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/*
* 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.tuscany.sca.endpoint.hazelcast;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.logging.Logger;
import org.apache.tuscany.sca.assembly.Endpoint;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.LifeCycleListener;
import org.apache.tuscany.sca.runtime.BaseEndpointRegistry;
import org.apache.tuscany.sca.runtime.EndpointRegistry;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
import org.apache.tuscany.sca.runtime.DomainRegistryURI;
import com.hazelcast.config.Config;
import com.hazelcast.config.MapConfig;
import com.hazelcast.config.NearCacheConfig;
import com.hazelcast.config.TcpIpConfig;
import com.hazelcast.config.XmlConfigBuilder;
import com.hazelcast.core.EntryEvent;
import com.hazelcast.core.EntryListener;
import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.IMap;
import com.hazelcast.core.MembershipEvent;
import com.hazelcast.core.MembershipListener;
import com.hazelcast.nio.Address;
/**
* An EndpointRegistry using a Hazelcast
*/
public class HazelcastEndpointRegistry extends BaseEndpointRegistry implements EndpointRegistry, LifeCycleListener, EntryListener<String, Endpoint>, MembershipListener {
private final static Logger logger = Logger.getLogger(HazelcastEndpointRegistry.class.getName());
protected DomainRegistryURI configURI;
private HazelcastInstance hazelcastInstance;
protected Map<Object, Object> map;
private List<String> localEndpoints = new ArrayList<String>();
public HazelcastEndpointRegistry(ExtensionPointRegistry registry,
Map<String, String> attributes,
String domainRegistryURI,
String domainURI) {
super(registry, attributes, domainRegistryURI, domainURI);
this.configURI = new DomainRegistryURI(domainRegistryURI);
}
public void start() {
if (map != null) {
throw new IllegalStateException("The registry has already been started");
}
if (configURI.toString().startsWith("tuscany:vm:")) {
map = new HashMap<Object, Object>();
} else {
initHazelcastInstance();
IMap imap = hazelcastInstance.getMap(configURI.getDomainName() + "/Endpoints");
imap.addEntryListener(this, true);
map = imap;
hazelcastInstance.getCluster().addMembershipListener(this);
}
}
public void stop() {
if (hazelcastInstance != null) {
hazelcastInstance.shutdown();
hazelcastInstance = null;
map = null;
}
}
private void initHazelcastInstance() {
Config config = new XmlConfigBuilder().build();
config.setPort(configURI.getListenPort());
//config.setPortAutoIncrement(false);
if (configURI.getBindAddress() != null) {
config.getNetworkConfig().getInterfaces().setEnabled(true);
config.getNetworkConfig().getInterfaces().clear();
config.getNetworkConfig().getInterfaces().addInterface(configURI.getBindAddress());
}
config.getGroupConfig().setName(configURI.getDomainName());
config.getGroupConfig().setPassword(configURI.getPassword());
if (configURI.isMulticastDisabled()) {
config.getNetworkConfig().getJoin().getMulticastConfig().setEnabled(false);
} else {
config.getNetworkConfig().getJoin().getMulticastConfig().setEnabled(true);
config.getNetworkConfig().getJoin().getMulticastConfig().setMulticastPort(configURI.getMulticastPort());
config.getNetworkConfig().getJoin().getMulticastConfig().setMulticastGroup(configURI.getMulticastAddress());
}
// config.getMapConfig(configURI.getDomainName() + "/Endpoints").setBackupCount(0);
if (configURI.getRemotes().size() > 0) {
TcpIpConfig tcpconfig = config.getNetworkConfig().getJoin().getJoinMembers();
tcpconfig.setEnabled(true);
List<Address> lsMembers = tcpconfig.getAddresses();
lsMembers.clear();
for (String addr : configURI.getRemotes()) {
String[] ipNPort = addr.split(":");
try {
lsMembers.add(new Address(ipNPort[0], Integer.parseInt(ipNPort[1])));
} catch (UnknownHostException e) {
throw new RuntimeException(e);
}
}
}
config.getMapConfig("default").setNearCacheConfig(new NearCacheConfig(0, 0, "NONE", 0, true));
this.hazelcastInstance = Hazelcast.newHazelcastInstance(config);
}
public void addEndpoint(Endpoint endpoint) {
map.put(endpoint.getURI(), endpoint);
localEndpoints.add(endpoint.getURI());
logger.info("Add endpoint - " + endpoint);
}
public List<Endpoint> findEndpoint(String uri) {
List<Endpoint> foundEndpoints = new ArrayList<Endpoint>();
for (Object v : map.values()) {
Endpoint endpoint = (Endpoint)v;
logger.fine("Matching against - " + endpoint);
if (matches(uri, endpoint.getURI())) {
if (!isLocal(endpoint)) {
endpoint.setRemote(true);
}
((RuntimeEndpoint)endpoint).bind(registry, this);
foundEndpoints.add(endpoint);
logger.fine("Found endpoint with matching service - " + endpoint);
}
}
return foundEndpoints;
}
private boolean isLocal(Endpoint endpoint) {
return localEndpoints.contains(endpoint.getURI());
}
public Endpoint getEndpoint(String uri) {
return (Endpoint)map.get(uri);
}
public List<Endpoint> getEndpoints() {
return new ArrayList(map.values());
}
public void removeEndpoint(Endpoint endpoint) {
map.remove(endpoint.getURI());
localEndpoints.remove(endpoint.getURI());
logger.info("Removed endpoint - " + endpoint);
}
public void entryAdded(EntryEvent<String, Endpoint> event) {
entryAdded(event.getKey(), event.getValue());
}
public void entryEvicted(EntryEvent<String, Endpoint> event) {
// Should not happen
}
public void entryRemoved(EntryEvent<String, Endpoint> event) {
entryRemoved(event.getKey(), event.getValue());
}
public void entryUpdated(EntryEvent<String, Endpoint> event) {
entryUpdated(event.getKey(), null, event.getValue());
}
public void entryAdded(Object key, Object value) {
Endpoint newEp = (Endpoint)value;
if (!isLocal(newEp)) {
logger.info(" Remote endpoint added: " + newEp);
newEp.setRemote(true);
}
endpointAdded(newEp);
}
public void entryRemoved(Object key, Object value) {
Endpoint oldEp = (Endpoint)value;
if (!isLocal(oldEp)) {
logger.info(" Remote endpoint removed: " + value);
}
endpointRemoved(oldEp);
}
public void entryUpdated(Object key, Object oldValue, Object newValue) {
Endpoint oldEp = (Endpoint)oldValue;
Endpoint newEp = (Endpoint)newValue;
if (!isLocal(newEp)) {
logger.info(" Remote endpoint updated: " + newEp);
}
endpointUpdated(oldEp, newEp);
}
public void memberAdded(MembershipEvent event) {
}
public void memberRemoved(MembershipEvent event) {
}
}
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