public ChannelPipeline getPipeline() throws Exception {
CrudConnectionStatistics connectionStatistics = allConnectionStatistics.get(connectionNum);
CrudOperations crudOperations = allCrudOperations.get(connectionNum);
connectionNum++;
return Channels.pipeline(
new HttpClientCodec(),
// new HttpContentDecompressor(),
new CrudHandler(connectionStatistics, crudOperations, crudPath, countDownLatch)
);
}