package org.apache.maven.surefire.junitcore;
   
   /*
    * 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.
   */
  
  import java.util.Collection;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  import java.util.concurrent.ConcurrentHashMap;
  
  import org.apache.maven.surefire.booter.Command;
  import org.apache.maven.surefire.booter.MasterProcessListener;
  import org.apache.maven.surefire.booter.MasterProcessReader;
  import org.apache.maven.surefire.common.junit4.JUnit4RunListener;
  import org.apache.maven.surefire.common.junit4.JUnitTestFailureListener;
  import org.apache.maven.surefire.common.junit4.Notifier;
  import org.apache.maven.surefire.common.junit48.FilterFactory;
  import org.apache.maven.surefire.common.junit48.JUnit48Reflector;
  import org.apache.maven.surefire.common.junit48.JUnit48TestChecker;
  import org.apache.maven.surefire.providerapi.AbstractProvider;
  import org.apache.maven.surefire.providerapi.ProviderParameters;
  import org.apache.maven.surefire.report.ConsoleLogger;
  import org.apache.maven.surefire.report.ConsoleOutputCapture;
  import org.apache.maven.surefire.report.ReporterFactory;
  import org.apache.maven.surefire.suite.RunResult;
  import org.apache.maven.surefire.testset.TestListResolver;
  import org.apache.maven.surefire.testset.TestSetFailedException;
  import org.apache.maven.surefire.util.RunOrderCalculator;
  import org.apache.maven.surefire.util.ScanResult;
  import org.apache.maven.surefire.util.ScannerFilter;
  import org.apache.maven.surefire.util.TestsToRun;
  import org.junit.runner.manipulation.Filter;
  import org.junit.runner.notification.Failure;
  import org.junit.runner.notification.RunListener;
  
  import static org.apache.maven.surefire.junitcore.ConcurrentRunListener.createInstance;
  import static org.apache.maven.surefire.common.junit4.JUnit4ProviderUtil.generateFailingTests;
  import static org.apache.maven.surefire.common.junit4.JUnit4RunListenerFactory.createCustomListeners;
  import static java.util.Collections.unmodifiableCollection;
  
  /**
   * @author Kristian Rosenvold
   */
  @SuppressWarnings( { "UnusedDeclaration" } )
  public class JUnitCoreProvider
      extends AbstractProvider
  {
      private final ClassLoader testClassLoader;
  
      private final JUnitCoreParameters jUnitCoreParameters;
  
      private final ScannerFilter scannerFilter;
  
      private final Collection<RunListener> customRunListeners;
  
      private final ProviderParameters providerParameters;
  
      private final ScanResult scanResult;
  
      private final int rerunFailingTestsCount;
  
      private final JUnit48Reflector jUnit48Reflector;
  
      private final RunOrderCalculator runOrderCalculator;
  
      private final TestListResolver testResolver;
  
      private final MasterProcessReader commandsReader;
  
      private TestsToRun testsToRun;
  
      public JUnitCoreProvider( ProviderParameters providerParameters )
      {
          commandsReader = providerParameters.isInsideFork()
              ? MasterProcessReader.getReader().setShutdown( providerParameters.getShutdown() )
              : null;
          this.providerParameters = providerParameters;
          testClassLoader = providerParameters.getTestClassLoader();
          scanResult = providerParameters.getScanResult();
          runOrderCalculator = providerParameters.getRunOrderCalculator();
          jUnitCoreParameters = new JUnitCoreParameters( providerParameters.getProviderProperties() );
          scannerFilter = new JUnit48TestChecker( testClassLoader );
         testResolver = providerParameters.getTestRequest().getTestListResolver();
         rerunFailingTestsCount = providerParameters.getTestRequest().getRerunFailingTestsCount();
         String listeners = providerParameters.getProviderProperties().get( "listener" );
         customRunListeners = unmodifiableCollection( createCustomListeners( listeners ) );
         jUnit48Reflector = new JUnit48Reflector( testClassLoader );
     }
 
     public Iterable<Class<?>> getSuites()
     {
         testsToRun = scanClassPath();
         return testsToRun;
     }
 
     private boolean isSingleThreaded()
     {
         return jUnitCoreParameters.isNoThreading();
     }
 
     public RunResult invoke( Object forkTestSet )
         throws TestSetFailedException
     {
         if ( isRerunFailingTests() && isFailFast() )
         {
             throw new TestSetFailedException( "don't enable parameters rerunFailingTestsCount, skipAfterFailureCount" );
         }
 
         final ReporterFactory reporterFactory = providerParameters.getReporterFactory();
 
         final ConsoleLogger consoleLogger = providerParameters.getConsoleLogger();
 
