| /** |
| * Copyright 2007 The Apache Software Foundation |
| * |
| * 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.hadoop.hbase.regionserver; |
| |
| import org.apache.hadoop.hbase.HRegionInfo; |
| import org.apache.hadoop.hbase.HTableDescriptor; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.util.MD5Hash; |
| |
| import org.junit.Test; |
| import static org.junit.Assert.*; |
| |
| public class TestHRegionInfo { |
| @Test |
| public void testCreateHRegionInfoName() throws Exception { |
| String tableName = "tablename"; |
| final byte [] tn = Bytes.toBytes(tableName); |
| String startKey = "startkey"; |
| final byte [] sk = Bytes.toBytes(startKey); |
| String id = "id"; |
| |
| // old format region name |
| byte [] name = HRegionInfo.createRegionName(tn, sk, id, false); |
| String nameStr = Bytes.toString(name); |
| assertEquals(tableName + "," + startKey + "," + id, nameStr); |
| |
| |
| // new format region name. |
| String md5HashInHex = MD5Hash.getMD5AsHex(name); |
| assertEquals(HRegionInfo.MD5_HEX_LENGTH, md5HashInHex.length()); |
| name = HRegionInfo.createRegionName(tn, sk, id, true); |
| nameStr = Bytes.toString(name); |
| assertEquals(tableName + "," + startKey + "," |
| + id + "." + md5HashInHex + ".", |
| nameStr); |
| } |
| |
| @Test |
| public void testContainsRange() { |
| HTableDescriptor tableDesc = new HTableDescriptor("testtable"); |
| HRegionInfo hri = new HRegionInfo( |
| tableDesc, Bytes.toBytes("a"), Bytes.toBytes("g")); |
| // Single row range at start of region |
| assertTrue(hri.containsRange(Bytes.toBytes("a"), Bytes.toBytes("a"))); |
| // Fully contained range |
| assertTrue(hri.containsRange(Bytes.toBytes("b"), Bytes.toBytes("c"))); |
| // Range overlapping start of region |
| assertTrue(hri.containsRange(Bytes.toBytes("a"), Bytes.toBytes("c"))); |
| // Fully contained single-row range |
| assertTrue(hri.containsRange(Bytes.toBytes("c"), Bytes.toBytes("c"))); |
| // Range that overlaps end key and hence doesn't fit |
| assertFalse(hri.containsRange(Bytes.toBytes("a"), Bytes.toBytes("g"))); |
| // Single row range on end key |
| assertFalse(hri.containsRange(Bytes.toBytes("g"), Bytes.toBytes("g"))); |
| // Single row range entirely outside |
| assertFalse(hri.containsRange(Bytes.toBytes("z"), Bytes.toBytes("z"))); |
| |
| // Degenerate range |
| try { |
| hri.containsRange(Bytes.toBytes("z"), Bytes.toBytes("a")); |
| fail("Invalid range did not throw IAE"); |
| } catch (IllegalArgumentException iae) { |
| } |
| } |
| } |