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.connect.transforms;
  
  import org.apache.kafka.common.config.ConfigDef;
  import org.apache.kafka.common.utils.AppInfoParser;
  import org.apache.kafka.connect.components.Versioned;
  import org.apache.kafka.connect.connector.ConnectRecord;
  
  import java.util.Map;
  
  /**
   * Drops all records, filtering them from subsequent transformations in the chain.
   * This is intended to be used conditionally to filter out records matching (or not matching)
   * a particular {@link org.apache.kafka.connect.transforms.predicates.Predicate}.
   * @param <R> The type of record.
   */
  public class Filter<R extends ConnectRecord<R>> implements Transformation<R>, Versioned {
  
      public static final String OVERVIEW_DOC = "Drops all records, filtering them from subsequent transformations in the chain. " +
              "This is intended to be used conditionally to filter out records matching (or not matching) " +
              "a particular Predicate.";
      public static final ConfigDef CONFIG_DEF = new ConfigDef();
  
      @Override
      public R apply(R record) {
          return null;
      }
  
      @Override
      public String version() {
          return AppInfoParser.getVersion();
      }
  
      @Override
      public ConfigDef config() {
          return CONFIG_DEF;
      }
  
      @Override
      public void close() {
  
      }
  
      @Override
      public void configure(Map<String, ?> configs) {
  
      }
  }
  