/*
    * 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.icc;
  
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  
  final class CachingInputStream extends InputStream {
      private final InputStream is;
      private final ByteArrayOutputStream baos = new ByteArrayOutputStream();
  
      CachingInputStream(final InputStream is) {
          this.is = is;
      }
  
      @Override
      public int available() throws IOException {
          return is.available();
      }
  
      @Override
      public void close() throws IOException {
          is.close();
      }
  
      public byte[] getCache() {
          return baos.toByteArray();
      }
  
      @Override
      public int read() throws IOException {
          final int result = is.read();
          baos.write(result);
          return result;
      }
  
  }