Example usage for io.netty.handler.codec.http.websocketx PingWebSocketFrame PingWebSocketFrame

Introduction

In this page you can find the example usage for io.netty.handler.codec.http.websocketx PingWebSocketFrame PingWebSocketFrame.

Prototype

public PingWebSocketFrame() 

Source Link

Document

Creates a new empty ping frame.

Usage

From source file:com.codebullets.external.party.simulator.connections.websocket.outbound.KeepAliveHandler.java

License:Apache License

/**
 * Triggered by the IdleStateHandler in the channel pipeline. Indicates that either
 * no message has been either sent or received for a longer period of time.
 *///from  w  w w .  j  a v a 2  s.com
@Override
public void userEventTriggered(final ChannelHandlerContext ctx, final Object evt) {
    if (evt instanceof IdleStateEvent) {
        IdleStateEvent e = (IdleStateEvent) evt;
        if (e.state() == IdleState.WRITER_IDLE && isAlive) {
            // no message has been sent for longer period of time -> send ping to keep connection alive
            ctx.writeAndFlush(new PingWebSocketFrame());
        } else if (e.state() == IdleState.READER_IDLE) {
            // no message has been received for a longer period of time
            // this means even no pong events.
            LOG.warn("No message received in expected time.");
            ctx.close();
        }
    }
}

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From source file:io.crossbar.autobahn.wamp.transports.NettyWebSocketClientHandler.java

License:MIT License

@Override
public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
    if (evt instanceof IdleStateEvent) {
        IdleStateEvent event = (IdleStateEvent) evt;
        if (event.state() == IdleState.READER_IDLE) {
            close(ctx, false, new CloseDetails(CloseDetails.REASON_TRANSPORT_LOST, null));
        } else if (event.state() == IdleState.WRITER_IDLE) {
            ctx.writeAndFlush(new PingWebSocketFrame());
        }/*from  w  w  w  .  j  av a 2 s.co m*/
    }
}

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From source file:io.reactivex.netty.protocol.http.websocket.WebSocketClientServerTest.java

License:Apache License

@Test
public void testPingPong() throws Exception {
    TestSequenceExecutor executor = new TestSequenceExecutor().withClientFrames(new PingWebSocketFrame())
            .withExpectedOnServer(1).withServerFrames(new PongWebSocketFrame()).withExpectedOnClient(1)
            .execute();/*from w  w w. j  a v  a2s . co m*/

    assertTrue("Expected ping on server",
            executor.getReceivedClientFrames().get(0) instanceof PingWebSocketFrame);
    assertTrue("Expected pong on client",
            executor.getReceivedServerFrames().get(0) instanceof PongWebSocketFrame);
}

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From source file:org.shelloid.vpt.agent.App.java

License:Open Source License

@Override
public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
    if (evt instanceof IdleStateEvent) {
        switch (((IdleStateEvent) evt).state()) {
        case ALL_IDLE: {
            Platform.shelloidLogger.debug("Client sending PingWebSocketFrame to " + ctx.channel());
            ctx.channel().writeAndFlush(new PingWebSocketFrame());
            break;
        }//from ww w  . j  av  a 2  s.com
        case READER_IDLE: {
            Platform.shelloidLogger.debug("Read Idle for " + (Configurations.PING_SEND_INTERVAL * 2)
                    + " seconds. So closing the channel: " + ctx.channel());
            ctx.channel().close();
            break;
        }
        }
    }
}

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From source file:org.shelloid.vpt.rms.server.VPTServer.java

License:Open Source License

@Override
public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
    if (evt instanceof IdleStateEvent) {
        switch (((IdleStateEvent) evt).state()) {
        case ALL_IDLE: {
            Platform.shelloidLogger.debug("Server sending PingWebSocketFrame to " + ctx.channel());
            ctx.channel().writeAndFlush(new PingWebSocketFrame());
            break;
        }//from  w ww. j a  va2  s. c om
        case READER_IDLE: {
            Platform.shelloidLogger.debug("Read Idle for " + (Configurations.PING_SEND_INTERVAL * 2)
                    + " seconds. So closing the channel: " + ctx.channel());
            ctx.channel().close();
            break;
        }
        }
    }
}

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From source file:org.thingsplode.synapse.proxy.handlers.WSMessageDecoder.java

License:Apache License

@Override
public void handlerAdded(ChannelHandlerContext ctx) {
    handshakeFuture = ctx.newPromise();/*  w  w  w.j a  va  2s .  c o m*/
    handshakeFuture.addListener((ChannelFutureListener) (ChannelFuture future) -> {
        if (future.isSuccess()) {
            //websocket HANDSHAKE was successfull, scheduing pinging
            pingScheduledFuture = ctx.channel().eventLoop().scheduleAtFixedRate(() -> {
                ctx.writeAndFlush(new PingWebSocketFrame());
            }, 0, 60, TimeUnit.SECONDS);
        }
    });

}

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