SolrDocumentConverter.java

/**
 * 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.solr.hadoop;

import java.util.Collection;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.solr.common.SolrInputDocument;

/**
 * Extend this class to convert objects into SolrInputDocuments
 */
public abstract class SolrDocumentConverter<K, V> extends Configured {
  public static final String CONVERTER_NAME_KEY = "solr.document.converter.class";

  public abstract Collection<SolrInputDocument> convert(K key, V value);

  public static void setSolrDocumentConverter(
      Class<? extends SolrDocumentConverter<?, ?>> clazz, Configuration conf) {
    conf.set(CONVERTER_NAME_KEY, clazz.getName());
  }

  public static String getSolrDocumentConverter(Configuration conf) {
    return conf.get(CONVERTER_NAME_KEY);
  }
}