--- a/jdk/src/java.httpclient/share/classes/java/net/http/PlainHttpConnection.java Thu Dec 08 21:22:02 2016 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,403 +0,0 @@
-/*
- * 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 java.net.http;
-
-import java.io.IOException;
-import java.net.InetSocketAddress;
-import java.net.StandardSocketOptions;
-import java.nio.ByteBuffer;
-import java.nio.channels.SelectableChannel;
-import java.nio.channels.SelectionKey;
-import java.nio.channels.SocketChannel;
-import java.util.concurrent.CompletableFuture;
-import java.util.function.Consumer;
-
-/**
- * Plain raw TCP connection direct to destination. 2 modes
- * 1) Blocking used by http/1. In this case the connect is actually non
- * blocking but the request is sent blocking. The first byte of a response
- * is received non-blocking and the remainder of the response is received
- * blocking
- * 2) Non-blocking. In this case (for http/2) the connection is actually opened
- * blocking but all reads and writes are done non-blocking under the
- * control of a Http2Connection object.
- */
-class PlainHttpConnection extends HttpConnection implements AsyncConnection {
-
- protected SocketChannel chan;
- private volatile boolean connected;
- private boolean closed;
- Consumer<ByteBuffer> asyncReceiver;
- Consumer<Throwable> errorReceiver;
- Queue<ByteBuffer> asyncOutputQ;
- final Object reading = new Object();
- final Object writing = new Object();
-
- @Override
- public void startReading() {
- try {
- client.registerEvent(new ReadEvent());
- } catch (IOException e) {
- shutdown();
- }
- }
-
- class ConnectEvent extends AsyncEvent {
- CompletableFuture<Void> cf;
-
- ConnectEvent(CompletableFuture<Void> cf) {
- super(AsyncEvent.BLOCKING);
- this.cf = cf;
- }
-
- @Override
- public SelectableChannel channel() {
- return chan;
- }
-
- @Override
- public int interestOps() {
- return SelectionKey.OP_CONNECT;
- }
-
- @Override
- public void handle() {
- try {
- chan.finishConnect();
- } catch (IOException e) {
- cf.completeExceptionally(e);
- }
- connected = true;
- cf.complete(null);
- }
-
- @Override
- public void abort() {
- close();
- }
- }
-
- @Override
- public CompletableFuture<Void> connectAsync() {
- CompletableFuture<Void> plainFuture = new CompletableFuture<>();
- try {
- chan.configureBlocking(false);
- chan.connect(address);
- client.registerEvent(new ConnectEvent(plainFuture));
- } catch (IOException e) {
- plainFuture.completeExceptionally(e);
- }
- return plainFuture;
- }
-
- @Override
- public void connect() throws IOException {
- chan.connect(address);
- connected = true;
- }
-
- @Override
- SocketChannel channel() {
- return chan;
- }
-
- PlainHttpConnection(InetSocketAddress addr, HttpClientImpl client) {
- super(addr, client);
- try {
- this.chan = SocketChannel.open();
- int bufsize = client.getReceiveBufferSize();
- chan.setOption(StandardSocketOptions.SO_RCVBUF, bufsize);
- chan.setOption(StandardSocketOptions.TCP_NODELAY, true);
- } catch (IOException e) {
- throw new InternalError(e);
- }
- }
-
- @Override
- long write(ByteBuffer[] buffers, int start, int number) throws IOException {
- if (mode != Mode.ASYNC)
- return chan.write(buffers, start, number);
- // async
- synchronized(writing) {
- int qlen = asyncOutputQ.size();
- ByteBuffer[] bufs = Utils.reduce(buffers, start, number);
- long n = Utils.remaining(bufs);
- asyncOutputQ.putAll(bufs);
- if (qlen == 0)
- asyncOutput();
- return n;
- }
- }
-
- ByteBuffer asyncBuffer = null;
-
- void asyncOutput() {
- synchronized (writing) {
- try {
- while (true) {
- if (asyncBuffer == null) {
- asyncBuffer = asyncOutputQ.poll();
- if (asyncBuffer == null) {
- return;
- }
- }
- if (!asyncBuffer.hasRemaining()) {
- asyncBuffer = null;
- continue;
- }
- int n = chan.write(asyncBuffer);
- //System.err.printf("Written %d bytes to chan\n", n);
- if (n == 0) {
- client.registerEvent(new WriteEvent());
- return;
- }
- }
- } catch (IOException e) {
- shutdown();
- }
- }
- }
-
- @Override
- long write(ByteBuffer buffer) throws IOException {
