content: /*
   *  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
   *
   *      https://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.tools.ant.types.resources;
  
  import java.util.Collection;
  import java.util.stream.Collectors;
  
  import org.apache.tools.ant.types.Resource;
  
  /**
   * ResourceCollection that contains all resources of another
   * collection except for the first <code>count</code> elements, a la
   * the UNIX tail command with parameter <code>-n +count</code>.
   * @since Ant 1.9.5
   */
  public class AllButFirst extends SizeLimitCollection {
  
      /**
       * Take all elements except for the first <code>count</code> elements.
       * @return a Collection of Resources.
       */
      @Override
      protected Collection<Resource> getCollection() {
          return getResourceCollection().stream().skip(getValidCount())
              .collect(Collectors.toList());
      }
  
      @Override
      public synchronized int size() {
          return Math.max(getResourceCollection().size() - getValidCount(), 0);
      }
  
  }
  