/*
    * 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.
   */
  package org.codehaus.plexus.components.secdispatcher.internal.sources;
  
  import java.util.function.Function;
  import java.util.function.Predicate;
  
  import org.codehaus.plexus.components.secdispatcher.MasterSource;
  import org.codehaus.plexus.components.secdispatcher.SecDispatcher;
  import org.codehaus.plexus.components.secdispatcher.SecDispatcherException;
  
  import static java.util.Objects.requireNonNull;
  
  /**
   * Master password source support class.
   */
  public abstract class MasterSourceSupport implements MasterSource {
      private final Predicate<String> matcher;
      private final Function<String, String> transformer;
  
      public MasterSourceSupport(Predicate<String> matcher, Function<String, String> transformer) {
          this.matcher = requireNonNull(matcher);
          this.transformer = requireNonNull(transformer);
      }
  
      @Override
      public String handle(String masterSource) throws SecDispatcherException {
          if (matcher.test(masterSource)) {
              return doHandle(transformer.apply(masterSource));
          }
          return null;
      }
  
      protected abstract String doHandle(String transformed) throws SecDispatcherException;
  
      public SecDispatcher.ValidationResponse validateConfiguration(String masterSource) {
          if (matcher.test(masterSource)) {
              return doValidateConfiguration(transformer.apply(masterSource));
          }
          return null;
      }
  
      protected abstract SecDispatcher.ValidationResponse doValidateConfiguration(String transformed);
  }