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.metadata.authorizer;
  
  import org.apache.kafka.server.common.ApiMessageAndVersion;
  
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  import java.util.NoSuchElementException;
  
  
  public class StandardAclRecordIterator implements Iterator<List<ApiMessageAndVersion>> {
      private static final int DEFAULT_MAX_RECORDS_IN_BATCH = 10;
  
      private final Iterator<StandardAclWithId> iterator;
  
      private final int maxRecordsInBatch;
  
      public StandardAclRecordIterator(Iterator<StandardAclWithId> iterator) {
          this(iterator, DEFAULT_MAX_RECORDS_IN_BATCH);
      }
  
      public StandardAclRecordIterator(Iterator<StandardAclWithId> iterator, int maxRecordsInBatch) {
          this.iterator = iterator;
          this.maxRecordsInBatch = maxRecordsInBatch;
      }
  
      @Override
      public boolean hasNext() {
          return iterator.hasNext();
      }
  
      @Override
      public List<ApiMessageAndVersion> next() {
          if (!hasNext()) throw new NoSuchElementException();
          List<ApiMessageAndVersion> result = new ArrayList<>(10);
          for (int i = 0; i < maxRecordsInBatch; i++) {
              if (!iterator.hasNext()) break;
              StandardAclWithId aclWithId = iterator.next();
              result.add(new ApiMessageAndVersion(aclWithId.toRecord(), (short) 0));
          }
          return result;
      }
  }
  