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.util.ArrayList;
  import java.util.LinkedHashSet;
  import java.util.List;
  import java.util.Properties;
  
  import org.apache.maven.execution.MavenSession;
  import org.apache.maven.project.MavenProject;
  
  /**
   * @since 1.0-beta-3
   */
  public class AbstractMavenFilteringRequest
  {
  
      private MavenProject mavenProject;
  
      private List<String> filters;
  
      private boolean escapeWindowsPaths = true;
  
      private MavenSession mavenSession;
  
      /**
       * List of Strings considered as expressions which contains values in the project/pom: pom project Default value
       * will be pom and project.
       *
       * @since 1.0-beta-2
       */
      private List<String> projectStartExpressions = new ArrayList<String>();
  
      /**
       * String which will escape interpolation mechanism: foo \${foo.bar} -> foo ${foo.bar}
       *
       * @since 1.0-beta-2
       */
      private String escapeString;
  
      /**
       * @since 1.0-beta-3
       */
      private Properties additionalProperties;
  
      /**
       * @since 1.0-beta-3
       */
      private boolean injectProjectBuildFilters = false;
  
      /**
       * Set of expression delimiter specifications to use during filtering. Delimiter specifications are given in the
       * form 'BEGIN*END' or, for symmetrical delimiters, simply 'TOKEN'. The default values are '${*}' and '@'.
       * 
       * @since 1.0-beta-3
       */
      private LinkedHashSet<String> delimiters = new LinkedHashSet<String>();
  
      /**
       * Do not stop trying to filter tokens when reaching EOL.
       *
       * @since 1.0
       */
      private boolean supportMultiLineFiltering;
  
      /**
       * Create instance.
       */
      protected AbstractMavenFilteringRequest()
      {
          initDefaults();
      }
  
      /**
       * Create instance with given parameters
       * 
       * @param mavenProject The instance of MavenProject.
       * @param filters The list of filters.
       * @param mavenSession The MavenSession.
       */
      protected AbstractMavenFilteringRequest( MavenProject mavenProject, List<String> filters,
                                              MavenSession mavenSession )
     {
         initDefaults();
         this.mavenProject = mavenProject;
         this.filters = filters;
         this.mavenSession = mavenSession;
     }
 
     private void initDefaults()
     {
         projectStartExpressions.add( "pom" );
         projectStartExpressions.add( "project" );
 
         delimiters.add( "${*}" );
         delimiters.add( "@" );
     }
 
     /**
      * @return The MavenProject
      */
     public MavenProject getMavenProject()
     {
         return mavenProject;
     }
 
     /**
      * Set the MavenProject.
      * 
      * @param mavenProject The MavenProject to be set.
      */
     public void setMavenProject( MavenProject mavenProject )
     {
         this.mavenProject = mavenProject;
     }
 
     /**
      * The list of filters.
      * 
      * @return The list of currently set filters.
      */
     public List<String> getFilters()
     {
         return filters;
     }
 
     /**
      * Set the filters.
      * 
      * @param filters Set the list of filters
      */
     public void setFilters( List<String> filters )
     {
         this.filters = filters;
     }
 
     /**
      * Alias for {@link #getFilters()}.
      * 
      * @return The list of filters.
      */
     public List<String> getFileFilters()
     {
         return getFilters();
     }
 
     /**
      * Alias for {@link #setFilters(List)}
      * 
      * @param paramfilters The list of filters to be set.
      */
     public void setFileFilters( List<String> paramfilters )
     {
         setFilters( paramfilters );
     }
 
     /**
      * @since 1.0-beta-3
      * @return true if escape is activated false otherwise.
      */
     public boolean isEscapeWindowsPaths()
     {
         return escapeWindowsPaths;
     }
 
     /**
      * @since 1.0-beta-3
      * @param escapedBackslashesInFilePath true or false.
      */
     public void setEscapeWindowsPaths( boolean escapedBackslashesInFilePath )
     {
         this.escapeWindowsPaths = escapedBackslashesInFilePath;
     }
 
     /**
      * Alias for {@link #isEscapeWindowsPaths()}
      * 
      * @return The current value of {@link #isEscapeWindowsPaths()}
      */
     public boolean isEscapedBackslashesInFilePath()
     {
         return isEscapeWindowsPaths();
     }
 
     /**
      * Alias for {@link #setEscapeWindowsPaths(boolean)}
      * 
      * @param escape activate or deactivate escaping.
      */
     public void setEscapedBackslashesInFilePath( boolean escape )
     {
         setEscapeWindowsPaths( escape );
     }
 
