package org.apache.maven.project;
   
   /*
    * 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.
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  import static org.hamcrest.Matchers.containsString;
  import static org.hamcrest.Matchers.empty;
  import static org.hamcrest.Matchers.hasKey;
  import static org.hamcrest.Matchers.is;
  import static org.junit.Assert.assertThat;
  
  import java.io.File;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  import java.util.Properties;
  
  import org.apache.maven.AbstractCoreMavenComponentTestCase;
  import org.apache.maven.artifact.InvalidArtifactRTException;
  import org.apache.maven.execution.MavenSession;
  import org.apache.maven.model.building.FileModelSource;
  import org.apache.maven.model.building.ModelBuildingRequest;
  import org.apache.maven.model.building.ModelSource;
  import org.apache.maven.shared.utils.io.FileUtils;
  
  import com.google.common.io.Files;
  
  public class ProjectBuilderTest
      extends AbstractCoreMavenComponentTestCase
  {
      @Override
      protected String getProjectsDirectory()
      {
          return "src/test/projects/project-builder";
      }
  
      public void testSystemScopeDependencyIsPresentInTheCompileClasspathElements()
          throws Exception
      {
          File pom = getProject( "it0063" );
  
          Properties eps = new Properties();
          eps.setProperty( "jre.home", new File( pom.getParentFile(), "jdk/jre" ).getPath() );
  
          MavenSession session = createMavenSession( pom, eps );
          MavenProject project = session.getCurrentProject();
  
          // Here we will actually not have any artifacts because the ProjectDependenciesResolver is not involved here. So
          // right now it's not valid to ask for artifacts unless plugins require the artifacts.
  
          project.getCompileClasspathElements();
      }
  
      public void testBuildFromModelSource()
          throws Exception
      {
          File pomFile = new File( "src/test/resources/projects/modelsource/module01/pom.xml" );
          MavenSession mavenSession = createMavenSession( pomFile );
          ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
          configuration.setRepositorySession( mavenSession.getRepositorySession() );
          ModelSource modelSource = new FileModelSource( pomFile );
          ProjectBuildingResult result =
              lookup( org.apache.maven.project.ProjectBuilder.class ).build( modelSource, configuration );
  
          assertNotNull( result.getProject().getParentFile() );
      }
  
      public void testVersionlessManagedDependency()
          throws Exception
      {
          File pomFile = new File( "src/test/resources/projects/versionless-managed-dependency.xml" );
          MavenSession mavenSession = createMavenSession( null );
          ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
          configuration.setRepositorySession( mavenSession.getRepositorySession() );
  
          try
          {
              lookup( org.apache.maven.project.ProjectBuilder.class ).build( pomFile, configuration );
              fail();
          }
          catch ( ProjectBuildingException e )
          {
              // this is expected
         }
     }
 
     public void testResolveDependencies()
         throws Exception
     {
         File pomFile = new File( "src/test/resources/projects/basic-resolveDependencies.xml" );
         MavenSession mavenSession = createMavenSession( null );
         ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
         configuration.setRepositorySession( mavenSession.getRepositorySession() );
         configuration.setResolveDependencies( true );
 
         // single project build entry point
         ProjectBuildingResult result = lookup( org.apache.maven.project.ProjectBuilder.class ).build( pomFile, configuration );
         assertEquals( 1, result.getProject().getArtifacts().size() );
         // multi projects build entry point
         List<ProjectBuildingResult> results = lookup( org.apache.maven.project.ProjectBuilder.class ).build( Collections.singletonList( pomFile ), false, configuration );
         assertEquals( 1, results.size() );
         MavenProject mavenProject = results.get( 0 ).getProject();
         assertEquals( 1, mavenProject.getArtifacts().size() );
     }
 
     public void testDontResolveDependencies()
         throws Exception
     {
         File pomFile = new File( "src/test/resources/projects/basic-resolveDependencies.xml" );
         MavenSession mavenSession = createMavenSession( null );
         ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
         configuration.setRepositorySession( mavenSession.getRepositorySession() );
         configuration.setResolveDependencies( false );
 
