mirror of
https://github.com/Alfresco/alfresco-community-repo.git
synced 2025-07-07 18:25:23 +00:00
ed3d9014f0
15963: Fix ETHREEOH-1962: Hibernate flush ordering incorrect for alf_qname - This merge will come from V3.2 15972 as well, but should not cause issues git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@16389 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
376 lines
14 KiB
Java
376 lines
14 KiB
Java
/*
|
|
* Copyright (C) 2005-2007 Alfresco Software Limited.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
* As a special exception to the terms and conditions of version 2.0 of
|
|
* the GPL, you may redistribute this Program in connection with Free/Libre
|
|
* and Open Source Software ("FLOSS") applications as described in Alfresco's
|
|
* FLOSS exception. You should have recieved a copy of the text describing
|
|
* the FLOSS exception, and it is also available here:
|
|
* http://www.alfresco.com/legal/licensing"
|
|
*/
|
|
package org.alfresco.repo.domain.hibernate;
|
|
|
|
import java.io.Serializable;
|
|
import java.util.HashMap;
|
|
import java.util.HashSet;
|
|
import java.util.Map;
|
|
import java.util.Set;
|
|
|
|
import org.alfresco.error.AlfrescoRuntimeException;
|
|
import org.alfresco.repo.cache.SimpleCache;
|
|
import org.alfresco.repo.domain.NamespaceEntity;
|
|
import org.alfresco.repo.domain.QNameDAO;
|
|
import org.alfresco.repo.domain.QNameEntity;
|
|
import org.alfresco.service.namespace.QName;
|
|
import org.alfresco.util.Pair;
|
|
import org.apache.commons.logging.Log;
|
|
import org.apache.commons.logging.LogFactory;
|
|
import org.hibernate.Query;
|
|
import org.hibernate.Session;
|
|
import org.springframework.orm.hibernate3.HibernateCallback;
|
|
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
|
|
|
|
/**
|
|
* Hibernate-specific implementation of the QName and Namespace DAO interface.
|
|
*
|
|
* @author Derek Hulley
|
|
* @since 2.1
|
|
*/
|
|
public class HibernateQNameDAOImpl extends HibernateDaoSupport implements QNameDAO
|
|
{
|
|
private static Log logger = LogFactory.getLog(HibernateQNameDAOImpl.class);
|
|
|
|
private static final String QUERY_GET_NS_BY_URI = "qname.GetNamespaceByUri";
|
|
private static final String QUERY_GET_QNAME_BY_URI_AND_LOCALNAME = "qname.GetQNameByUriAndLocalName";
|
|
|
|
private static final Long CACHE_NULL_LONG = Long.MIN_VALUE;
|
|
private SimpleCache<Serializable, Serializable> namespaceEntityCache;
|
|
private SimpleCache<Serializable, Serializable> qnameEntityCache;
|
|
|
|
/**
|
|
* Set the cache that maintains the ID-Namespace mappings and vice-versa.
|
|
*
|
|
* @param namespaceEntityCache the cache
|
|
*/
|
|
public void setNamespaceEntityCache(SimpleCache<Serializable, Serializable> namespaceEntityCache)
|
|
{
|
|
this.namespaceEntityCache = namespaceEntityCache;
|
|
}
|
|
|
|
/**
|
|
* Set the cache that maintains the ID-QName mappings and vice-versa.
|
|
*
|
|
* @param qnameEntityCache the cache
|
|
*/
|
|
public void setQnameEntityCache(SimpleCache<Serializable, Serializable> qnameEntityCache)
|
|
{
|
|
this.qnameEntityCache = qnameEntityCache;
|
|
}
|
|
|
|
public Pair<Long, String> getNamespace(Long id)
|
|
{
|
|
// Check the cache
|
|
String uri = (String) namespaceEntityCache.get(id);
|
|
if (uri != null)
|
|
{
|
|
return new Pair<Long, String>(id, uri);
|
|
}
|
|
// Get it from the DB
|
|
NamespaceEntity namespaceEntity = (NamespaceEntity) getSession().get(NamespaceEntityImpl.class, id);
|
|
if (namespaceEntity == null)
|
|
{
|
|
throw new AlfrescoRuntimeException("The NamespaceEntity ID " + id + " doesn't exist.");
|
|
}
|
|
uri = namespaceEntity.getUri();
|
|
// Cache it
|
|
namespaceEntityCache.put(uri, id);
|
|
namespaceEntityCache.put(id, uri);
|
|
// Done
|
|
return new Pair<Long, String>(id, uri);
|
|
}
|
|
|
|
public Pair<Long, String> getNamespace(final String namespaceUri)
|
|
{
|
|
// Check the cache
|
|
Long id = (Long) namespaceEntityCache.get(namespaceUri);
|
|
if (id != null)
|
|
{
|
|
if (id.equals(CACHE_NULL_LONG))
|
|
{
|
|
return null;
|
|
}
|
|
else
|
|
{
|
|
return new Pair<Long, String>(id, namespaceUri);
|
|
}
|
|
}
|
|
// Get it from the DB
|
|
