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.List;
  import java.util.Properties;
  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.TestRequest;
  import org.apache.maven.surefire.util.ReflectionUtils;
  import org.apache.maven.surefire.util.RunOrder;
  import org.apache.maven.surefire.util.SurefireReflectionException;
  
  /**
   * 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;
  
  
      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() );
         }
         catch ( ClassNotFoundException e )
         {
             throw new SurefireReflectionException( e );
         }
     }
 
     public Object convertIfRunResult( Object result )
     {
         if ( result == null || !isRunResult( result ) )
         {
             return result;
         }
         final Integer getCompletedCount1 = (Integer) ReflectionUtils.invokeGetter( result, "getCompletedCount" );
         final Integer getErrors = (Integer) ReflectionUtils.invokeGetter( result, "getErrors" );
         final Integer getSkipped = (Integer) ReflectionUtils.invokeGetter( result, "getSkipped" );
         final Integer getFailures = (Integer) ReflectionUtils.invokeGetter( result, "getFailures" );
         return new RunResult( getCompletedCount1.intValue(), getErrors.intValue(), getFailures.intValue(),
                               getSkipped.intValue() );
 
     }
 
 
     /**
      * @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;
         }
         Class[] arguments = { List.class, File.class, String.class, String.class };
         Constructor constructor = ReflectionUtils.getConstructor( this.testRequest, arguments );
         return ReflectionUtils.newInstance( constructor, new Object[]{ suiteDefinition.getSuiteXmlFiles(),
             suiteDefinition.getTestSourceDirectory(), suiteDefinition.getRequestedTest(),
             suiteDefinition.getRequestedTestMethod() } );
     }
 
 
     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 = ReflectionUtils.getConstructor( this.directoryScannerParameters, arguments );
         return ReflectionUtils.newInstance( constructor,
                                             new Object[]{ 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 = ReflectionUtils.getConstructor( this.runOrderParameters, arguments );
         final File runStatisticsFile = runOrderParameters.getRunStatisticsFile();
         return ReflectionUtils.newInstance( constructor,
                                             new Object[]{ RunOrder.asString( runOrderParameters.getRunOrder() ),
                                                 runStatisticsFile != null
                                                     ? runStatisticsFile.getAbsolutePath()
                                                     : null } );
     }
 
     Object createTestArtifactInfo( TestArtifactInfo testArtifactInfo )
     {
         if ( testArtifactInfo == null )
         {
             return null;
         }
         Class[] arguments = { String.class, String.class };
         Constructor constructor = ReflectionUtils.getConstructor( this.testArtifactInfo, arguments );
         return ReflectionUtils.newInstance( constructor, new Object[]{ testArtifactInfo.getVersion(),
             testArtifactInfo.getClassifier() } );
     }
 
 
     Object createReporterConfiguration( ReporterConfiguration reporterConfiguration )
     {
         Constructor constructor =
             ReflectionUtils.getConstructor( this.reporterConfiguration, new Class[]{ File.class, Boolean.class } );
         return ReflectionUtils.newInstance( constructor, new Object[]{ reporterConfiguration.getReportsDirectory(),
             reporterConfiguration.isTrimStackTrace() } );
     }
 
     public Object createForkingReporterFactory( Boolean trimStackTrace, PrintStream originalSystemOut )
     {
         Class[] args = new Class[]{ Boolean.class, PrintStream.class };
         Object[] values = new Object[]{ trimStackTrace, originalSystemOut };
         return ReflectionUtils.instantiateObject( ForkingReporterFactory.class.getName(), args, values,
                                                   surefireClassLoader );
     }
 
     public Object createBooterConfiguration( ClassLoader surefireClassLoader, Object factoryInstance,
                                              boolean insideFork )
     {
         return ReflectionUtils.instantiateTwoArgs( surefireClassLoader, BaseProviderFactory.class.getName(),
                                                    reporterFactory, factoryInstance, Boolean.class,
                                                    insideFork ? Boolean.TRUE : Boolean.FALSE );
     }
 
     public Object instantiateProvider( String providerClassName, Object booterParameters )
     {
         return ReflectionUtils.instantiateOneArg( surefireClassLoader, providerClassName, this.booterParameters,
                                                   booterParameters );
     }
 
     public void setIfDirScannerAware( Object o, DirectoryScannerParameters dirScannerParams )
     {
         if ( directoryScannerParametersAware.isAssignableFrom( o.getClass() ) )
         {
             setDirectoryScannerParameters( o, dirScannerParams );
         }
     }
 
     public void setDirectoryScannerParameters( Object o, DirectoryScannerParameters dirScannerParams )
     {
         final Object param = createDirectoryScannerParameters( dirScannerParams );
         ReflectionUtils.invokeSetter( o, "setDirectoryScannerParameters", this.directoryScannerParameters, param );
     }
 
     public void setRunOrderParameters( Object o, RunOrderParameters runOrderParameters )
     {
         final Object param = createRunOrderParameters( runOrderParameters );
         ReflectionUtils.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 )
     {
         final Object param = createTestRequest( testSuiteDefinition1 );
         ReflectionUtils.invokeSetter( o, "setTestRequest", this.testRequest, param );
     }
 
     public void setProviderPropertiesAware( Object o, Properties properties )
     {
         if ( providerPropertiesAware.isAssignableFrom( o.getClass() ) )
         {
             setProviderProperties( o, properties );
         }
     }
 
     void setProviderProperties( Object o, Properties providerProperties )
     {
         ReflectionUtils.invokeSetter( o, "setProviderProperties", Properties.class, providerProperties );
     }
 
     public void setReporterConfigurationAware( Object o, ReporterConfiguration reporterConfiguration1 )
     {
         if ( reporterConfigurationAware.isAssignableFrom( o.getClass() ) )
         {
             setReporterConfiguration( o, reporterConfiguration1 );
         }
     }
 
 
     void setReporterConfiguration( Object o, ReporterConfiguration reporterConfiguration )
     {
         final Object param = createReporterConfiguration( reporterConfiguration );
         ReflectionUtils.invokeSetter( o, "setReporterConfiguration", this.reporterConfiguration, param );
     }
 
     public void setTestClassLoaderAware( Object o, ClassLoader surefireClassLoader, ClassLoader testClassLoader )
     {
         if ( testClassLoaderAware.isAssignableFrom( o.getClass() ) )
         {
             setTestClassLoader( o, surefireClassLoader, testClassLoader );
         }
     }
 
     void setTestClassLoader( Object o, ClassLoader surefireClassLoader, ClassLoader testClassLoader )
     {
         final Method setter =
             ReflectionUtils.getMethod( o, "setClassLoaders", new Class[]{ ClassLoader.class, ClassLoader.class } );
         ReflectionUtils.invokeMethodWithArray( o, setter, new Object[]{ surefireClassLoader, testClassLoader } );
     }
 
     public void setTestArtifactInfoAware( Object o, TestArtifactInfo testArtifactInfo1 )
     {
         if ( testArtifactInfoAware.isAssignableFrom( o.getClass() ) )
         {
             setTestArtifactInfo( o, testArtifactInfo1 );
         }
     }
 
     void setTestArtifactInfo( Object o, TestArtifactInfo testArtifactInfo )
     {
         final Object param = createTestArtifactInfo( testArtifactInfo );
         ReflectionUtils.invokeSetter( o, "setTestArtifactInfo", this.testArtifactInfo, param );
     }
 
     private boolean isRunResult( Object o )
     {
         return runResult.isAssignableFrom( o.getClass() );
     }
 
 }