Example usage for io.netty.channel ChannelFutureListener CLOSE

List of usage examples for io.netty.channel ChannelFutureListener CLOSE

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Introduction

In this page you can find the example usage for io.netty.channel ChannelFutureListener CLOSE.

Prototype

ChannelFutureListener CLOSE

To view the source code for io.netty.channel ChannelFutureListener CLOSE.

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Document

A ChannelFutureListener that closes the Channel which is associated with the specified ChannelFuture .

Usage

From source file:io.netty.example.http.upload.HttpUploadServerHandler.java

License:Apache License

private void writeMenu(ChannelHandlerContext ctx) {
    // print several HTML forms
    // Convert the response content to a ChannelBuffer.
    responseContent.setLength(0);//from   w w w . j av a2s . c  om

    // create Pseudo Menu
    responseContent.append("<html>");
    responseContent.append("<head>");
    responseContent.append("<title>Netty Test Form</title>\r\n");
    responseContent.append("</head>\r\n");
    responseContent.append("<body bgcolor=white><style>td{font-size: 12pt;}</style>");

    responseContent.append("<table border=\"0\">");
    responseContent.append("<tr>");
    responseContent.append("<td>");
    responseContent.append("<h1>Netty Test Form</h1>");
    responseContent.append("Choose one FORM");
    responseContent.append("</td>");
    responseContent.append("</tr>");
    responseContent.append("</table>\r\n");

    // GET
    responseContent.append("<CENTER>GET FORM<HR WIDTH=\"75%\" NOSHADE color=\"blue\"></CENTER>");
    responseContent.append("<FORM ACTION=\"/formget\" METHOD=\"GET\">");
    responseContent.append("<input type=hidden name=getform value=\"GET\">");
    responseContent.append("<table border=\"0\">");
    responseContent.append("<tr><td>Fill with value: <br> <input type=text name=\"info\" size=10></td></tr>");
    responseContent.append("<tr><td>Fill with value: <br> <input type=text name=\"secondinfo\" size=20>");
    responseContent
            .append("<tr><td>Fill with value: <br> <textarea name=\"thirdinfo\" cols=40 rows=10></textarea>");
    responseContent.append("</td></tr>");
    responseContent.append("<tr><td><INPUT TYPE=\"submit\" NAME=\"Send\" VALUE=\"Send\"></INPUT></td>");
    responseContent.append("<td><INPUT TYPE=\"reset\" NAME=\"Clear\" VALUE=\"Clear\" ></INPUT></td></tr>");
    responseContent.append("</table></FORM>\r\n");
    responseContent.append("<CENTER><HR WIDTH=\"75%\" NOSHADE color=\"blue\"></CENTER>");

    // POST
    responseContent.append("<CENTER>POST FORM<HR WIDTH=\"75%\" NOSHADE color=\"blue\"></CENTER>");
    responseContent.append("<FORM ACTION=\"/formpost\" METHOD=\"POST\">");
    responseContent.append("<input type=hidden name=getform value=\"POST\">");
    responseContent.append("<table border=\"0\">");
    responseContent.append("<tr><td>Fill with value: <br> <input type=text name=\"info\" size=10></td></tr>");
    responseContent.append("<tr><td>Fill with value: <br> <input type=text name=\"secondinfo\" size=20>");
    responseContent
            .append("<tr><td>Fill with value: <br> <textarea name=\"thirdinfo\" cols=40 rows=10></textarea>");
    responseContent.append("<tr><td>Fill with file (only file name will be transmitted): <br> "
            + "<input type=file name=\"myfile\">");
    responseContent.append("</td></tr>");
    responseContent.append("<tr><td><INPUT TYPE=\"submit\" NAME=\"Send\" VALUE=\"Send\"></INPUT></td>");
    responseContent.append("<td><INPUT TYPE=\"reset\" NAME=\"Clear\" VALUE=\"Clear\" ></INPUT></td></tr>");
    responseContent.append("</table></FORM>\r\n");
    responseContent.append("<CENTER><HR WIDTH=\"75%\" NOSHADE color=\"blue\"></CENTER>");

    // POST with enctype="multipart/form-data"
    responseContent.append("<CENTER>POST MULTIPART FORM<HR WIDTH=\"75%\" NOSHADE color=\"blue\"></CENTER>");
    responseContent
            .append("<FORM ACTION=\"/formpostmultipart\" ENCTYPE=\"multipart/form-data\" METHOD=\"POST\">");
    responseContent.append("<input type=hidden name=getform value=\"POST\">");
    responseContent.append("<table border=\"0\">");
    responseContent.append("<tr><td>Fill with value: <br> <input type=text name=\"info\" size=10></td></tr>");
    responseContent.append("<tr><td>Fill with value: <br> <input type=text name=\"secondinfo\" size=20>");
    responseContent
            .append("<tr><td>Fill with value: <br> <textarea name=\"thirdinfo\" cols=40 rows=10></textarea>");
    responseContent.append("<tr><td>Fill with file: <br> <input type=file name=\"myfile\">");
    responseContent.append("</td></tr>");
    responseContent.append("<tr><td><INPUT TYPE=\"submit\" NAME=\"Send\" VALUE=\"Send\"></INPUT></td>");
    responseContent.append("<td><INPUT TYPE=\"reset\" NAME=\"Clear\" VALUE=\"Clear\" ></INPUT></td></tr>");
    responseContent.append("</table></FORM>\r\n");
    responseContent.append("<CENTER><HR WIDTH=\"75%\" NOSHADE color=\"blue\"></CENTER>");

    responseContent.append("</body>");
    responseContent.append("</html>");

