/*
* Copyright 2014 Netflix, Inc.
*
* Licensed 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.reactivex.netty.protocol.udp.client;
import io.netty.buffer.ByteBuf;
import io.netty.channel.Channel;
import io.netty.channel.socket.DatagramPacket;
import io.reactivex.netty.channel.ChannelMetricEventProvider;
import io.reactivex.netty.channel.ObservableConnection;
import io.reactivex.netty.metrics.MetricEventsSubject;
import rx.Observable;
import java.net.InetSocketAddress;
import java.nio.charset.Charset;
/**
* An extension of {@link ObservableConnection} for UDP. The basic difference is that a UDP connection must always
* eventually write a {@link DatagramPacket} by default.
*
* @author Nitesh Kant
*/
public class UdpClientConnection<I, O> extends ObservableConnection<I, O> {
private final InetSocketAddress receiverAddress;
protected UdpClientConnection(Channel channel, InetSocketAddress receiverAddress,
ChannelMetricEventProvider metricEventProvider,
MetricEventsSubject<?> eventsSubject) {
super(channel, metricEventProvider, eventsSubject);
this.receiverAddress = receiverAddress;
}
public static <I, O> UdpClientConnection<I, O> create(final Channel channel,
InetSocketAddress receiverAddress,
final MetricEventsSubject<?> eventsSubject,
final ChannelMetricEventProvider metricEventProvider) {
UdpClientConnection<I, O> toReturn = new UdpClientConnection<I, O>(channel, receiverAddress, metricEventProvider,
eventsSubject);
toReturn.fireNewRxConnectionEvent();
return toReturn;
}
@Override
public void writeBytes(byte[] msg) {
ByteBuf data = getChannel().alloc().buffer(msg.length);
data.writeBytes(msg);
writeOnChannel(new DatagramPacket(data, receiverAddress));
}
@Override
public Observable<Void> writeBytesAndFlush(byte[] msg) {
writeBytes(msg);
return flush();
}
@Override
public void writeString(String msg) {
byte[] dataBytes = msg.getBytes(Charset.defaultCharset());
writeBytes(dataBytes);
}
@Override
public Observable<Void> writeStringAndFlush(String msg) {
writeString(msg);
return flush();
}
}