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diff --git a/src/java/nginx/unit/websocket/AsyncChannelWrapperNonSecure.java b/src/java/nginx/unit/websocket/AsyncChannelWrapperNonSecure.java
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+/*
+ * 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 nginx.unit.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;
+ }
+ }
+}