| /* |
| * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.incubator.http; |
| |
| import jdk.incubator.http.internal.common.Utils; |
| import jdk.incubator.http.internal.websocket.RawChannel; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.SelectableChannel; |
| import java.nio.channels.SocketChannel; |
| |
| /* |
| * Each RawChannel corresponds to a TCP connection (SocketChannel) but is |
| * connected to a Selector and an ExecutorService for invoking the send and |
| * receive callbacks. Also includes SSL processing. |
| */ |
| final class RawChannelImpl implements RawChannel { |
| |
| private final HttpClientImpl client; |
| private final HttpConnection connection; |
| private final Object initialLock = new Object(); |
| private ByteBuffer initial; |
| |
| RawChannelImpl(HttpClientImpl client, |
| HttpConnection connection, |
| ByteBuffer initial) |
| throws IOException |
| { |
| this.client = client; |
| this.connection = connection; |
| SocketChannel chan = connection.channel(); |
| client.cancelRegistration(chan); |
| // Constructing a RawChannel is supposed to have a "hand over" |
| // semantics, in other words if construction fails, the channel won't be |
| // needed by anyone, in which case someone still needs to close it |
| try { |
| chan.configureBlocking(false); |
| } catch (IOException e) { |
| try { |
| chan.close(); |
| } catch (IOException e1) { |
| e.addSuppressed(e1); |
| } |
| throw e; |
| } |
| // empty the initial buffer into our own copy. |
| synchronized (initialLock) { |
| this.initial = initial.hasRemaining() |
| ? Utils.copy(initial) |
| : Utils.EMPTY_BYTEBUFFER; |
| } |
| } |
| |
| private class NonBlockingRawAsyncEvent extends AsyncEvent { |
| |
| private final RawEvent re; |
| |
| NonBlockingRawAsyncEvent(RawEvent re) { |
| super(0); // !BLOCKING & !REPEATING |
| this.re = re; |
| } |
| |
| @Override |
| public SelectableChannel channel() { |
| return connection.channel(); |
| } |
| |
| @Override |
| public int interestOps() { |
| return re.interestOps(); |
| } |
| |
| @Override |
| public void handle() { |
| re.handle(); |
| } |
| |
| @Override |
| public void abort() { } |
| } |
| |
| @Override |
| public void registerEvent(RawEvent event) throws IOException { |
| client.registerEvent(new NonBlockingRawAsyncEvent(event)); |
| } |
| |
| @Override |
| public ByteBuffer read() throws IOException { |
| assert !connection.channel().isBlocking(); |
| return connection.read(); |
| } |
| |
| @Override |
| public ByteBuffer initialByteBuffer() { |
| synchronized (initialLock) { |
| if (initial == null) { |
| throw new IllegalStateException(); |
| } |
| ByteBuffer ref = initial; |
| initial = null; |
| return ref; |
| } |
| } |
| |
| @Override |
| public long write(ByteBuffer[] src, int offset, int len) throws IOException { |
| return connection.write(src, offset, len); |
| } |
| |
| @Override |
| public void shutdownInput() throws IOException { |
| connection.shutdownInput(); |
| } |
| |
| @Override |
| public void shutdownOutput() throws IOException { |
| connection.shutdownOutput(); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| connection.close(); |
| } |
| } |