    ByteBuf buf = copiedBuffer(responseContent.toString(), CharsetUtil.UTF_8);
    // Build the response object.
    FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK, buf);

    response.headers().set(HttpHeaderNames.CONTENT_TYPE, "text/html; charset=UTF-8");
    response.headers().setInt(HttpHeaderNames.CONTENT_LENGTH, buf.readableBytes());

    // Decide whether to close the connection or not.
    boolean keepAlive = HttpUtil.isKeepAlive(request);
    if (!keepAlive) {
        response.headers().set(HttpHeaderNames.CONNECTION, HttpHeaderValues.CLOSE);
    } else if (request.protocolVersion().equals(HttpVersion.HTTP_1_0)) {
        response.headers().set(HttpHeaderNames.CONNECTION, HttpHeaderValues.KEEP_ALIVE);
    }

    // Write the response.
    ChannelFuture future = ctx.channel().writeAndFlush(response);
    // Close the connection after the write operation is done if necessary.
    if (!keepAlive) {
        future.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:io.netty.example.http.websocketx.benchmarkserver.WebSocketServerHandler.java

License:Apache License

private static void sendHttpResponse(ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {
    // Generate an error page if response getStatus code is not OK (200).
    HttpResponseStatus responseStatus = res.status();
    if (responseStatus.code() != 200) {
        ByteBufUtil.writeUtf8(res.content(), responseStatus.toString());
        HttpUtil.setContentLength(res, res.content().readableBytes());
    }/*  www  .  j  a  v a  2s .c  o  m*/
    // Send the response and close the connection if necessary.
    boolean keepAlive = HttpUtil.isKeepAlive(req) && responseStatus.code() == 200;
    HttpUtil.setKeepAlive(res, keepAlive);
    ChannelFuture future = ctx.write(res); // Flushed in channelReadComplete()
    if (!keepAlive) {
        future.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:io.netty.example.http.websocketx.server.WebSocketIndexPageHandler.java

License:Apache License

private static void sendHttpResponse(ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {
    // Generate an error page if response getStatus code is not OK (200).
    HttpResponseStatus responseStatus = res.status();
    if (responseStatus.code() != 200) {
        ByteBufUtil.writeUtf8(res.content(), responseStatus.toString());
        HttpUtil.setContentLength(res, res.content().readableBytes());
    }/*from   www.j  a va2s.  co  m*/
    // Send the response and close the connection if necessary.
    boolean keepAlive = HttpUtil.isKeepAlive(req) && responseStatus.code() == 200;
    HttpUtil.setKeepAlive(res, keepAlive);
    ChannelFuture future = ctx.writeAndFlush(res);
    if (!keepAlive) {
        future.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:io.netty.example.http2.helloworld.server.HelloWorldHttp1Handler.java

License:Apache License

@Override
public void channelRead0(ChannelHandlerContext ctx, FullHttpRequest req) throws Exception {
    if (HttpUtil.is100ContinueExpected(req)) {
        ctx.write(new DefaultFullHttpResponse(HTTP_1_1, CONTINUE, Unpooled.EMPTY_BUFFER));
    }//from w  ww. j  a  v  a 2s. co m
    boolean keepAlive = HttpUtil.isKeepAlive(req);

    ByteBuf content = ctx.alloc().buffer();
    content.writeBytes(HelloWorldHttp2Handler.RESPONSE_BYTES.duplicate());
    ByteBufUtil.writeAscii(content, " - via " + req.protocolVersion() + " (" + establishApproach + ")");

    FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK, content);
    response.headers().set(CONTENT_TYPE, "text/plain; charset=UTF-8");
    response.headers().setInt(CONTENT_LENGTH, response.content().readableBytes());

    if (keepAlive) {
        if (req.protocolVersion().equals(HTTP_1_0)) {
            response.headers().set(CONNECTION, KEEP_ALIVE);
        }
        ctx.write(response);
    } else {
        // Tell the client we're going to close the connection.
        response.headers().set(CONNECTION, CLOSE);
        ctx.write(response).addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:io.netty.example.http2.tiles.FallbackRequestHandler.java

