/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.partition.membergroup;
import com.hazelcast.core.Member;
import com.hazelcast.instance.MemberImpl;
import com.hazelcast.nio.Address;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
public class HostAwareMemberGroupFactory extends BackupSafeMemberGroupFactory implements MemberGroupFactory {
@Override
protected Set<MemberGroup> createInternalMemberGroups(Collection<? extends Member> allMembers) {
Map<String, MemberGroup> groups = new HashMap<String, MemberGroup>();
for (Member member : allMembers) {
Address address = ((MemberImpl) member).getAddress();
MemberGroup group = groups.get(address.getHost());
if (group == null) {
group = new DefaultMemberGroup();
groups.put(address.getHost(), group);
}
group.addMember(member);
}
return new HashSet<MemberGroup>(groups.values());
}
}