private void consumeMessages() {
while (true) {
QueueingConsumer.Delivery delivery;
try {
delivery = consumer.nextDelivery();
final String message = new String(delivery.getBody());
runOnUiThread(
new Runnable() {
public void run() {
Toast.makeText(ReceiveActivity.this, message, Toast.LENGTH_LONG).show();
}
});
channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
} catch (ShutdownSignalException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (ConsumerCancelledException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
/** {@inheritDoc} */
@Override
public SampleResult sample(Entry entry) {
SampleResult result = new SampleResult();
result.setSampleLabel(getName());
result.setSuccessful(false);
result.setResponseCode("500");
QueueingConsumer consumer;
String consumerTag;
trace("AMQPConsumer.sample()");
try {
initChannel();
consumer = new QueueingConsumer(channel);
channel.basicQos(1); // TODO: make prefetchCount configurable?
consumerTag = channel.basicConsume(getQueue(), autoAck(), consumer);
} catch (IOException ex) {
log.error("Failed to initialize channel", ex);
return result;
}
result.setSampleLabel(getTitle());
/*
* Perform the sampling
*/
result.sampleStart(); // Start timing
try {
QueueingConsumer.Delivery delivery = consumer.nextDelivery(getReceiveTimeoutAsInt());
if (delivery == null) {
log.warn("nextDelivery timed out");
return result;
}
/*
* Set up the sample result details
*/
result.setSamplerData(new String(delivery.getBody()));
result.setResponseData("OK", null);
result.setDataType(SampleResult.TEXT);
result.setResponseCodeOK();
result.setResponseMessage("OK");
result.setSuccessful(true);
if (!autoAck()) channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
} catch (ShutdownSignalException e) {
log.warn("AMQP consumer failed to consume", e);
result.setResponseCode("400");
result.setResponseMessage(e.toString());
interrupt();
} catch (ConsumerCancelledException e) {
log.warn("AMQP consumer failed to consume", e);
result.setResponseCode("300");
result.setResponseMessage(e.toString());
interrupt();
} catch (InterruptedException e) {
log.info("interuppted while attempting to consume");
result.setResponseCode("200");
result.setResponseMessage(e.toString());
} catch (IOException e) {
log.warn("AMQP consumer failed to consume", e);
result.setResponseCode("100");
result.setResponseMessage(e.toString());
} finally {
try {
channel.basicCancel(consumerTag);
} catch (IOException e) {
log.error("Couldn't safely cancel the sample's consumer", e);
}
}
result.sampleEnd(); // End timimg
trace("AMQPConsumer.sample ended");
return result;
}