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	20682: SAIL-239 (SAIL-294) - optimise AVM removeLocks into single delete
              - also verified SQL syntax across MySQL, PostgreSQL, Oracle, MSSQL & DB2
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@20773 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
		
	
		
			
				
	
	
		
			109 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			Java
		
	
	
	
	
	
			
		
		
	
	
			109 lines
		
	
	
		
			3.7 KiB
		
	
	
	
		
			Java
		
	
	
	
	
	
/*
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 * Copyright (C) 2005-2010 Alfresco Software Limited.
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 *
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 * This file is part of Alfresco
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 *
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 * Alfresco is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU Lesser General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * Alfresco is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public License
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 * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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 */
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package org.alfresco.repo.domain.avm;
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import java.io.Serializable;
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import java.util.Map;
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import org.alfresco.error.AlfrescoRuntimeException;
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import org.alfresco.repo.avm.locking.AVMLockingServiceImpl;
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import org.alfresco.repo.domain.propval.PropertyValueDAO;
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import org.alfresco.util.Pair;
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import org.alfresco.wcm.util.WCMUtil;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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/**
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 * Abstract implementation for AVMLock DAO.
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 *
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 * @author janv
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 * @since 3.4
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 */
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public abstract class AbstractAVMLockDAOImpl implements AVMLockDAO
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{
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    protected final Log logger = LogFactory.getLog(this.getClass());
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    private PropertyValueDAO propertyValueDAO;
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    public void setPropertyValueDAO(PropertyValueDAO propertyValueDAO)
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    {
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        this.propertyValueDAO = propertyValueDAO;
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    }
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    /**
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     * Default constructor.
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     */
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    public AbstractAVMLockDAOImpl()
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    {
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    }
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    /**
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     * {@inheritDoc}
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     */
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    public void removeLocks(String avmStore, String dirPathToMatch, final Map<String, String> lockDataToMatch)
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    {
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        Long avmLocksValueId = null;
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        Pair<Long, Serializable> valuePair = propertyValueDAO.getPropertyValue(AVMLockingServiceImpl.KEY_AVM_LOCKS);
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        if (valuePair == null)
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        {
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            // No such value, so no need to delete
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            return;
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        }
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        avmLocksValueId = valuePair.getFirst();
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        Long avmStoreNameId = null;
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        valuePair = propertyValueDAO.getPropertyValue(avmStore);
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        if (valuePair == null)
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        {
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            // No such value, so no need to delete
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            return;
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        }
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        avmStoreNameId = valuePair.getFirst();
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        String lockDataStoreKey = null;
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        String lockDataStoreValue = null;
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        if ((lockDataToMatch != null) && (lockDataToMatch.size() > 0))
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        {
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            lockDataStoreKey = WCMUtil.LOCK_KEY_STORE_NAME;
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            if ((lockDataToMatch.size() != 1) || (! lockDataToMatch.containsKey(lockDataStoreKey)))
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            {
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                throw new AlfrescoRuntimeException("Expected lockData to contain either no entries or only one entry with key: "+lockDataStoreKey);
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            }
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            lockDataStoreValue = lockDataToMatch.get(lockDataStoreKey);
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        }
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        int deleted = deletePropertyUniqueContexts(avmLocksValueId, avmStoreNameId, dirPathToMatch, lockDataStoreKey, lockDataStoreValue);
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        // Done
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        if (logger.isDebugEnabled())
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        {
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            logger.debug(
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                    "Deleted " + deleted + " unique property contexts: \n" +
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                    "   dirPathToMatch:  " + dirPathToMatch + "\n" +
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                    "   lockDataToMatch: " + lockDataToMatch);
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        }
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    }
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    protected abstract int deletePropertyUniqueContexts(Long avmLocksValueId, Long avmStoreNameId, String dirPathToMatch, String lockDataStoreKey, String lockDataStoreValue);
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}
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