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   * 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.artemis.tests.integration.plugin;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import javax.transaction.xa.XAResource;
  import javax.transaction.xa.Xid;
  import java.nio.charset.StandardCharsets;
  import java.util.Arrays;
  import java.util.HashMap;
  import java.util.Map;
  import java.util.concurrent.ConcurrentHashMap;
  import java.util.concurrent.ConcurrentMap;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.TimeUnit;
  
  import org.apache.activemq.artemis.api.core.ActiveMQException;
  import org.apache.activemq.artemis.api.core.client.ClientSession;
  import org.apache.activemq.artemis.api.core.client.ClientSessionFactory;
  import org.apache.activemq.artemis.api.core.client.ServerLocator;
  import org.apache.activemq.artemis.core.config.Configuration;
  import org.apache.activemq.artemis.core.server.ActiveMQServer;
  import org.apache.activemq.artemis.core.server.plugin.ActiveMQServerResourcePlugin;
  import org.apache.activemq.artemis.core.settings.impl.AddressSettings;
  import org.apache.activemq.artemis.core.transaction.Transaction;
  import org.apache.activemq.artemis.core.transaction.impl.XidImpl;
  import org.apache.activemq.artemis.spi.core.protocol.RemotingConnection;
  import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
  import org.apache.activemq.artemis.utils.UUIDGenerator;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import java.lang.invoke.MethodHandles;
  
  public class ResourceBrokerPluginTest extends ActiveMQTestBase {
     private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
     private final Map<String, AddressSettings> addressSettings = new HashMap<>();
  
     private ActiveMQServer server;
  
     private ClientSession clientSession;
  
     private ClientSessionFactory sessionFactory;
  
     private Configuration configuration;
  
     private ServerLocator locator;
  
     @Override
     @BeforeEach
     public void setUp() throws Exception {
        super.setUp();
  
        addressSettings.clear();
  
        configuration = createDefaultNettyConfig();
  
        server = createServer(true, configuration, -1, -1, addressSettings);
  
        // start the server
        server.start();
  
        locator = createNettyNonHALocator();
        sessionFactory = createSessionFactory(locator);
  
        clientSession = addClientSession(sessionFactory.createSession(true, false, false));
     }
  
     @Test
     public void testXATransaction() throws Exception {
        final CountDownLatch latch = new CountDownLatch(4);
        final Xid clientXid = new XidImpl("XA_TEST".getBytes(), 1, UUIDGenerator.getInstance().generateStringUUID().getBytes());
  
        server.registerBrokerPlugin(new ActiveMQServerResourcePlugin() {
           @Override
           public void beforePutTransaction(Xid xid,
                                            Transaction tx,
                                            RemotingConnection remotingConnection) throws ActiveMQException {
              assertEquals(clientXid, xid);
              latch.countDown();
           }
  
           @Override
           public void afterPutTransaction(Xid xid,
                                           Transaction tx,
                                           RemotingConnection remotingConnection) throws ActiveMQException {
              assertEquals(clientXid, xid);
              latch.countDown();
           }
  
           @Override
           public void beforeRemoveTransaction(Xid xid, RemotingConnection remotingConnection) throws ActiveMQException {
              assertEquals(clientXid, xid);
              latch.countDown();
           }
  
           @Override
           public void afterRemoveTransaction(Xid xid, RemotingConnection remotingConnection) throws ActiveMQException {
              assertEquals(clientXid, xid);
              latch.countDown();
           }
        });
  
        clientSession.start(clientXid, XAResource.TMNOFLAGS);
        clientSession.end(clientXid, XAResource.TMSUCCESS);
        clientSession.commit(clientXid, true);
        assertTrue(latch.await(100, TimeUnit.MILLISECONDS));
     }
  
     @Test
     public void testXAClientsMisconfiguration() throws Exception {
        // https://github.com/jbosstm/narayana/blob/5.10.5.Final/ArjunaCore/arjuna/classes/com/arjuna/ats/internal/arjuna/FormatConstants.java#L30
        final int JTA_FORMAT_ID = 131077;
        final CountDownLatch latch = new CountDownLatch(1);
        ClientSessionFactory sessionFactoryEx = createSessionFactory(locator);
        ClientSession clientSessionEx = sessionFactoryEx.createSession(true, false, false);
  
        server.registerBrokerPlugin(new ActiveMQServerResourcePlugin() {
           private final ConcurrentMap<String, String> clients = new ConcurrentHashMap<>();
  
           @Override
           public void afterPutTransaction(Xid xid,
                                           Transaction tx,
                                           RemotingConnection remotingConnection) throws ActiveMQException {
              if (xid.getFormatId() == JTA_FORMAT_ID) {
                 // https://github.com/jbosstm/narayana/blob/5.10.5.Final/ArjunaJTA/jta/classes/com/arjuna/ats/jta/xa/XATxConverter.java#L188
                 String nodeName = new String(Arrays.copyOfRange(xid.getGlobalTransactionId(), 28, xid.getGlobalTransactionId().length), StandardCharsets.UTF_8);
  
                 String clientAddress = clients.putIfAbsent(nodeName, remotingConnection.getRemoteAddress());
  
                 if (clientAddress != null && !clientAddress.equals(remotingConnection.getRemoteAddress())) {
                    latch.countDown();
  
                    logger.warn("Possible XA client misconfiguration. Two addresses with the same node name {}: {}/{}",
                                   nodeName, clientAddress, remotingConnection.getRemoteAddress());
                 }
              }
           }
        });
  
        Xid xid = new XidImpl("XA_TEST".getBytes(), JTA_FORMAT_ID, UUIDGenerator.getInstance().generateStringUUID().getBytes());
        clientSession.start(xid, XAResource.TMNOFLAGS);
  
        byte[] getGlobalTransactionIdEx = xid.getGlobalTransactionId().clone();
        getGlobalTransactionIdEx[0] = (byte)(getGlobalTransactionIdEx[0] + 1);
        Xid xidEx = new XidImpl(xid.getBranchQualifier(), JTA_FORMAT_ID, getGlobalTransactionIdEx);
        clientSessionEx.start(xidEx, XAResource.TMNOFLAGS);
  
        assertTrue(latch.await(100, TimeUnit.MILLISECONDS));
     }
  }
  