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
   *
   *     https://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.avro.mapred;
  
  import java.io.Closeable;
  import java.io.IOException;
  
  import org.apache.hadoop.conf.Configured;
  import org.apache.hadoop.mapred.JobConf;
  import org.apache.hadoop.mapred.JobConfigurable;
  import org.apache.hadoop.mapred.Reporter;
  
  /**
   * A mapper for Avro data.
   *
   * <p>
   * Applications subclass this class and pass their subclass to
   * {@link AvroJob#setMapperClass(JobConf, Class)}, overriding
   * {@link #map(Object, AvroCollector, Reporter)}.
   */
  public class AvroMapper<IN, OUT> extends Configured implements JobConfigurable, Closeable {
  
    /** Called with each map input datum. By default, collects inputs. */
    @SuppressWarnings("unchecked")
    public void map(IN datum, AvroCollector<OUT> collector, Reporter reporter) throws IOException {
      collector.collect((OUT) datum);
    }
  
    /** Subclasses can override this as desired. */
    @Override
    public void close() throws IOException {
      // no op
    }
  
    /** Subclasses can override this as desired. */
    @Override
    public void configure(JobConf jobConf) {
      // no op
    }
  }
  