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:de.jackwhite20.comix.handler.UpstreamHandler.java

License:Open Source License

@Override
public void channelInactive(ChannelHandlerContext ctx) {
    if (downstreamChannel != null) {
        if (downstreamChannel.isActive()) {
            downstreamChannel.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
        }/*from  w  w  w . jav a2s .  c  o  m*/

        if (client != null)
            Comix.getInstance().removeClient(client);

        upstreamBytesIn = 0;
        downstreamBytesOut = 0;

        Comix.getLogger()
                .info("["
                        + ((client != null) ? client.getName()
                                : Util.formatSocketAddress(upstreamChannel.remoteAddress()))
                        + "] -> UpstreamHandler has disconnected");
    }
}

From source file:deathcap.wsmc.web.HTTPHandler.java

License:Apache License

public void sendHttpResponse(ChannelHandlerContext context, FullHttpRequest request,
        FullHttpResponse response) {/*from   w  w w .j a  v a  2s .com*/
    if (response.getStatus().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(response.getStatus().toString(), CharsetUtil.UTF_8);
        response.content().writeBytes(buf);
        buf.release();
    }
    setContentLength(response, response.content().readableBytes());

    ChannelFuture future = context.channel().writeAndFlush(response);
    if (!isKeepAlive(request) || response.getStatus().code() != 200) {
        future.addListener(ChannelFutureListener.CLOSE);
    }
}

From source file:divconq.bus.net.ServerHandler.java

License:Open Source License

public 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   www . j  a  v  a  2  s .com*/
        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:divconq.web.Response.java

License:Open Source License

public void write(Channel ch) {
    if ((this.status != HttpResponseStatus.OK) && (this.body.getLength() == 0))
        this.body.write(this.status.toString());

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

    int clen = 0;
    this.body.setPosition(0);

    try {//from   ww  w . j  a v a  2 s  .c o  m
        clen = response.content().writeBytes(new InputWrapper(this.body), this.body.getLength());
    } catch (IOException e) {
    }

    response.headers().set(Names.CONTENT_TYPE, "text/plain; charset=UTF-8");

    if (this.keepAlive) {
        // Add 'Content-Length' header only for a keep-alive connection.
        response.headers().set(Names.CONTENT_LENGTH, clen);

        // Add keep alive header as per:
        // - http://www.w3.org/Protocols/HTTP/1.1/draft-ietf-http-v11-spec-01.html#Connection
        response.headers().set(Names.CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
    }

    // Encode the cookies
    for (Cookie c : this.cookies.values())
        response.headers().add(Names.SET_COOKIE, ServerCookieEncoder.encode(c));

    for (Entry<CharSequence, String> h : this.headers.entrySet())
        response.headers().set(h.getKey(), h.getValue());

    Hub.instance.getSecurityPolicy().hardenHttpResponse(response);

    // Write the response.
    ChannelFuture future = ch.writeAndFlush(response);

    // Close the non-keep-alive connection after the write operation is done.
    if (!this.keepAlive)
        future.addListener(ChannelFutureListener.CLOSE);

    /*  we do not need to sync - HTTP is one request, one response.  we would not pile messages on this channel
     * 
     *  furthermore, when doing an upload stream we can actually get locked up here because the "write" from our stream
     *  is locked on the write process of the data bus and the response to the session is locked on the write of the response
     *  here - but all the HTTP threads are busy with their respective uploads.  If they all use the same data bus session 
     *  then all HTTP threads can get blocked trying to stream upload if even one of those has called an "OK" to upload and
     *  is stuck here.  so be sure not to use sync with HTTP responses.  this won't be a problem under normal use.
     *   
    try {
     future.sync();
    } 
    catch (InterruptedException x) {
     // TODO should we close channel?
    }
    */
}

From source file:divconq.web.Response.java

License:Open Source License

public void writeEnd(Channel ch) {
    // Write the response.
    ChannelFuture future = ch.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);

    // Close the non-keep-alive connection after the write operation is done.
    if (!this.keepAlive)
        future.addListener(ChannelFutureListener.CLOSE);

    /*  we do not need to sync - HTTP is one request, one response.  we would not pile messages on this channel
     * //from   ww  w.  ja  v a  2  s .  co  m
     *  furthermore, when doing an upload stream we can actually get locked up here because the "write" from our stream
     *  is locked on the write process of the data bus and the response to the session is locked on the write of the response
     *  here - but all the HTTP threads are busy with their respective uploads.  If they all use the same data bus session 
     *  then all HTTP threads can get blocked trying to stream upload if even one of those has called an "OK" to upload and
     *  is stuck here.  so be sure not to use sync with HTTP responses.  this won't be a problem under normal use.
     *   
    try {
     future.sync();
    } 
    catch (InterruptedException x) {
     // TODO should we close channel?
    }
    */
}

From source file:divconq.web.Response.java

License:Open Source License

public void writeChunked(Channel ch) {
    // Build the response object.
    HttpResponse response = new DefaultHttpResponse(HttpVersion.HTTP_1_1, this.status);

    response.headers().set(Names.CONTENT_TYPE, "text/plain; charset=UTF-8");

    if (this.keepAlive) {
        // Add keep alive header as per:
        // - http://www.w3.org/Protocols/HTTP/1.1/draft-ietf-http-v11-spec-01.html#Connection
        response.headers().set(Names.CONNECTION, HttpHeaders.Values.KEEP_ALIVE);
    }//  w ww  .  j a v a 2 s .c  om

