Example usage for io.netty.util Attribute get

Introduction

In this page you can find the example usage for io.netty.util Attribute get.

Prototype

T get();

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Document

Returns the current value, which may be null

Usage

From source file:qunar.tc.qmq.util.ChannelUtil.java

License:Apache License

public static boolean setAttributeIfAbsent(Channel channel, Object o) {
    synchronized (channel) {
        Attribute<Object> attr = channel.attr(DEFAULT_ATTRIBUTE);
        if (attr == null || attr.get() == null) {
            channel.attr(DEFAULT_ATTRIBUTE).set(o);
            return true;
        }//w  ww  .  j av  a 2  s . c o m
        return false;
    }
}

From source file:sailfish.remoting.channel.HighPerformanceChannelWriter.java

License:Apache License

private static HighPerformanceChannelWriter getWriter(Channel channel) {
    Attribute<HighPerformanceChannelWriter> attr = channel.attr(ChannelAttrKeys.highPerformanceWriter);
    HighPerformanceChannelWriter writer = attr.get();
    if (null == writer) {
        HighPerformanceChannelWriter old = attr.setIfAbsent(writer = new HighPerformanceChannelWriter(channel));
        if (null != old) {
            writer = old;/*from  ww w .  j a v a 2s  .co m*/
        }
    }
    return writer;
}

From source file:sailfish.remoting.utils.ChannelUtil.java

License:Apache License

public static boolean clientSide(ChannelHandlerContext ctx) {
    Attribute<Boolean> clientSideAttr = ctx.channel().attr(ChannelAttrKeys.clientSide);
    return (null != clientSideAttr && null != clientSideAttr.get() && clientSideAttr.get());
}