| /* |
| * 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. |
| */ |
| package org.apache.lucene.mockfile; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.AsynchronousFileChannel; |
| import java.nio.channels.CompletionHandler; |
| import java.nio.channels.FileLock; |
| import java.util.Objects; |
| import java.util.concurrent.Future; |
| |
| /** |
| * A {@code FilterAsynchronousFileChannel} contains another |
| * {@code AsynchronousFileChannel}, which it uses as its basic |
| * source of data, possibly transforming the data along the |
| * way or providing additional functionality. |
| */ |
| public class FilterAsynchronousFileChannel extends AsynchronousFileChannel { |
| |
| /** |
| * The underlying {@code AsynchronousFileChannel} instance. |
| */ |
| protected final AsynchronousFileChannel delegate; |
| |
| /** |
| * Construct a {@code FilterAsynchronousFileChannel} based on |
| * the specified base channel. |
| * <p> |
| * Note that base channel is closed if this channel is closed. |
| * @param delegate specified base channel. |
| */ |
| public FilterAsynchronousFileChannel(AsynchronousFileChannel delegate) { |
| this.delegate = Objects.requireNonNull(delegate); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| delegate.close(); |
| } |
| |
| @Override |
| public boolean isOpen() { |
| return delegate.isOpen(); |
| } |
| |
| @Override |
| public long size() throws IOException { |
| return delegate.size(); |
| } |
| |
| @Override |
| public AsynchronousFileChannel truncate(long size) throws IOException { |
| delegate.truncate(size); |
| return this; |
| } |
| |
| @Override |
| public void force(boolean metaData) throws IOException { |
| delegate.force(metaData); |
| } |
| |
| @Override |
| public <A> void lock(long position, long size, boolean shared, A attachment, CompletionHandler<FileLock,? super A> handler) { |
| delegate.lock(position, size, shared, attachment, handler); |
| } |
| |
| @Override |
| public Future<FileLock> lock(long position, long size, boolean shared) { |
| return delegate.lock(position, size, shared); |
| } |
| |
| @Override |
| public FileLock tryLock(long position, long size, boolean shared) throws IOException { |
| return delegate.tryLock(position, size, shared); |
| } |
| |
| @Override |
| public <A> void read(ByteBuffer dst, long position, A attachment, CompletionHandler<Integer,? super A> handler) { |
| delegate.read(dst, position, attachment, handler); |
| } |
| |
| @Override |
| public Future<Integer> read(ByteBuffer dst, long position) { |
| return delegate.read(dst, position); |
| } |
| |
| @Override |
| public <A> void write(ByteBuffer src, long position, A attachment, CompletionHandler<Integer,? super A> handler) { |
| delegate.write(src, position, attachment, handler); |
| } |
| |
| @Override |
| public Future<Integer> write(ByteBuffer src, long position) { |
| return delegate.write(src, position); |
| } |
| } |