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.Iterator;

 import java.util.List;

 import java.util.Map;

 import java.util.concurrent.ConcurrentHashMap;

 import org.apache.maven.surefire.common.junit4.JUnit4RunListenerFactory;

 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.ConsoleOutputReceiver;

 import org.apache.maven.surefire.report.ReporterException;

 import org.apache.maven.surefire.report.ReporterFactory;

 import org.apache.maven.surefire.report.RunListener;

 import org.apache.maven.surefire.suite.RunResult;

 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.apache.maven.surefire.util.internal.StringUtils;

 import org.junit.runner.manipulation.Filter;

 /**

  * @author Kristian Rosenvold

  */

 @SuppressWarnings( { "UnusedDeclaration" } )

 public class JUnitCoreProvider

     extends AbstractProvider

 {

     private final ClassLoader testClassLoader;

     private final JUnitCoreParameters jUnitCoreParameters;

     private final ScannerFilter scannerFilter;

     private final List<org.junit.runner.notification.RunListener> customRunListeners;

     private final ProviderParameters providerParameters;

     private TestsToRun testsToRun;

     private JUnit48Reflector jUnit48Reflector;

     private RunOrderCalculator runOrderCalculator;

     private String requestedTestMethod;

     private final ScanResult scanResult;

     public JUnitCoreProvider( ProviderParameters providerParameters )

     {

         this.providerParameters = providerParameters;

         this.testClassLoader = providerParameters.getTestClassLoader();

         this.scanResult = providerParameters.getScanResult();

         this.runOrderCalculator = providerParameters.getRunOrderCalculator();

         this.jUnitCoreParameters = new JUnitCoreParameters( providerParameters.getProviderProperties() );

         this.scannerFilter = new JUnit48TestChecker( testClassLoader );

         this.requestedTestMethod = providerParameters.getTestRequest().getRequestedTestMethod();

         customRunListeners =

             JUnit4RunListenerFactory.createCustomListeners( providerParameters.getProviderProperties().getProperty( "listener" ) );

         jUnit48Reflector = new JUnit48Reflector( testClassLoader );

     }

     public Boolean isRunnable()

     {

         return Boolean.TRUE;

     }

     public Iterator getSuites()

     {

         testsToRun = scanClassPath();

         return testsToRun.iterator();

     }

     private boolean isSingleThreaded()

     {

         return jUnitCoreParameters.isNoThreading();

     }

     public RunResult invoke( Object forkTestSet )

         throws TestSetFailedException, ReporterException

     {

         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();

             }

         }

         org.junit.runner.notification.RunListener jUnit4RunListener = getRunListener( reporterFactory, consoleLogger );

         customRunListeners.add( 0, jUnit4RunListener );

         JUnitCoreWrapper.execute( testsToRun, jUnitCoreParameters, customRunListeners, filter );

         return reporterFactory.close();

     }

     private org.junit.runner.notification.RunListener getRunListener( ReporterFactory reporterFactory,

                                                                       ConsoleLogger consoleLogger )

         throws TestSetFailedException

     {

         org.junit.runner.notification.RunListener jUnit4RunListener;

         if ( isSingleThreaded() )

         {

             NonConcurrentRunListener rm = new NonConcurrentRunListener( reporterFactory.createReporter() );

             ConsoleOutputCapture.startCapture( rm );

             jUnit4RunListener = rm;

         }

         else

         {

             final Map<String, TestSet> testSetMap = new ConcurrentHashMap<String, TestSet>();

             RunListener listener =

                 ConcurrentRunListener.createInstance( testSetMap, reporterFactory,

                                                       isParallelTypes(),

                                                       isParallelMethodsAndTypes(), consoleLogger );

             ConsoleOutputCapture.startCapture( (ConsoleOutputReceiver) listener );

             jUnit4RunListener = new JUnitCoreRunListener( listener, testSetMap );

         }

         return jUnit4RunListener;

     }

     private boolean isParallelMethodsAndTypes()

     {

         return jUnitCoreParameters.isParallelMethod() && isParallelTypes();

     }

     private boolean isParallelTypes()

     {

         return jUnitCoreParameters.isParallelClasses() || jUnitCoreParameters.isParallelSuites();

     }

     private Filter createJUnit48Filter()

     {

         final FilterFactory filterFactory = new FilterFactory( testClassLoader );

         Filter groupFilter = filterFactory.createGroupFilter( providerParameters.getProviderProperties() );

         return isMethodFilterSpecified() ? filterFactory.and( groupFilter,

                                                               filterFactory.createMethodFilter( requestedTestMethod ) )

                         : groupFilter;

     }

     private TestsToRun scanClassPath()

     {

         final TestsToRun scanned = scanResult.applyFilter( scannerFilter, testClassLoader );

         return runOrderCalculator.orderTestClasses( scanned );

     }

     private boolean isMethodFilterSpecified()

     {

         return !StringUtils.isBlank( requestedTestMethod );

     }

 }