/*
    * 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.
   */
  
  package org.apache.maven.plugin.jira;
  
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.issues.Issue;
  
  import java.util.List;
  
  /**
   * Jira downloader that uses REST or RSS, depending.
   * This code is not very attractive. However, JIRA has
   * supported REST for a very long time, and so the
   * fallback is only relevant for people with very old
   * copies of JIRA.
   */
  public class AdaptiveJiraDownloader extends AbstractJiraDownloader
  {
      private AbstractJiraDownloader effectiveDownloader;
      private boolean forceClassic;
  
  
      public void doExecute()
          throws Exception
      {
          effectiveDownloader = new RestJiraDownloader();
          copySettings( effectiveDownloader );
          try
          {
              effectiveDownloader.doExecute();
          }
          catch( RestJiraDownloader.NoRest nre )
          {
              getLog().info( "Falling back to RSS for issue download: " + nre.getMessage() );
              effectiveDownloader = new ClassicJiraDownloader();
              copySettings( effectiveDownloader );
              effectiveDownloader.doExecute();
          }
      }
      
      private void copySettings( AbstractJiraDownloader target )
      {
          target.setLog( getLog() );
          target.setMavenProject( project );
          target.setOutput( output );
          target.setNbEntries( nbEntriesMax );
          target.setComponent( component );
          target.setFixVersionIds( fixVersionIds );
          target.setStatusIds( statusIds );
          target.setResolutionIds( resolutionIds );
          target.setPriorityIds( priorityIds );
          target.setSortColumnNames( sortColumnNames );
          target.setFilter( filter );
          target.setJiraDatePattern( jiraDatePattern );
          target.setJiraUser( jiraUser );
          target.setJiraPassword( jiraPassword );
          target.setTypeIds( typeIds );
          target.setWebUser( webUser );
          target.setWebPassword( webPassword );
          target.setSettings( settings );
          target.setUseJql( useJql );
          target.setOnlyCurrentVersion( onlyCurrentVersion );
          target.setVersionPrefix( versionPrefix );
      }
  
  
      public List<Issue> getIssueList()
          throws MojoExecutionException
      {
          return effectiveDownloader.getIssueList();
      }
  
      public boolean isForceClassic()
      {
          return forceClassic;
      }
  
      public void setForceClassic( boolean forceClassic )
      {
          this.forceClassic = forceClassic;
      }
  }