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.rsgroup;
019
020import static org.junit.Assert.assertTrue;
021
022import java.io.IOException;
023import java.util.HashSet;
024import java.util.Set;
025import org.apache.hadoop.hbase.net.Address;
026import org.apache.yetus.audience.InterfaceAudience;
027import org.apache.yetus.audience.InterfaceStability;
028import org.slf4j.Logger;
029import org.slf4j.LoggerFactory;
030
031@InterfaceAudience.Private
032@InterfaceStability.Evolving
033public abstract class RSGroupTestingUtil {
034  private static final Logger LOG = LoggerFactory.getLogger(RSGroupTestingUtil.class);
035
036  private RSGroupTestingUtil() {
037  }
038
039  public static RSGroupInfo addRSGroup(final RSGroupAdmin rsGroupAdmin, String groupName,
040      int groupRSCount) throws IOException {
041    RSGroupInfo defaultInfo = rsGroupAdmin.getRSGroupInfo(RSGroupInfo.DEFAULT_GROUP);
042    assertTrue(defaultInfo != null);
043    assertTrue(defaultInfo.getServers().size() >= groupRSCount);
044    rsGroupAdmin.addRSGroup(groupName);
045
046    Set<Address> set = new HashSet<>();
047    for(Address server: defaultInfo.getServers()) {
048      if(set.size() == groupRSCount) {
049        break;
050      }
051      set.add(server);
052    }
053    rsGroupAdmin.moveServers(set, groupName);
054    RSGroupInfo result = rsGroupAdmin.getRSGroupInfo(groupName);
055    assertTrue(result.getServers().size() >= groupRSCount);
056    return result;
057  }
058
059}