Example usage for io.netty.channel ChannelPromise setSuccess

List of usage examples for io.netty.channel ChannelPromise setSuccess

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Introduction

In this page you can find the example usage for io.netty.channel ChannelPromise setSuccess.

Prototype

ChannelPromise setSuccess();

Source Link

Usage

From source file:tp.MyJZLibEncoder.java

private ChannelFuture finishEncode(final ChannelHandlerContext ctx, ChannelPromise promise) {
    if (!finished.compareAndSet(false, true)) {
        promise.setSuccess();
        return promise;
    }/*from   w  ww  .j  a  v  a 2s .co  m*/

    ByteBuf footer = ctx.alloc().buffer();
    synchronized (deflater) {
        deflater.finish();
        while (!deflater.finished()) {
            int numBytes = deflater.deflate(encodeBuf, 0, encodeBuf.length);
            footer.writeBytes(encodeBuf, 0, numBytes);
        }
        if (gzip) {
            int crcValue = (int) crc.getValue();
            int uncBytes = deflater.getTotalIn();
            footer.writeByte(crcValue);
            footer.writeByte(crcValue >>> 8);
            footer.writeByte(crcValue >>> 16);
            footer.writeByte(crcValue >>> 24);
            footer.writeByte(uncBytes);
            footer.writeByte(uncBytes >>> 8);
            footer.writeByte(uncBytes >>> 16);
            footer.writeByte(uncBytes >>> 24);
        }
        deflater.end();
    }

    return ctx.writeAndFlush(footer, promise);
}