package org.apache.maven.model.transform;
   
   /*
    * 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.List;
  import java.util.function.Function;
  
  import org.apache.maven.model.transform.pull.NodeBufferingParser;
  import org.codehaus.plexus.util.xml.pull.XmlPullParser;
  
  /**
   * Resolves all ci-friendly properties occurrences between version-tags
   *
   * @author Robert Scholte
   * @author Guillaume Nodet
   * @since 4.0.0
   */
  class CiFriendlyXMLFilter
      extends NodeBufferingParser
  {
      private final boolean replace;
  
      private Function<String, String> replaceChain = Function.identity();
  
      CiFriendlyXMLFilter( XmlPullParser xmlPullParser, boolean replace )
      {
          super( xmlPullParser, "version" );
          this.replace = replace;
      }
  
      public CiFriendlyXMLFilter setChangelist( String changelist )
      {
          replaceChain = replaceChain.andThen( t -> t.replace( "${changelist}", changelist ) );
          return this;
      }
  
      public CiFriendlyXMLFilter setRevision( String revision )
      {
          replaceChain = replaceChain.andThen( t -> t.replace( "${revision}", revision ) );
          return this;
      }
  
      public CiFriendlyXMLFilter setSha1( String sha1 )
      {
          replaceChain = replaceChain.andThen( t -> t.replace( "${sha1}", sha1 ) );
          return this;
      }
  
      /**
       * @return {@code true} is any of the ci properties is set, otherwise {@code false}
       */
      public boolean isSet()
      {
          return !replaceChain.equals( Function.identity() );
      }
  
      @Override
      protected void process( List<Event> buffer )
      {
          for ( Event event : buffer )
          {
              if ( event.event == TEXT && replace && event.text.contains( "${" ) )
              {
                  event.text = replaceChain.apply( event.text );
              }
              pushEvent( event );
          }
      }
  
  }