Example usage for io.netty.channel ChannelFutureListener CLOSE

Introduction

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

Prototype

ChannelFutureListener CLOSE

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Document

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

Usage

From source file:com.l2jmobius.gameserver.network.telnet.TelnetServerHandler.java

License:Open Source License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
    // Cast to a String first.
    // We know it is a String because we put some codec in TelnetPipelineFactory.
    String request = (String) msg;

    // Generate and write a response.
    String response = null;//from   w ww.  ja  va  2  s  .c  o m
    boolean close = false;

    if (Boolean.FALSE.equals(ctx.attr(AUTHORIZED).get())) {
        if (Config.TELNET_PASSWORD.equals(request)) {
            ctx.attr(AUTHORIZED).set(Boolean.TRUE);
            request = "";
        } else {
            response = "Wrong password!" + Config.EOL;
            close = true;
        }
    }

    if (Boolean.TRUE.equals(ctx.attr(AUTHORIZED).get())) {
        if (request.isEmpty()) {
            response = "Type 'help' to see all available commands." + Config.EOL;
        } else if (request.toLowerCase().equals("exit")) {
            response = "Have a good day!" + Config.EOL;
            close = true;
        } else {
            final Matcher m = COMMAND_ARGS_PATTERN.matcher(request);

            if (m.find()) {
                final String command = m.group();
                final List<String> args = new ArrayList<>();
                String arg;

                while (m.find()) {
                    arg = m.group(1);

                    if (arg == null) {
                        arg = m.group(0);
                    }

                    args.add(arg);
                }

                response = tryHandleCommand(ctx, command, args.toArray(new String[args.size()]));
                if (!response.endsWith(Config.EOL)) {
                    response += Config.EOL;
                }
            }
        }
    }

    // We do not need to write a ChannelBuffer here.
    // We know the encoder inserted at TelnetPipelineFactory will do the conversion.
    final ChannelFuture future = ctx.write(response);

    // Close the connection after sending 'Have a good day!'
    // if the client has sent 'exit'.
    if (close) {
        future.addListener(ChannelFutureListener.CLOSE);
    }
}

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From source file:com.leadtone.riders.server.RidersWebSocketServerHandler.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).
    if (res.getStatus().code() != 200) {
        res.content().writeBytes(Unpooled.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8));
        setContentLength(res, res.content().readableBytes());
    }//from w  ww.  j a  v a2 s  .  c o m

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

---

From source file:com.liferay.sync.engine.lan.server.file.LanFileServerHandler.java

License:Open Source License

protected void sendFile(final ChannelHandlerContext channelHandlerContext, FullHttpRequest fullHttpRequest,
        SyncFile syncFile) throws Exception {

    Path path = Paths.get(syncFile.getFilePathName());

    if (Files.notExists(path)) {
        _syncTrafficShapingHandler.decrementConnectionsCount();

        if (_logger.isTraceEnabled()) {
            Channel channel = channelHandlerContext.channel();

            _logger.trace("Client {}: file not found {}", channel.remoteAddress(), path);
        }//from  w w w . java 2  s. c o  m

        _sendError(channelHandlerContext, NOT_FOUND);

        return;
    }

    if (_logger.isDebugEnabled()) {
        Channel channel = channelHandlerContext.channel();

        _logger.debug("Client {}: sending file {}", channel.remoteAddress(), path);
    }

    long modifiedTime = syncFile.getModifiedTime();
    long previousModifiedTime = syncFile.getPreviousModifiedTime();

    if (OSDetector.isApple()) {
        modifiedTime = modifiedTime / 1000 * 1000;
        previousModifiedTime = previousModifiedTime / 1000 * 1000;
    }

    FileTime currentFileTime = Files.getLastModifiedTime(path, LinkOption.NOFOLLOW_LINKS);

    long currentTime = currentFileTime.toMillis();

    if ((currentTime != modifiedTime) && (currentTime != previousModifiedTime)) {

        _syncTrafficShapingHandler.decrementConnectionsCount();

