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;
019
020import static org.junit.Assert.assertEquals;
021import static org.junit.Assert.assertFalse;
022import static org.junit.Assert.assertNotSame;
023import static org.junit.Assert.assertSame;
024import static org.junit.Assert.assertTrue;
025
026import java.util.HashSet;
027import java.util.Set;
028import java.util.regex.Pattern;
029import org.apache.hadoop.hbase.testclassification.MiscTests;
030import org.apache.hadoop.hbase.testclassification.SmallTests;
031import org.apache.hadoop.hbase.util.Addressing;
032import org.apache.hadoop.hbase.util.Bytes;
033import org.junit.ClassRule;
034import org.junit.Test;
035import org.junit.experimental.categories.Category;
036
037@Category({ MiscTests.class, SmallTests.class })
038public class TestServerName {
039
040  @ClassRule
041  public static final HBaseClassTestRule CLASS_RULE =
042    HBaseClassTestRule.forClass(TestServerName.class);
043
044  @Test
045  public void testHash() {
046    ServerName sn1 = ServerName.parseServerName("asf903.gq1.ygridcore.net,52690,1517835491385");
047    ServerName sn2 = ServerName.parseServerName("asf903.gq1.ygridcore.net,42231,1517835491329");
048    Set<ServerName> sns = new HashSet<>();
049    sns.add(sn2);
050    sns.add(sn1);
051    sns.add(sn1);
052    assertEquals(2, sns.size());
053  }
054
055  @Test
056  public void testShortString() {
057    ServerName sn = ServerName.valueOf("asf000.sp2.ygridcore.net", 1, 1);
058    assertEquals("asf000:1", sn.toShortString());
059    sn = ServerName.valueOf("2607:f0d0:1002:0051:0000:0000:0000:0004", 1, 1);
060    assertEquals("2607:f0d0:1002:0051:0000:0000:0000:0004:1", sn.toShortString());
061    sn = ServerName.valueOf("1.1.1.1", 1, 1);
062    assertEquals("1.1.1.1:1", sn.toShortString());
063  }
064
065  @Test
066  public void testRegexPatterns() {
067    assertTrue(Pattern.matches(Addressing.VALID_PORT_REGEX, "123"));
068    assertFalse(Pattern.matches(Addressing.VALID_PORT_REGEX, ""));
069    assertTrue(ServerName.SERVERNAME_PATTERN.matcher("www1.example.org,1234,567").matches());
070    ServerName.parseServerName("a.b.c,58102,1319771740322");
071    ServerName.parseServerName("192.168.1.199,58102,1319771740322");
072    ServerName.parseServerName("a.b.c:58102");
073    ServerName.parseServerName("192.168.1.199:58102");
074  }
075
076  @Test
077  public void testParseOfBytes() {
078    final String snStr = "www.EXAMPLE.org,1234,5678";
079    ServerName sn = ServerName.valueOf(snStr);
080    byte[] versionedBytes = sn.getVersionedBytes();
081    ServerName parsedSn = ServerName.parseVersionedServerName(versionedBytes);
082    assertEquals(sn.toString(), parsedSn.toString());
083    assertEquals(sn.getHostnameLowerCase(), parsedSn.getHostnameLowerCase());
084    assertEquals(sn.getPort(), parsedSn.getPort());
085    assertEquals(sn.getStartCode(), parsedSn.getStartCode());
086
087    final String hostnamePortStr = sn.getAddress().toString();
088    byte[] bytes = Bytes.toBytes(hostnamePortStr);
089    parsedSn = ServerName.parseVersionedServerName(bytes);
090    assertEquals(sn.getHostnameLowerCase(), parsedSn.getHostnameLowerCase());
091    assertEquals(sn.getPort(), parsedSn.getPort());
092    assertEquals(ServerName.NON_STARTCODE, parsedSn.getStartCode());
093  }
094
095  @Test
096  public void testServerName() {
097    ServerName sn = ServerName.valueOf("www.example.org", 1234, 5678);
098    ServerName sn2 = ServerName.valueOf("www.example.org", 1234, 5678);
099    ServerName sn3 = ServerName.valueOf("www.example.org", 1234, 56789);
100    assertTrue(sn.equals(sn2));
101    assertFalse(sn.equals(sn3));
102    assertEquals(sn.hashCode(), sn2.hashCode());
103    assertNotSame(sn.hashCode(), sn3.hashCode());
104    assertEquals(sn.toString(), ServerName.valueOf("www.example.org", 1234, 5678).toString());
105    assertEquals(sn.toString(), ServerName.valueOf("www.example.org:1234", 5678).toString());
106    assertEquals("www.example.org" + ServerName.SERVERNAME_SEPARATOR + "1234"
107      + ServerName.SERVERNAME_SEPARATOR + "5678", sn.toString());
108  }
109
110  @Test
111  public void testHostNameCaseSensitivity() {
112    ServerName lower = ServerName.valueOf("www.example.org", 1234, 5678);
113    ServerName upper = ServerName.valueOf("www.EXAMPLE.org", 1234, 5678);
114    assertEquals(0, lower.compareTo(upper));
115    assertEquals(0, upper.compareTo(lower));
116    assertEquals(lower.hashCode(), upper.hashCode());
117    assertTrue(lower.equals(upper));
118    assertTrue(upper.equals(lower));
119    assertTrue(ServerName.isSameAddress(lower, upper));
120  }
121
122  @Test
123  public void testInterning() {
124    ServerName sn1 = ServerName.valueOf("www.example.org", 1234, 5671);
125    assertSame(sn1, ServerName.valueOf("www.example.org", 1234, 5671));
126  }
127
128  @Test
129  public void testInterningDoesWeakReferences() {
130    for (int i = 0; i < 5000; i++) {
131      final int startcode = i++;
132      final ServerName sn1 = ServerName.valueOf("www.example.org", 1234, startcode);
133      assertSame(sn1, ServerName.valueOf("www.example.org", 1234, startcode));
134    }
135  }
136}