DbRestartJDBCQueueMasterSlaveLeaseQuiesceTest.java

/**
 * 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.
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package org.apache.activemq.broker.ft;

import java.util.concurrent.TimeUnit;

import org.apache.activemq.ActiveMQConnection;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.util.LeaseLockerIOExceptionHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class DbRestartJDBCQueueMasterSlaveLeaseQuiesceTest extends DbRestartJDBCQueueMasterSlaveLeaseTest {

   private static final transient Logger LOG = LoggerFactory.getLogger(DbRestartJDBCQueueMasterSlaveLeaseQuiesceTest.class);

   private long restartDelay = 2000;

   @Override
   protected void configureBroker(BrokerService brokerService) {
      // master and slave survive db restart and retain master/slave status
      LeaseLockerIOExceptionHandler stopConnectors = new LeaseLockerIOExceptionHandler();
      brokerService.setIoExceptionHandler(stopConnectors);
   }

   @Override
   protected void delayTillRestartRequired() {
      if (restartDelay > 2000) {
         LOG.info("delay for more than lease quantum. While Db is offline, master should stay alive but could loose lease");
      } else {
         LOG.info("delay for less than lease quantum. While Db is offline, master should stay alive");
      }
      try {
         TimeUnit.MILLISECONDS.sleep(restartDelay);
      } catch (InterruptedException e) {
         e.printStackTrace();
      }
   }

   @Override
   protected void verifyExpectedBroker(int inflightMessageCount) {
      if (inflightMessageCount == 0 || (inflightMessageCount == failureCount + 10 && restartDelay <= 500)) {
         assertEquals("connected to master", master.getBrokerName(), ((ActiveMQConnection) sendConnection).getBrokerName());
      } else {
         // lease expired while DB was offline, either or master/slave can grab it so assert is not deterministic
         // but we still need to validate sent == received
      }
   }

   @Override
   public void setUp() throws Exception {
      restartDelay = 2000;
      super.setUp();
   }

   public void testSendReceiveWithLeaseExpiry() throws Exception {
      restartDelay = 10000;
      testSendReceive();
   }

   // ignore this test case
   @Override
   public void testAdvisory() throws Exception {
   }

   @Override
   public void testSendReceive() throws Exception {
      // Ignore this test for now, see AMQ-4975
   }
}