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.github.nettybook.ch8.TelnetServerHandler.java

License:Apache License

@Override
public void channelRead0(ChannelHandlerContext ctx, String request) throws Exception {
    // Generate and write a response.
    String response;/*from w w  w .  j ava2s.  c  o m*/
    boolean close = false;
    if (request.isEmpty()) {
        response = "?  .\r\n";
    } else if ("bye".equals(request.toLowerCase())) {
        response = " !\r\n";
        close = true;
    } else {
        response = " ? '" + request + "' .\r\n";
    }

    // TelnetPipelineFactory? ? StringEncoder? ?? ?   
    // ChannelBuffer?  ?    ? ?? .   
    ChannelFuture future = ctx.write(response);

    // ??? bye ?  close  true? ? ? ?.
    if (close) {
        future.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.github.rmannibucau.featuredmock.http.FeaturedHandler.java

License:Apache License

@Override
protected void channelRead0(final ChannelHandlerContext ctx, final FullHttpRequest request) throws Exception {
    if (!request.getDecoderResult().isSuccess()) {
        sendError(ctx, HttpResponseStatus.BAD_REQUEST);
        return;/*w w w  . j  av a2  s  .  c  o  m*/
    }

    InputStream stream = null;
    String type = null;

    final String accept = request.headers().get(HttpHeaders.Names.ACCEPT);
    if (accept != null) {
        for (final String a : accept.split(",")) {
            if (mappers != null) {
                for (final ContentTypeMapper mapper : mappers) {
                    if (mapper.handle(a)) {
                        final String extension = mapper.extension(a);
                        stream = findResource(request, extension);
                        if (stream == null && extension != null && !extension.startsWith(".")) {
                            stream = findResource(request, "." + extension);
                        }
                        if (stream != null) {
                            type = mapper.contentType(a);
                            break;
                        }
                    }
                }
            }

            if (stream == null) {
                for (final String ext : EXTENSIONS) {
                    if (a.contains(ext.substring(1))) {
                        stream = findResource(request, ext);
                        if (stream != null) {
                            type = "application/" + ext.substring(1); // remove dot
                        }
                        break;
                    }
                }
            }

            if (stream != null) {
                break;
            }
        }
    }

    if (stream == null) { // not found from content type so try all extensions
        for (final String ext : EXTENSIONS) {
            stream = findResource(request, ext);
            if (stream != null) {
                type = "application/" + ext.substring(1); // remove dot
                break;
            }
        }
    }

    if (stream == null) { // try without extension
        stream = findResource(request, "");
        if (stream != null) {
            type = "text/plain";
        }
    }

    if (stream == null) {
        sendError(ctx, HttpResponseStatus.NOT_FOUND);
        return;
    }

    final byte[] bytes = IOs.slurp(stream);
    final HttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK,
            Unpooled.copiedBuffer(bytes));
    HttpHeaders.setContentLength(response, bytes.length);
    response.headers().set(HttpHeaders.Names.CONTENT_TYPE, type);
    ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
}

From source file:com.github.rmannibucau.featuredmock.http.FeaturedHandler.java

License:Apache License

private static void sendError(final ChannelHandlerContext ctx, final HttpResponseStatus status) {
    final FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, status,
            Unpooled.copiedBuffer("Failure: " + status.toString() + "\r\n", CharsetUtil.UTF_8));
    response.headers().set(HttpHeaders.Names.CONTENT_TYPE, "text/plain; charset=UTF-8");
    ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
}

From source file:com.github.thinker0.mesos.MesosHealthCheckerServer.java

License:Apache License

/**
 * Writes a HTTP response.//from  w  w  w. ja v a 2 s.  co m
 *
 * @param ctx           The channel context.
 * @param request       The HTTP request.
 * @param status        The HTTP status code.
 * @param buf           The response content buffer.
 * @param contentType   The response content type.
 * @param contentLength The response content length;
 */
private void writeResponse(final ChannelHandlerContext ctx, final FullHttpRequest request,
        final HttpResponseStatus status, final ByteBuf buf, final CharSequence contentType,
        final int contentLength) {

    // Decide whether to close the connection or not.
    final boolean keepAlive = isKeepAlive(request);

    // Build the response object.
    final FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, status, buf, false);

    final ZonedDateTime dateTime = ZonedDateTime.now();
    final DateTimeFormatter formatter = DateTimeFormatter.RFC_1123_DATE_TIME;

    final DefaultHttpHeaders headers = (DefaultHttpHeaders) response.headers();
    headers.set(HttpHeaderNames.SERVER, SERVER_NAME);
    headers.set(HttpHeaderNames.DATE, dateTime.format(formatter));
    headers.set(HttpHeaderNames.CONTENT_TYPE, contentType);
    headers.set(HttpHeaderNames.CONTENT_LENGTH, Integer.toString(contentLength));

    // Close the non-keep-alive connection after the write operation is done.
    if (!keepAlive) {
        ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
    } else {
        ctx.writeAndFlush(response, ctx.voidPromise());
    }
}

From source file:com.github.unafraid.signer.server.ServerHandler.java

License:Apache License

private void processResponse(ChannelHandlerContext ctx, HttpRequest req, FullHttpResponse response) {
    if (response.headers().get(CONTENT_TYPE, null) == null) {
        response.headers().set(CONTENT_TYPE, "text/html");
    }//from ww w .ja  v a2 s.  co  m
    response.headers().setInt(CONTENT_LENGTH, response.content().readableBytes());

    if (!HttpHeaderUtil.isKeepAlive(req)) {
        ctx.write(response).addListener(ChannelFutureListener.CLOSE);
    } else {
        response.headers().set(CONNECTION, HttpHeaderValues.KEEP_ALIVE);
        ctx.write(response);
    }
}

