| /* |
| * 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 org.apache.karaf.cellar.hazelcast; |
| |
| import com.hazelcast.core.*; |
| import org.apache.karaf.cellar.core.Group; |
| import org.apache.karaf.cellar.core.GroupManager; |
| import org.apache.karaf.cellar.core.Synchronizer; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Cellar membership listener. |
| */ |
| public class CellarMembershipListener extends HazelcastInstanceAware implements MembershipListener { |
| |
| private static final transient Logger LOGGER = LoggerFactory.getLogger(CellarMembershipListener.class); |
| |
| private GroupManager groupManager; |
| private List<? extends Synchronizer> synchronizers; |
| |
| public CellarMembershipListener(HazelcastInstance instance) { |
| this.instance = instance; |
| instance.getCluster().addMembershipListener(this); |
| } |
| |
| @Override |
| public void memberAdded(MembershipEvent membershipEvent) { |
| Member member = membershipEvent.getMember(); |
| try { |
| Member local = instance.getCluster().getLocalMember(); |
| |
| if (local.equals(member) && synchronizers != null && !synchronizers.isEmpty()) { |
| Set<Group> groups = groupManager.listLocalGroups(); |
| if (groups != null && !groups.isEmpty()) { |
| for (Group group : groups) { |
| for (Synchronizer synchronizer : synchronizers) { |
| synchronizer.sync(group); |
| } |
| } |
| } |
| } |
| } catch (Exception e) { |
| LOGGER.warn("Error while calling memberAdded", e); |
| } |
| } |
| |
| @Override |
| public void memberRemoved(MembershipEvent membershipEvent) { |
| // nothing to do |
| } |
| |
| @Override |
| public void memberAttributeChanged(MemberAttributeEvent event) { |
| // nothing to do |
| } |
| |
| public GroupManager getGroupManager() { |
| return groupManager; |
| } |
| |
| public void setGroupManager(GroupManager groupManager) { |
| this.groupManager = groupManager; |
| } |
| |
| public List<? extends Synchronizer> getSynchronizers() { |
| return synchronizers; |
| } |
| |
| public void setSynchronizers(List<? extends Synchronizer> synchronizers) { |
| this.synchronizers = synchronizers; |
| } |
| |
| } |