aeron-driver/src/main/java/io/aeron/driver/status/StatusUtil.java
public static StatusIndicatorReader receiveChannelStatus(final CountersReader countersReader, final String channel)
    {
        StatusIndicatorReader statusReader = null;
        final MutableInteger id = new MutableInteger(-1);

        countersReader.forEach(
            (counterId, typeId, keyBuffer, label) ->
            {
                if (typeId == ReceiveChannelStatus.RECEIVE_CHANNEL_STATUS_TYPE_ID)
                {
                    if (channel.startsWith(keyBuffer.getStringAscii(ChannelEndpointStatus.CHANNEL_OFFSET)))
                    {
                        id.value = counterId;
                    }
                }
            });

        if (Aeron.NULL_VALUE != id.value)
        {
            statusReader = new UnsafeBufferStatusIndicator(countersReader.valuesBuffer(), id.value);
        }

        return statusReader;
    }
public static StatusIndicatorReader receiveChannelStatus(final CountersReader countersReader, final String channel)
    {
        StatusIndicatorReader statusReader = null;
        final MutableInteger id = new MutableInteger(-1);

        countersReader.forEach(
            (counterId, typeId, keyBuffer, label) ->
            {
                if (typeId == ReceiveChannelStatus.RECEIVE_CHANNEL_STATUS_TYPE_ID)
                {
                    if (channel.startsWith(keyBuffer.getStringAscii(ChannelEndpointStatus.CHANNEL_OFFSET)))
                    {
                        id.value = counterId;
                    }
                }
            });

        if (Aeron.NULL_VALUE != id.value)
        {
            statusReader = new UnsafeBufferStatusIndicator(countersReader.valuesBuffer(), id.value);
        }

        return statusReader;
    }
Return the read-only status indicator for the given receive channel URI.

@param countersReader that holds the status indicator.
@param channel        for the receive channel.
@return read-only status indicator that can be used to query the status of the receive channel or null.
@see ChannelEndpointStatus for status values and indications.