package org.apache.maven.shared.filtering;
   
   /*
    * 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.io.Reader;
  import java.util.Collections;
  import java.util.List;
  
  import javax.annotation.Nonnull;
  
  import org.apache.maven.execution.MavenSession;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.shared.utils.io.FileUtils.FilterWrapper;
  import org.codehaus.plexus.component.annotations.Component;
  
  /**
   * @author Kristian Rosenvold
   */
  @Component( role = org.apache.maven.shared.filtering.MavenReaderFilter.class, hint = "default" )
  public class DefaultMavenReaderFilter
      extends BaseFilter
      implements MavenReaderFilter
  {
      @Override
      @Nonnull
      public Reader filter( @Nonnull Reader from, boolean filtering, MavenProject mavenProject, List<String> filters,
                            boolean escapedBackslashesInFilePath, MavenSession mavenSession )
                                throws MavenFilteringException
      {
          MavenResourcesExecution mre = new MavenResourcesExecution();
          mre.setMavenProject( mavenProject );
          mre.setFileFilters( filters );
          mre.setEscapeWindowsPaths( escapedBackslashesInFilePath );
          mre.setMavenSession( mavenSession );
          mre.setInjectProjectBuildFilters( true );
  
          List<FilterWrapper> filterWrappers = getDefaultFilterWrappers( mre );
          return filter( from, filtering, filterWrappers );
      }
  
      @Override
      @Nonnull
      public Reader filter( @Nonnull MavenReaderFilterRequest mavenFileFilterRequest )
          throws MavenFilteringException
      {
          List<FilterWrapper> filterWrappers = getDefaultFilterWrappers( mavenFileFilterRequest );
          return filter( mavenFileFilterRequest.getFrom(), mavenFileFilterRequest.isFiltering(), filterWrappers );
      }
  
      @Override
      @Nonnull
      public Reader filter( @Nonnull Reader from, boolean filtering, @Nonnull List<FilterWrapper> filterWrappers )
      {
          return filterWrap( from, filtering ? filterWrappers : Collections.<FilterWrapper>emptyList() );
      }
  
      @Nonnull
      private static Reader filterWrap( @Nonnull Reader from, @Nonnull Iterable<FilterWrapper> wrappers )
      {
          Reader reader = from;
          for ( FilterWrapper wrapper : wrappers )
          {
              reader = wrapper.getReader( reader );
          }
          return reader;
      }
  
  }