content: /**
   * 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.transport.mqtt;
  
  import static org.junit.Assert.fail;
  
  import java.util.Arrays;
  import java.util.Collection;
  
  import org.fusesource.mqtt.client.BlockingConnection;
  import org.fusesource.mqtt.client.MQTT;
  import org.fusesource.mqtt.client.QoS;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.Parameterized;
  import org.junit.runners.Parameterized.Parameters;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Test that the maxFrameSize configuration value is applied across the transports.
   */
  @RunWith(Parameterized.class)
  public class MQTTMaxFrameSizeTest extends MQTTTestSupport {
  
      private static final Logger LOG = LoggerFactory.getLogger(MQTTMaxFrameSizeTest.class);
  
      private final int maxFrameSize;
  
      @Parameters(name="{0}")
      public static Collection<Object[]> data() {
          return Arrays.asList(new Object[][] {
                  { "mqtt", false, 1024 },
                  { "mqtt+ssl", true, 1024 },
                  { "mqtt+nio", false, 1024 },
                  { "mqtt+nio+ssl", true, 1024 }
              });
      }
  
      public MQTTMaxFrameSizeTest(String connectorScheme, boolean useSSL, int maxFrameSize) {
          super(connectorScheme, useSSL);
  
          this.maxFrameSize = maxFrameSize;
      }
  
      @Override
      public String getProtocolConfig() {
          return "?wireFormat.maxFrameSize=" + maxFrameSize;
      }
  
      @Test(timeout = 30000)
      public void testFrameSizeToLargeClosesConnection() throws Exception {
  
          LOG.debug("Starting test on connector {} for frame size: {}", getProtocolScheme(), maxFrameSize);
  
          MQTT mqtt = createMQTTConnection();
          mqtt.setClientId(getTestName());
          mqtt.setKeepAlive((short) 10);
          mqtt.setVersion("3.1.1");
  
          BlockingConnection connection = mqtt.blockingConnection();
          connection.connect();
  
          final int payloadSize = maxFrameSize + 100;
  
          byte[] payload = new byte[payloadSize];
          for (int i = 0; i < payloadSize; ++i) {
              payload[i] = 42;
          }
  
          try {
              connection.publish(getTopicName(), payload, QoS.AT_LEAST_ONCE, false);
              fail("should have thrown an exception");
          } catch (Exception ex) {
          } finally {
              connection.disconnect();
          }
      }
  
      @Test(timeout = 30000)
      public void testFrameSizeNotExceededWorks() throws Exception {
  
          LOG.debug("Starting test on connector {} for frame size: {}", getProtocolScheme(), maxFrameSize);
  
          MQTT mqtt = createMQTTConnection();
          mqtt.setClientId(getTestName());
          mqtt.setKeepAlive((short) 10);
          mqtt.setVersion("3.1.1");
  
          BlockingConnection connection = mqtt.blockingConnection();
          connection.connect();
  
          final int payloadSize = maxFrameSize / 2;
  
          byte[] payload = new byte[payloadSize];
          for (int i = 0; i < payloadSize; ++i) {
              payload[i] = 42;
          }
  
          try {
              connection.publish(getTopicName(), payload, QoS.AT_LEAST_ONCE, false);
          } catch (Exception ex) {
              fail("should not have thrown an exception");
          } finally {
              connection.disconnect();
          }
      }
  }
  