| /* |
| * 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.tomcat.websocket; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.AsynchronousSocketChannel; |
| import java.nio.channels.CompletionHandler; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| |
| /** |
| * Generally, just passes calls straight to the wrapped |
| * {@link AsynchronousSocketChannel}. In some cases exceptions may be swallowed |
| * to save them being swallowed by the calling code. |
| */ |
| public class AsyncChannelWrapperNonSecure implements AsyncChannelWrapper { |
| |
| private static final Future<Void> NOOP_FUTURE = new NoOpFuture(); |
| |
| private final AsynchronousSocketChannel socketChannel; |
| |
| public AsyncChannelWrapperNonSecure( |
| AsynchronousSocketChannel socketChannel) { |
| this.socketChannel = socketChannel; |
| } |
| |
| @Override |
| public Future<Integer> read(ByteBuffer dst) { |
| return socketChannel.read(dst); |
| } |
| |
| @Override |
| public <B,A extends B> void read(ByteBuffer dst, A attachment, |
| CompletionHandler<Integer,B> handler) { |
| socketChannel.read(dst, attachment, handler); |
| } |
| |
| @Override |
| public Future<Integer> write(ByteBuffer src) { |
| return socketChannel.write(src); |
| } |
| |
| @Override |
| public <B,A extends B> void write(ByteBuffer[] srcs, int offset, int length, |
| long timeout, TimeUnit unit, A attachment, |
| CompletionHandler<Long,B> handler) { |
| socketChannel.write( |
| srcs, offset, length, timeout, unit, attachment, handler); |
| } |
| |
| @Override |
| public void close() { |
| try { |
| socketChannel.close(); |
| } catch (IOException e) { |
| // Ignore |
| } |
| } |
| |
| @Override |
| public Future<Void> handshake() { |
| return NOOP_FUTURE; |
| } |
| |
| |
| private static final class NoOpFuture implements Future<Void> { |
| |
| @Override |
| public boolean cancel(boolean mayInterruptIfRunning) { |
| return false; |
| } |
| |
| @Override |
| public boolean isCancelled() { |
| return false; |
| } |
| |
| @Override |
| public boolean isDone() { |
| return true; |
| } |
| |
| @Override |
| public Void get() throws InterruptedException, ExecutionException { |
| return null; |
| } |
| |
| @Override |
| public Void get(long timeout, TimeUnit unit) |
| throws InterruptedException, ExecutionException, |
| TimeoutException { |
| return null; |
| } |
| } |
| } |