package org.apache.maven.plugin.version;
   
   /*
    * 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.Collections;
  import java.util.List;
  
  import org.apache.maven.execution.MavenSession;
  import org.apache.maven.model.Model;
  import org.apache.maven.model.Plugin;
  import org.apache.maven.project.MavenProject;
  import org.sonatype.aether.RepositorySystemSession;
  import org.sonatype.aether.repository.RemoteRepository;
  
  /**
   * Collects settings required to resolve the version for a plugin.
   * 
   * @since 3.0
   * @author Benjamin Bentmann
   */
  public class DefaultPluginVersionRequest
      implements PluginVersionRequest
  {
  
      private String groupId;
  
      private String artifactId;
  
      private Model pom;
  
      private List<RemoteRepository> repositories = Collections.emptyList();
  
      private RepositorySystemSession session;
  
      /**
       * Creates an empty request.
       */
      public DefaultPluginVersionRequest()
      {
      }
  
      /**
       * Creates a request for the specified plugin by copying settings from the specified build session. If the session
       * has a current project, its plugin repositories will be used as well.
       * 
       * @param plugin The plugin for which to resolve a version, must not be {@code null}.
       * @param repositoryRequest The repository request to copy from, must not be {@code null}.
       */
      public DefaultPluginVersionRequest( Plugin plugin, MavenSession session )
      {
          setGroupId( plugin.getGroupId() );
          setArtifactId( plugin.getArtifactId() );
  
          setRepositorySession( session.getRepositorySession() );
  
          MavenProject project = session.getCurrentProject();
          if ( project != null )
          {
              setRepositories( project.getRemotePluginRepositories() );
          }
      }
  
      /**
       * Creates a request for the specified plugin using the given repository session and plugin repositories.
       * 
       * @param plugin The plugin for which to resolve a version, must not be {@code null}.
       * @param session The repository session to use, must not be {@code null}.
       * @param repositories The plugin repositories to query, may be {@code null}.
       */
      public DefaultPluginVersionRequest( Plugin plugin, RepositorySystemSession session, List<RemoteRepository> repositories )
      {
          setGroupId( plugin.getGroupId() );
          setArtifactId( plugin.getArtifactId() );
  
          setRepositorySession( session );
  
          setRepositories( repositories );
      }
  
      public String getGroupId()
      {
          return groupId;
     }
 
     public DefaultPluginVersionRequest setGroupId( String groupId )
     {
         this.groupId = groupId;
 
         return this;
     }
 
     public String getArtifactId()
     {
         return artifactId;
     }
 
     public DefaultPluginVersionRequest setArtifactId( String artifactId )
     {
         this.artifactId = artifactId;
 
         return this;
     }
 
     public Model getPom()
     {
         return pom;
     }
 
     public DefaultPluginVersionRequest setPom( Model pom )
     {
         this.pom = pom;
 
         return this;
     }
 
     public List<RemoteRepository> getRepositories()
     {
         return repositories;
     }
 
     public DefaultPluginVersionRequest setRepositories( List<RemoteRepository> repositories )
     {
         if ( repositories != null )
         {
             this.repositories = repositories;
         }
         else
         {
             this.repositories = Collections.emptyList();
         }
 
         return this;
     }
 
     public RepositorySystemSession getRepositorySession()
     {
         return session;
     }
 
     public DefaultPluginVersionRequest setRepositorySession( RepositorySystemSession session )
     {
         this.session = session;
 
         return this;
     }
 
 }