001    /**
002     * Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.dao.shard.advice;
016    
017    import com.liferay.portal.kernel.cache.CacheRegistryUtil;
018    import com.liferay.portal.kernel.dao.shard.ShardUtil;
019    import com.liferay.portal.kernel.log.Log;
020    import com.liferay.portal.kernel.log.LogFactoryUtil;
021    
022    import org.aopalliance.intercept.MethodInterceptor;
023    import org.aopalliance.intercept.MethodInvocation;
024    
025    /**
026     * @author Michael Young
027     * @author Alexander Chow
028     * @author Shuyang Zhou
029     */
030    public class ShardGloballyAdvice implements MethodInterceptor {
031    
032            /**
033             * Invoke a join point across all shards while ignoring the company service
034             * stack.
035             *
036             * @see ShardIterativelyAdvice
037             */
038            public Object invoke(MethodInvocation methodInvocation) throws Throwable {
039                    Object returnValue = null;
040    
041                    _shardAdvice.setGlobalCall(new Object());
042    
043                    try {
044                            for (String shardName : ShardUtil.getAvailableShardNames()) {
045                                    if (_log.isInfoEnabled()) {
046                                            _log.info(
047                                                    "Invoking shard " + shardName + " for " +
048                                                            methodInvocation.toString());
049                                    }
050    
051                                    ShardUtil.setTargetSource(shardName);
052    
053                                    _shardAdvice.pushCompanyService(shardName);
054    
055                                    try {
056                                            Object value = methodInvocation.proceed();
057    
058                                            if (shardName.equals(ShardUtil.getDefaultShardName())) {
059                                                    returnValue = value;
060                                            }
061                                    }
062                                    finally {
063                                            _shardAdvice.popCompanyService();
064    
065                                            CacheRegistryUtil.clear();
066                                    }
067                            }
068                    }
069                    finally {
070                            _shardAdvice.setGlobalCall(null);
071                    }
072    
073                    return returnValue;
074            }
075    
076            public void setShardAdvice(ShardAdvice shardAdvice) {
077                    _shardAdvice = shardAdvice;
078            }
079    
080            private static Log _log = LogFactoryUtil.getLog(ShardGloballyAdvice.class);
081    
082            private ShardAdvice _shardAdvice;
083    
084    }