/*
* 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.SctpChannel;
import com.sun.nio.sctp.SctpStandardSocketOptions;
import io.netty.buffer.ByteBufAllocator;
import io.netty.channel.ChannelConfig;
import io.netty.channel.ChannelException;
import io.netty.channel.ChannelOption;
import io.netty.channel.DefaultChannelConfig;
import io.netty.util.internal.PlatformDependent;
import java.io.IOException;
import java.util.Map;
import static io.netty.channel.sctp.SctpChannelOption.*;
/**
* The default {@link SctpChannelConfig} implementation for SCTP.
*/
public class DefaultSctpChannelConfig extends DefaultChannelConfig implements SctpChannelConfig {
private final SctpChannel javaChannel;
public DefaultSctpChannelConfig(io.netty.channel.sctp.SctpChannel channel, SctpChannel javaChannel) {
super(channel);
if (javaChannel == null) {
throw new NullPointerException("javaChannel");
}
this.javaChannel = javaChannel;
// Enable TCP_NODELAY by default if possible.
if (PlatformDependent.canEnableTcpNoDelayByDefault()) {
try {
setSctpNoDelay(true);
} catch (Exception e) {
// Ignore.
}
}
}
@Override
public Map<ChannelOption<?>, Object> getOptions() {
return getOptions(
super.getOptions(),
SO_RCVBUF, SO_SNDBUF, SCTP_NODELAY, SCTP_INIT_MAXSTREAMS);
}
@SuppressWarnings("unchecked")
@Override
public <T> T getOption(ChannelOption<T> option) {
if (option == SO_RCVBUF) {
return (T) Integer.valueOf(getReceiveBufferSize());
}
if (option == SO_SNDBUF) {
return (T) Integer.valueOf(getSendBufferSize());
}
if (option == SCTP_NODELAY) {
return (T) Boolean.valueOf(isSctpNoDelay());
}
return super.getOption(option);
}
@Override
public <T> boolean setOption(ChannelOption<T> option, T value) {
validate(option, value);
if (option == SO_RCVBUF) {
setReceiveBufferSize((Integer) value);
} else if (option == SO_SNDBUF) {
setSendBufferSize((Integer) value);
} else if (option == SCTP_NODELAY) {
setSctpNoDelay((Boolean) value);
} else if (option == SCTP_INIT_MAXSTREAMS) {
setInitMaxStreams((SctpStandardSocketOptions.InitMaxStreams) value);
} else {
return super.setOption(option, value);
}
return true;
}
@Override
public boolean isSctpNoDelay() {
try {
return javaChannel.getOption(SctpStandardSocketOptions.SCTP_NODELAY);
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public SctpChannelConfig setSctpNoDelay(boolean sctpNoDelay) {
try {
javaChannel.setOption(SctpStandardSocketOptions.SCTP_NODELAY, sctpNoDelay);
} catch (IOException e) {
throw new ChannelException(e);
}
return this;
}
@Override
public int getSendBufferSize() {
try {
return javaChannel.getOption(SctpStandardSocketOptions.SO_SNDBUF);
} catch (IOException e) {
throw new ChannelException(e);
}
}
@Override
public SctpChannelConfig 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 SctpChannelConfig 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 SctpChannelConfig setInitMaxStreams(SctpStandardSocketOptions.InitMaxStreams initMaxStreams) {
try {
javaChannel.setOption(SctpStandardSocketOptions.SCTP_INIT_MAXSTREAMS, initMaxStreams);
} catch (IOException e) {
throw new ChannelException(e);
}
return this;
}
@Override
public SctpChannelConfig setConnectTimeoutMillis(int connectTimeoutMillis) {
return (SctpChannelConfig) super.setConnectTimeoutMillis(connectTimeoutMillis);
}
@Override
public SctpChannelConfig setWriteSpinCount(int writeSpinCount) {
return (SctpChannelConfig) super.setWriteSpinCount(writeSpinCount);
}
@Override
public SctpChannelConfig setAllocator(ByteBufAllocator allocator) {
return (SctpChannelConfig) super.setAllocator(allocator);
}
@Override
public SctpChannelConfig setAutoRead(boolean autoRead) {
return (SctpChannelConfig) super.setAutoRead(autoRead);
}
@Override
public SctpChannelConfig setDefaultHandlerByteBufType(ChannelHandlerByteBufType type) {
return (SctpChannelConfig) super.setDefaultHandlerByteBufType(type);
}
}