001    /**
002     * Copyright (c) 2000-2012 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.kernel.concurrent;
016    
017    import com.liferay.portal.kernel.dao.shard.ShardUtil;
018    
019    import java.util.concurrent.Callable;
020    
021    /**
022     * @author Alexander Chow
023     */
024    public abstract class PortalCallable<V> implements Callable<V> {
025    
026            public PortalCallable(long companyId) {
027                    _companyId = companyId;
028            }
029    
030            public V call() throws Exception {
031                    ShardUtil.pushCompanyService(_companyId);
032    
033                    try {
034                            return doCall();
035                    }
036                    finally {
037                            ShardUtil.popCompanyService();
038                    }
039            }
040    
041            protected abstract V doCall() throws Exception;
042    
043            private long _companyId;
044    
045    }