        Channel channel = channelHandlerContext.channel();

        _logger.error(
                "Client {}: file modified {}, currentTime {}, modifiedTime " + "{}, previousModifiedTime {}",
                channel.remoteAddress(), path, currentTime, modifiedTime, previousModifiedTime);

        _sendError(channelHandlerContext, NOT_FOUND);

        return;
    }

    HttpResponse httpResponse = new DefaultHttpResponse(HTTP_1_1, OK);

    long size = Files.size(path);

    HttpUtil.setContentLength(httpResponse, size);

    HttpHeaders httpHeaders = httpResponse.headers();

    MimetypesFileTypeMap mimetypesFileTypeMap = new MimetypesFileTypeMap();

    httpHeaders.set(HttpHeaderNames.CONTENT_TYPE, mimetypesFileTypeMap.getContentType(syncFile.getName()));

    if (HttpUtil.isKeepAlive(fullHttpRequest)) {
        httpHeaders.set(HttpHeaderNames.CONNECTION, HttpHeaderValues.KEEP_ALIVE);
    }

    channelHandlerContext.write(httpResponse);

    SyncChunkedFile syncChunkedFile = new SyncChunkedFile(path, size, 4 * 1024 * 1024, currentTime);

    ChannelFuture channelFuture = channelHandlerContext.writeAndFlush(new HttpChunkedInput(syncChunkedFile),
            channelHandlerContext.newProgressivePromise());

    channelFuture.addListener(new ChannelFutureListener() {

        @Override
        public void operationComplete(ChannelFuture channelFuture) throws Exception {

            _syncTrafficShapingHandler.decrementConnectionsCount();

            if (channelFuture.isSuccess()) {
                return;
            }

            Throwable exception = channelFuture.cause();

            Channel channel = channelHandlerContext.channel();

            _logger.error("Client {}: {}", channel.remoteAddress(), exception.getMessage(), exception);

            channelHandlerContext.close();
        }

    });

    if (!HttpUtil.isKeepAlive(fullHttpRequest)) {
        channelFuture.addListener(ChannelFutureListener.CLOSE);
    }
}

---

From source file:com.liferay.sync.engine.lan.server.file.LanFileServerHandler.java

License:Open Source License

private void _sendError(ChannelHandlerContext channelHandlerContext, HttpResponseStatus httpResponseStatus) {

    ChannelFuture channelFuture = channelHandlerContext
            .writeAndFlush(new DefaultFullHttpResponse(HTTP_1_1, httpResponseStatus));

    channelFuture.addListener(ChannelFutureListener.CLOSE);
}

---

From source file:com.linecorp.armeria.internal.http.Http1ObjectEncoder.java

License:Apache License

@Override
protected ChannelFuture doWriteReset(ChannelHandlerContext ctx, int id, int streamId, Http2Error error) {
    // NB: this.minClosedId can be overwritten more than once when 3+ pipelined requests are received
    //     and they are handled by different threads simultaneously.
    //     e.g. when the 3rd request triggers a reset and then the 2nd one triggers another.
    minClosedId = Math.min(minClosedId, id);
    for (int i = minClosedId; i <= maxIdWithPendingWrites; i++) {
        final PendingWrites pendingWrites = this.pendingWrites.remove(i);
        for (;;) {
            final Entry<HttpObject, ChannelPromise> e = pendingWrites.poll();
            if (e == null) {
                break;
            }/*from  w w  w  . jav a 2s. c  om*/
            e.getValue().tryFailure(ClosedSessionException.get());
        }
    }

    final ChannelFuture f = ctx.write(Unpooled.EMPTY_BUFFER);
    if (currentId >= minClosedId) {
        f.addListener(ChannelFutureListener.CLOSE);
    }

