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Audit DAO
- Audit config (alf_audit_cfg) now uses CRC check and persists via ContentService and alf_content_data - Reverted 3.3 references back to 3.2 git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@15805 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Derek Hulley
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/*
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* Copyright (C) 2005-2009 Alfresco Software Limited.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program 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 General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* As a special exception to the terms and conditions of version 2.0 of
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* the GPL, you may redistribute this Program in connection with Free/Libre
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* and Open Source Software ("FLOSS") applications as described in Alfresco's
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* FLOSS exception. You should have recieved a copy of the text describing
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* the FLOSS exception, and it is also available here:
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* http://www.alfresco.com/legal/licensing"
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*/
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package org.alfresco.repo.domain.audit;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URL;
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import java.util.zip.CRC32;
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import org.alfresco.error.AlfrescoRuntimeException;
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import org.alfresco.repo.content.MimetypeMap;
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import org.alfresco.repo.domain.contentdata.ContentDataDAO;
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import org.alfresco.service.cmr.repository.ContentData;
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import org.alfresco.service.cmr.repository.ContentService;
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import org.alfresco.service.cmr.repository.ContentWriter;
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import org.alfresco.util.Pair;
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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 helper DAO for <b>alf_audit_XXX</b> tables.
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*
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* @author Derek Hulley
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* @since 3.2
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*/
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public abstract class AbstractAuditDAOImpl implements AuditDAO
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{
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private static final Log logger = LogFactory.getLog(AbstractAuditDAOImpl.class);
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private ContentService contentService;
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private ContentDataDAO contentDataDAO;
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public void setContentService(ContentService contentService)
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{
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this.contentService = contentService;
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}
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public void setContentDataDAO(ContentDataDAO contentDataDAO)
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{
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this.contentDataDAO = contentDataDAO;
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}
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/**
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* {@inheritDoc}
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*/
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public Pair<Long, ContentData> getOrCreateAuditConfig(URL url)
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{
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InputStream is = null;
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try
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{
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is = url.openStream();
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// Calculate the CRC and find an entry that matches
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CRC32 crcCalc = new CRC32();
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byte[] buffer = new byte[1024];
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int read = -1;
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do
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{
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read = is.read(buffer);
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if (read < 0)
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{
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break;
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}
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crcCalc.update(buffer, 0, read);
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}
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while (true);
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long crc = crcCalc.getValue();
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// Find an existing entry
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AuditConfigEntity existingEntity = getAuditConfigByCrc(crc);
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if (existingEntity != null)
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{
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Long existingEntityId = existingEntity.getId();
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// Locate the content
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ContentData existingContentData = contentDataDAO.getContentData(
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existingEntity.getContentDataId()
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).getSecond();
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Pair<Long, ContentData> result = new Pair<Long, ContentData>(existingEntityId, existingContentData);
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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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"Found existing configuration with same CRC: \n" +
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" URL: " + url + "\n" +
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" CRC: " + crc + "\n" +
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" Result: " + result);
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}
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return result;
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}
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else
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{
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// Upload the content afresh
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is.close();
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is = url.openStream();
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ContentWriter writer = contentService.getWriter(null, null, false);
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writer.setEncoding("UTF-8");
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writer.setMimetype(MimetypeMap.MIMETYPE_XML);
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writer.putContent(is);
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ContentData newContentData = writer.getContentData();
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Long newContentDataId = contentDataDAO.createContentData(newContentData).getFirst();
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AuditConfigEntity newEntity = createAuditConfig(newContentDataId, crc);
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Pair<Long, ContentData> result = new Pair<Long, ContentData>(newEntity.getId(), newContentData);
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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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"Created new audit config: \n" +
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" URL: " + url + "\n" +
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" CRC: " + crc + "\n" +
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" Result: " + result);
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}
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return result;
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}
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}
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catch (IOException e)
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{
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throw new AlfrescoRuntimeException("Failed to read Audit configuration: " + url);
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}
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finally
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{
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if (is != null)
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{
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try { is.close(); } catch (Throwable e) {}
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}
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}
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}
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protected abstract AuditConfigEntity getAuditConfigByCrc(long crc);
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protected abstract AuditConfigEntity createAuditConfig(Long contentDataId, long crc);
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}
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