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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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.
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package sun.nio.ch;

import java.io.IOException;
import java.net.ProtocolFamily;
import java.nio.channels.DatagramChannel;
import java.nio.channels.Pipe;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.nio.channels.spi.AbstractSelector;
import java.nio.channels.spi.SelectorProvider;
import java.util.Objects;
import static java.net.StandardProtocolFamily.INET;
import static java.net.StandardProtocolFamily.INET6;
import static java.net.StandardProtocolFamily.UNIX;

public abstract class SelectorProviderImpl
    extends SelectorProvider
{
    @Override
    public DatagramChannel openDatagramChannel() throws IOException {
        return new DatagramChannelImpl(this, /*interruptible*/true);
    }

    
SelectorProviderImpl specific method to create a DatagramChannel that is not interruptible.
/** * SelectorProviderImpl specific method to create a DatagramChannel that * is not interruptible. */
public DatagramChannel openUninterruptibleDatagramChannel() throws IOException { return new DatagramChannelImpl(this, /*interruptible*/false); } @Override public DatagramChannel openDatagramChannel(ProtocolFamily family) throws IOException { return new DatagramChannelImpl(this, family, /*interruptible*/true); } @Override public Pipe openPipe() throws IOException { return new PipeImpl(this); } @Override public abstract AbstractSelector openSelector() throws IOException; @Override public ServerSocketChannel openServerSocketChannel() throws IOException { return new ServerSocketChannelImpl(this); } @Override public SocketChannel openSocketChannel() throws IOException { return new SocketChannelImpl(this); } @Override public SocketChannel openSocketChannel(ProtocolFamily family) throws IOException { Objects.requireNonNull(family, "'family' is null"); if (family == INET6 && !Net.isIPv6Available()) { throw new UnsupportedOperationException("IPv6 not available"); } else if (family == INET || family == INET6) { return new SocketChannelImpl(this, family); } else if (family == UNIX && UnixDomainSockets.isSupported()) { return new SocketChannelImpl(this, family); } else { throw new UnsupportedOperationException("Protocol family not supported"); } } @Override public ServerSocketChannel openServerSocketChannel(ProtocolFamily family) throws IOException { Objects.requireNonNull(family, "'family' is null"); if (family == INET6 && !Net.isIPv6Available()) { throw new UnsupportedOperationException("IPv6 not available"); } else if (family == INET || family == INET6) { return new ServerSocketChannelImpl(this, family); } else if (family == UNIX && UnixDomainSockets.isSupported()) { return new ServerSocketChannelImpl(this, family); } else { throw new UnsupportedOperationException("Protocol family not supported"); } } }