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
   *
   *    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.kafka.common.utils;
  
  import java.io.Closeable;
  import java.util.Iterator;
  
  /**
   * Iterators that need to be closed in order to release resources should implement this interface.
   *
   * Warning: before implementing this interface, consider if there are better options. The chance of misuse is
   * a bit high since people are used to iterating without closing.
   */
  public interface CloseableIterator<T> extends Iterator<T>, Closeable {
      void close();
  
      static <R> CloseableIterator<R> wrap(Iterator<R> inner) {
          return new CloseableIterator<>() {
              @Override
              public void close() {}
  
              @Override
              public boolean hasNext() {
                  return inner.hasNext();
              }
  
              @Override
              public R next() {
                  return inner.next();
              }
  
              @Override
              public void remove() {
                  inner.remove();
              }
          };
      }
  }
  