- if (mode != Mode.ASYNC)
- return chan.write(buffer);
- // async
- synchronized(writing) {
- int qlen = asyncOutputQ.size();
- long n = buffer.remaining();
- asyncOutputQ.put(buffer);
- if (qlen == 0)
- asyncOutput();
- return n;
- }
- }
-
- @Override
- public String toString() {
- return "PlainHttpConnection: " + super.toString();
- }
-
- /**
- * Close this connection
- */
- @Override
- public synchronized void close() {
- if (closed)
- return;
- closed = true;
- try {
- Log.logError("Closing: " + toString());
- //System.out.println("Closing: " + this);
- chan.close();
- } catch (IOException e) {}
- }
-
- @Override
- protected ByteBuffer readImpl(int length) throws IOException {
- ByteBuffer buf = getBuffer(); // TODO not using length
- int n = chan.read(buf);
- if (n == -1) {
- return null;
- }
- buf.flip();
- String s = "Receive (" + n + " bytes) ";
- //debugPrint(s, buf);
- return buf;
- }
-
- void shutdown() {
- close();
- errorReceiver.accept(new IOException("Connection aborted"));
- }
-
- void asyncRead() {
- synchronized (reading) {
- try {
- while (true) {
- ByteBuffer buf = getBuffer();
- int n = chan.read(buf);
- //System.err.printf("Read %d bytes from chan\n", n);
- if (n == -1) {
- throw new IOException();
- }
- if (n == 0) {
- returnBuffer(buf);
- return;
- }
- buf.flip();
- asyncReceiver.accept(buf);
- }
- } catch (IOException e) {
- shutdown();
- }
- }
- }
-
- @Override
- protected int readImpl(ByteBuffer buf) throws IOException {
- int mark = buf.position();
- int n;
- // FIXME: this hack works in conjunction with the corresponding change
- // in java.net.http.RawChannel.registerEvent
- if ((n = buffer.remaining()) != 0) {
- buf.put(buffer);
- } else {
- n = chan.read(buf);
- }
- if (n == -1) {
- return -1;
- }
- Utils.flipToMark(buf, mark);
- String s = "Receive (" + n + " bytes) ";
- //debugPrint(s, buf);
- return n;
- }
-
- @Override
- ConnectionPool.CacheKey cacheKey() {
- return new ConnectionPool.CacheKey(address, null);
- }
-
- @Override
- synchronized boolean connected() {
- return connected;
- }
-
- // used for all output in HTTP/2
- class WriteEvent extends AsyncEvent {
- WriteEvent() {
- super(0);
- }
-
- @Override
- public SelectableChannel channel() {
- return chan;
- }
-
- @Override
- public int interestOps() {
- return SelectionKey.OP_WRITE;
- }
-
- @Override
- public void handle() {
- asyncOutput();
- }
-
- @Override
- public void abort() {
- shutdown();
- }
- }
-
- // used for all input in HTTP/2
- class ReadEvent extends AsyncEvent {
- ReadEvent() {
- super(AsyncEvent.REPEATING); // && !BLOCKING
- }
-
- @Override
- public SelectableChannel channel() {
- return chan;
- }
-
- @Override
- public int interestOps() {
- return SelectionKey.OP_READ;
- }
-
- @Override
- public void handle() {
- asyncRead();
- }
-
- @Override
- public void abort() {
- shutdown();
- }
-
- }
-
- // used in blocking channels only
- class ReceiveResponseEvent extends AsyncEvent {
- CompletableFuture<Void> cf;
-
- ReceiveResponseEvent(CompletableFuture<Void> cf) {
- super(AsyncEvent.BLOCKING);
- this.cf = cf;
- }
- @Override
- public SelectableChannel channel() {
- return chan;
- }
-
- @Override
- public void handle() {
- cf.complete(null);
- }
-
- @Override
- public int interestOps() {
- return SelectionKey.OP_READ;
- }
-
- @Override
- public void abort() {
- close();
- }
- }
-
- @Override
- boolean isSecure() {
- return false;
- }
-
- @Override
- boolean isProxied() {
- return false;
- }
-
- @Override
- public synchronized void setAsyncCallbacks(Consumer<ByteBuffer> asyncReceiver,
- Consumer<Throwable> errorReceiver) {
- this.asyncReceiver = asyncReceiver;
- this.errorReceiver = errorReceiver;
- asyncOutputQ = new Queue<>();
- asyncOutputQ.registerPutCallback(this::asyncOutput);
- }
-
- @Override
- CompletableFuture<Void> whenReceivingResponse() {
- CompletableFuture<Void> cf = new CompletableFuture<>();
- try {
- client.registerEvent(new ReceiveResponseEvent(cf));
- } catch (IOException e) {
- cf.completeExceptionally(e);
- }
- return cf;
- }
-}