package org.apache.maven.plugin.prefix;
   
   /*
    * 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.project.MavenProject;
  import org.sonatype.aether.RepositorySystemSession;
  import org.sonatype.aether.repository.RemoteRepository;
  
  /**
   * Collects settings required to resolve a plugin prefix.
   * 
   * @since 3.0
   * @author Benjamin Bentmann
   */
  public class DefaultPluginPrefixRequest
      implements PluginPrefixRequest
  {
  
      private String prefix;
  
      private List<String> pluginGroups = Collections.emptyList();
  
      private Model pom;
  
      private List<RemoteRepository> repositories = Collections.emptyList();
  
      private RepositorySystemSession session;
  
      /**
       * Creates an empty request.
       */
      public DefaultPluginPrefixRequest()
      {
      }
  
      /**
       * Creates a request for the specified plugin prefix and build session. The provided build session will be used to
       * configure repository settings. If the session has a current project, its plugin repositories and model will be
       * used as well.
       * 
       * @param prefix The plugin prefix to resolve, must not be {@code null}.
       * @param session The build session from which to derive further settings, must not be {@code null}.
       */
      public DefaultPluginPrefixRequest( String prefix, MavenSession session )
      {
          setPrefix( prefix );
  
          setRepositorySession( session.getRepositorySession() );
  
          MavenProject project = session.getCurrentProject();
          if ( project != null )
          {
              setRepositories( project.getRemotePluginRepositories() );
              setPom( project.getModel() );
          }
  
          setPluginGroups( session.getPluginGroups() );
      }
  
      public String getPrefix()
      {
          return prefix;
      }
  
      public DefaultPluginPrefixRequest setPrefix( String prefix )
      {
          this.prefix = prefix;
  
          return this;
      }
  
      public List<String> getPluginGroups()
      {
          return pluginGroups;
      }
  
      public DefaultPluginPrefixRequest setPluginGroups( List<String> pluginGroups )
     {
         if ( pluginGroups != null )
         {
             this.pluginGroups = pluginGroups;
         }
         else
         {
             this.pluginGroups = Collections.emptyList();
         }
 
         return this;
     }
 
     public Model getPom()
     {
         return pom;
     }
 
     public DefaultPluginPrefixRequest setPom( Model pom )
     {
         this.pom = pom;
 
         return this;
     }
 
     public List<RemoteRepository> getRepositories()
     {
         return repositories;
     }
 
     public DefaultPluginPrefixRequest setRepositories( List<RemoteRepository> repositories )
     {
         if ( repositories != null )
         {
             this.repositories = repositories;
         }
         else
         {
             this.repositories = Collections.emptyList();
         }
 
         return this;
     }
 
     public RepositorySystemSession getRepositorySession()
     {
         return session;
     }
 
     public DefaultPluginPrefixRequest setRepositorySession( RepositorySystemSession session )
     {
         this.session = session;
 
         return this;
     }
 
 }