         // single project build entry point
         ProjectBuildingResult result = lookup( org.apache.maven.project.ProjectBuilder.class ).build( pomFile, configuration );
         assertEquals( 0, result.getProject().getArtifacts().size() );
         // multi projects build entry point
         List<ProjectBuildingResult> results = lookup( org.apache.maven.project.ProjectBuilder.class ).build( Collections.singletonList( pomFile ), false, configuration );
         assertEquals( 1, results.size() );
         MavenProject mavenProject = results.get( 0 ).getProject();
         assertEquals( 0, mavenProject.getArtifacts().size() );
     }
 
     public void testReadModifiedPoms() throws Exception {
         String initialValue = System.setProperty( DefaultProjectBuilder.DISABLE_GLOBAL_MODEL_CACHE_SYSTEM_PROPERTY, Boolean.toString( true ) );
         // TODO a similar test should be created to test the dependency management (basically all usages
         // of DefaultModelBuilder.getCache() are affected by MNG-6530
         File tempDir = Files.createTempDir();
         FileUtils.copyDirectoryStructure (new File( "src/test/resources/projects/grandchild-check"), tempDir );
         try
         {
             MavenSession mavenSession = createMavenSession( null );
             ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
             configuration.setRepositorySession( mavenSession.getRepositorySession() );
             org.apache.maven.project.ProjectBuilder projectBuilder = lookup( org.apache.maven.project.ProjectBuilder.class );
             File child = new File( tempDir, "child/pom.xml" );
             // build project once
             projectBuilder.build( child, configuration );
             // modify parent
             File parent = new File( tempDir, "pom.xml" );
             String parentContent = FileUtils.fileRead( parent );
             parentContent = parentContent.replaceAll( "<packaging>pom</packaging>",
             		"<packaging>pom</packaging><properties><addedProperty>addedValue</addedProperty></properties>" );
             FileUtils.fileWrite( parent, "UTF-8", parentContent );
             // re-build pom with modified parent
             ProjectBuildingResult result = projectBuilder.build( child, configuration );
             assertThat( result.getProject().getProperties(), hasKey( (Object) "addedProperty" ) );
         }
         finally
         {
             if ( initialValue == null )
             {
                 System.clearProperty( DefaultProjectBuilder.DISABLE_GLOBAL_MODEL_CACHE_SYSTEM_PROPERTY );
             }
             else
             {
                 System.setProperty( DefaultProjectBuilder.DISABLE_GLOBAL_MODEL_CACHE_SYSTEM_PROPERTY, initialValue );
             }
             FileUtils.deleteDirectory( tempDir );
         }
     }
 
     public void testReadErroneousMavenProjectContainsReference()
         throws Exception
     {
         File pomFile = new File( "src/test/resources/projects/artifactMissingVersion.xml" ).getAbsoluteFile();
         MavenSession mavenSession = createMavenSession( null );
         ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
         configuration.setValidationLevel( ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL );
         configuration.setRepositorySession( mavenSession.getRepositorySession() );
         org.apache.maven.project.ProjectBuilder projectBuilder =
             lookup( org.apache.maven.project.ProjectBuilder.class );
 
         // single project build entry point
         try
         {
             projectBuilder.build( pomFile, configuration );
         }
         catch ( ProjectBuildingException ex )
         {
             assertEquals( 1, ex.getResults().size() );
             MavenProject project = ex.getResults().get( 0 ).getProject();
             assertNotNull( project );
             assertEquals( "testArtifactMissingVersion", project.getArtifactId() );
             assertEquals( pomFile, project.getFile() );
         }
 
         // multi projects build entry point
         try
         {
             projectBuilder.build( Collections.singletonList( pomFile ), false, configuration );
         }
         catch ( ProjectBuildingException ex )
         {
             assertEquals( 1, ex.getResults().size() );
             MavenProject project = ex.getResults().get( 0 ).getProject();
             assertNotNull( project );
             assertEquals( "testArtifactMissingVersion", project.getArtifactId() );
             assertEquals( pomFile, project.getFile() );
         }
     }
 
     public void testReadInvalidPom()
         throws Exception
     {
         File pomFile = new File( "src/test/resources/projects/badPom.xml" ).getAbsoluteFile();
         MavenSession mavenSession = createMavenSession( null );
         ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
         configuration.setValidationLevel( ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL );
         configuration.setRepositorySession( mavenSession.getRepositorySession() );
         org.apache.maven.project.ProjectBuilder projectBuilder =
             lookup( org.apache.maven.project.ProjectBuilder.class );
 
