| /* |
| * 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.Cluster; |
| import com.hazelcast.core.IdGenerator; |
| import com.hazelcast.core.Member; |
| import org.apache.karaf.cellar.core.ClusterManager; |
| import org.apache.karaf.cellar.core.Group; |
| import org.apache.karaf.cellar.core.Node; |
| import org.apache.karaf.cellar.core.utils.CombinedClassLoader; |
| import org.osgi.service.cm.ConfigurationAdmin; |
| |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| /** |
| * Cluster manager implementation powered by Hazelcast. |
| */ |
| public class HazelcastClusterManager extends HazelcastInstanceAware implements ClusterManager { |
| |
| private static final String GENERATOR_ID = "org.apache.karaf.cellar.idgen"; |
| |
| private IdGenerator idgenerator; |
| |
| private ConfigurationAdmin configurationAdmin; |
| private CombinedClassLoader combinedClassLoader; |
| |
| /** |
| * Get a Map in Hazelcast. |
| * |
| * @param mapName the Map name. |
| * @return the Map in Hazelcast. |
| */ |
| @Override |
| public Map getMap(String mapName) { |
| return instance.getMap(mapName); |
| } |
| |
| /** |
| * Get a List in Hazelcast. |
| * |
| * @param listName the List name. |
| * @return the List in Hazelcast. |
| */ |
| @Override |
| public List getList(String listName) { |
| return instance.getList(listName); |
| } |
| |
| /** |
| * Get a Set in Hazelcast. |
| * |
| * @param setName the Set name. |
| * @return the Set in Hazelcast. |
| */ |
| @Override |
| public Set getSet(String setName) { |
| return instance.getSet(setName); |
| } |
| |
| /** |
| * Get the list of Hazelcast nodes. |
| * |
| * @return a Set containing the Hazelcast nodes. |
| */ |
| @Override |
| public Set<Node> listNodes() { |
| Set<Node> nodes = new HashSet<Node>(); |
| |
| Cluster cluster = instance.getCluster(); |
| if (cluster != null) { |
| Set<Member> members = cluster.getMembers(); |
| if (members != null && !members.isEmpty()) { |
| for (Member member : members) { |
| HazelcastNode node = new HazelcastNode(member.getSocketAddress().getHostString(), member.getSocketAddress().getPort()); |
| nodes.add(node); |
| } |
| } |
| } |
| return nodes; |
| } |
| |
| /** |
| * Get the nodes with given IDs. |
| * |
| * @param ids a collection of IDs to look for. |
| * @return a Set containing the nodes. |
| */ |
| @Override |
| public Set<Node> listNodes(Collection<String> ids) { |
| Set<Node> nodes = new HashSet<Node>(); |
| if (ids != null && !ids.isEmpty()) { |
| Cluster cluster = instance.getCluster(); |
| if (cluster != null) { |
| Set<Member> members = cluster.getMembers(); |
| if (members != null && !members.isEmpty()) { |
| for (Member member : members) { |
| HazelcastNode node = new HazelcastNode(member.getSocketAddress().getHostString(), member.getSocketAddress().getPort()); |
| if (ids.contains(node.getId())) { |
| nodes.add(node); |
| } |
| } |
| } |
| } |
| } |
| return nodes; |
| } |
| |
| /** |
| * Get a node with a given ID. |
| * |
| * @param id the node ID. |
| * @return the node. |
| */ |
| @Override |
| public Node findNodeById(String id) { |
| if (id != null) { |
| Cluster cluster = instance.getCluster(); |
| if (cluster != null) { |
| Set<Member> members = cluster.getMembers(); |
| if (members != null && !members.isEmpty()) { |
| for (Member member : members) { |
| HazelcastNode node = new HazelcastNode(member.getSocketAddress().getHostString(), member.getSocketAddress().getPort()); |
| if (id.equals(node.getId())) { |
| return node; |
| } |
| } |
| } |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * List the nodes in a given cluster group. |
| * |
| * @param group the cluster group. |
| * @return a Set with the nodes. |
| */ |
| @Override |
| public Set<Node> listNodesByGroup(Group group) { |
| return group.getNodes(); |
| } |
| |
| /** |
| * Generate an unique ID. |
| * |
| * @return the generated unique ID. |
| */ |
| @Override |
| public synchronized String generateId() { |
| if (idgenerator == null) { |
| idgenerator = instance.getIdGenerator(GENERATOR_ID); |
| } |
| return String.valueOf(idgenerator.newId()); |
| } |
| |
| @Override |
| public void start() { |
| // nothing to do |
| } |
| |
| @Override |
| public void stop() { |
| if (instance != null && instance.getLifecycleService().isRunning()) { |
| instance.getLifecycleService().shutdown(); |
| } |
| } |
| |
| public ConfigurationAdmin getConfigurationAdmin() { |
| return configurationAdmin; |
| } |
| |
| public void setConfigurationAdmin(ConfigurationAdmin configurationAdmin) { |
| this.configurationAdmin = configurationAdmin; |
| } |
| |
| public CombinedClassLoader getCombinedClassLoader() { |
| return combinedClassLoader; |
| } |
| |
| public void setCombinedClassLoader(CombinedClassLoader combinedClassLoader) { |
| this.combinedClassLoader = combinedClassLoader; |
| } |
| |
| } |