package org.apache.maven.plugins.surefire.report;
   
   /*
    * 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.IOException;
  import java.text.NumberFormat;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Locale;
  import java.util.Map;
  
  import javax.xml.parsers.ParserConfigurationException;
  
  import org.apache.maven.plugin.surefire.log.api.ConsoleLogger;
  import org.apache.maven.reporting.MavenReportException;
  import org.apache.maven.shared.utils.io.DirectoryScanner;
  import org.xml.sax.SAXException;
  
  import static org.apache.maven.shared.utils.StringUtils.split;
  
  /**
   *
   */
  public final class SurefireReportParser
  {
      private static final String INCLUDES = "*.xml";
  
      private static final String EXCLUDES =
                      "*.txt, testng-failed.xml, testng-failures.xml, testng-results.xml, failsafe-summary*.xml";
  
      private static final int PCENT = 100;
  
      private final List<ReportTestSuite> testSuites = new ArrayList<>();
  
      private final NumberFormat numberFormat;
  
      private final ConsoleLogger consoleLogger;
  
      private final List<File> reportsDirectories;
  
      public SurefireReportParser( List<File> reportsDirectories, Locale locale, ConsoleLogger consoleLogger )
      {
          this.reportsDirectories = reportsDirectories;
          numberFormat = NumberFormat.getInstance( locale );
          this.consoleLogger = consoleLogger;
      }
  
      public List<ReportTestSuite> parseXMLReportFiles()
          throws MavenReportException
      {
          final Collection<File> xmlReportFiles = new ArrayList<>();
          for ( File reportsDirectory : reportsDirectories )
          {
              if ( reportsDirectory.exists() )
              {
                  for ( String xmlReportFile : getIncludedFiles( reportsDirectory, INCLUDES, EXCLUDES ) )
                  {
                      xmlReportFiles.add( new File( reportsDirectory, xmlReportFile ) );
                  }
              }
          }
          final TestSuiteXmlParser parser = new TestSuiteXmlParser( consoleLogger );
          for ( File aXmlReportFileList : xmlReportFiles )
          {
              try
              {
                  testSuites.addAll( parser.parse( aXmlReportFileList.getAbsolutePath() ) );
              }
              catch ( ParserConfigurationException e )
              {
                  throw new MavenReportException( "Error setting up parser for JUnit XML report", e );
              }
              catch ( SAXException e )
              {
                  throw new MavenReportException( "Error parsing JUnit XML report " + aXmlReportFileList, e );
              }
              catch ( IOException e )
              {
                  throw new MavenReportException( "Error reading JUnit XML report " + aXmlReportFileList, e );
             }
         }
 
         return testSuites;
     }
 
     public Map<String, String> getSummary( List<ReportTestSuite> suites )
     {
         Map<String, String> totalSummary = new HashMap<>();
 
         int totalNumberOfTests = 0;
 
         int totalNumberOfErrors = 0;
 
         int totalNumberOfFailures = 0;
 
         int totalNumberOfSkipped = 0;
 
         float totalElapsedTime = 0.0f;
 
         for ( ReportTestSuite suite : suites )
         {
             totalNumberOfTests += suite.getNumberOfTests();
 
             totalNumberOfErrors += suite.getNumberOfErrors();
 
             totalNumberOfFailures += suite.getNumberOfFailures();
 
             totalNumberOfSkipped += suite.getNumberOfSkipped();
 
             totalElapsedTime += suite.getTimeElapsed();
         }
 
         String totalPercentage =
             computePercentage( totalNumberOfTests, totalNumberOfErrors, totalNumberOfFailures, totalNumberOfSkipped );
 
         totalSummary.put( "totalTests", Integer.toString( totalNumberOfTests ) );
 
         totalSummary.put( "totalErrors", Integer.toString( totalNumberOfErrors ) );
 
         totalSummary.put( "totalFailures", Integer.toString( totalNumberOfFailures ) );
 
         totalSummary.put( "totalSkipped", Integer.toString( totalNumberOfSkipped ) );
 
         totalSummary.put( "totalElapsedTime", numberFormat.format( totalElapsedTime ) );
 
         totalSummary.put( "totalPercentage", totalPercentage );
 
         return totalSummary;
     }
 
     public NumberFormat getNumberFormat()
     {
         return numberFormat;
     }
 
     public Map<String, List<ReportTestSuite>> getSuitesGroupByPackage( List<ReportTestSuite> testSuitesList )
     {
         Map<String, List<ReportTestSuite>> suitePackage = new HashMap<>();
 
         for ( ReportTestSuite suite : testSuitesList )
         {
             List<ReportTestSuite> suiteList = new ArrayList<>();
 
             if ( suitePackage.get( suite.getPackageName() ) != null )
             {
                 suiteList = suitePackage.get( suite.getPackageName() );
             }
 
             suiteList.add( suite );
 
             suitePackage.put( suite.getPackageName(), suiteList );
         }
 
         return suitePackage;
     }
 
     public String computePercentage( int tests, int errors, int failures, int skipped )
     {
         float percentage =
             tests == 0 ? 0 : ( (float) ( tests - errors - failures - skipped ) / (float) tests ) * PCENT;
         return numberFormat.format( percentage );
     }
 
     public List<ReportTestCase> getFailureDetails( List<ReportTestSuite> testSuites )
     {
         List<ReportTestCase> failureDetails = new ArrayList<>();
 
         for ( ReportTestSuite suite : testSuites )
         {
             for ( ReportTestCase tCase : suite.getTestCases() )
             {
                 if ( !tCase.isSuccessful() )
                 {
                     failureDetails.add( tCase );
                 }
             }
         }
 
         return failureDetails;
     }
 
     /**
      * Returns {@code true} if the specified directory contains at least one report file.
      *
      * @param directory the directory
      * @return {@code true} if the specified directory contains at least one report file.
      */
     public static boolean hasReportFiles( File directory )
     {
         return directory != null && directory.isDirectory()
             && getIncludedFiles( directory, INCLUDES, EXCLUDES ).length != 0;
     }
 
     private static String[] getIncludedFiles( File directory, String includes, String excludes )
     {
         DirectoryScanner scanner = new DirectoryScanner();
 
         scanner.setBasedir( directory );
 
         scanner.setIncludes( split( includes, "," ) );
 
         scanner.setExcludes( split( excludes, "," ) );
 
         scanner.scan();
 
         return scanner.getIncludedFiles();
     }
 }