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.PrintStream;
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  import java.util.Iterator;
  
  import org.apache.maven.surefire.providerapi.SurefireProvider;
  import org.apache.maven.surefire.suite.RunResult;
  import org.apache.maven.surefire.testset.TestSetFailedException;
  import org.apache.maven.surefire.util.ReflectionUtils;
  
  
  /**
   * Creates the surefire provider.
   * <p/>
   *
   * @author Kristian Rosenvold
   */
  public class ProviderFactory
  {
      private final StartupConfiguration startupConfiguration;
  
      private final ProviderConfiguration providerConfiguration;
  
      private final ClassLoader classLoader;
  
      private final SurefireReflector surefireReflector;
  
      private final Object reporterManagerFactory;
  
      private static final Class[] INVOKE_PARAMETERS = new Class[]{ Object.class };
  
  
      public ProviderFactory( StartupConfiguration startupConfiguration, ProviderConfiguration providerConfiguration,
                              ClassLoader testsClassLoader, Object reporterManagerFactory )
      {
          this.providerConfiguration = providerConfiguration;
          this.startupConfiguration = startupConfiguration;
          this.surefireReflector = new SurefireReflector( testsClassLoader );
          this.classLoader = testsClassLoader;
          this.reporterManagerFactory = reporterManagerFactory;
      }
  
      public static RunResult invokeProvider( Object testSet, ClassLoader testsClassLoader, Object factory,
                                              ProviderConfiguration providerConfiguration, boolean insideFork,
                                              StartupConfiguration startupConfiguration1, boolean restoreStreams )
          throws TestSetFailedException, InvocationTargetException
      {
          final PrintStream orgSystemOut = System.out;
          final PrintStream orgSystemErr = System.err;
          // Note that System.out/System.err are also read in the "ReporterConfiguration" instantiation
          // in createProvider below. These are the same values as here.
  
          ProviderFactory providerFactory =
              new ProviderFactory( startupConfiguration1, providerConfiguration, testsClassLoader,
                                   factory );
          final SurefireProvider provider = providerFactory.createProvider( insideFork );
  
          try
          {
              return provider.invoke( testSet );
          }
          finally
          {
              if ( restoreStreams && System.getSecurityManager() == null )
              {
                  System.setOut( orgSystemOut );
                  System.setErr( orgSystemErr );
              }
          }
      }
  
  
      public SurefireProvider createProvider( boolean isInsideFork )
      {
          ClassLoader systemClassLoader = java.lang.Thread.currentThread().getContextClassLoader();
          Thread.currentThread().setContextClassLoader( classLoader );
  
          StartupConfiguration starterConfiguration = startupConfiguration;
 
         // Note: Duplicated in ForkedBooter#createProviderInCurrentClassloader
         final Object o =
             surefireReflector.createBooterConfiguration( classLoader, reporterManagerFactory, isInsideFork );
         surefireReflector.setTestSuiteDefinitionAware( o, providerConfiguration.getTestSuiteDefinition() );
         surefireReflector.setProviderPropertiesAware( o, providerConfiguration.getProviderProperties() );
         surefireReflector.setReporterConfigurationAware( o, providerConfiguration.getReporterConfiguration() );
         surefireReflector.setTestClassLoaderAware( o, classLoader );
         surefireReflector.setTestArtifactInfoAware( o, providerConfiguration.getTestArtifact() );
         surefireReflector.setRunOrderParameters( o, providerConfiguration.getRunOrderParameters() );
         surefireReflector.setIfDirScannerAware( o, providerConfiguration.getDirScannerParams() );
 
         Object provider = surefireReflector.instantiateProvider( starterConfiguration.getActualClassName(), o );
         Thread.currentThread().setContextClassLoader( systemClassLoader );
 
         return new ProviderProxy( provider, classLoader );
     }
 
 
     private final class ProviderProxy
         implements SurefireProvider
     {
         private final Object providerInOtherClassLoader;
 
         private final ClassLoader testsClassLoader;
 
 
         private ProviderProxy( Object providerInOtherClassLoader, ClassLoader testsClassLoader )
         {
             this.providerInOtherClassLoader = providerInOtherClassLoader;
             this.testsClassLoader = testsClassLoader;
         }
 
         public Iterator getSuites()
         {
             ClassLoader current = swapClassLoader( testsClassLoader );
             try
             {
                 return (Iterator) ReflectionUtils.invokeGetter( providerInOtherClassLoader, "getSuites" );
             }
             finally
             {
                 Thread.currentThread().setContextClassLoader( current );
             }
         }
 
         public RunResult invoke( Object forkTestSet )
             throws TestSetFailedException, InvocationTargetException
         {
             ClassLoader current = swapClassLoader( testsClassLoader );
             try
             {
                 final Method invoke =
                     ReflectionUtils.getMethod( providerInOtherClassLoader.getClass(), "invoke", INVOKE_PARAMETERS );
 
                 final Object result = ReflectionUtils.invokeMethodWithArray2( providerInOtherClassLoader, invoke,
                                                                               new Object[]{ forkTestSet } );
                 return (RunResult) surefireReflector.convertIfRunResult( result );
             }
             finally
             {
                 if ( System.getSecurityManager() == null )
                 {
                     Thread.currentThread().setContextClassLoader( current );
                 }
             }
 
         }
 
         private ClassLoader swapClassLoader( ClassLoader newClassLoader )
         {
             ClassLoader current = Thread.currentThread().getContextClassLoader();
             Thread.currentThread().setContextClassLoader( newClassLoader );
             return current;
         }
 
         public void cancel()
         {
             final Method invoke =
                 ReflectionUtils.getMethod( providerInOtherClassLoader.getClass(), "cancel", new Class[]{ } );
             ReflectionUtils.invokeMethodWithArray( providerInOtherClassLoader, invoke, null );
         }
     }
 }