package org.apache.maven.report.projectinfo;

 /*

  * 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.FileOutputStream;

 import java.io.IOException;

 import java.io.InputStream;

 import java.io.InputStreamReader;

 import java.io.LineNumberReader;

 import java.util.List;

 import java.util.Locale;

 import org.apache.maven.artifact.Artifact;

 import org.apache.maven.artifact.factory.ArtifactFactory;

 import org.apache.maven.artifact.manager.WagonManager;

 import org.apache.maven.artifact.metadata.ArtifactMetadataSource;

 import org.apache.maven.artifact.repository.metadata.RepositoryMetadataManager;

 import org.apache.maven.artifact.resolver.ArtifactCollector;

 import org.apache.maven.artifact.resolver.filter.ArtifactFilter;

 import org.apache.maven.artifact.resolver.filter.ScopeArtifactFilter;

 import org.apache.maven.project.MavenProjectBuilder;

 import org.apache.maven.report.projectinfo.dependencies.Dependencies;

 import org.apache.maven.report.projectinfo.dependencies.DependenciesReportConfiguration;

 import org.apache.maven.report.projectinfo.dependencies.RepositoryUtils;

 import org.apache.maven.report.projectinfo.dependencies.renderer.DependenciesRenderer;

 import org.apache.maven.settings.Settings;

 import org.apache.maven.shared.dependency.tree.DependencyNode;

 import org.apache.maven.shared.dependency.tree.DependencyTreeBuilder;

 import org.apache.maven.shared.dependency.tree.DependencyTreeBuilderException;

 import org.apache.maven.shared.jar.classes.JarClassesAnalysis;

 import org.codehaus.plexus.util.IOUtil;

 import org.codehaus.plexus.util.ReaderFactory;

 /**

  * Generates the Project Dependencies report.

  *

  * @author <a href="mailto:jason@maven.org">Jason van Zyl </a>

  * @author <a href="mailto:vincent.siveton@gmail.com">Vincent Siveton </a>

  * @version $Id: DependenciesReport.java 940323 2010-05-02 22:07:05Z hboutemy $

  * @since 2.0

  * @goal dependencies

  * @requiresDependencyResolution test

  */

 public class DependenciesReport

     extends AbstractProjectInfoReport

 {

     /** Images resources dir */

     private static final String RESOURCES_DIR = "org/apache/maven/report/projectinfo/resources";

     // ----------------------------------------------------------------------

     // Mojo components

     // ----------------------------------------------------------------------

     /**

      * Maven Project Builder component.

      *

      * @component

      */

     private MavenProjectBuilder mavenProjectBuilder;

     /**

      * Artifact metadata source component.

      *

      * @component

      */

     protected ArtifactMetadataSource artifactMetadataSource;

     /**

      * Artifact collector component.

      *

      * @component

      */

     private ArtifactCollector collector;

     /**

      * Wagon manager component.

      *

      * @since 2.1

      * @component

      */

     private WagonManager wagonManager;

     /**

      * Dependency tree builder component.

      *

      * @since 2.1

      * @component

      */

     private DependencyTreeBuilder dependencyTreeBuilder;

     /**

      * Jar classes analyzer component.

      *

      * @since 2.1

      * @component

      */

     private JarClassesAnalysis classesAnalyzer;

     /**

      * Repository metadata component.

      *

      * @since 2.1

      * @component

      */

     private RepositoryMetadataManager repositoryMetadataManager;

     /**

      * Maven Artifact Factory component.

      *

      * @component

      * @since 2.1

      */

     private ArtifactFactory artifactFactory;

     // ----------------------------------------------------------------------

     // Mojo parameters

     // ----------------------------------------------------------------------

     /**

      * The current user system settings for use in Maven.

      *

      * @since 2.1

      * @parameter expression="${settings}"

      * @required

      * @readonly

      */

     private Settings settings;

     /**

      * Remote repositories used for the project.

