hbase-server/src/test/java/org/apache/hadoop/hbase/TestServerName.java

   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.assertEquals;
  21 import static org.junit.Assert.assertFalse;
  22 import static org.junit.Assert.assertNotSame;
  23 import static org.junit.Assert.assertSame;
  24 import static org.junit.Assert.assertTrue;
  25
  26 import java.util.HashSet;
  27 import java.util.Set;
  28 import java.util.regex.Pattern;
  29
  30 import org.apache.hadoop.hbase.testclassification.MiscTests;
  31 import org.apache.hadoop.hbase.testclassification.SmallTests;
  32 import org.apache.hadoop.hbase.util.Addressing;
  33 import org.apache.hadoop.hbase.util.Bytes;
  34 import org.junit.ClassRule;
  35 import org.junit.Ignore;
  36 import org.junit.Test;
  37 import org.junit.experimental.categories.Category;
  38
  39 @Category({MiscTests.class, SmallTests.class})
  40 public class TestServerName {
  41
  42   @ClassRule
  43   public static final HBaseClassTestRule CLASS_RULE =
  44       HBaseClassTestRule.forClass(TestServerName.class);
  45
  46   @Test
  47   public void testHash() {
  48     ServerName sn1 = ServerName.parseServerName("asf903.gq1.ygridcore.net,52690,1517835491385");
  49     ServerName sn2 = ServerName.parseServerName("asf903.gq1.ygridcore.net,42231,1517835491329");
  50     Set<ServerName> sns = new HashSet<ServerName>();
  51     sns.add(sn2);
  52     sns.add(sn1);
  53     sns.add(sn1);
  54     assertEquals(2, sns.size());
  55   }
  56
  57   @Test
  58   public void testGetHostNameMinusDomain() {
  59     assertEquals("2607:f0d0:1002:51::4",
  60         ServerName.getHostNameMinusDomain("2607:f0d0:1002:51::4"));
  61     assertEquals("2607:f0d0:1002:0051:0000:0000:0000:0004",
  62         ServerName.getHostNameMinusDomain("2607:f0d0:1002:0051:0000:0000:0000:0004"));
  63     assertEquals("1.1.1.1", ServerName.getHostNameMinusDomain("1.1.1.1"));
  64     assertEquals("x", ServerName.getHostNameMinusDomain("x"));
  65     assertEquals("x", ServerName.getHostNameMinusDomain("x.y.z"));
  66     assertEquals("asf000", ServerName.getHostNameMinusDomain("asf000.sp2.ygridcore.net"));
  67     ServerName sn = ServerName.valueOf("asf000.sp2.ygridcore.net", 1, 1);
  68     assertEquals("asf000.sp2.ygridcore.net,1,1", sn.toString());
  69   }
  70
  71   @Test
  72   public void testShortString() {
  73     ServerName sn = ServerName.valueOf("asf000.sp2.ygridcore.net", 1, 1);
  74     assertEquals("asf000:1", sn.toShortString());
  75     sn = ServerName.valueOf("2607:f0d0:1002:0051:0000:0000:0000:0004", 1, 1);
  76     assertEquals("2607:f0d0:1002:0051:0000:0000:0000:0004:1", sn.toShortString());
  77     sn = ServerName.valueOf("1.1.1.1", 1, 1);
  78     assertEquals("1.1.1.1:1", sn.toShortString());
  79   }
  80
  81   @Test
  82   public void testRegexPatterns() {
  83     assertTrue(Pattern.matches(Addressing.VALID_PORT_REGEX, "123"));
  84     assertFalse(Pattern.matches(Addressing.VALID_PORT_REGEX, ""));
  85     assertTrue(ServerName.SERVERNAME_PATTERN.matcher("www1.example.org,1234,567").matches());
  86     ServerName.parseServerName("a.b.c,58102,1319771740322");
  87     ServerName.parseServerName("192.168.1.199,58102,1319771740322");
  88     ServerName.parseServerName("a.b.c:58102");
  89     ServerName.parseServerName("192.168.1.199:58102");
  90   }
  91
  92   @Test
  93   public void testParseOfBytes() {
  94     final String snStr = "www.EXAMPLE.org,1234,5678";
  95     ServerName sn = ServerName.valueOf(snStr);
  96     byte[] versionedBytes = sn.getVersionedBytes();
  97     ServerName parsedSn = ServerName.parseVersionedServerName(versionedBytes);
  98     assertEquals(sn.toString(), parsedSn.toString());
  99     assertEquals(sn.getHostnameLowerCase(), parsedSn.getHostnameLowerCase());
 100     assertEquals(sn.getPort(), parsedSn.getPort());
 101     assertEquals(sn.getStartcode(), parsedSn.getStartcode());
 102
 103     final String hostnamePortStr = sn.getAddress().toString();
 104     byte[] bytes = Bytes.toBytes(hostnamePortStr);
 105     parsedSn = ServerName.parseVersionedServerName(bytes);
 106     assertEquals(sn.getHostnameLowerCase(), parsedSn.getHostnameLowerCase());
 107     assertEquals(sn.getPort(), parsedSn.getPort());
 108     assertEquals(ServerName.NON_STARTCODE, parsedSn.getStartcode());
 109   }
 110
 111   @Test
 112   public void testServerName() {
 113     ServerName sn = ServerName.valueOf("www.example.org", 1234, 5678);
 114     ServerName sn2 = ServerName.valueOf("www.example.org", 1234, 5678);
 115     ServerName sn3 = ServerName.valueOf("www.example.org", 1234, 56789);
 116     assertTrue(sn.equals(sn2));
 117     assertFalse(sn.equals(sn3));
 118     assertEquals(sn.hashCode(), sn2.hashCode());
 119     assertNotSame(sn.hashCode(), sn3.hashCode());
 120     assertEquals(sn.toString(),
 121         ServerName.valueOf("www.example.org", 1234, 5678).toString());
 122     assertEquals(sn.toString(),
 123         ServerName.valueOf("www.example.org:1234", 5678).toString());
 124     assertEquals("www.example.org" + ServerName.SERVERNAME_SEPARATOR + "1234"
 125         + ServerName.SERVERNAME_SEPARATOR + "5678", sn.toString());
 126   }
 127
 128   @Test
 129   public void testHostNameCaseSensitivity() {
 130     ServerName lower = ServerName.valueOf("www.example.org", 1234, 5678);
 131     ServerName upper = ServerName.valueOf("www.EXAMPLE.org", 1234, 5678);
 132     assertEquals(0, lower.compareTo(upper));
 133     assertEquals(0, upper.compareTo(lower));
 134     assertEquals(lower.hashCode(), upper.hashCode());
 135     assertTrue(lower.equals(upper));
 136     assertTrue(upper.equals(lower));
 137     assertTrue(ServerName.isSameAddress(lower, upper));
 138   }
 139
 140   @Test
 141   public void testInterning() {
 142     ServerName sn1 = ServerName.valueOf("www.example.org", 1234, 5671);
 143     assertSame(sn1, ServerName.valueOf("www.example.org", 1234, 5671));
 144   }
 145
 146   @Ignore // Enable and let fun for hours to make sure weak references working fine.
 147   @Test
 148   public void testInterningDoesWeakReferences() {
 149     for (int i = 0; i < Integer.MAX_VALUE; i++) {
 150       ServerName.valueOf("www.example.org", 1234, i++);
 151     }
 152   }
 153 }
 154