add getters to FSD; change listAll to directly create String[]

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@771260 13f79535-47bb-0310-9956-ffa450edef68

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

@@ -44,6 +44,14 @@ public class FileSwitchDirectory extends Directory {
     this.lockFactory = primaryDir.getLockFactory();
   }
   
+  public Directory getPrimaryDir() {
+    return primaryDir;
+  }
+  
+  public Directory getSecondaryDir() {
+    return secondaryDir;
+  }
+  
   public void close() throws IOException {
     if (doClose) {
       try {
@@ -56,16 +64,12 @@ public class FileSwitchDirectory extends Directory {
   }
   
   public String[] listAll() throws IOException {
-    List list = new ArrayList();
-    String[] ramFiles = secondaryDir.listAll();
-    for (int x = 0; x < ramFiles.length; x++) {
-      list.add(ramFiles[x]);
-    }
-    String[] fsFiles = primaryDir.listAll();
-    for (int x = 0; x < fsFiles.length; x++) {
-      list.add(fsFiles[x]);
-    }
-    return (String[]) list.toArray(new String[0]);
+    String[] primaryFiles = primaryDir.listAll();
+    String[] secondaryFiles = secondaryDir.listAll();
+    String[] files = new String[primaryFiles.length + secondaryFiles.length];
+    System.arraycopy(primaryFiles, 0, files, 0, primaryFiles.length);
+    System.arraycopy(secondaryFiles, 0, files, primaryFiles.length, secondaryFiles.length);
+    return files;
   }
   
   public String[] list() throws IOException {

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

@@ -65,7 +65,10 @@ public class TestFileSwitchDirectory extends LuceneTestCase {
     reader.close();
     writer.close();
 
-    primaryDir.close();
-    secondaryDir.close();
+    files = fsd.listAll();
+    for(int i=0;i<files.length;i++) {
+      assertNotNull(files[i]);
+    }
+    fsd.close();
   }
 }