/**
 * 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.activemq.broker.jmx;

import java.util.List;

import javax.jms.BytesMessage;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.DeliveryMode;
import javax.jms.MessageProducer;
import javax.jms.Session;
import javax.management.MBeanServer;
import javax.management.MBeanServerInvocationHandler;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.EmbeddedBrokerTestSupport;
import org.apache.activemq.broker.BrokerService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class HealthViewMBeanTest extends EmbeddedBrokerTestSupport {

   private static final Logger LOG = LoggerFactory.getLogger(MBeanTest.class);
   protected MBeanServer mbeanServer;
   protected String domain = "org.apache.activemq";

   @Override
   protected void setUp() throws Exception {
      bindAddress = "tcp://localhost:0";
      useTopic = false;
      super.setUp();
      mbeanServer = broker.getManagementContext().getMBeanServer();
   }

   @Override
   protected void tearDown() throws Exception {
      super.tearDown();
   }

   @Override
   protected ConnectionFactory createConnectionFactory() throws Exception {
      return new ActiveMQConnectionFactory(broker.getTransportConnectors().get(0).getPublishableConnectString());
   }

   @Override
   protected BrokerService createBroker() throws Exception {
      BrokerService answer = new BrokerService();
      answer.setPersistent(true);
      answer.setDeleteAllMessagesOnStartup(true);
      answer.getSystemUsage().getMemoryUsage().setLimit(1024 * 1024 * 64);
      answer.getSystemUsage().getTempUsage().setLimit(1024 * 1024 * 64);
      answer.getSystemUsage().getStoreUsage().setLimit(1024 * 1024 * 64);
      answer.setUseJmx(true);
      answer.setSchedulerSupport(true);

      // allow options to be visible via jmx

      answer.addConnector(bindAddress);
      return answer;
   }

   public void testHealthView() throws Exception {
      Connection connection = connectionFactory.createConnection();

      connection.start();
      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
      destination = createDestination();
      MessageProducer producer = session.createProducer(destination);
      producer.setDeliveryMode(DeliveryMode.NON_PERSISTENT);

      for (int i = 0; i < 60; i++) {
         BytesMessage message = session.createBytesMessage();
         message.writeBytes(new byte[1024 * 1024]);
         producer.send(message);
      }

      Thread.sleep(1000);

      String objectNameStr = broker.getBrokerObjectName().toString();
      objectNameStr += ",service=Health";
      ObjectName brokerName = assertRegisteredObjectName(objectNameStr);
      HealthViewMBean health = MBeanServerInvocationHandler.newProxyInstance(mbeanServer, brokerName, HealthViewMBean.class, true);
      List<HealthStatus> list = health.healthList();

      for (HealthStatus status : list) {
         LOG.info("Health status: {}", status);
      }

      assertEquals(2, list.size());
   }

   protected ObjectName assertRegisteredObjectName(String name) throws MalformedObjectNameException, NullPointerException {
      ObjectName objectName = new ObjectName(name);
      if (mbeanServer.isRegistered(objectName)) {
         LOG.info("Bean Registered: " + objectName);
      }
      else {
         fail("Could not find MBean!: " + objectName);
      }
      return objectName;
   }
}
