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.tools.filter;
  
  import java.util.Set;
  
  public interface PartitionFilter {
      /**
       * Used to filter partitions based on a certain criteria, for example, a set of partition ids.
       */
      boolean isPartitionAllowed(int partition);
  
      class PartitionsSetFilter implements PartitionFilter {
          private final Set<Integer> partitionIds;
          public PartitionsSetFilter(Set<Integer> partitionIds) {
              this.partitionIds = partitionIds;
          }
          @Override
          public boolean isPartitionAllowed(int partition) {
              return partitionIds.isEmpty() || partitionIds.contains(partition);
          }
      }
  
      class UniquePartitionFilter implements PartitionFilter {
          private final int partition;
  
          public UniquePartitionFilter(int partition) {
              this.partition = partition;
          }
  
          @Override
          public boolean isPartitionAllowed(int partition) {
              return partition == this.partition;
          }
      }
  
      class PartitionRangeFilter implements PartitionFilter {
          private final int lowerRange;
          private final int upperRange;
  
          public PartitionRangeFilter(int lowerRange, int upperRange) {
              this.lowerRange = lowerRange;
              this.upperRange = upperRange;
          }
  
          @Override
          public boolean isPartitionAllowed(int partition) {
              return partition >= lowerRange && partition < upperRange;
          }
      }
  }
  