package org.apache.maven.wrapper.cli;
   
   /*
    * 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.HashMap;
  import java.util.Map;
  
  /**
   * Converter form properties.
   */
  public abstract class AbstractPropertiesCommandLineConverter
      extends AbstractCommandLineConverter<Map<String, String>>
  {
      protected abstract String getPropertyOption();
  
      protected abstract String getPropertyOptionDetailed();
  
      protected abstract String getPropertyOptionDescription();
  
      public void configure( CommandLineParser parser )
      {
          CommandLineOption option = parser.option( getPropertyOption(), getPropertyOptionDetailed() );
          option = option.hasArguments();
          option.hasDescription( getPropertyOptionDescription() );
      }
  
      protected Map<String, String> newInstance()
      {
          return new HashMap<String, String>();
      }
  
      public Map<String, String> convert( ParsedCommandLine options, Map<String, String> properties )
          throws CommandLineArgumentException
      {
          for ( String keyValueExpression : options.option( getPropertyOption() ).getValues() )
          {
              int pos = keyValueExpression.indexOf( "=" );
              if ( pos < 0 )
              {
                  properties.put( keyValueExpression, "" );
              }
              else
              {
                  properties.put( keyValueExpression.substring( 0, pos ), keyValueExpression.substring( pos + 1 ) );
              }
          }
          return properties;
      }
  }