         // single project build entry point
         try
         {
             projectBuilder.build( pomFile, configuration );
         }
         catch ( InvalidArtifactRTException iarte )
         {
             assertThat( iarte.getMessage(), containsString( "The groupId cannot be empty." ) );
         }
 
         // multi projects build entry point
         try
         {
             projectBuilder.build( Collections.singletonList( pomFile ), false, configuration );
         }
         catch ( ProjectBuildingException ex )
         {
             assertEquals( 1, ex.getResults().size() );
             MavenProject project = ex.getResults().get( 0 ).getProject();
             assertNotNull( project );
             assertNotSame( 0, ex.getResults().get( 0 ).getProblems().size() );
         }
     }
 
     public void testReadParentAndChildWithRegularVersionSetParentFile()
         throws Exception
     {
         List<File> toRead = new ArrayList<>( 2 );
         File parentPom = getProject( "MNG-6723" );
         toRead.add( parentPom );
         toRead.add( new File( parentPom.getParentFile(), "child/pom.xml" ) );
         MavenSession mavenSession = createMavenSession( null );
         ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
         configuration.setValidationLevel( ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL );
         configuration.setRepositorySession( mavenSession.getRepositorySession() );
         org.apache.maven.project.ProjectBuilder projectBuilder =
             lookup( org.apache.maven.project.ProjectBuilder.class );
 
         // read poms separately
         boolean parentFileWasFoundOnChild = false;
         for ( File file : toRead )
         {
             List<ProjectBuildingResult> results = projectBuilder.build( Collections.singletonList( file ), false, configuration );
             assertResultShowNoError( results );
             MavenProject project = findChildProject( results );
             if ( project != null )
             {
                 assertEquals( parentPom, project.getParentFile() );
                 parentFileWasFoundOnChild = true;
             }
         }
         assertTrue( parentFileWasFoundOnChild );
 
         // read projects together
         List<ProjectBuildingResult> results = projectBuilder.build( toRead, false, configuration );
         assertResultShowNoError( results );
         assertEquals( parentPom, findChildProject( results ).getParentFile() );
         Collections.reverse( toRead );
         results = projectBuilder.build( toRead, false, configuration );
         assertResultShowNoError( results );
         assertEquals( parentPom, findChildProject( results ).getParentFile() );
     }
 
     private MavenProject findChildProject( List<ProjectBuildingResult> results )
     {
         for ( ProjectBuildingResult result : results )
         {
             if ( result.getPomFile().getParentFile().getName().equals( "child" ) )
             {
                 return result.getProject();
             }
         }
         return null;
     }
 
     private void assertResultShowNoError(List<ProjectBuildingResult> results)
     {
         for ( ProjectBuildingResult result : results )
         {
             assertThat( result.getProblems(), is( empty() ) );
             assertNotNull( result.getProject() );
         }
     }
 
     public void testBuildProperties()
             throws Exception
     {
         File file = new File( getProject( "MNG-6716" ).getParentFile(), "project/pom.xml" );
         MavenSession mavenSession = createMavenSession( null );
         ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
         configuration.setRepositorySession( mavenSession.getRepositorySession() );
         configuration.setResolveDependencies( true );
         List<ProjectBuildingResult> result = projectBuilder.build( Collections.singletonList(file), true, configuration );
         MavenProject project = result.get(0).getProject();
         // verify a few typical parameters are not duplicated
         assertEquals( 1, project.getTestCompileSourceRoots().size() );
         assertEquals( 1, project.getCompileSourceRoots().size() );
         assertEquals( 1, project.getMailingLists().size() );
         assertEquals( 1, project.getResources().size() );
     }
 }