package org.apache.maven.surefire.booter;
   
   /*
    * 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.io.File;
  import java.io.PrintStream;
  import java.lang.reflect.Constructor;
  import java.lang.reflect.InvocationHandler;
  import java.lang.reflect.Method;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.maven.surefire.cli.CommandLineOption;
  import org.apache.maven.surefire.providerapi.ProviderParameters;
  import org.apache.maven.surefire.report.ReporterConfiguration;
  import org.apache.maven.surefire.report.ReporterFactory;
  import org.apache.maven.surefire.suite.RunResult;
  import org.apache.maven.surefire.testset.DirectoryScannerParameters;
  import org.apache.maven.surefire.testset.RunOrderParameters;
  import org.apache.maven.surefire.testset.TestArtifactInfo;
  import org.apache.maven.surefire.testset.TestListResolver;
  import org.apache.maven.surefire.testset.TestRequest;
  import org.apache.maven.surefire.util.RunOrder;
  import org.apache.maven.surefire.util.SurefireReflectionException;
  
  import static java.util.Collections.checkedList;
  
  import static org.apache.maven.surefire.util.ReflectionUtils.getConstructor;
  import static org.apache.maven.surefire.util.ReflectionUtils.getMethod;
  import static org.apache.maven.surefire.util.ReflectionUtils.invokeGetter;
  import static org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray;
  import static org.apache.maven.surefire.util.ReflectionUtils.instantiateOneArg;
  import static org.apache.maven.surefire.util.ReflectionUtils.invokeSetter;
  import static org.apache.maven.surefire.util.ReflectionUtils.instantiateTwoArgs;
  import static org.apache.maven.surefire.util.ReflectionUtils.newInstance;
  
  /**
   * Does reflection based invocation of the surefire methods.
   * <p/>
   * This is to avoid complications with linkage issues
   *
   * @author Kristian Rosenvold
   */
  public class SurefireReflector
  {
      private final ClassLoader surefireClassLoader;
  
      private final Class<?> reporterConfiguration;
  
      private final Class<?> testRequest;
  
      private final Class<?> testArtifactInfo;
  
      private final Class<?> testArtifactInfoAware;
  
      private final Class<?> directoryScannerParameters;
  
      private final Class<?> runOrderParameters;
  
      private final Class<?> directoryScannerParametersAware;
  
      private final Class<?> testSuiteDefinitionAware;
  
      private final Class<?> testClassLoaderAware;
  
      private final Class<?> reporterConfigurationAware;
  
      private final Class<?> providerPropertiesAware;
  
      private final Class<?> runResult;
  
      private final Class<?> booterParameters;
  
      private final Class<?> reporterFactory;
  
      private final Class<?> testListResolver;
  
      private final Class<?> mainCliOptions;
  
      private final Class<Enum> commandLineOptionsClass;
 
     private final Class<?> shutdownAwareClass;
 
     private final Class<Enum> shutdownClass;
 
 
     @SuppressWarnings( "unchecked" )
     public SurefireReflector( ClassLoader surefireClassLoader )
     {
         this.surefireClassLoader = surefireClassLoader;
         try
         {
             reporterConfiguration = surefireClassLoader.loadClass( ReporterConfiguration.class.getName() );
             testRequest = surefireClassLoader.loadClass( TestRequest.class.getName() );
             testArtifactInfo = surefireClassLoader.loadClass( TestArtifactInfo.class.getName() );
             testArtifactInfoAware = surefireClassLoader.loadClass( TestArtifactInfoAware.class.getName() );
             directoryScannerParameters = surefireClassLoader.loadClass( DirectoryScannerParameters.class.getName() );
             runOrderParameters = surefireClassLoader.loadClass( RunOrderParameters.class.getName() );
             directoryScannerParametersAware =
                 surefireClassLoader.loadClass( DirectoryScannerParametersAware.class.getName() );
             testSuiteDefinitionAware = surefireClassLoader.loadClass( TestRequestAware.class.getName() );
             testClassLoaderAware = surefireClassLoader.loadClass( SurefireClassLoadersAware.class.getName() );
             reporterConfigurationAware = surefireClassLoader.loadClass( ReporterConfigurationAware.class.getName() );
             providerPropertiesAware = surefireClassLoader.loadClass( ProviderPropertiesAware.class.getName() );
             reporterFactory = surefireClassLoader.loadClass( ReporterFactory.class.getName() );
             runResult = surefireClassLoader.loadClass( RunResult.class.getName() );
             booterParameters = surefireClassLoader.loadClass( ProviderParameters.class.getName() );
             testListResolver = surefireClassLoader.loadClass( TestListResolver.class.getName() );
             mainCliOptions = surefireClassLoader.loadClass( MainCliOptionsAware.class.getName() );
             commandLineOptionsClass = (Class<Enum>) surefireClassLoader.loadClass( CommandLineOption.class.getName() );
             shutdownAwareClass = surefireClassLoader.loadClass( ShutdownAware.class.getName() );
             shutdownClass = (Class<Enum>) surefireClassLoader.loadClass( Shutdown.class.getName() );
         }
         catch ( ClassNotFoundException e )
         {
             throw new SurefireReflectionException( e );
         }
     }
 
     public Object convertIfRunResult( Object result )
     {
         if ( result == null || !isRunResult( result ) )
         {
             return result;
         }
         int getCompletedCount1 = (Integer) invokeGetter( result, "getCompletedCount" );
         int getErrors = (Integer) invokeGetter( result, "getErrors" );
         int getSkipped = (Integer) invokeGetter( result, "getSkipped" );
         int getFailures = (Integer) invokeGetter( result, "getFailures" );
         return new RunResult( getCompletedCount1, getErrors, getFailures, getSkipped );
 
