| /* |
| * 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.geode.cache.client.internal.locator.wan; |
| |
| import java.util.StringTokenizer; |
| import java.util.concurrent.ExecutorService; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import org.apache.geode.distributed.internal.DistributionConfig; |
| import org.apache.geode.distributed.internal.DistributionConfigImpl; |
| import org.apache.geode.distributed.internal.WanLocatorDiscoverer; |
| import org.apache.geode.internal.admin.remote.DistributionLocatorId; |
| import org.apache.geode.logging.internal.executors.LoggingExecutors; |
| import org.apache.geode.logging.internal.log4j.api.LogService; |
| |
| public class WanLocatorDiscovererImpl implements WanLocatorDiscoverer { |
| |
| private static final Logger logger = LogService.getLogger(); |
| |
| private volatile boolean stopped = false; |
| |
| private ExecutorService _executor; |
| |
| public WanLocatorDiscovererImpl() { |
| |
| } |
| |
| @Override |
| public void discover(int port, DistributionConfigImpl config, |
| LocatorMembershipListener locatorListener, final String hostnameForClients) { |
| this._executor = LoggingExecutors.newCachedThreadPool("WAN Locator Discovery Thread", true); |
| exchangeLocalLocators(port, config, locatorListener, hostnameForClients); |
| exchangeRemoteLocators(port, config, locatorListener, hostnameForClients); |
| this._executor.shutdown(); |
| } |
| |
| @Override |
| public void stop() { |
| this.stopped = true; |
| } |
| |
| @Override |
| public boolean isStopped() { |
| return this.stopped; |
| } |
| |
| /** |
| * For WAN 70 Exchange the locator information within the distributed system |
| * |
| */ |
| private void exchangeLocalLocators(int port, DistributionConfigImpl config, |
| LocatorMembershipListener locatorListener, final String hostnameForClients) { |
| String localLocator = config.getStartLocator(); |
| DistributionLocatorId locatorId = null; |
| if (localLocator.equals(DistributionConfig.DEFAULT_START_LOCATOR)) { |
| locatorId = new DistributionLocatorId(port, config.getBindAddress(), hostnameForClients); |
| } else { |
| locatorId = new DistributionLocatorId(localLocator); |
| } |
| LocatorHelper.addLocator(config.getDistributedSystemId(), locatorId, locatorListener, null); |
| |
| RemoteLocatorJoinRequest request = buildRemoteDSJoinRequest(port, config, hostnameForClients); |
| StringTokenizer locatorsOnThisVM = new StringTokenizer(config.getLocators(), ","); |
| while (locatorsOnThisVM.hasMoreTokens()) { |
| DistributionLocatorId localLocatorId = |
| new DistributionLocatorId(locatorsOnThisVM.nextToken()); |
| if (!locatorId.equals(localLocatorId)) { |
| LocatorDiscovery localDiscovery = |
| new LocatorDiscovery(this, localLocatorId, request, locatorListener); |
| LocatorDiscovery.LocalLocatorDiscovery localLocatorDiscovery = |
| localDiscovery.new LocalLocatorDiscovery(); |
| this._executor.execute(localLocatorDiscovery); |
| } |
| } |
| } |
| |
| /** |
| * For WAN 70 Exchange the locator information across the distributed systems (sites) |
| * |
| */ |
| private void exchangeRemoteLocators(int port, DistributionConfigImpl config, |
| LocatorMembershipListener locatorListener, final String hostnameForClients) { |
| RemoteLocatorJoinRequest request = buildRemoteDSJoinRequest(port, config, hostnameForClients); |
| String remoteDistributedSystems = config.getRemoteLocators(); |
| if (remoteDistributedSystems.length() > 0) { |
| StringTokenizer remoteLocators = new StringTokenizer(remoteDistributedSystems, ","); |
| while (remoteLocators.hasMoreTokens()) { |
| DistributionLocatorId remoteLocatorId = |
| new DistributionLocatorId(remoteLocators.nextToken()); |
| LocatorDiscovery localDiscovery = |
| new LocatorDiscovery(this, remoteLocatorId, request, locatorListener); |
| LocatorDiscovery.RemoteLocatorDiscovery remoteLocatorDiscovery = |
| localDiscovery.new RemoteLocatorDiscovery(); |
| this._executor.execute(remoteLocatorDiscovery); |
| } |
| } |
| } |
| |
| private RemoteLocatorJoinRequest buildRemoteDSJoinRequest(int port, DistributionConfigImpl config, |
| final String hostnameForClients) { |
| String localLocator = config.getStartLocator(); |
| DistributionLocatorId locatorId = null; |
| if (localLocator.equals(DistributionConfig.DEFAULT_START_LOCATOR)) { |
| locatorId = new DistributionLocatorId(port, config.getBindAddress(), hostnameForClients); |
| } else { |
| locatorId = new DistributionLocatorId(localLocator); |
| } |
| RemoteLocatorJoinRequest request = |
| new RemoteLocatorJoinRequest(config.getDistributedSystemId(), locatorId, ""); |
| return request; |
| } |
| |
| } |