| package org.apache.commons.jcs3.auxiliary.remote; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.List; |
| |
| import org.apache.commons.jcs3.auxiliary.remote.behavior.IRemoteCacheAttributes; |
| import org.apache.commons.jcs3.auxiliary.remote.server.behavior.RemoteType; |
| import org.apache.commons.jcs3.engine.CacheStatus; |
| import org.apache.commons.jcs3.engine.behavior.IElementSerializer; |
| import org.apache.commons.jcs3.engine.logging.behavior.ICacheEventLogger; |
| import org.apache.commons.jcs3.log.Log; |
| import org.apache.commons.jcs3.log.LogManager; |
| |
| /** |
| * Used to provide access to multiple services under nowait protection. Factory should construct |
| * NoWaitFacade to give to the composite cache out of caches it constructs from the varies manager |
| * to lateral services. |
| * <p> |
| * Typically, we only connect to one remote server per facade. We use a list of one |
| * RemoteCacheNoWait. |
| */ |
| public class RemoteCacheNoWaitFacade<K, V> |
| extends AbstractRemoteCacheNoWaitFacade<K, V> |
| { |
| /** log instance */ |
| private static final Log log = LogManager.getLog( RemoteCacheNoWaitFacade.class ); |
| |
| /** Provide factory instance to RemoteCacheFailoverRunner */ |
| private final RemoteCacheFactory cacheFactory; |
| |
| /** |
| * Constructs with the given remote cache, and fires events to any listeners. |
| * <p> |
| * @param noWaits |
| * @param rca |
| * @param cacheEventLogger |
| * @param elementSerializer |
| * @param cacheFactory |
| */ |
| public RemoteCacheNoWaitFacade( List<RemoteCacheNoWait<K,V>> noWaits, |
| IRemoteCacheAttributes rca, |
| ICacheEventLogger cacheEventLogger, |
| IElementSerializer elementSerializer, |
| RemoteCacheFactory cacheFactory) |
| { |
| super( noWaits, rca, cacheEventLogger, elementSerializer ); |
| this.cacheFactory = cacheFactory; |
| } |
| |
| /** |
| * Begin the failover process if this is a local cache. Clustered remote caches do not failover. |
| * <p> |
| * @param rcnw The no wait in error. |
| */ |
| @Override |
| protected void failover( RemoteCacheNoWait<K, V> rcnw ) |
| { |
| log.debug( "in failover for {0}", rcnw ); |
| |
| if ( getAuxiliaryCacheAttributes().getRemoteType() == RemoteType.LOCAL ) |
| { |
| if ( rcnw.getStatus() == CacheStatus.ERROR ) |
| { |
| // start failover, primary recovery process |
| RemoteCacheFailoverRunner<K, V> runner = new RemoteCacheFailoverRunner<>( this, this.cacheFactory ); |
| runner.setDaemon( true ); |
| runner.start(); |
| runner.notifyError(); |
| |
| if ( getCacheEventLogger() != null ) |
| { |
| getCacheEventLogger().logApplicationEvent( "RemoteCacheNoWaitFacade", "InitiatedFailover", |
| rcnw + " was in error." ); |
| } |
| } |
| else |
| { |
| log.info( "The noWait is not in error" ); |
| } |
| } |
| } |
| |
| } |