| /* |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.qpid.server.subscription; |
| |
| import org.apache.qpid.AMQException; |
| import org.apache.qpid.framing.AMQShortString; |
| import org.apache.qpid.server.protocol.InternalTestProtocolSession; |
| import org.apache.qpid.server.util.InternalBrokerBaseCase; |
| |
| import java.util.List; |
| |
| public class QueueBrowserUsesNoAckTest extends InternalBrokerBaseCase |
| { |
| |
| public void testQueueBrowserUsesNoAck() throws AMQException |
| { |
| int sendMessageCount = 2; |
| int prefetch = 1; |
| |
| //Check store is empty |
| checkStoreContents(0); |
| |
| //Send required messsages to the queue |
| publishMessages(getSession(), getChannel(), sendMessageCount); |
| |
| //Ensure they are stored |
| checkStoreContents(sendMessageCount); |
| |
| //Check that there are no unacked messages |
| assertEquals("Channel should have no unacked msgs ", 0, |
| getChannel().getUnacknowledgedMessageMap().size()); |
| |
| //Set the prefetch on the session to be less than the sent messages |
| getChannel().setCredit(0, prefetch); |
| |
| //browse the queue |
| AMQShortString browser = browse(getChannel(), getQueue()); |
| |
| getQueue().deliverAsync(); |
| |
| //Wait for messages to fill the prefetch |
| getSession().awaitDelivery(prefetch); |
| |
| //Get those messages |
| List<InternalTestProtocolSession.DeliveryPair> messages = |
| getSession().getDelivers(getChannel().getChannelId(), browser, |
| prefetch); |
| |
| //Ensure we recevied the prefetched messages |
| assertEquals(prefetch, messages.size()); |
| |
| //Check the process didn't suspend the subscription as this would |
| // indicate we are using the prefetch credit. i.e. using acks not No-Ack |
| assertTrue("The subscription has been suspended", |
| !getChannel().getSubscription(browser).getState() |
| .equals(Subscription.State.SUSPENDED)); |
| } |
| |
| } |