From source file:com.github.wens.netty.web.impl.ResponseImp.java

License:Apache License

public synchronized void finish(boolean keepAlive) {
    finish = true;/*from w  w w  .  jav a2 s  .c  o m*/
    writeHeader(keepAlive);
    writeBody();
    if (!keepAlive) {
        ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT).addListener(ChannelFutureListener.CLOSE);
    } else {

        ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
    }
}

From source file:com.google.devtools.build.remote.worker.HttpCacheServerHandler.java

License:Open Source License

private void handleGet(ChannelHandlerContext ctx, FullHttpRequest request) {
    byte[] contents = cache.get(request.uri());

    if (contents == null) {
        sendError(ctx, request, HttpResponseStatus.NOT_FOUND);
        return;/*from   w w  w . j  a  v  a 2s  . c  om*/
    }

    FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK,
            Unpooled.wrappedBuffer(contents));
    HttpUtil.setContentLength(response, contents.length);
    response.headers().set(HttpHeaderNames.CONTENT_TYPE, "application/octet-stream");
    ChannelFuture lastContentFuture = ctx.writeAndFlush(response);

    if (!HttpUtil.isKeepAlive(request)) {
        lastContentFuture.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.google.devtools.build.remote.worker.HttpCacheServerHandler.java

License:Open Source License

private void handlePut(ChannelHandlerContext ctx, FullHttpRequest request) {
    if (!request.decoderResult().isSuccess()) {
        sendError(ctx, request, HttpResponseStatus.INTERNAL_SERVER_ERROR);
        return;//from   ww  w .jav  a  2  s .c o  m
    }

    byte[] contentBytes = new byte[request.content().readableBytes()];
    request.content().readBytes(contentBytes);
    cache.putIfAbsent(request.uri(), contentBytes);

    FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1,
            HttpResponseStatus.NO_CONTENT);
    ChannelFuture lastContentFuture = ctx.writeAndFlush(response);

    if (!HttpUtil.isKeepAlive(request)) {
        lastContentFuture.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:com.google.devtools.build.remote.worker.HttpCacheServerHandler.java

License:Open Source License

private static void sendError(ChannelHandlerContext ctx, FullHttpRequest request, HttpResponseStatus status) {
    FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, status,
            Unpooled.copiedBuffer("Failure: " + status + "\r\n", CharsetUtil.UTF_8));
    response.headers().set(HttpHeaderNames.CONTENT_TYPE, "text/plain; charset=UTF-8");
    ChannelFuture future = ctx.writeAndFlush(response);

    if (!HttpUtil.isKeepAlive(request)) {
        future.addListener(ChannelFutureListener.CLOSE);
    }/*from w ww . ja  v  a 2s  . co  m*/
}

From source file:com.googlecode.protobuf.pro.duplex.handler.ServerConnectRequestHandler.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, WirePayload msg, List<Object> out) throws Exception {
    if (msg.hasConnectRequest()) {
        ConnectRequest connectRequest = msg.getConnectRequest();
        if (log.isDebugEnabled()) {
            log.debug("Received [" + connectRequest.getCorrelationId() + "]ConnectRequest.");
        }/*w w  w .  j a  v a 2  s. c  om*/
        PeerInfo connectingClientInfo = new PeerInfo(connectRequest.getClientHostName(),
                connectRequest.getClientPort(), connectRequest.getClientPID());
        ConnectResponse connectResponse = null;

        RpcClient rpcClient = new RpcClient(ctx.channel(), pipelineFactory.getServerInfo(),
                connectingClientInfo, connectRequest.getCompress(), pipelineFactory.getLogger(),
                pipelineFactory.getExtensionRegistry());
        if (pipelineFactory.getRpcClientRegistry().registerRpcClient(rpcClient)) {
            connectResponse = ConnectResponse.newBuilder().setCorrelationId(connectRequest.getCorrelationId())
                    .setServerPID(pipelineFactory.getServerInfo().getPid())
                    .setCompress(connectRequest.getCompress()).build();
            WirePayload payload = WirePayload.newBuilder().setConnectResponse(connectResponse).build();

            if (log.isDebugEnabled()) {
                log.debug("Sending [" + connectResponse.getCorrelationId() + "]ConnectResponse.");
            }
            ctx.channel().writeAndFlush(payload);

            // now we swap this Handler out of the pipeline and complete the server side pipeline.
            RpcClientHandler clientHandler = pipelineFactory.completePipeline(rpcClient);
            clientHandler.notifyOpened();
        } else {
            connectResponse = ConnectResponse.newBuilder().setCorrelationId(connectRequest.getCorrelationId())
                    .setErrorCode(ConnectErrorCode.ALREADY_CONNECTED).build();
            WirePayload payload = WirePayload.newBuilder().setConnectResponse(connectResponse).build();

            if (log.isDebugEnabled()) {
                log.debug("Sending [" + connectResponse.getCorrelationId()
                        + "]ConnectResponse. Already Connected.");
            }
            ChannelFuture future = ctx.channel().writeAndFlush(payload);
            future.addListener(ChannelFutureListener.CLOSE); // close after write response.
        }
    } else {
        out.add(msg);
    }
}