001/*
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements.  See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership.  The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License.  You may obtain a copy of the License at
010 *
011 *     http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 */
019
020package org.apache.hadoop.hbase.regionserver;
021
022import java.util.ArrayList;
023import java.util.List;
024
025import org.apache.hadoop.hbase.Cell;
026import org.apache.hadoop.hbase.CellComparator;
027import org.apache.hadoop.hbase.KeyValue;
028import org.apache.hadoop.hbase.util.CollectionBackedScanner;
029
030/**
031 * A fixture that implements and presents a KeyValueScanner.
032 * It takes a list of key/values which is then sorted according
033 * to the provided comparator, and then the whole thing pretends
034 * to be a store file scanner.
035 */
036public class KeyValueScanFixture extends CollectionBackedScanner {
037  public KeyValueScanFixture(CellComparator comparator, Cell... cells) {
038    super(comparator, cells);
039  }
040
041  public static List<KeyValueScanner> scanFixture(KeyValue[] ... kvArrays) {
042    ArrayList<KeyValueScanner> scanners = new ArrayList<>();
043    for (KeyValue [] kvs : kvArrays) {
044      scanners.add(new KeyValueScanFixture(CellComparator.getInstance(), kvs));
045    }
046    return scanners;
047  }
048}