      *

      * @since 2.1

      * @parameter expression="${project.remoteArtifactRepositories}"

      * @required

      * @readonly

      */

     private List remoteRepositories;

     /**

      * Display file details for each dependency, such as: file size, number of

      * classes, number of packages etc.

      *

      * @since 2.1

      * @parameter expression="${dependency.details.enabled}" default-value="true"

      */

     private boolean dependencyDetailsEnabled;

     /**

      * Display the repository locations of the dependencies. If Maven is configured to be offline, this parameter

      * will be ignored.

      *

      * @since 2.1

      * @parameter expression="${dependency.locations.enabled}" default-value="true"

      */

     private boolean dependencyLocationsEnabled;

     // ----------------------------------------------------------------------

     // Public methods

     // ----------------------------------------------------------------------

     /** {@inheritDoc} */

     public void executeReport( Locale locale )

     {

         if ( settings.isOffline() && dependencyLocationsEnabled )

         {

             getLog().warn( "The parameter 'dependencyLocationsEnabled' is ignored in offline mode." );

             dependencyLocationsEnabled = false;

         }

         try

         {

             copyResources( new File( getOutputDirectory() ) );

         }

         catch ( IOException e )

         {

             getLog().error( "Cannot copy ressources", e );

         }

         RepositoryUtils repoUtils =

             new RepositoryUtils( getLog(), wagonManager, settings,

                                  mavenProjectBuilder, factory, resolver, project.getRemoteArtifactRepositories(),

                                  project.getPluginArtifactRepositories(), localRepository,

                                  repositoryMetadataManager );

         DependencyNode dependencyTreeNode = resolveProject();

         Dependencies dependencies = new Dependencies( project, dependencyTreeNode, classesAnalyzer );

         DependenciesReportConfiguration config =

             new DependenciesReportConfiguration( dependencyDetailsEnabled, dependencyLocationsEnabled );

         DependenciesRenderer r =

             new DependenciesRenderer( getSink(), locale, i18n, getLog(), settings, dependencies,

                                       dependencyTreeNode, config, repoUtils, artifactFactory, mavenProjectBuilder,

                                       remoteRepositories, localRepository );

         r.render();

     }

     /** {@inheritDoc} */

     public String getOutputName()

     {

         return "dependencies";

     }

     protected String getI18Nsection()

     {

         return "dependencies";

     }

     // ----------------------------------------------------------------------

     // Private methods

     // ----------------------------------------------------------------------

     /**

      * @return resolve the dependency tree

      */

     private DependencyNode resolveProject()

     {

         try

         {

             ArtifactFilter artifactFilter = new ScopeArtifactFilter( Artifact.SCOPE_TEST );

             return dependencyTreeBuilder.buildDependencyTree( project, localRepository, factory,

                                                               artifactMetadataSource, artifactFilter, collector );

         }

         catch ( DependencyTreeBuilderException e )

         {

             getLog().error( "Unable to build dependency tree.", e );

             return null;

         }

     }

     /**

      * @param outputDirectory the wanted output directory

      * @throws IOException if any

      */

     private void copyResources( File outputDirectory )

         throws IOException

     {

         InputStream resourceList =

             getClass().getClassLoader().getResourceAsStream( RESOURCES_DIR + "/resources.txt" );

         if ( resourceList != null )

         {

             LineNumberReader reader =

                 new LineNumberReader( new InputStreamReader( resourceList, ReaderFactory.US_ASCII ) );

             String line = reader.readLine();

             while ( line != null )

             {

                 InputStream is = getClass().getClassLoader().getResourceAsStream( RESOURCES_DIR + "/" + line );

                 if ( is == null )

                 {

                     throw new IOException( "The resource " + line + " doesn't exist." );

                 }

                 File outputFile = new File( outputDirectory, line );

                 if ( !outputFile.getParentFile().exists() )

                 {

                     outputFile.getParentFile().mkdirs();

                 }

                 FileOutputStream w = new FileOutputStream( outputFile );

                 IOUtil.copy( is, w );

                 IOUtil.close( is );

                 IOUtil.close( w );

                 line = reader.readLine();

             }

         }

     }

 }