/**
* 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.regionserver;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertTrue;
import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.apache.hadoop.hbase.testclassification.MetricsTests;
import org.junit.Test;
import org.junit.experimental.categories.Category;
@Category({MetricsTests.class, SmallTests.class})
public class TestMetricsRegionSourceImpl {
@Test
public void testCompareToHashCodeEquals() throws Exception {
MetricsRegionServerSourceFactory fact = CompatibilitySingletonFactory.getInstance(MetricsRegionServerSourceFactory.class);
MetricsRegionSource one = fact.createRegion(new RegionWrapperStub("TEST"));
MetricsRegionSource oneClone = fact.createRegion(new RegionWrapperStub("TEST"));
MetricsRegionSource two = fact.createRegion(new RegionWrapperStub("TWO"));
assertEquals(0, one.compareTo(oneClone));
assertEquals(one.hashCode(), oneClone.hashCode());
assertNotEquals(one, two);
assertTrue( one.compareTo(two) != 0);
assertTrue( two.compareTo(one) != 0);
assertTrue( two.compareTo(one) != one.compareTo(two));
assertTrue( two.compareTo(two) == 0);
}
@Test(expected = RuntimeException.class)
public void testNoGetRegionServerMetricsSourceImpl() throws Exception {
// This should throw an exception because MetricsRegionSourceImpl should only
// be created by a factory.
CompatibilitySingletonFactory.getInstance(MetricsRegionSource.class);
}
static class RegionWrapperStub implements MetricsRegionWrapper {
private String regionName;
public RegionWrapperStub(String regionName) {
this.regionName = regionName;
}
@Override
public String getTableName() {
return null;
}
@Override
public String getNamespace() {
return null;
}
@Override
public String getRegionName() {
return this.regionName;
}
@Override
public long getNumStores() {
return 0;
}
@Override
public long getNumStoreFiles() {
return 0;
}
@Override
public long getMemstoreSize() {
return 0;
}
@Override
public long getStoreFileSize() {
return 0;
}
@Override
public long getReadRequestCount() {
return 0;
}
@Override
public long getFilteredReadRequestCount() {
return 0;
}
@Override
public long getMaxStoreFileAge() {
return 0;
}
@Override
public long getMinStoreFileAge() {
return 0;
}
@Override
public long getAvgStoreFileAge() {
return 0;
}
@Override
public long getNumReferenceFiles() {
return 0;
}
@Override
public long getWriteRequestCount() {
return 0;
}
@Override
public long getNumFilesCompacted() {
return 0;
}
@Override
public long getNumBytesCompacted() {
return 0;
}
@Override
public long getLastMajorCompactionAge() {
return 0;
}
@Override
public long getNumCompactionsCompleted() {
return 0;
}
@Override
public long getNumCompactionsFailed() {
return 0;
}
@Override
public int getRegionHashCode() {
return regionName.hashCode();
}
/**
* Always return 0 for testing
*/
@Override
public int getReplicaId() {
return 0;
}
}
}