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1   /**
2    *
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *     http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing, software
14   * distributed under the License is distributed on an "AS IS" BASIS,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the License for the specific language governing permissions and
17   * limitations under the License.
18   */
19  package org.apache.hadoop.hbase.regionserver;
20  
21  import java.io.IOException;
22  import java.io.StringWriter;
23  import java.util.List;
24  
25  import org.apache.hadoop.hbase.HBaseConfiguration;
26  import org.apache.hadoop.hbase.HRegionInfo;
27  import org.apache.hadoop.hbase.HTableDescriptor;
28  import org.apache.hadoop.hbase.ServerName;
29  import org.apache.hadoop.hbase.TableName;
30  import org.apache.hadoop.hbase.protobuf.ResponseConverter;
31  import org.apache.hadoop.hbase.protobuf.generated.AdminProtos.GetOnlineRegionRequest;
32  import org.apache.hadoop.hbase.protobuf.generated.AdminProtos.GetServerInfoRequest;
33  import org.apache.hadoop.hbase.protobuf.generated.AdminProtos.GetServerInfoResponse;
34  import org.apache.hadoop.hbase.testclassification.SmallTests;
35  import org.apache.hadoop.hbase.tmpl.regionserver.RSStatusTmpl;
36  import org.apache.hadoop.hbase.util.Bytes;
37  import org.apache.hadoop.hbase.zookeeper.MasterAddressTracker;
38  import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher;
39  import org.junit.Before;
40  import org.junit.Test;
41  import org.junit.experimental.categories.Category;
42  import org.mockito.Mockito;
43  
44  import com.google.common.collect.Lists;
45  import com.google.protobuf.RpcController;
46  import com.google.protobuf.ServiceException;
47  import org.apache.commons.logging.Log;
48  import org.apache.commons.logging.LogFactory;
49  import org.apache.hadoop.hbase.HConstants;
50  import org.apache.hadoop.hbase.io.hfile.CacheConfig;
51  
52  /**
53   * Tests for the region server status page and its template.
54   */
55  @Category(SmallTests.class)
56  public class TestRSStatusServlet {
57    private static final Log LOG = LogFactory.getLog(TestRSStatusServlet.class);
58    private HRegionServer rs;
59    
60    static final int FAKE_IPC_PORT = 1585;
61    static final int FAKE_WEB_PORT = 1586;
62    
63    private final ServerName fakeServerName =
64        ServerName.valueOf("localhost", FAKE_IPC_PORT, 11111);
65    private final GetServerInfoResponse fakeResponse =
66      ResponseConverter.buildGetServerInfoResponse(fakeServerName, FAKE_WEB_PORT);
67  
68    private final ServerName fakeMasterAddress =
69        ServerName.valueOf("localhost", 60010, 1212121212);
70  
71    @Before
72    public void setupBasicMocks() throws IOException, ServiceException {
73      rs = Mockito.mock(HRegionServer.class);
74      Mockito.doReturn(HBaseConfiguration.create())
75        .when(rs).getConfiguration();
76      Mockito.doReturn(fakeResponse).when(rs).getServerInfo(
77        (RpcController)Mockito.any(), (GetServerInfoRequest)Mockito.any());
78      // Fake ZKW
79      ZooKeeperWatcher zkw = Mockito.mock(ZooKeeperWatcher.class);
80      Mockito.doReturn("fakequorum").when(zkw).getQuorum();
81      Mockito.doReturn(zkw).when(rs).getZooKeeper();
82  
83      // Fake CacheConfig
84      LOG.warn("The " + HConstants.HFILE_BLOCK_CACHE_SIZE_KEY + " is set to 0");
85      CacheConfig cacheConf = Mockito.mock(CacheConfig.class);
86      Mockito.doReturn(null).when(cacheConf).getBlockCache();
87      Mockito.doReturn(cacheConf).when(rs).getCacheConfig();
88      
89      // Fake MasterAddressTracker
90      MasterAddressTracker mat = Mockito.mock(MasterAddressTracker.class);
91      Mockito.doReturn(fakeMasterAddress).when(mat).getMasterAddress();
92      Mockito.doReturn(mat).when(rs).getMasterAddressTracker();
93  
94      MetricsRegionServer rms = Mockito.mock(MetricsRegionServer.class);
95      Mockito.doReturn(new MetricsRegionServerWrapperStub()).when(rms).getRegionServerWrapper();
96      Mockito.doReturn(rms).when(rs).getMetrics();
97    }
98    
99    @Test
100   public void testBasic() throws IOException, ServiceException {
101     new RSStatusTmpl().render(new StringWriter(), rs);
102   }
103   
104   @Test
105   public void testWithRegions() throws IOException, ServiceException {
106     HTableDescriptor htd = new HTableDescriptor(TableName.valueOf("mytable"));
107     List<HRegionInfo> regions = Lists.newArrayList(
108         new HRegionInfo(htd.getTableName(), Bytes.toBytes("a"), Bytes.toBytes("d")),
109         new HRegionInfo(htd.getTableName(), Bytes.toBytes("d"), Bytes.toBytes("z"))
110         );
111     Mockito.doReturn(ResponseConverter.buildGetOnlineRegionResponse(
112       regions)).when(rs).getOnlineRegion((RpcController)Mockito.any(),
113         (GetOnlineRegionRequest)Mockito.any());
114     
115     new RSStatusTmpl().render(new StringWriter(), rs);
116   }
117   
118   
119 
120 }
121