HttpQueryRequestHandler.java 文件源码

@Override
protected void channelRead0(ChannelHandlerContext ctx, QueryRequest msg) throws Exception {
    byte[] buf;
    try {
        buf = JsonUtil.getObjectMapper().writeValueAsBytes(dataStore.query(msg));
    } catch (TimelyException e) {
        if (e.getMessage().contains("No matching tags")) {
            LOG.trace(e.getMessage());
        } else {
            LOG.error(e.getMessage(), e);
        }
        this.sendHttpError(ctx, e);
        return;
    }
    FullHttpResponse response = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK,
            Unpooled.copiedBuffer(buf));
    response.headers().set(Names.CONTENT_TYPE, Constants.JSON_TYPE);
    response.headers().set(Names.CONTENT_LENGTH, response.content().readableBytes());
    sendResponse(ctx, response);
}