         Filter filter = jUnit48Reflector.isJUnit48Available() ? createJUnit48Filter() : null;
 
         if ( testsToRun == null )
         {
             if ( forkTestSet instanceof TestsToRun )
             {
                 testsToRun = (TestsToRun) forkTestSet;
             }
             else if ( forkTestSet instanceof Class )
             {
                 Class<?> theClass = (Class<?>) forkTestSet;
                 testsToRun = TestsToRun.fromClass( theClass );
             }
             else
             {
                 testsToRun = scanClassPath();
             }
         }
 
         Notifier notifier =
             new Notifier( createRunListener( reporterFactory, consoleLogger ), getSkipAfterFailureCount() );
 
         // Add test failure listener
         JUnitTestFailureListener testFailureListener = new JUnitTestFailureListener();
         notifier.addListener( testFailureListener );
 
         if ( isFailFast() && commandsReader != null )
         {
             registerPleaseStopJunitListener( notifier );
         }
 
         try
         {
             JUnitCoreWrapper core = new JUnitCoreWrapper( notifier, jUnitCoreParameters, consoleLogger, isFailFast() );
 
             if ( commandsReader != null )
             {
                 commandsReader.addShutdownListener( new MasterProcessListener()
                 {
                     public void update( Command command )
                     {
                         testsToRun.markTestSetFinished();
                     }
                 } );
                 commandsReader.awaitStarted();
             }
 
             core.execute( testsToRun, customRunListeners, filter );
 
             // Rerun failing tests if rerunFailingTestsCount is larger than 0
             if ( isRerunFailingTests() )
             {
                 for ( int i = 0; i < rerunFailingTestsCount && !testFailureListener.getAllFailures().isEmpty(); i++ )
                 {
                     List<Failure> failures = testFailureListener.getAllFailures();
                     Map<Class<?>, Set<String>> failingTests = generateFailingTests( failures, testClassLoader );
                     testFailureListener.reset();
                     final FilterFactory filterFactory = new FilterFactory( testClassLoader );
                     Filter failingMethodsFilter = filterFactory.createFailingMethodFilter( failingTests );
                     core.execute( testsToRun, failingMethodsFilter );
                 }
             }
             return reporterFactory.close();
         }
         finally
         {
             notifier.removeListeners();
             closeCommandsReader();
         }
     }
 
     private boolean isRerunFailingTests()
     {
         return rerunFailingTestsCount > 0;
     }
 
     private boolean isFailFast()
     {
         return providerParameters.getSkipAfterFailureCount() > 0;
     }
 
     private int getSkipAfterFailureCount()
     {
         return isFailFast() && !isRerunFailingTests() ? providerParameters.getSkipAfterFailureCount() : 0;
     }
 
     private void closeCommandsReader()
     {
         if ( commandsReader != null )
         {
             commandsReader.stop();
         }
     }
 
     private MasterProcessListener registerPleaseStopJunitListener( final Notifier stoppable )
     {
         MasterProcessListener listener = new MasterProcessListener()
         {
             public void update( Command command )
             {
                 stoppable.pleaseStop();
             }
         };
         commandsReader.addSkipNextListener( listener );
         return listener;
     }
 
     private JUnit4RunListener createRunListener( ReporterFactory reporterFactory, ConsoleLogger consoleLogger )
         throws TestSetFailedException
     {
         if ( isSingleThreaded() )
         {
             NonConcurrentRunListener rm = new NonConcurrentRunListener( reporterFactory.createReporter() );
             ConsoleOutputCapture.startCapture( rm );
             return rm;
         }
         else
         {
             final Map<String, TestSet> testSetMap = new ConcurrentHashMap<String, TestSet>();
 
             ConcurrentRunListener listener = createInstance( testSetMap, reporterFactory, isParallelTypes(),
                                                              isParallelMethodsAndTypes(), consoleLogger );
             ConsoleOutputCapture.startCapture( listener );
 
             return new JUnitCoreRunListener( listener, testSetMap );
         }
     }
 
     private boolean isParallelMethodsAndTypes()
     {
         return jUnitCoreParameters.isParallelMethods() && isParallelTypes();
     }
 
     private boolean isParallelTypes()
     {
         return jUnitCoreParameters.isParallelClasses() || jUnitCoreParameters.isParallelSuites();
     }
 
     private Filter createJUnit48Filter()
     {
         final FilterFactory factory = new FilterFactory( testClassLoader );
         Filter groupFilter = factory.createGroupFilter( providerParameters.getProviderProperties() );
         TestListResolver methodFilter = createMethodFilter();
         boolean onlyGroups = methodFilter == null || methodFilter.isEmpty();
         return onlyGroups ? groupFilter : factory.and( groupFilter, factory.createMethodFilter( methodFilter ) );
     }
 
     private TestsToRun scanClassPath()
     {
         TestsToRun scanned = scanResult.applyFilter( scannerFilter, testClassLoader );
         return runOrderCalculator.orderTestClasses( scanned );
     }
 
     private TestListResolver createMethodFilter()
     {
         return testResolver == null ? null : testResolver.createMethodFilters();
     }
 }