License:Apache License

@Override
protected void channelRead0(ChannelHandlerContext ctx, HttpRequest req) throws Exception {
    if (HttpUtil.is100ContinueExpected(req)) {
        ctx.write(new DefaultFullHttpResponse(HTTP_1_1, CONTINUE, EMPTY_BUFFER));
    }//from  w ww .j av a  2  s.com

    ByteBuf content = ctx.alloc().buffer();
    content.writeBytes(response.duplicate());

    FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK, content);
    response.headers().set(CONTENT_TYPE, "text/html; charset=UTF-8");
    response.headers().setInt(CONTENT_LENGTH, response.content().readableBytes());

    ctx.write(response).addListener(ChannelFutureListener.CLOSE);
}

From source file:io.netty.example.http2.tiles.Http1RequestHandler.java

License:Apache License

@Override
protected void sendResponse(final ChannelHandlerContext ctx, String streamId, int latency,
        final FullHttpResponse response, final FullHttpRequest request) {
    HttpUtil.setContentLength(response, response.content().readableBytes());
    ctx.executor().schedule(new Runnable() {
        @Override/*from www .j ava2  s. c  o m*/
        public void run() {
            if (isKeepAlive(request)) {
                if (request.protocolVersion().equals(HTTP_1_0)) {
                    response.headers().set(CONNECTION, KEEP_ALIVE);
                }
                ctx.writeAndFlush(response);
            } else {
                // Tell the client we're going to close the connection.
                response.headers().set(CONNECTION, CLOSE);
                ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
            }
        }
    }, latency, TimeUnit.MILLISECONDS);
}

From source file:io.netty.example.spdy.server.SpdyServerHandler.java

License:Apache License

@Override
public void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {
    if (msg instanceof HttpRequest) {
        HttpRequest req = (HttpRequest) msg;

        if (is100ContinueExpected(req)) {
            ctx.write(new DefaultFullHttpResponse(HTTP_1_1, CONTINUE, Unpooled.EMPTY_BUFFER));
        }/*from  w  w w.  j ava  2 s .co  m*/
        boolean keepAlive = isKeepAlive(req);

        ByteBuf content = Unpooled.copiedBuffer("Hello World " + new Date(), CharsetUtil.UTF_8);

        FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK, content);
        response.headers().set(CONTENT_TYPE, "text/plain; charset=UTF-8");
        response.headers().setInt(CONTENT_LENGTH, response.content().readableBytes());

        if (keepAlive) {
            if (req.protocolVersion().equals(HTTP_1_0)) {
                response.headers().set(CONNECTION, KEEP_ALIVE);
            }
            ctx.write(response);
        } else {
            // Tell the client we're going to close the connection.
            response.headers().set(CONNECTION, CLOSE);
            ctx.write(response).addListener(ChannelFutureListener.CLOSE);
        }
    }
}

From source file:io.nodyn.stream.StreamWrap.java

License:Apache License

public void close() {
    if (this.channelFuture != null && this.channelFuture.channel() != null) {
        this.channelFuture.addListener(ChannelFutureListener.CLOSE);
    }/*from  w  w  w. java 2  s.c o m*/
    super.close();
}

From source file:io.riox.springxd.sinks.websocket.NettyWebSocketServerHandler.java

License:Apache License

void sendHttpResponse(ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {
    // Generate an error page if response getStatus code is not OK (200).
    if (res.getStatus().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8);
        res.content().writeBytes(buf);/*from   w  ww.  java 2s.c o m*/
        buf.release();
        HttpHeaders.setContentLength(res, res.content().readableBytes());
    }

    // Send the response and close the connection if necessary.
    ChannelFuture f = ctx.channel().writeAndFlush(res);
    if (!HttpHeaders.isKeepAlive(req) || res.getStatus().code() != 200) {
        f.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:io.scalecube.socketio.pipeline.FlashPolicyHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    // ?/*from   w w w .j  a  va 2  s.  c o m*/
    if (msg instanceof ByteBuf) {
        ByteBuf message = (ByteBuf) msg;
        if (message.readableBytes() >= policyRequestBuffer.readableBytes()) {
            ByteBuf data = message.slice(0, policyRequestBuffer.readableBytes());
            if (data.equals(policyRequestBuffer)) {
                // Remove SSL handler from pipeline otherwise on channel close SSL handler
                // will fail all pending writes instead of flushing them and as a result
                // client won't get flash policy file.
                if (ctx.pipeline().get(SocketIOChannelInitializer.SSL_HANDLER) != null) {
                    ctx.pipeline().remove(SocketIOChannelInitializer.SSL_HANDLER);
                }

                // Send flash policy file and close connection
                ByteBuf response = PipelineUtils.copiedBuffer(ctx.alloc(), policyResponse);
                ChannelFuture f = ctx.writeAndFlush(response);
                f.addListener(ChannelFutureListener.CLOSE);
                if (log.isDebugEnabled())
                    log.debug("Sent flash policy file to channel: {}", ctx.channel());
                message.release();
                return;
            }
        }
        ctx.pipeline().remove(this);
    }
    ctx.fireChannelRead(msg);
}