final boolean multiple = (Boolean) parameters[1];
final String consumer = (String) parameters[2];
final Channel channel = AmqpOperationFactory.this.amqpDriver.getChannel (consumer);
if (channel != null) {
try {
channel.basicAck (delivery, multiple);
succeeded = true;
} catch (final IOException e) {
AmqpOperationFactory.this.exceptions.traceIgnoredException (e);
}
}