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/*
* 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.hbase.coprocessor;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtil;
import org.apache.hadoop.hbase.MockRegionServerServices;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.RegionInfoBuilder;
import org.apache.hadoop.hbase.client.TableDescriptor;
import org.apache.hadoop.hbase.client.TableDescriptorBuilder;
import org.apache.hadoop.hbase.regionserver.ChunkCreator;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.regionserver.MemStoreLAB;
import org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost;
import org.apache.hadoop.hbase.regionserver.RegionServerServices;
import org.apache.hadoop.hbase.testclassification.CoprocessorTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.After;
import org.junit.Before;
import org.junit.ClassRule;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.TestName;
/**
* Test CoreCoprocessor Annotation works giving access to facility not usually available. Test
* RegionCoprocessor.
*/
@Category({ CoprocessorTests.class, SmallTests.class })
public class TestCoreRegionCoprocessor {
@ClassRule
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestCoreRegionCoprocessor.class);
@Rule
public TestName name = new TestName();
HBaseTestingUtil HTU = new HBaseTestingUtil();
private HRegion region = null;
private RegionServerServices rss;
@Before
public void before() throws IOException {
String methodName = this.name.getMethodName();
TableName tn = TableName.valueOf(methodName);
ColumnFamilyDescriptor cfd =
ColumnFamilyDescriptorBuilder.newBuilder(Bytes.toBytes(methodName)).build();
TableDescriptor td = TableDescriptorBuilder.newBuilder(tn).setColumnFamily(cfd).build();
RegionInfo ri = RegionInfoBuilder.newBuilder(tn).build();
this.rss = new MockRegionServerServices(HTU.getConfiguration());
ChunkCreator.initialize(MemStoreLAB.CHUNK_SIZE_DEFAULT, false, 0, 0, 0, null,
MemStoreLAB.INDEX_CHUNK_SIZE_PERCENTAGE_DEFAULT);
this.region = HRegion.openHRegion(ri, td, null, HTU.getConfiguration(), this.rss, null);
}
@After
public void after() throws IOException {
this.region.close();
}
/**
* No annotation with CoreCoprocessor. This should make it so I can NOT get at instance of a
* RegionServerServices instance after some gymnastics.
*/
public static class NotCoreRegionCoprocessor implements RegionCoprocessor {
public NotCoreRegionCoprocessor() {
}
}
/**
* Annotate with CoreCoprocessor. This should make it so I can get at instance of a
* RegionServerServices instance after some gymnastics.
*/
@org.apache.hadoop.hbase.coprocessor.CoreCoprocessor
public static class CoreRegionCoprocessor implements RegionCoprocessor {
public CoreRegionCoprocessor() {
}
}
/**
* Assert that when a Coprocessor is annotated with CoreCoprocessor, then it is possible to access
* a RegionServerServices instance. Assert the opposite too. Do it to RegionCoprocessors.
*/
@Test
public void testCoreRegionCoprocessor() throws IOException {
RegionCoprocessorHost rch = region.getCoprocessorHost();
RegionCoprocessorEnvironment env =
rch.load(null, NotCoreRegionCoprocessor.class.getName(), 0, HTU.getConfiguration());
assertFalse(env instanceof HasRegionServerServices);
env = rch.load(null, CoreRegionCoprocessor.class.getName(), 1, HTU.getConfiguration());
assertTrue(env instanceof HasRegionServerServices);
assertEquals(this.rss, ((HasRegionServerServices) env).getRegionServerServices());
}
}