/**
* 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.hdfs.server.namenode;
import static org.apache.hadoop.hdfs.server.namenode.startupprogress.Phase.LOADING_EDITS;
import static org.apache.hadoop.hdfs.server.namenode.startupprogress.Phase.LOADING_FSIMAGE;
import static org.apache.hadoop.hdfs.server.namenode.startupprogress.Phase.SAFEMODE;
import static org.apache.hadoop.hdfs.server.namenode.startupprogress.Phase.SAVING_CHECKPOINT;
import static org.mockito.Mockito.atLeastOnce;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import java.io.IOException;
import java.util.List;
import java.util.regex.Pattern;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspWriter;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.HdfsConfiguration;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.hdfs.server.namenode.startupprogress.StartupProgress;
import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocols;
import org.apache.hadoop.security.UserGroupInformation;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mockito.ArgumentCaptor;
import org.znerd.xmlenc.XMLOutputter;
public class TestNameNodeJspHelper {
private MiniDFSCluster cluster = null;
Configuration conf = null;
@Before
public void setUp() throws Exception {
conf = new HdfsConfiguration();
cluster = new MiniDFSCluster.Builder(conf).build();
cluster.waitActive();
}
@After
public void tearDown() throws Exception {
if (cluster != null)
cluster.shutdown();
}
@Test
public void testDelegationToken() throws IOException, InterruptedException {
NamenodeProtocols nn = cluster.getNameNodeRpc();
HttpServletRequest request = mock(HttpServletRequest.class);
UserGroupInformation ugi = UserGroupInformation.createRemoteUser("auser");
String tokenString = NamenodeJspHelper.getDelegationToken(nn, request,
conf, ugi);
//tokenString returned must be null because security is disabled
Assert.assertEquals(null, tokenString);
}
@Test
public void tesSecurityModeText() {
conf.set(DFSConfigKeys.HADOOP_SECURITY_AUTHENTICATION, "kerberos");
UserGroupInformation.setConfiguration(conf);
String securityOnOff = NamenodeJspHelper.getSecurityModeText();
Assert.assertTrue("security mode doesn't match. Should be ON",
securityOnOff.contains("ON"));
//Security is enabled
conf.set(DFSConfigKeys.HADOOP_SECURITY_AUTHENTICATION, "simple");
UserGroupInformation.setConfiguration(conf);
securityOnOff = NamenodeJspHelper.getSecurityModeText();
Assert.assertTrue("security mode doesn't match. Should be OFF",
securityOnOff.contains("OFF"));
}
@Test
public void testGenerateStartupProgress() throws Exception {
cluster.waitClusterUp();
NamenodeJspHelper.HealthJsp jsp = new NamenodeJspHelper.HealthJsp();
StartupProgress prog = NameNode.getStartupProgress();
JspWriter out = mock(JspWriter.class);
jsp.generateStartupProgress(out, prog);
ArgumentCaptor<String> captor = ArgumentCaptor.forClass(String.class);
verify(out, atLeastOnce()).println(captor.capture());
List<String> contents = captor.getAllValues();
// Verify 100% overall completion and all phases mentioned in output.
Assert.assertTrue(containsMatch(contents, "Elapsed Time\\:"));
Assert.assertTrue(containsMatch(contents, "Percent Complete\\:.*?100\\.00%"));
Assert.assertTrue(containsMatch(contents, LOADING_FSIMAGE.getDescription()));
Assert.assertTrue(containsMatch(contents, LOADING_EDITS.getDescription()));
Assert.assertTrue(containsMatch(contents,
SAVING_CHECKPOINT.getDescription()));
Assert.assertTrue(containsMatch(contents, SAFEMODE.getDescription()));
}
@Test
public void testGetRollingUpgradeText() {
Assert.assertEquals("", NamenodeJspHelper.getRollingUpgradeText(null));
}
/**
* Tests for non-null, non-empty NameNode label.
*/
@Test
public void testGetNameNodeLabel() {
String nameNodeLabel = NamenodeJspHelper.getNameNodeLabel(
cluster.getNameNode());
Assert.assertNotNull(nameNodeLabel);
Assert.assertFalse(nameNodeLabel.isEmpty());
}
/**
* Tests for non-null, non-empty NameNode label when called before
* initialization of the NameNode RPC server.
*/
@Test
public void testGetNameNodeLabelNullRpcServer() {
NameNode nn = mock(NameNode.class);
when(nn.getRpcServer()).thenReturn(null);
String nameNodeLabel = NamenodeJspHelper.getNameNodeLabel(
cluster.getNameNode());
Assert.assertNotNull(nameNodeLabel);
Assert.assertFalse(nameNodeLabel.isEmpty());
}
/**
* Tests that redirectToRandomDataNode does not throw NullPointerException if
* it finds a null FSNamesystem.
*/
@Test(expected=IOException.class)
public void testRedirectToRandomDataNodeNullNamesystem() throws Exception {
NameNode nn = mock(NameNode.class);
when(nn.getNamesystem()).thenReturn(null);
ServletContext context = mock(ServletContext.class);
when(context.getAttribute("name.node")).thenReturn(nn);
NamenodeJspHelper.redirectToRandomDataNode(context,
mock(HttpServletRequest.class), mock(HttpServletResponse.class));
}
/**
* Tests that XMLBlockInfo does not throw NullPointerException if it finds a
* null FSNamesystem.
*/
@Test
public void testXMLBlockInfoNullNamesystem() throws IOException {
XMLOutputter doc = new XMLOutputter(mock(JspWriter.class), "UTF-8");
new NamenodeJspHelper.XMLBlockInfo(null, 1L).toXML(doc);
}
/**
* Tests that XMLCorruptBlockInfo does not throw NullPointerException if it
* finds a null FSNamesystem.
*/
@Test
public void testXMLCorruptBlockInfoNullNamesystem() throws IOException {
XMLOutputter doc = new XMLOutputter(mock(JspWriter.class), "UTF-8");
new NamenodeJspHelper.XMLCorruptBlockInfo(null, mock(Configuration.class),
10, 1L).toXML(doc);
}
/**
* Checks if the list contains any string that partially matches the regex.
*
* @param list List<String> containing strings to check
* @param regex String regex to check
* @return boolean true if some string in list partially matches regex
*/
private static boolean containsMatch(List<String> list, String regex) {
Pattern pattern = Pattern.compile(regex);
for (String str: list) {
if (pattern.matcher(str).find()) {
return true;
}
}
return false;
}
}