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| 1 | +/* |
| 2 | + * Licensed to the Apache Software Foundation (ASF) under one |
| 3 | + * or more contributor license agreements. See the NOTICE file |
| 4 | + * distributed with this work for additional information |
| 5 | + * regarding copyright ownership. The ASF licenses this file |
| 6 | + * to you under the Apache License, Version 2.0 (the |
| 7 | + * "License"); you may not use this file except in compliance |
| 8 | + * with the License. You may obtain a copy of the License at |
| 9 | + * |
| 10 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | + * |
| 12 | + * Unless required by applicable law or agreed to in writing, software |
| 13 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | + * See the License for the specific language governing permissions and |
| 16 | + * limitations under the License. |
| 17 | + */ |
| 18 | +package org.apache.hadoop.hbase; |
| 19 | + |
| 20 | +import static org.junit.Assert.assertArrayEquals; |
| 21 | +import static org.junit.Assert.assertEquals; |
| 22 | +import static org.junit.Assert.assertSame; |
| 23 | +import static org.junit.Assert.fail; |
| 24 | +import java.nio.ByteBuffer; |
| 25 | +import java.util.HashMap; |
| 26 | +import java.util.Map; |
| 27 | +import org.apache.hadoop.hbase.testclassification.MiscTests; |
| 28 | +import org.apache.hadoop.hbase.testclassification.SmallTests; |
| 29 | +import org.apache.hadoop.hbase.util.Bytes; |
| 30 | +import org.junit.Test; |
| 31 | +import org.junit.experimental.categories.Category; |
| 32 | + |
| 33 | +/** |
| 34 | + * Tests for various kinds of TableNames. |
| 35 | + */ |
| 36 | +@Category({MiscTests.class, SmallTests.class}) |
| 37 | +public class TestTableName { |
| 38 | + |
| 39 | + private static String[] emptyNames = {"", " "}; |
| 40 | + private static String[] invalidNamespace = {":a", "%:a"}; |
| 41 | + private static String[] legalTableNames = {"foo", "with-dash_under.dot", "_under_start_ok", |
| 42 | + "with-dash.with_underscore", "02-01-2012.my_table_01-02", "xyz._mytable_", "9_9_0.table_02", |
| 43 | + "dot1.dot2.table", "new.-mytable", "with-dash.with.dot", "legal..t2", "legal..legal.t2", |
| 44 | + "trailingdots..", "trailing.dots...", "ns:mytable", "ns:_mytable_", "ns:my_table_01-02"}; |
| 45 | + private static String[] illegalTableNames = {".dot_start_illegal", "-dash_start_illegal", |
| 46 | + "spaces not ok", "-dash-.start_illegal", "new.table with space", "01 .table", "ns:-illegaldash", |
| 47 | + "new:.illegaldot", "new:illegalcolon1:", "new:illegalcolon1:2"}; |
| 48 | + |
| 49 | + static class Names { |
| 50 | + String ns; |
| 51 | + byte[] nsb; |
| 52 | + String tn; |
| 53 | + byte[] tnb; |
| 54 | + String nn; |
| 55 | + byte[] nnb; |
| 56 | + |
| 57 | + Names(String ns, String tn) { |
| 58 | + this.ns = ns; |
| 59 | + nsb = Bytes.toBytes(ns); |
| 60 | + this.tn = tn; |
| 61 | + tnb = Bytes.toBytes(tn); |
| 62 | + nn = this.ns + ":" + this.tn; |
| 63 | + nnb = Bytes.toBytes(nn); |
| 64 | + } |
| 65 | + |
| 66 | + @Override |
| 67 | + public boolean equals(Object o) { |
| 68 | + if (this == o) { |
| 69 | + return true; |
| 70 | + } |
| 71 | + if (o == null || getClass() != o.getClass()) { |
| 72 | + return false; |
| 73 | + } |
| 74 | + |
| 75 | + Names names = (Names) o; |
| 76 | + |
| 77 | + if (!ns.equals(names.ns)) { |
| 78 | + return false; |
| 79 | + } |
| 80 | + if (!tn.equals(names.tn)) { |
| 81 | + return false; |
| 82 | + } |
| 83 | + return true; |
| 84 | + } |
| 85 | + |
| 86 | + @Override |
| 87 | + public int hashCode() { |
| 88 | + int result = ns.hashCode(); |
| 89 | + result = 31 * result + tn.hashCode(); |
| 90 | + return result; |
| 91 | + } |
| 92 | + } |
| 93 | + |
| 94 | + private static Names[] names = new Names[] { |
