package org.apache.maven.plugin.issues;
   
   /*
    * 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 org.apache.commons.collections.bidimap.DualHashBidiMap;
  import org.apache.maven.plugin.logging.Log;
  
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  
  /**
   * A helper class for generation of reports based on issues.
   *
   * @author Dennis Lundberg
   * @version $Id: IssuesReportHelper.java 1098344 2011-05-01 14:49:27Z dennisl $
   * @since 2.4
   */
  public class IssuesReportHelper
  {
      public static final int COLUMN_ASSIGNEE = 0;
  
      public static final int COLUMN_COMPONENT = 1;
  
      public static final int COLUMN_CREATED = 2;
  
      public static final int COLUMN_FIX_VERSION = 3;
  
      public static final int COLUMN_ID = 4;
  
      public static final int COLUMN_KEY = 5;
  
      public static final int COLUMN_PRIORITY = 6;
  
      public static final int COLUMN_REPORTER = 7;
  
      public static final int COLUMN_RESOLUTION = 8;
  
      public static final int COLUMN_STATUS = 9;
  
      public static final int COLUMN_SUMMARY = 10;
  
      public static final int COLUMN_TYPE = 11;
  
      public static final int COLUMN_UPDATED = 12;
  
      public static final int COLUMN_VERSION = 13;
  
      /**
       * Get a list of id:s for the columns that are to be included in the report.
       *
       * @param columnNames The names of the columns
       * @param allColumns A mapping from column name to column id
       * @return A List of column id:s
       */
      public static List<Integer> getColumnIds( String columnNames, Map<String,Integer> allColumns )
      {
          return getColumnIds( columnNames, allColumns, null, null );
      }
  
      /**
       * Get a list of id:s for the columns that are to be included in the report.
       * This method also handles deprecated column names, which will still work.
       * If deprecated column names are used they generate a warning, indicating
       * the replacement column name.
       *
       * @param columnNames The names of the columns
       * @param allColumns A mapping from column name to column id
       * @param deprecatedColumns A mapping from deprecated column name to column id
       * @param log A log
       * @return A List of column id:s
       */
      public static List<Integer> getColumnIds( String columnNames, Map<String,Integer> allColumns,
                                                Map<String,Integer> deprecatedColumns, Log log )
      {
          DualHashBidiMap bidiColumns = null;
          List<Integer> columnIds = new ArrayList<Integer>();
          String[] columnNamesArray = columnNames.split( "," );
  
          if ( deprecatedColumns != null )
          {
             bidiColumns = new DualHashBidiMap( allColumns );
         }
 
         // Loop through the names of the columns, to validate each of them and add their id to the list
         for ( int i = 0; i < columnNamesArray.length; i++ )
         {
             String columnName = columnNamesArray[i].trim();
             if ( allColumns.containsKey( columnName ) )
             {
                 columnIds.add( allColumns.get( columnName ) );
             }
             else if ( deprecatedColumns != null && deprecatedColumns.containsKey( columnName ) )
             {
                 Integer columnId = deprecatedColumns.get( columnName );
                 columnIds.add( columnId );
                 if ( log != null )
                 {
                     log.warn( "The columnName '" + columnName + "' has been deprecated." + " Please use "
                         + "the columnName '" + bidiColumns.getKey( columnId ) + "' instead." );
                 }
             }
         }
         return columnIds;
     }
 
     /**
      * Print a list of values separated by commas.
      *
      * @param values The values to print
      * @return A nicely formatted string of values.
      */
     public static String printValues( List<String> values )
     {
         StringBuffer sb = new StringBuffer();
         if ( values != null )
         {
             Iterator<String> iterator = values.iterator();
             while ( iterator.hasNext() )
             {
                 String value = iterator.next();
                 sb.append( value );
                 if ( iterator.hasNext() )
                 {
                     sb.append( ", " );
                 }
             }
         }
         return sb.toString();
     }
 
     /**
      * Convert a List of Integers to an int array.
      *
      * @param list The List to convert
      * @return An in array
      */
     public static int[] toIntArray( List<Integer> list )
     {
         int[] intArray = new int[list.size()];
         for ( int j = 0; j < intArray.length; j++ )
         {
             intArray[j] = ( list.get( j ) ).intValue();
         }
         return intArray;
     }
 }