/*
    * 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.apache.maven.plugins.assembly.filter;
  
  import javax.inject.Named;
  
  import java.nio.file.Paths;
  
  import org.codehaus.plexus.components.io.fileselectors.FileInfo;
  
  /**
   * <code>metaInf-services</code>: <code>META-INF/services/*</code> aggregating handler.
   */
  @Named("metaInf-services")
  public class MetaInfServicesHandler extends AbstractLineAggregatingHandler {
  
      private static final String SERVICES_PATH_PREFIX = "META-INF/services/";
  
      @Override
      protected String getOutputPathPrefix(final FileInfo fileInfo) {
          return Paths.get(fileInfo.getName()).getParent().toString() + "/";
      }
  
      @Override
      protected boolean fileMatches(final FileInfo fileInfo) {
          final String path = fileInfo.getName();
  
          String leftover = null;
          if (path.startsWith(SERVICES_PATH_PREFIX)) {
              leftover = path.substring(SERVICES_PATH_PREFIX.length());
          } else if (path.startsWith("/META-INF/services/")) {
              leftover = path.substring(SERVICES_PATH_PREFIX.length() - 1);
          }
  
          return leftover != null && leftover.length() > 0;
      }
  }