package org.apache.maven.surefire.junit;
   
   /*
    * 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 org.apache.maven.surefire.common.junit3.JUnit3Reflector;
  import org.apache.maven.surefire.common.junit3.JUnit3TestChecker;
  import org.apache.maven.surefire.providerapi.AbstractProvider;
  import org.apache.maven.surefire.providerapi.ProviderParameters;
  import org.apache.maven.surefire.report.RunListener;
  import org.apache.maven.surefire.report.ReportEntry;
  import org.apache.maven.surefire.report.ReporterException;
  import org.apache.maven.surefire.report.ReporterFactory;
  import org.apache.maven.surefire.report.SimpleReportEntry;
  import org.apache.maven.surefire.suite.RunResult;
  import org.apache.maven.surefire.testset.TestSetFailedException;
  import org.apache.maven.surefire.util.DirectoryScanner;
  import org.apache.maven.surefire.util.TestsToRun;
  
  import java.util.Iterator;
  
  /**
   * @author Kristian Rosenvold
   * @noinspection UnusedDeclaration
   */
  public class JUnit3Provider
      extends AbstractProvider
  {
      private final ClassLoader testClassLoader;
  
      private final DirectoryScanner directoryScanner;
  
      private final PojoAndJUnit3Checker testChecker;
  
      private final JUnit3TestChecker jUnit3TestChecker;
  
      private final JUnit3Reflector reflector;
  
      private final ProviderParameters providerParameters;
  
      private TestsToRun testsToRun;
  
      public JUnit3Provider( ProviderParameters booterParameters )
      {
          this.providerParameters = booterParameters;
          this.testClassLoader = booterParameters.getTestClassLoader();
          this.directoryScanner = booterParameters.getDirectoryScanner();
          this.reflector = new JUnit3Reflector( testClassLoader );
          jUnit3TestChecker = new JUnit3TestChecker( testClassLoader );
          this.testChecker = new PojoAndJUnit3Checker( jUnit3TestChecker ); // Todo; use reflector
      }
  
      public RunResult invoke( Object forkTestSet )
          throws TestSetFailedException, ReporterException
      {
          if ( testsToRun == null )
          {
              testsToRun = forkTestSet == null ? scanClassPath() : TestsToRun.fromClass( (Class) forkTestSet );
          }
  
          ReporterFactory reporterFactory = providerParameters.getReporterFactory();
  
          RunListener reporter = reporterFactory.createReporter();
  
          for ( Iterator iter = testsToRun.iterator(); iter.hasNext(); )
          {
              Class clazz = (Class) iter.next();
              SurefireTestSet surefireTestSet = createTestSet( clazz );
              executeTestSet( surefireTestSet, reporter, testClassLoader );
          }
  
          return reporterFactory.close();
      }
  
      private SurefireTestSet createTestSet( Class clazz )
          throws TestSetFailedException
      {
          return reflector.isJUnit3Available() && jUnit3TestChecker.accept( clazz )
              ? new JUnitTestSet( clazz, reflector )
              : (SurefireTestSet) new PojoTestSet( clazz );
  
      }
  
     private void executeTestSet( SurefireTestSet testSet, RunListener reporter, ClassLoader classLoader )
         throws ReporterException, TestSetFailedException
     {
 
         ReportEntry report = new SimpleReportEntry( this.getClass().getName(), testSet.getName() );
 
         reporter.testSetStarting( report );
 
         testSet.execute( reporter, classLoader );
 
         reporter.testSetCompleted( report );
     }
 
     private TestsToRun scanClassPath()
     {
         return directoryScanner.locateTestClasses( testClassLoader, testChecker );
     }
 
     public Iterator getSuites()
     {
         testsToRun = scanClassPath();
         return testsToRun.iterator();
     }
 
     public Boolean isRunnable()
     {
         return Boolean.TRUE;
     }
 }