/*
* Copyright 2011 The Netty Project
*
* The Netty Project 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 io.netty.channel.sctp;

import com.sun.nio.sctp.SctpServerChannel;
import com.sun.nio.sctp.SctpStandardSocketOptions;
import io.netty.buffer.ByteBufAllocator;
import io.netty.channel.ChannelException;
import io.netty.channel.ChannelOption;
import io.netty.channel.DefaultChannelConfig;
import io.netty.channel.MessageSizeEstimator;
import io.netty.channel.RecvByteBufAllocator;
import io.netty.channel.WriteBufferWaterMark;
import io.netty.util.NetUtil;

import java.io.IOException;
import java.util.Map;

The default SctpServerChannelConfig implementation for SCTP.
/** * The default {@link SctpServerChannelConfig} implementation for SCTP. */
public class DefaultSctpServerChannelConfig extends DefaultChannelConfig implements SctpServerChannelConfig { private final SctpServerChannel javaChannel; private volatile int backlog = NetUtil.SOMAXCONN;
Creates a new instance.
/** * Creates a new instance. */
public DefaultSctpServerChannelConfig( io.netty.channel.sctp.SctpServerChannel channel, SctpServerChannel javaChannel) { super(channel); if (javaChannel == null) { throw new NullPointerException("javaChannel"); } this.javaChannel = javaChannel; } @Override public Map<ChannelOption<?>, Object> getOptions() { return getOptions( super.getOptions(), ChannelOption.SO_RCVBUF, ChannelOption.SO_SNDBUF, SctpChannelOption.SCTP_INIT_MAXSTREAMS); } @SuppressWarnings("unchecked") @Override public <T> T getOption(ChannelOption<T> option) { if (option == ChannelOption.SO_RCVBUF) { return (T) Integer.valueOf(getReceiveBufferSize()); } if (option == ChannelOption.SO_SNDBUF) { return (T) Integer.valueOf(getSendBufferSize()); } if (option == SctpChannelOption.SCTP_INIT_MAXSTREAMS) { return (T) getInitMaxStreams(); } return super.getOption(option); } @Override public <T> boolean setOption(ChannelOption<T> option, T value) { validate(option, value); if (option == ChannelOption.SO_RCVBUF) { setReceiveBufferSize((Integer) value); } else if (option == ChannelOption.SO_SNDBUF) { setSendBufferSize((Integer) value); } else if (option == SctpChannelOption.SCTP_INIT_MAXSTREAMS) { setInitMaxStreams((SctpStandardSocketOptions.InitMaxStreams) value); } else { return super.setOption(option, value); } return true; } @Override public int getSendBufferSize() { try { return javaChannel.getOption(SctpStandardSocketOptions.SO_SNDBUF); } catch (IOException e) { throw new ChannelException(e); } } @Override public SctpServerChannelConfig setSendBufferSize(int sendBufferSize) { try { javaChannel.setOption(SctpStandardSocketOptions.SO_SNDBUF, sendBufferSize); } catch (IOException e) { throw new ChannelException(e); } return this; } @Override public int getReceiveBufferSize() { try { return javaChannel.getOption(SctpStandardSocketOptions.SO_RCVBUF); } catch (IOException e) { throw new ChannelException(e); } } @Override public SctpServerChannelConfig setReceiveBufferSize(int receiveBufferSize) { try { javaChannel.setOption(SctpStandardSocketOptions.SO_RCVBUF, receiveBufferSize); } catch (IOException e) { throw new ChannelException(e); } return this; } @Override public SctpStandardSocketOptions.InitMaxStreams getInitMaxStreams() { try { return javaChannel.getOption(SctpStandardSocketOptions.SCTP_INIT_MAXSTREAMS); } catch (IOException e) { throw new ChannelException(e); } } @Override public SctpServerChannelConfig setInitMaxStreams(SctpStandardSocketOptions.InitMaxStreams initMaxStreams) { try { javaChannel.setOption(SctpStandardSocketOptions.SCTP_INIT_MAXSTREAMS, initMaxStreams); } catch (IOException e) { throw new ChannelException(e); } return this; } @Override public int getBacklog() { return backlog; } @Override public SctpServerChannelConfig setBacklog(int backlog) { if (backlog < 0) { throw new IllegalArgumentException("backlog: " + backlog); } this.backlog = backlog; return this; } @Override @Deprecated public SctpServerChannelConfig setMaxMessagesPerRead(int maxMessagesPerRead) { super.setMaxMessagesPerRead(maxMessagesPerRead); return this; } @Override public SctpServerChannelConfig setWriteSpinCount(int writeSpinCount) { super.setWriteSpinCount(writeSpinCount); return this; } @Override public SctpServerChannelConfig setConnectTimeoutMillis(int connectTimeoutMillis) { super.setConnectTimeoutMillis(connectTimeoutMillis); return this; } @Override public SctpServerChannelConfig setAllocator(ByteBufAllocator allocator) { super.setAllocator(allocator); return this; } @Override public SctpServerChannelConfig setRecvByteBufAllocator(RecvByteBufAllocator allocator) { super.setRecvByteBufAllocator(allocator); return this; } @Override public SctpServerChannelConfig setAutoRead(boolean autoRead) { super.setAutoRead(autoRead); return this; } @Override public SctpServerChannelConfig setAutoClose(boolean autoClose) { super.setAutoClose(autoClose); return this; } @Override public SctpServerChannelConfig setWriteBufferLowWaterMark(int writeBufferLowWaterMark) { super.setWriteBufferLowWaterMark(writeBufferLowWaterMark); return this; } @Override public SctpServerChannelConfig setWriteBufferHighWaterMark(int writeBufferHighWaterMark) { super.setWriteBufferHighWaterMark(writeBufferHighWaterMark); return this; } @Override public SctpServerChannelConfig setWriteBufferWaterMark(WriteBufferWaterMark writeBufferWaterMark) { super.setWriteBufferWaterMark(writeBufferWaterMark); return this; } @Override public SctpServerChannelConfig setMessageSizeEstimator(MessageSizeEstimator estimator) { super.setMessageSizeEstimator(estimator); return this; } }