirectory extends Directory {
   public String toString() {
     return this.getClass().getName() + "@" + directory;
   }
-}
 
-
-class FSIndexInput extends BufferedIndexInput {
+  protected static class FSIndexInput extends BufferedIndexInput {
   
     private static class Descriptor extends RandomAccessFile {
       // remember if the file is open, so that we don't try to close it
@@ -572,10 +570,9 @@ class FSIndexInput extends BufferedIndexInput {
     boolean isFDValid() throws IOException {
       return file.getFD().valid();
     }
-}
+  }
 
-
-class FSIndexOutput extends BufferedIndexOutput {
+  protected static class FSIndexOutput extends BufferedIndexOutput {
     RandomAccessFile file = null;
   
     // remember if the file is open, so that we don't try to close it
@@ -609,4 +606,5 @@ class FSIndexOutput extends BufferedIndexOutput {
       return file.length();
     }
   
+  }
 }

src/test/org/apache/lucene/store/_TestHelper.java

@@ -2,6 +2,8 @@ package org.apache.lucene.store;
 
 import java.io.IOException;
 
+import org.apache.lucene.store.FSDirectory.FSIndexInput;
+
 /** This class provides access to package-level features defined in the
  *  store package. It is used for testing only.
  */