+++ /dev/null
-package org.apache.lucene.store;
-
-/**
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * 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.
- */
-
-import java.io.IOException;
-
-import org.apache.lucene.store.SimpleFSDirectory.SimpleFSIndexInput;
-
-/** This class provides access to package-level features defined in the
- * store package. It is used for testing only.
- */
-public class _TestHelper {
-
- /** Returns true if the instance of the provided input stream is actually
- * an SimpleFSIndexInput.
- */
- public static boolean isSimpleFSIndexInput(IndexInput is) {
- return is instanceof SimpleFSIndexInput;
- }
-
- /** Returns true if the provided input stream is an SimpleFSIndexInput and
- * is a clone, that is it does not own its underlying file descriptor.
- */
- public static boolean isSimpleFSIndexInputClone(IndexInput is) {
- if (isSimpleFSIndexInput(is)) {
- return ((SimpleFSIndexInput) is).isClone;
- } else {
- return false;
- }
- }
-
- /** Given an instance of SimpleFSDirectory.SimpleFSIndexInput, this method returns
- * true if the underlying file descriptor is valid, and false otherwise.
- * This can be used to determine if the OS file has been closed.
- * The descriptor becomes invalid when the non-clone instance of the
- * SimpleFSIndexInput that owns this descriptor is closed. However, the
- * descriptor may possibly become invalid in other ways as well.
- */
- public static boolean isSimpleFSIndexInputOpen(IndexInput is)
- throws IOException
- {
- if (isSimpleFSIndexInput(is)) {
- SimpleFSIndexInput fis = (SimpleFSIndexInput) is;
- return fis.isFDValid();
- } else {
- return false;
- }
- }
-
-}