Examples with DefaultPromise io.netty.util.concurrent.DefaultPromise used on opensource projects

Example 6 with DefaultPromise

use of io.netty.util.concurrent.DefaultPromise in project openzaly by akaxincom.

the class NettyClient2 method sendRedisCommand.

public Future<IRedisCommandResponse> sendRedisCommand(final RedisCommand redisCommand) {
    final Future<IRedisCommandResponse> responseFuture;
    // channelPromise.channel().isActive());
    if (channelPromise != null) {
        final ChannelPromise readyPromise = this.channelPromise;
        final DefaultPromise<IRedisCommandResponse> responsePromise = new DefaultPromise<IRedisCommandResponse>(readyPromise.channel().eventLoop());
        // 提交一个事件
        readyPromise.channel().eventLoop().submit(new Runnable() {

            @Override
            public void run() {
                // 将这个结果赋值给responsePromise
                NettyClient2.this.responsePromise = responsePromise;
            }
        });
        readyPromise.channel().writeAndFlush(redisCommand).addListener(new GenericFutureListener<ChannelFuture>() {

            @Override
            public void operationComplete(final ChannelFuture future) throws Exception {
                if (!future.isSuccess()) {
                    // 如果失败了，直接将promise返回
                    responsePromise.tryFailure(future.cause());
                    logger.error("send push message error: {},cause={}", redisCommand, future.cause());
                } else {
                // logger.info("write data to platform success");
                }
            }
        });
        responseFuture = responsePromise;
    } else {
        logger.error("send push error because client is not connected: {}", redisCommand.toString());
        responseFuture = new FailedFuture<IRedisCommandResponse>(GlobalEventExecutor.INSTANCE, CONNECT_EXCEPTION);
    }
    return responseFuture;
}