| /* |
| * Copyright (c) 2000, 2012, 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 sun.nio.ch; |
| |
| import java.io.*; |
| import java.net.*; |
| import java.nio.channels.*; |
| |
| |
| // Make a server-socket channel look like a server socket. |
| // |
| // The methods in this class are defined in exactly the same order as in |
| // java.net.ServerSocket so as to simplify tracking future changes to that |
| // class. |
| // |
| |
| public class ServerSocketAdaptor // package-private |
| extends ServerSocket |
| { |
| |
| // The channel being adapted |
| private final ServerSocketChannelImpl ssc; |
| |
| // Timeout "option" value for accepts |
| private volatile int timeout = 0; |
| |
| public static ServerSocket create(ServerSocketChannelImpl ssc) { |
| try { |
| return new ServerSocketAdaptor(ssc); |
| } catch (IOException x) { |
| throw new Error(x); |
| } |
| } |
| |
| // ## super will create a useless impl |
| private ServerSocketAdaptor(ServerSocketChannelImpl ssc) |
| throws IOException |
| { |
| this.ssc = ssc; |
| } |
| |
| |
| public void bind(SocketAddress local) throws IOException { |
| bind(local, 50); |
| } |
| |
| public void bind(SocketAddress local, int backlog) throws IOException { |
| if (local == null) |
| local = new InetSocketAddress(0); |
| try { |
| ssc.bind(local, backlog); |
| } catch (Exception x) { |
| Net.translateException(x); |
| } |
| } |
| |
| public InetAddress getInetAddress() { |
| if (!ssc.isBound()) |
| return null; |
| return Net.getRevealedLocalAddress(ssc.localAddress()).getAddress(); |
| |
| } |
| |
| public int getLocalPort() { |
| if (!ssc.isBound()) |
| return -1; |
| return Net.asInetSocketAddress(ssc.localAddress()).getPort(); |
| } |
| |
| |
| public Socket accept() throws IOException { |
| synchronized (ssc.blockingLock()) { |
| if (!ssc.isBound()) |
| throw new IllegalBlockingModeException(); |
| try { |
| if (timeout == 0) { |
| SocketChannel sc = ssc.accept(); |
| if (sc == null && !ssc.isBlocking()) |
| throw new IllegalBlockingModeException(); |
| return sc.socket(); |
| } |
| |
| ssc.configureBlocking(false); |
| try { |
| SocketChannel sc; |
| if ((sc = ssc.accept()) != null) |
| return sc.socket(); |
| long to = timeout; |
| for (;;) { |
| if (!ssc.isOpen()) |
| throw new ClosedChannelException(); |
| long st = System.currentTimeMillis(); |
| int result = ssc.poll(Net.POLLIN, to); |
| if (result > 0 && ((sc = ssc.accept()) != null)) |
| return sc.socket(); |
| to -= System.currentTimeMillis() - st; |
| if (to <= 0) |
| throw new SocketTimeoutException(); |
| } |
| } finally { |
| if (ssc.isOpen()) |
| ssc.configureBlocking(true); |
| } |
| |
| } catch (Exception x) { |
| Net.translateException(x); |
| assert false; |
| return null; // Never happens |
| } |
| } |
| } |
| |
| public void close() throws IOException { |
| ssc.close(); |
| } |
| |
| public ServerSocketChannel getChannel() { |
| return ssc; |
| } |
| |
| public boolean isBound() { |
| return ssc.isBound(); |
| } |
| |
| public boolean isClosed() { |
| return !ssc.isOpen(); |
| } |
| |
| public void setSoTimeout(int timeout) throws SocketException { |
| this.timeout = timeout; |
| } |
| |
| public int getSoTimeout() throws SocketException { |
| return timeout; |
| } |
| |
| public void setReuseAddress(boolean on) throws SocketException { |
| try { |
| ssc.setOption(StandardSocketOptions.SO_REUSEADDR, on); |
| } catch (IOException x) { |
| Net.translateToSocketException(x); |
| } |
| } |
| |
| public boolean getReuseAddress() throws SocketException { |
| try { |
| return ssc.getOption(StandardSocketOptions.SO_REUSEADDR).booleanValue(); |
| } catch (IOException x) { |
| Net.translateToSocketException(x); |
| return false; // Never happens |
| } |
| } |
| |
| public String toString() { |
| if (!isBound()) |
| return "ServerSocket[unbound]"; |
| return "ServerSocket[addr=" + getInetAddress() + |
| // ",port=" + getPort() + |
| ",localport=" + getLocalPort() + "]"; |
| } |
| |
| public void setReceiveBufferSize(int size) throws SocketException { |
| // size 0 valid for ServerSocketChannel, invalid for ServerSocket |
| if (size <= 0) |
| throw new IllegalArgumentException("size cannot be 0 or negative"); |
| try { |
| ssc.setOption(StandardSocketOptions.SO_RCVBUF, size); |
| } catch (IOException x) { |
| Net.translateToSocketException(x); |
| } |
| } |
| |
| public int getReceiveBufferSize() throws SocketException { |
| try { |
| return ssc.getOption(StandardSocketOptions.SO_RCVBUF).intValue(); |
| } catch (IOException x) { |
| Net.translateToSocketException(x); |
| return -1; // Never happens |
| } |
| } |
| |
| } |