     }
 
     /**
      * @noinspection UnusedDeclaration
      */
     class ClassLoaderProxy
         implements InvocationHandler
     {
         private final Object target;
 
         /**
          * @param delegate a target
          * @noinspection UnusedDeclaration
          */
         public ClassLoaderProxy( Object delegate )
         {
             this.target = delegate;
         }
 
         public Object invoke( Object proxy, Method method, Object[] args )
             throws Throwable
         {
             Method delegateMethod = target.getClass().getMethod( method.getName(), method.getParameterTypes() );
             return delegateMethod.invoke( target, args );
         }
     }
 
     Object createTestRequest( TestRequest suiteDefinition )
     {
         if ( suiteDefinition == null )
         {
             return null;
         }
         else
         {
             Object resolver = createTestListResolver( suiteDefinition.getTestListResolver() );
             Class<?>[] arguments = { List.class, File.class, testListResolver, int.class };
             Constructor constructor = getConstructor( testRequest, arguments );
             return newInstance( constructor,
                                 suiteDefinition.getSuiteXmlFiles(),
                                 suiteDefinition.getTestSourceDirectory(),
                                 resolver,
                                 suiteDefinition.getRerunFailingTestsCount() );
         }
     }
 
     Object createTestListResolver( TestListResolver resolver )
     {
         if ( resolver == null )
         {
             return null;
         }
         else
         {
             Constructor constructor = getConstructor( testListResolver, String.class );
             return newInstance( constructor, resolver.getPluginParameterTest() );
         }
     }
 
     Object createDirectoryScannerParameters( DirectoryScannerParameters directoryScannerParameters )
     {
         if ( directoryScannerParameters == null )
         {
             return null;
         }
         //Can't use the constructor with the RunOrder parameter. Using it causes some integration tests to fail.
         Class<?>[] arguments = { File.class, List.class, List.class, List.class, boolean.class, String.class };
         Constructor constructor = getConstructor( this.directoryScannerParameters, arguments );
         return newInstance( constructor,
                             directoryScannerParameters.getTestClassesDirectory(),
                             directoryScannerParameters.getIncludes(),
                             directoryScannerParameters.getExcludes(),
                             directoryScannerParameters.getSpecificTests(),
                             directoryScannerParameters.isFailIfNoTests(),
                             RunOrder.asString( directoryScannerParameters.getRunOrder() ) );
     }
 
 
     Object createRunOrderParameters( RunOrderParameters runOrderParameters )
     {
         if ( runOrderParameters == null )
         {
             return null;
         }
         //Can't use the constructor with the RunOrder parameter. Using it causes some integration tests to fail.
         Class<?>[] arguments = { String.class, String.class };
         Constructor constructor = getConstructor( this.runOrderParameters, arguments );
         File runStatisticsFile = runOrderParameters.getRunStatisticsFile();
         return newInstance( constructor, RunOrder.asString( runOrderParameters.getRunOrder() ),
                             runStatisticsFile == null ? null : runStatisticsFile.getAbsolutePath() );
     }
 
     Object createTestArtifactInfo( TestArtifactInfo testArtifactInfo )
     {
         if ( testArtifactInfo == null )
         {
             return null;
         }
         Class<?>[] arguments = { String.class, String.class };
         Constructor constructor = getConstructor( this.testArtifactInfo, arguments );
         return newInstance( constructor, testArtifactInfo.getVersion(), testArtifactInfo.getClassifier() );
     }
 
 
     Object createReporterConfiguration( ReporterConfiguration reporterConfig )
     {
         Constructor constructor = getConstructor( reporterConfiguration, File.class, boolean.class );
         return newInstance( constructor, reporterConfig.getReportsDirectory(), reporterConfig.isTrimStackTrace() );
     }
 
     public static ReporterFactory createForkingReporterFactoryInCurrentClassLoader( boolean trimStackTrace,
                                                                                     PrintStream originalSystemOut )
     {
         return new ForkingReporterFactory( trimStackTrace, originalSystemOut );
     }
 
     public Object createBooterConfiguration( ClassLoader surefireClassLoader, Object factoryInstance,
                                              boolean insideFork )
     {
         return instantiateTwoArgs( surefireClassLoader, BaseProviderFactory.class.getName(),
                                    reporterFactory, factoryInstance, boolean.class, insideFork );
     }
 
     public Object instantiateProvider( String providerClassName, Object booterParameters )
     {
         return instantiateOneArg( surefireClassLoader, providerClassName, this.booterParameters, booterParameters );
     }
 