| 95 | + new Names("n1", "n1"), |
| 96 | + new Names("n2", "n2"), |
| 97 | + new Names("table1", "table1"), |
| 98 | + new Names("table2", "table2"), |
| 99 | + new Names("table2", "table1"), |
| 100 | + new Names("table1", "table2"), |
| 101 | + new Names("n1", "table1"), |
| 102 | + new Names("n1", "table1"), |
| 103 | + new Names("n2", "table2"), |
| 104 | + new Names("n2", "table2") |
| 105 | + }; |
| 106 | + |
| 107 | + @Test public void testInvalidNamespace() { |
| 108 | + for (String tn : invalidNamespace) { |
| 109 | + try { |
| 110 | + TableName.isLegalFullyQualifiedTableName(Bytes.toBytes(tn)); |
| 111 | + } catch (IllegalArgumentException ie) { |
| 112 | + // expected, pass |
| 113 | + continue; |
| 114 | + } |
| 115 | + fail("Exception not thrown for ns: " + tn); |
| 116 | + } |
| 117 | + } |
| 118 | + |
| 119 | + @Test public void testEmptyNamespaceName() { |
| 120 | + for (String nn : emptyNames) { |
| 121 | + try { |
| 122 | + TableName.isLegalNamespaceName(Bytes.toBytes(nn)); |
| 123 | + } catch (IllegalArgumentException iae) { |
| 124 | + // expected, pass |
| 125 | + continue; |
| 126 | + } |
| 127 | + fail("Exception not thrown for ns: " + nn); |
| 128 | + } |
| 129 | + } |
| 130 | + |
| 131 | + @Test public void testEmptyTableName() { |
| 132 | + for (String tn : emptyNames) { |
| 133 | + try { |
| 134 | + TableName.isLegalFullyQualifiedTableName(Bytes.toBytes(tn)); |
| 135 | + } catch (IllegalArgumentException iae) { |
| 136 | + // expected, pass |
| 137 | + continue; |
| 138 | + } |
| 139 | + fail("Exception not thrown for table name: " + tn); |
| 140 | + } |
| 141 | + } |
| 142 | + |
| 143 | + @Test public void testLegalHTableNames() { |
| 144 | + for (String tn : legalTableNames) { |
| 145 | + TableName.isLegalFullyQualifiedTableName(Bytes.toBytes(tn)); |
| 146 | + } |
| 147 | + } |
| 148 | + |
| 149 | + @Test public void testIllegalHTableNames() { |
| 150 | + for (String tn : illegalTableNames) { |
| 151 | + try { |
| 152 | + TableName.isLegalFullyQualifiedTableName(Bytes.toBytes(tn)); |
| 153 | + } catch (Exception e) { |
| 154 | + // expected, pass |
| 155 | + continue; |
| 156 | + } |
| 157 | + fail("Exception not thrown for table name: " + tn); |
| 158 | + } |
| 159 | + } |
| 160 | + |
| 161 | + @Test public void testValueOf() { |
| 162 | + Map<String, TableName> inCache = new HashMap<>(); |
| 163 | + // fill cache |
| 164 | + for (Names name : names) { |
| 165 | + inCache.put(name.nn, TableName.valueOf(name.ns, name.tn)); |
| 166 | + } |
| 167 | + for (Names name : names) { |
| 168 | + assertSame(inCache.get(name.nn), validateNames(TableName.valueOf(name.ns, name.tn), name)); |
| 169 | + assertSame(inCache.get(name.nn), validateNames(TableName.valueOf(name.nsb, name.tnb), name)); |
| 170 | + assertSame(inCache.get(name.nn), validateNames(TableName.valueOf(name.nn), name)); |
| 171 | + assertSame(inCache.get(name.nn), validateNames(TableName.valueOf(name.nnb), name)); |
| 172 | + assertSame(inCache.get(name.nn), validateNames(TableName.valueOf( |
| 173 | + ByteBuffer.wrap(name.nsb), ByteBuffer.wrap(name.tnb)), name)); |
| 174 | + } |
| 175 | + } |
| 176 | + |
| 177 | + private TableName validateNames(TableName expected, Names names) { |
| 178 | + assertEquals(expected.getNameAsString(), names.nn); |
| 179 | + assertArrayEquals(expected.getName(), names.nnb); |
| 180 | + assertEquals(expected.getQualifierAsString(), names.tn); |
| 181 | + assertArrayEquals(expected.getQualifier(), names.tnb); |
| 182 | + assertEquals(expected.getNamespaceAsString(), names.ns); |
| 183 | + assertArrayEquals(expected.getNamespace(), names.nsb); |
| 184 | + return expected; |
| 185 | + } |
| 186 | +} |
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