    // TODO add a customer header telling how many messages are in the session adaptor's queue - if > 0

    // Encode the cookies
    for (Cookie c : this.cookies.values())
        response.headers().add(Names.SET_COOKIE, ServerCookieEncoder.encode(c));

    for (Entry<CharSequence, String> h : this.headers.entrySet())
        response.headers().set(h.getKey(), h.getValue());

    response.headers().set(Names.TRANSFER_ENCODING, Values.CHUNKED);

    // Write the response.
    ChannelFuture future = ch.writeAndFlush(response);

    // Close the non-keep-alive connection after the write operation is done.
    if (!this.keepAlive)
        future.addListener(ChannelFutureListener.CLOSE);

    /*  we do not need to sync - HTTP is one request, one response.  we would not pile messages on this channel
    try {
     future.sync();
    } 
    catch (InterruptedException x) {
     // TODO should we close channel?
    }
    */
}

From source file:dpfmanager.shell.modules.server.get.HttpGetHandler.java

License:Open Source License

/**
 * Main functions/*w w w.  j av  a 2  s .co  m*/
 */

private void tractReadGet(ChannelHandlerContext ctx, String zipPath) {
    // Parse params
    String path = DPFManagerProperties.getReportsDir() + zipPath;
    if (!zipPath.endsWith(".zip")) {
        String hash = zipPath.substring(1, zipPath.length());
        StatusMessage sm = (StatusMessage) context.sendAndWaitResponse(BasicConfig.MODULE_DATABASE,
                new PostMessage(PostMessage.Type.ASK, hash));
        path = sm.getFolder().substring(0, sm.getFolder().length() - 1) + ".zip";
    }

    // Send the zip report
    File file = new File(path);
    if (file.exists()) {
        try {
            RandomAccessFile raf = new RandomAccessFile(file, "r");

            long fileLength = raf.length();

            HttpResponse response = new DefaultHttpResponse(HTTP_1_1, OK);
            HttpUtil.setContentLength(response, fileLength);
            setContentTypeHeader(response, file);
            setDateAndCacheHeaders(response, file);
            response.headers().remove(HttpHeaderNames.CONNECTION);

            // Write the initial line and the header.
            ctx.write(response);

            // Write the content.
            ChannelFuture lastContentFuture;
            if (ctx.pipeline().get(SslHandler.class) == null) {
                ctx.write(new DefaultFileRegion(raf.getChannel(), 0, fileLength), ctx.newProgressivePromise());
                // Write the end marker.
                lastContentFuture = ctx.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
            } else {
                lastContentFuture = ctx.writeAndFlush(
                        new HttpChunkedInput(new ChunkedFile(raf, 0, fileLength, 8192)),
                        ctx.newProgressivePromise());
            }

            // Delete the zip after download?
            lastContentFuture.addListener(new GenericFutureListener() {
                @Override
                public void operationComplete(Future future) throws Exception {
                    //            file.delete();
                }
            });
            // Decide whether to close the connection or not.
            if (!HttpUtil.isKeepAlive(request)) {
                lastContentFuture.addListener(ChannelFutureListener.CLOSE);
            }
        } catch (Exception ignore) {
            sendError(ctx, NOT_FOUND);
        }
    } else {
        // No exists
        sendError(ctx, NOT_FOUND);
    }
}

From source file:dpfmanager.shell.modules.server.get.HttpGetHandler.java

License:Open Source License

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

From source file:dpfmanager.shell.modules.server.post.HttpPostHandler.java

License:Open Source License

/**
 * Util functions/*  ww w . ja v a 2  s. c  om*/
 */

private void writeResponse(Channel channel) {
    // Convert the response content to a ChannelBuffer.
    ByteBuf buf = copiedBuffer(responseContent.toString(), CharsetUtil.UTF_8);
    responseContent.setLength(0);

    // Decide whether to close the connection or not.
    boolean close = request.headers().contains(HttpHeaderNames.CONNECTION, HttpHeaderValues.CLOSE, true)
            || request.protocolVersion().equals(HttpVersion.HTTP_1_0) && !request.headers()
                    .contains(HttpHeaderNames.CONNECTION, HttpHeaderValues.KEEP_ALIVE, true);

    // Build the response object.
    FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK, buf);
    response.headers().set(HttpHeaderNames.CONTENT_TYPE, "text/plain; charset=UTF-8");

    if (!close) {
        response.headers().setInt(HttpHeaderNames.CONTENT_LENGTH, buf.readableBytes());
    }

    // Extra headers
    response.headers().set(HttpHeaderNames.ACCESS_CONTROL_ALLOW_ORIGIN, "*");

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

From source file:eastwind.webpush.WebPushHandler.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.status().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(res.status().toString(), CharsetUtil.UTF_8);
        res.content().writeBytes(buf);/*from   w  ww  . j  a  va2 s  .com*/
        buf.release();
    }

    // Send the response and close the connection if necessary.
    res.headers().set(HttpHeaderNames.CONTENT_TYPE, "text/json; charset=UTF-8");
    res.headers().set(HttpHeaderNames.ACCESS_CONTROL_ALLOW_ORIGIN, "*");
    HttpUtil.setContentLength(res, res.content().readableBytes());
    ChannelFuture f = ctx.channel().writeAndFlush(res);
    if (!HttpUtil.isKeepAlive(req) || res.status().code() != 200) {
        f.addListener(ChannelFutureListener.CLOSE);
    }
}