package org.apache.maven.cli.logging.impl;
   
   /*
    * 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.net.URL;
  import java.util.Map;
  import java.util.Set;
  
  import org.apache.maven.cli.logging.BaseSlf4jConfiguration;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Pseudo-configuration for unsupported slf4j binding.
   *
   * @author Hervé Boutemy
   * @since 3.2.4
   */
  public class UnsupportedSlf4jBindingConfiguration
      extends BaseSlf4jConfiguration
  {
      private final Logger logger = LoggerFactory.getLogger( UnsupportedSlf4jBindingConfiguration.class );
  
      private String slf4jBinding;
  
      private Map<URL, Set<Object>> supported;
  
      public UnsupportedSlf4jBindingConfiguration( String slf4jBinding, Map<URL, Set<Object>> supported )
      {
          this.slf4jBinding = slf4jBinding;
          this.supported = supported;
      }
  
      @Override
      public void activate()
      {
          logger.warn( "The SLF4J binding actually used is not supported by Maven: " + slf4jBinding );
          logger.warn( "Maven supported bindings are:" );
  
          String ls = System.getProperty( "line.separator" );
  
          for ( Map.Entry<URL, Set<Object>> entry : supported.entrySet() )
          {
              StringBuilder sb = new StringBuilder();
              sb.append( "(from " ).append( entry.getKey().toExternalForm() ).append( ')' );
  
              for ( Object binding : entry.getValue() )
              {
                  sb.append( ls ).append( "- " ).append( binding );
              }
  
              logger.warn( sb.toString() );
          }
      }
  }