/*
    * 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.commons.imaging.formats.tiff;
  
  import java.util.Comparator;
  
  public abstract class AbstractTiffElement {
      public abstract static class DataElement extends AbstractTiffElement {
          private final byte[] data;
  
          public DataElement(final long offset, final int length, final byte[] data) {
              super(offset, length);
  
              this.data = data;
          }
  
          public byte[] getData() {
              return data.clone();
          }
  
          public int getDataLength() {
              return data.length;
          }
      }
  
      public static final class Stub extends AbstractTiffElement {
          public Stub(final long offset, final int length) {
              super(offset, length);
          }
  
          @Override
          public String getElementDescription() {
              return "Element, offset: " + offset + ", length: " + length + ", last: " + (offset + length);
          }
  
      }
  
      public static final Comparator<AbstractTiffElement> COMPARATOR = Comparator.comparingLong(e -> e.offset);
  
      public final long offset;
  
      public final int length;
  
      public AbstractTiffElement(final long offset, final int length) {
          this.offset = offset;
          this.length = length;
      }
  
      public abstract String getElementDescription();
  }