Examples with NettyByteBufferFactory io.micronaut.buffer.netty.NettyByteBufferFactory used on opensource projects

Example 1 with NettyByteBufferFactory

use of io.micronaut.buffer.netty.NettyByteBufferFactory in project micronaut-core by micronaut-projects.

the class AbstractNettyWebSocketHandler method handleWebSocketFrame.

/**
 * Handles WebSocket frame request.
 *
 * @param ctx The context
 * @param msg The frame
 */
protected void handleWebSocketFrame(ChannelHandlerContext ctx, WebSocketFrame msg) {
    if (msg instanceof TextWebSocketFrame || msg instanceof BinaryWebSocketFrame || msg instanceof ContinuationWebSocketFrame) {
        if (messageHandler == null) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("WebSocket bean [" + webSocketBean.getTarget() + "] received message, but defined no @OnMessage handler. Dropping frame...");
            }
            writeCloseFrameAndTerminate(ctx, CloseReason.UNSUPPORTED_DATA);
        } else {
            ByteBuf msgContent = msg.content().retain();
            if (!msg.isFinalFragment()) {
                frameBuffer.updateAndGet((buffer) -> {
                    if (buffer == null) {
                        buffer = ctx.alloc().compositeBuffer();
                    }
                    buffer.addComponent(true, msgContent);
                    return buffer;
                });
                return;
            }
            ByteBuf content;
            CompositeByteBuf buffer = frameBuffer.getAndSet(null);
            if (buffer == null) {
                content = msgContent;
            } else {
                buffer.addComponent(true, msgContent);
                content = buffer;
            }
            Argument<?> bodyArgument = this.getBodyArgument();
            Optional<?> converted = ConversionService.SHARED.convert(content, bodyArgument);
            content.release();
            if (!converted.isPresent()) {
                MediaType mediaType;
                try {
                    mediaType = messageHandler.stringValue(Consumes.class).map(MediaType::of).orElse(MediaType.APPLICATION_JSON_TYPE);
                } catch (IllegalArgumentException e) {
                    exceptionCaught(ctx, e);
                    return;
                }
                try {
                    converted = mediaTypeCodecRegistry.findCodec(mediaType).map(codec -> codec.decode(bodyArgument, new NettyByteBufferFactory(ctx.alloc()).wrap(msg.content())));
                } catch (CodecException e) {
                    messageProcessingException(ctx, e);
                    return;
                }
            }
            if (converted.isPresent()) {
                Object v = converted.get();
                NettyWebSocketSession currentSession = getSession();
                ExecutableBinder<WebSocketState> executableBinder = new DefaultExecutableBinder<>(Collections.singletonMap(bodyArgument, v));
                try {
                    BoundExecutable boundExecutable = executableBinder.bind(messageHandler.getExecutableMethod(), webSocketBinder, new WebSocketState(currentSession, originatingRequest));
                    Object result = invokeExecutable(boundExecutable, messageHandler);
                    if (Publishers.isConvertibleToPublisher(result)) {
                        Flux<?> flowable = Flux.from(instrumentPublisher(ctx, result));
                        flowable.subscribe(o -> {
                        }, error -> messageProcessingException(ctx, error), () -> messageHandled(ctx, session, v));
                    } else {
                        messageHandled(ctx, session, v);
                    }
                } catch (Throwable e) {
                    messageProcessingException(ctx, e);
                }
            } else {
                writeCloseFrameAndTerminate(ctx, CloseReason.UNSUPPORTED_DATA.getCode(), CloseReason.UNSUPPORTED_DATA.getReason() + ": " + "Received data cannot be converted to target type: " + bodyArgument);
            }
        }
    } else if (msg instanceof PingWebSocketFrame) {
        // respond with pong
        PingWebSocketFrame frame = (PingWebSocketFrame) msg.retain();
        ctx.writeAndFlush(new PongWebSocketFrame(frame.content()));
    } else if (msg instanceof PongWebSocketFrame) {
        if (pongHandler != null) {
            ByteBuf content = msg.content();
            WebSocketPongMessage message = new WebSocketPongMessage(NettyByteBufferFactory.DEFAULT.wrap(content));
            NettyWebSocketSession currentSession = getSession();
            ExecutableBinder<WebSocketState> executableBinder = new DefaultExecutableBinder<>(Collections.singletonMap(getPongArgument(), message));
            try {
                BoundExecutable boundExecutable = executableBinder.bind(pongHandler.getExecutableMethod(), webSocketBinder, new WebSocketState(currentSession, originatingRequest));
                Object result = invokeExecutable(boundExecutable, pongHandler);
                if (Publishers.isConvertibleToPublisher(result)) {
                    // delay the buffer release until the publisher has completed
                    content.retain();
                    Flux<?> flowable = Flux.from(instrumentPublisher(ctx, result));
                    flowable.subscribe(o -> {
                    }, error -> {
                        if (LOG.isErrorEnabled()) {
                            LOG.error("Error Processing WebSocket Pong Message [" + webSocketBean + "]: " + error.getMessage(), error);
                        }
                        exceptionCaught(ctx, error);
                    }, content::release);
                }
            } catch (Throwable e) {
                if (LOG.isErrorEnabled()) {
                    LOG.error("Error Processing WebSocket Message [" + webSocketBean + "]: " + e.getMessage(), e);
                }
                exceptionCaught(ctx, e);
            }
        }
    } else if (msg instanceof CloseWebSocketFrame) {
        CloseWebSocketFrame cwsf = (CloseWebSocketFrame) msg;
        handleCloseFrame(ctx, cwsf);
    } else {
        writeCloseFrameAndTerminate(ctx, CloseReason.UNSUPPORTED_DATA);
    }
}