    return f;
}

---

From source file:com.linecorp.armeria.internal.Http1ObjectEncoder.java

License:Apache License

private ChannelFuture writeServerHeaders(ChannelHandlerContext ctx, int id, int streamId, HttpHeaders headers,
        boolean endStream) throws Http2Exception {

    final HttpObject converted = convertServerHeaders(streamId, headers, endStream);
    final HttpStatus status = headers.status();
    if (status == null) {
        // Trailing headers
        final ChannelFuture f = write(ctx, id, converted, endStream);
        ctx.flush();/*from   www  .j a  va2s.  c  o  m*/
        return f;
    }

    if (status.codeClass() == HttpStatusClass.INFORMATIONAL) {
        // Informational status headers.
        final ChannelFuture f = write(ctx, id, converted, false);
        if (endStream) {
            // Can't end a stream with informational status in HTTP/1.
            f.addListener(ChannelFutureListener.CLOSE);
        }
        ctx.flush();
        return f;
    }

    // Non-informational status headers.
    return writeNonInformationalHeaders(ctx, id, converted, endStream);
}

---

From source file:com.linecorp.armeria.internal.Http1ObjectEncoder.java

License:Apache License

@Override
protected ChannelFuture doWriteReset(ChannelHandlerContext ctx, int id, int streamId, Http2Error error) {
    // NB: this.minClosedId can be overwritten more than once when 3+ pipelined requests are received
    //     and they are handled by different threads simultaneously.
    //     e.g. when the 3rd request triggers a reset and then the 2nd one triggers another.
    minClosedId = Math.min(minClosedId, id);
    for (int i = minClosedId; i <= maxIdWithPendingWrites; i++) {
        final PendingWrites pendingWrites = pendingWritesMap.remove(i);
        for (;;) {
            final Entry<HttpObject, ChannelPromise> e = pendingWrites.poll();
            if (e == null) {
                break;
            }//from   w ww.ja  v  a2  s. c om
            e.getValue().tryFailure(ClosedSessionException.get());
        }
    }

    final ChannelFuture f = ctx.write(Unpooled.EMPTY_BUFFER);
    if (currentId >= minClosedId) {
        f.addListener(ChannelFutureListener.CLOSE);
    }

    return f;
}

---

From source file:com.linecorp.armeria.server.http.Http1RequestDecoder.java

License:Apache License

private void fail(ChannelHandlerContext ctx, HttpResponseStatus status) {
    discarding = true;/*from  w w  w  .jav a2s .c o  m*/
    req = null;

    final ChannelFuture future;
    if (receivedRequests <= sentResponses) {
        // Just close the connection if sending an error response will make the number of the sent
        // responses exceed the number of the received requests, which doesn't make sense.
        future = ctx.writeAndFlush(Unpooled.EMPTY_BUFFER);
    } else {
        final ByteBuf content = Unpooled.copiedBuffer(status.toString(), StandardCharsets.UTF_8);
        final FullHttpResponse res = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, status, content);

        final HttpHeaders headers = res.headers();
        headers.set(HttpHeaderNames.CONNECTION, HttpHeaderValues.CLOSE);
        headers.set(HttpHeaderNames.CONTENT_TYPE, MediaType.PLAIN_TEXT_UTF_8);
        headers.setInt(HttpHeaderNames.CONTENT_LENGTH, content.readableBytes());

        future = ctx.writeAndFlush(res);
    }

    future.addListener(ChannelFutureListener.CLOSE);
}

---

From source file:com.lufs.preresearch.nettyrouter.playground.HttpHelloWorldServerHandler.java

License:Apache License

private void sendError(ChannelHandlerContext ctx, HttpResponseStatus httpResponseStatus) {
    FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, httpResponseStatus);
    ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
}

---

From source file:com.lxz.talk.websocketx.server.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).
    if (res.getStatus().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8);
        res.content().writeBytes(buf);//from w ww . j av a2  s  . 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);
    }
}

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