package org.apache.blur.mapreduce.lib;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import org.apache.hadoop.conf.Configuration;
import org.apache.lucene.document.Field;
/**
* 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.
*/
public abstract class DocumentBufferStrategy {
protected final Map<String, List<Field>> _documents = new TreeMap<String, List<Field>>();
public DocumentBufferStrategy(Configuration configuration) {
}
public abstract boolean isFull();
protected abstract void newDocument(List<Field> document);
public List<Field> add(String recordId, List<Field> document) {
newDocument(document);
return _documents.put(recordId, document);
}
public List<List<Field>> getAndClearBuffer() {
List<List<Field>> docs = new ArrayList<List<Field>>(_documents.values());
_documents.clear();
return docs;
}
public boolean isEmpty() {
return _documents.isEmpty();
}
}