Example 2 with NettyByteBufferFactory

use of io.micronaut.buffer.netty.NettyByteBufferFactory in project micronaut-core by micronaut-projects.

the class RoutingInBoundHandler method mapToHttpContent.

private Flux<HttpContent> mapToHttpContent(NettyHttpRequest<?> request, MutableHttpResponse<?> response, Object body, ChannelHandlerContext context) {
    final RouteInfo<?> routeInfo = response.getAttribute(HttpAttributes.ROUTE_INFO, RouteInfo.class).orElse(null);
    final boolean hasRouteInfo = routeInfo != null;
    MediaType mediaType = response.getContentType().orElse(null);
    if (mediaType == null && hasRouteInfo) {
        mediaType = routeExecutor.resolveDefaultResponseContentType(request, routeInfo);
    }
    boolean isJson = mediaType != null && mediaType.getExtension().equals(MediaType.EXTENSION_JSON) && isJsonFormattable(hasRouteInfo ? routeInfo.getBodyType() : null);
    NettyByteBufferFactory byteBufferFactory = new NettyByteBufferFactory(context.alloc());
    Flux<Object> bodyPublisher = Flux.from(Publishers.convertPublisher(body, Publisher.class));
    MediaType finalMediaType = mediaType;
    Flux<HttpContent> httpContentPublisher = bodyPublisher.map(message -> {
        HttpContent httpContent;
        if (message instanceof ByteBuf) {
            httpContent = new DefaultHttpContent((ByteBuf) message);
        } else if (message instanceof ByteBuffer) {
            ByteBuffer<?> byteBuffer = (ByteBuffer<?>) message;
            Object nativeBuffer = byteBuffer.asNativeBuffer();
            if (nativeBuffer instanceof ByteBuf) {
                httpContent = new DefaultHttpContent((ByteBuf) nativeBuffer);
            } else {
                httpContent = new DefaultHttpContent(Unpooled.copiedBuffer(byteBuffer.asNioBuffer()));
            }
        } else if (message instanceof byte[]) {
            httpContent = new DefaultHttpContent(Unpooled.copiedBuffer((byte[]) message));
        } else if (message instanceof HttpContent) {
            httpContent = (HttpContent) message;
        } else {
            MediaTypeCodec codec = mediaTypeCodecRegistry.findCodec(finalMediaType, message.getClass()).orElse(new TextPlainCodec(serverConfiguration.getDefaultCharset()));
            if (LOG.isTraceEnabled()) {
                LOG.trace("Encoding emitted response object [{}] using codec: {}", message, codec);
            }
            ByteBuffer<ByteBuf> encoded;
            if (hasRouteInfo) {
                // noinspection unchecked
                final Argument<Object> bodyType = (Argument<Object>) routeInfo.getBodyType();
                if (bodyType.isInstance(message)) {
                    encoded = codec.encode(bodyType, message, byteBufferFactory);
                } else {
                    encoded = codec.encode(message, byteBufferFactory);
                }
            } else {
                encoded = codec.encode(message, byteBufferFactory);
            }
            httpContent = new DefaultHttpContent(encoded.asNativeBuffer());
        }
        return httpContent;
    });
    if (isJson) {
        // if the Publisher is returning JSON then in order for it to be valid JSON for each emitted element
        // we must wrap the JSON in array and delimit the emitted items
        httpContentPublisher = JsonSubscriber.lift(httpContentPublisher);
    }
    httpContentPublisher = httpContentPublisher.contextWrite(reactorContext -> reactorContext.put(ServerRequestContext.KEY, request)).doOnNext(httpContent -> context.read()).doAfterTerminate(() -> cleanupRequest(context, request));
    return httpContentPublisher;
}