Example usage for io.netty.buffer ByteBuf readBytes

Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf readBytes.

Prototype

public abstract int readBytes(GatheringByteChannel out, int length) throws IOException;

Source Link

Document

Transfers this buffer's data to the specified stream starting at the current readerIndex .

Usage

From source file:io.jafka.http.HttpServerHandler.java

License:Apache License

@Override
protected void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {
    if (msg instanceof HttpRequest) {
        HttpRequest request = this.request = (HttpRequest) msg;

        if (HttpHeaders.is100ContinueExpected(request)) {
            send100Continue(ctx);//from  w  w w  .  jav a  2 s.  com
        }
        body = new ByteArrayOutputStream(64);
        args = new HashMap<String, String>(4);
        //
        if (request.getMethod() != HttpMethod.POST) {
            sendStatusMessage(ctx, HttpResponseStatus.METHOD_NOT_ALLOWED, "POST METHOD REQUIRED");
            return;
        }
        HttpHeaders headers = request.headers();
        String contentType = headers.get("Content-Type");
        // ? text or octstream
        String key = headers.get("key");
        key = key != null ? key : headers.get("request_key");
        args.put("key", key);
        args.put("topic", headers.get("topic"));
        args.put("partition", headers.get("partition"));
    }

    if (msg instanceof HttpContent) {
        HttpContent httpContent = (HttpContent) msg;

        ByteBuf content = httpContent.content();
        if (content.isReadable()) {
            //body.write(content.array());
            content.readBytes(body, content.readableBytes());
            //body.append(content.toString(CharsetUtil.UTF_8));
        }

        if (msg instanceof LastHttpContent) {
            //process request
            if (server.handler != null) {
                server.handler.handle(args, body.toByteArray());
            }
            if (!writeResponse(ctx)) {
                // If keep-alive is off, close the connection once the content is fully written.
                ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
            }
            body = null;
            args = null;
        }
    }
}

From source file:io.lettuce.core.protocol.RedisStateMachine.java

License:Apache License

private ByteBuffer readLine(ByteBuf buffer) {

    ByteBuffer bytes = null;//from   w w w.j av a 2s.c o m
    int end = findLineEnd(buffer);

    if (end > -1) {
        int start = buffer.readerIndex();
        responseElementBuffer.clear();
        int size = end - start - 1;

        if (responseElementBuffer.capacity() < size) {
            responseElementBuffer.capacity(size);
        }

        buffer.readBytes(responseElementBuffer, size);

        bytes = responseElementBuffer.internalNioBuffer(0, size);

        buffer.readerIndex(end + 1);
        buffer.markReaderIndex();
    }
    return bytes;
}

From source file:io.lettuce.core.protocol.RedisStateMachine.java

License:Apache License

private ByteBuffer readBytes(ByteBuf buffer, int count) {

    ByteBuffer bytes = null;/*from  w  ww  .  j ava  2  s.c  om*/

    if (buffer.readableBytes() >= count) {
        responseElementBuffer.clear();

        int size = count - 2;

        if (responseElementBuffer.capacity() < size) {
            responseElementBuffer.capacity(size);
        }
        buffer.readBytes(responseElementBuffer, size);

        bytes = responseElementBuffer.internalNioBuffer(0, size);
        buffer.readerIndex(buffer.readerIndex() + 2);
    }
    return bytes;
}