/*
   
     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
   
        https://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.commons.dbcp2.managed;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.lang.reflect.InvocationHandler;
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  import java.lang.reflect.Proxy;
  import java.sql.Connection;
  import java.sql.SQLException;
  import java.util.concurrent.atomic.AtomicInteger;
  
  import javax.sql.XAConnection;
  import javax.sql.XADataSource;
  
  import org.apache.commons.dbcp2.TestBasicDataSource;
  import org.apache.geronimo.transaction.manager.TransactionManagerImpl;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  /**
   * TestSuite for BasicManagedDataSource when using a
   * DataSourceXAConnectionFactory (configured from a XADataSource)
   */
  public class TestDataSourceXAConnectionFactory extends TestBasicDataSource {
  
      /**
       * Delegates everything to the BasicDataSource (ds field), except for
       * getXAConnection which creates a BasicXAConnection.
       */
      public final class XADataSourceHandle implements InvocationHandler {
  
          protected XAConnection getXAConnection() throws SQLException {
              return new TesterBasicXAConnection(ds.getConnection(), closeCounter);
          }
  
          @Override
          public Object invoke(final Object proxy, final Method method, final Object[] args)
                  throws Throwable {
              final String methodName = method.getName();
              switch (methodName) {
              case "hashCode":
                  return System.identityHashCode(proxy);
              case "equals":
                  return proxy == args[0];
              case "getXAConnection":
                  // both zero and 2-arg signatures
                  return getXAConnection();
              default:
                  break;
              }
              try {
                  return method.invoke(ds, args);
              } catch (final InvocationTargetException e) {
                  throw e.getTargetException();
              }
          }
      }
  
      protected BasicManagedDataSource bmds;
  
      public final AtomicInteger closeCounter = new AtomicInteger();
  
      @Override
      @BeforeEach
      public void setUp() throws Exception {
          super.setUp();
          bmds = new BasicManagedDataSource();
          bmds.setTransactionManager(new TransactionManagerImpl());
          bmds.setXADataSource("notnull");
          final XADataSourceHandle handle = new XADataSourceHandle();
          final XADataSource xads = (XADataSource) Proxy.newProxyInstance(
                  XADataSourceHandle.class.getClassLoader(),
                  new Class[] { XADataSource.class }, handle);
          bmds.setXaDataSourceInstance(xads);
      }
  
      /**
       * JIRA: DBCP-355
       */
      @Test
      void testPhysicalClose() throws Exception {
         bmds.setMaxIdle(1);
         final Connection conn1 = bmds.getConnection();
         final Connection conn2 = bmds.getConnection();
         closeCounter.set(0);
         conn1.close();
         assertEquals(0, closeCounter.get()); // stays idle in the pool
         conn2.close();
         assertEquals(1, closeCounter.get()); // can't have 2 idle ones
         bmds.close();
         assertEquals(2, closeCounter.get());
     }
 
 }