     /**
      * @return Current value of mavenSession
      */
     public MavenSession getMavenSession()
     {
         return mavenSession;
     }
 
     /**
      * @param mavenSession Set new value for the MavenSession of the instance.
      */
     public void setMavenSession( MavenSession mavenSession )
     {
         this.mavenSession = mavenSession;
     }
 
     /**
      * @return the additional properties.
      * @since 1.0-beta-3
      */
     public Properties getAdditionalProperties()
     {
         return additionalProperties;
     }
 
     /**
      * @param additionalProperties The additional properties to be set.
      * @since 1.0-beta-3
      */
     public void setAdditionalProperties( Properties additionalProperties )
     {
         this.additionalProperties = additionalProperties;
     }
 
     /**
      * @return the current value of injectProjectBuildFilters.
      * @since 1.0-beta-3
      */
     public boolean isInjectProjectBuildFilters()
     {
         return injectProjectBuildFilters;
     }
 
     /**
      * @param injectProjectBuildFilters true or false.
      * @since 1.0-beta-3
      */
     public void setInjectProjectBuildFilters( boolean injectProjectBuildFilters )
     {
         this.injectProjectBuildFilters = injectProjectBuildFilters;
     }
 
     /**
      * @return Current value of escapeString.
      * @since 1.0-beta-2
      */
     public String getEscapeString()
     {
         return escapeString;
     }
 
     /**
      * @param escapeString The escape string to use
      * @since 1.0-beta-2
      */
     public void setEscapeString( String escapeString )
     {
         this.escapeString = escapeString;
     }
 
     /**
      * @return The list of project start expressions.
      * @since 1.0-beta-2
      */
     public List<String> getProjectStartExpressions()
     {
         return projectStartExpressions;
     }
 
     /**
      * @param projectStartExpressions The start expressions
      * @since 1.0-beta-2
      */
     public void setProjectStartExpressions( List<String> projectStartExpressions )
     {
         this.projectStartExpressions = projectStartExpressions;
     }
 
     /**
      * See {@link AbstractMavenFilteringRequest#delimiters} for more information and default values.
      *
      * @return Not allowed to be <code>null</code> or empty.
      * @since 1.0-beta-3
      */
     public LinkedHashSet<String> getDelimiters()
     {
         return delimiters;
     }
 
     /**
      * Set the delimiter specifications to use during filtering. Specifications should be of the form: 'BEGIN*END' for
      * asymmetrical delimiters, or 'TOKEN' for symmetrical delimiters. See
      * {@link AbstractMavenFilteringRequest#delimiters} for more information and default values.
      * 
      * @param delimiters If <code>null</code>, reset delimiters to '${*}' only. Otherwise, use the provided value.
      * @since 1.0-beta-3
      */
     public void setDelimiters( LinkedHashSet<String> delimiters )
     {
         if ( delimiters == null || delimiters.isEmpty() )
         {
             this.delimiters.clear();
             this.delimiters.add( "${*}" );
         }
         else
         {
             this.delimiters = delimiters;
         }
     }
 
     /**
      * @param delimiters If {@code null} than nothing will happen. If not {@code null} the delimiters will be set
      *            according to the contents. If delimiter entries are {@code null} those entries will be set to '${*}'.
      * @param useDefaultDelimiters true if the default delimiters will be used false otherwise.
      */
     public void setDelimiters( LinkedHashSet<String> delimiters, boolean useDefaultDelimiters )
     {
         if ( delimiters != null && !delimiters.isEmpty() )
         {
             LinkedHashSet<String> delims = new LinkedHashSet<String>();
             if ( useDefaultDelimiters )
             {
                 delims.addAll( this.getDelimiters() );
             }
 
             for ( String delim : delimiters )
             {
                 if ( delim == null )
                 {
                     // FIXME: ${filter:*} could also trigger this condition. Need a better long-term solution.
                     delims.add( "${*}" );
                 }
                 else
                 {
                     delims.add( delim );
                 }
             }
 
             this.setDelimiters( delims );
         }
 
     }
 
     /**
      * @return If support multiple line filtering is active or not.
      */
     public boolean isSupportMultiLineFiltering()
     {
         return supportMultiLineFiltering;
     }
 
     /**
      * @param supportMultiLineFiltering activate or deactivate multiple line filtering support.
      */
     public void setSupportMultiLineFiltering( boolean supportMultiLineFiltering )
     {
         this.supportMultiLineFiltering = supportMultiLineFiltering;
     }
 
 }