001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.regionserver;
019
020import java.util.ArrayList;
021import java.util.List;
022import org.apache.hadoop.hbase.CellComparator;
023import org.apache.hadoop.hbase.ExtendedCell;
024import org.apache.hadoop.hbase.KeyValue;
025import org.apache.hadoop.hbase.util.CollectionBackedScanner;
026
027/**
028 * A fixture that implements and presents a KeyValueScanner. It takes a list of key/values which is
029 * then sorted according to the provided comparator, and then the whole thing pretends to be a store
030 * file scanner.
031 */
032public class KeyValueScanFixture extends CollectionBackedScanner {
033  public KeyValueScanFixture(CellComparator comparator, ExtendedCell... cells) {
034    super(comparator, cells);
035  }
036
037  public static List<KeyValueScanner> scanFixture(KeyValue[]... kvArrays) {
038    ArrayList<KeyValueScanner> scanners = new ArrayList<>();
039    for (KeyValue[] kvs : kvArrays) {
040      scanners.add(new KeyValueScanFixture(CellComparator.getInstance(), kvs));
041    }
042    return scanners;
043  }
044}