     public void setIfDirScannerAware( Object o, DirectoryScannerParameters dirScannerParams )
     {
         if ( directoryScannerParametersAware.isAssignableFrom( o.getClass() ) )
         {
             setDirectoryScannerParameters( o, dirScannerParams );
         }
     }
 
     public void setMainCliOptions( Object o, List<CommandLineOption> options )
     {
         if ( mainCliOptions.isAssignableFrom( o.getClass() ) )
         {
             List<Enum> newOptions = checkedList( new ArrayList<Enum>( options.size() ), commandLineOptionsClass );
             Collection<Integer> ordinals = toOrdinals( options );
             for ( Enum e : commandLineOptionsClass.getEnumConstants() )
             {
                 if ( ordinals.contains( e.ordinal() ) )
                 {
                     newOptions.add( e );
                 }
             }
             invokeSetter( o, "setMainCliOptions", List.class, newOptions );
         }
     }
 
     public void setSkipAfterFailureCount( Object o, int skipAfterFailureCount )
     {
         invokeSetter( o, "setSkipAfterFailureCount", int.class, skipAfterFailureCount );
     }
 
     public void setShutdown( Object o, Shutdown shutdown )
     {
         if ( shutdownAwareClass.isAssignableFrom( o.getClass() ) )
         {
             for ( Enum e : shutdownClass.getEnumConstants() )
             {
                 if ( shutdown.ordinal() == e.ordinal() )
                 {
                     invokeSetter( o, "setShutdown", shutdownClass, e );
                     break;
                 }
             }
         }
     }
 
     public void setDirectoryScannerParameters( Object o, DirectoryScannerParameters dirScannerParams )
     {
         Object param = createDirectoryScannerParameters( dirScannerParams );
         invokeSetter( o, "setDirectoryScannerParameters", directoryScannerParameters, param );
     }
 
     public void setRunOrderParameters( Object o, RunOrderParameters runOrderParameters )
     {
         Object param = createRunOrderParameters( runOrderParameters );
         invokeSetter( o, "setRunOrderParameters", this.runOrderParameters, param );
     }
 
     public void setTestSuiteDefinitionAware( Object o, TestRequest testSuiteDefinition2 )
     {
         if ( testSuiteDefinitionAware.isAssignableFrom( o.getClass() ) )
         {
             setTestSuiteDefinition( o, testSuiteDefinition2 );
         }
     }
 
     void setTestSuiteDefinition( Object o, TestRequest testSuiteDefinition1 )
     {
         Object param = createTestRequest( testSuiteDefinition1 );
         invokeSetter( o, "setTestRequest", testRequest, param );
     }
 
     public void setProviderPropertiesAware( Object o, Map<String, String> properties )
     {
         if ( providerPropertiesAware.isAssignableFrom( o.getClass() ) )
         {
             setProviderProperties( o, properties );
         }
     }
 
     void setProviderProperties( Object o, Map<String, String> providerProperties )
     {
         invokeSetter( o, "setProviderProperties", Map.class, providerProperties );
     }
 
     public void setReporterConfigurationAware( Object o, ReporterConfiguration reporterConfiguration1 )
     {
         if ( reporterConfigurationAware.isAssignableFrom( o.getClass() ) )
         {
             setReporterConfiguration( o, reporterConfiguration1 );
         }
     }
 
 
     void setReporterConfiguration( Object o, ReporterConfiguration reporterConfiguration )
     {
         Object param = createReporterConfiguration( reporterConfiguration );
         invokeSetter( o, "setReporterConfiguration", this.reporterConfiguration, param );
     }
 
     public void setTestClassLoaderAware( Object o, ClassLoader testClassLoader )
     {
         if ( testClassLoaderAware.isAssignableFrom( o.getClass() ) )
         {
             setTestClassLoader( o, testClassLoader );
         }
     }
 
     void setTestClassLoader( Object o, ClassLoader testClassLoader )
     {
         Method setter = getMethod( o, "setClassLoaders", ClassLoader.class );
         invokeMethodWithArray( o, setter, testClassLoader );
     }
 
     public void setTestArtifactInfoAware( Object o, TestArtifactInfo testArtifactInfo1 )
     {
         if ( testArtifactInfoAware.isAssignableFrom( o.getClass() ) )
         {
             setTestArtifactInfo( o, testArtifactInfo1 );
         }
     }
 
     void setTestArtifactInfo( Object o, TestArtifactInfo testArtifactInfo )
     {
         Object param = createTestArtifactInfo( testArtifactInfo );
         invokeSetter( o, "setTestArtifactInfo", this.testArtifactInfo, param );
     }
 
     private boolean isRunResult( Object o )
     {
         return runResult.isAssignableFrom( o.getClass() );
     }
 
     private static Collection<Integer> toOrdinals( Collection<? extends Enum> enums )
     {
         Collection<Integer> ordinals = new ArrayList<Integer>( enums.size() );
         for ( Enum e : enums )
         {
             ordinals.add( e.ordinal() );
         }
         return ordinals;
     }
 
 }