HibernateCallback callback = new HibernateCallback()
|
|
{
|
|
public Object doInHibernate(Session session)
|
|
{
|
|
String oracleSafeUri = (namespaceUri.length() == 0) ? NamespaceEntityImpl.EMPTY_URI_SUBSTITUTE : namespaceUri;
|
|
|
|
Query query = session
|
|
.getNamedQuery(HibernateQNameDAOImpl.QUERY_GET_NS_BY_URI)
|
|
.setString("namespaceUri", oracleSafeUri);
|
|
return query.uniqueResult();
|
|
}
|
|
};
|
|
NamespaceEntity result = (NamespaceEntity) getHibernateTemplate().execute(callback);
|
|
if (result == null)
|
|
{
|
|
// Cache it
|
|
namespaceEntityCache.put(namespaceUri, CACHE_NULL_LONG);
|
|
// Done
|
|
return null;
|
|
}
|
|
else
|
|
{
|
|
id = result.getId();
|
|
// Cache it
|
|
namespaceEntityCache.put(id, namespaceUri);
|
|
namespaceEntityCache.put(namespaceUri, id);
|
|
// Done
|
|
return new Pair<Long, String>(id, namespaceUri);
|
|
}
|
|
}
|
|
|
|
public Pair<Long, String> getOrCreateNamespace(String namespaceUri)
|
|
{
|
|
Pair<Long, String> result = getNamespace(namespaceUri);
|
|
if (result == null)
|
|
{
|
|
result = newNamespace(namespaceUri);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
public Pair<Long, String> newNamespace(String namespaceUri)
|
|
{
|
|
if (logger.isDebugEnabled())
|
|
{
|
|
logger.debug("Persisting Namespace: " + namespaceUri);
|
|
}
|
|
NamespaceEntity namespace = new NamespaceEntityImpl();
|
|
namespace.setUri(namespaceUri);
|
|
// Persist
|
|
Session session = getSession();
|
|
Long id = (Long) session.save(namespace);
|
|
DirtySessionMethodInterceptor.flushSession(session, true);
|
|
// Force a flush because Hibernate doesn't always get the flush order right
|
|
// for DBs that use sequences for the PK: ETHREEOH-1962
|
|
DirtySessionMethodInterceptor.flushSession(getSession(), true);
|
|
// Cache it
|
|
namespaceEntityCache.put(id, namespaceUri);
|
|
namespaceEntityCache.put(namespaceUri, id);
|
|
// Done
|
|
return new Pair<Long, String>(id, namespaceUri);
|
|
}
|
|
|
|
public void updateNamespace(String oldNamespaceUri, String newNamespaceUri)
|
|
{
|
|
// First check for clashes
|
|
if (getNamespace(newNamespaceUri) != null)
|
|
{
|
|
throw new AlfrescoRuntimeException("Namespace URI '" + newNamespaceUri + "' already exists.");
|
|
}
|
|
// Get the old one
|
|
Pair<Long, String> oldNamespacePair = getNamespace(oldNamespaceUri);
|
|
if (oldNamespacePair == null)
|
|
{
|
|
// Nothing to rename
|
|
return;
|
|
}
|
|
NamespaceEntity oldNamespaceEntity = (NamespaceEntity) getSession().load(NamespaceEntityImpl.class, oldNamespacePair.getFirst());
|
|
oldNamespaceEntity.setUri(newNamespaceUri);
|
|
// Flush to force early failure
|
|
getSession().flush();
|
|
// Trash the cache
|
|
qnameEntityCache.clear();
|
|
// Done
|
|
}
|
|
|
|
public Pair<Long, QName> getQName(Long id)
|
|
{
|
|
// Check the cache
|
|
QName qname = (QName) qnameEntityCache.get(id);
|
|
if (qname != null)
|
|
{
|
|
return new Pair<Long, QName>(id, qname);
|
|
}
|
|
QNameEntity qnameEntity = (QNameEntity) getSession().get(QNameEntityImpl.class, id);
|
|
if (qnameEntity == null)
|
|
{
|
|
throw new AlfrescoRuntimeException("The QNameEntity ID " + id + " doesn't exist.");
|
|
}
|
|
qname = qnameEntity.getQName();
|
|
// Cache it
|
|
qnameEntityCache.put(id, qname);
|
|
qnameEntityCache.put(qname, id);
|
|
// Done
|
|
return new Pair<Long, QName>(id, qname);
|
|
}
|
|
|
|
public Pair<Long, QName> getQName(final QName qname)
|
|
{
|
|
// Check the cache
|
|
Long id = (Long) qnameEntityCache.get(qname);
|
|
if (id != null)
|
|
{
|
|
if (id.equals(CACHE_NULL_LONG))
|
|
{
|
|
return null;
|
|
}
|
|
else
|
|
{
|
|
return new Pair<Long, QName>(id, qname);
|
|
}
|
|
}
|
|
QNameEntity result;
|
|
// It's not in the cache, so query
|
|
HibernateCallback callback = new HibernateCallback()
|
|
{
|
|
public Object doInHibernate(Session session)
|
|
{
|
|
String namespaceUri = qname.getNamespaceURI();
|
|
String oracleSafeUri = (namespaceUri.length() == 0) ? NamespaceEntityImpl.EMPTY_URI_SUBSTITUTE : namespaceUri;
|
|
|
|
Query query = session
|
|
.getNamedQuery(HibernateQNameDAOImpl.QUERY_GET_QNAME_BY_URI_AND_LOCALNAME)
|
|
.setString("namespaceUri", oracleSafeUri)
|
|
.setString("localName", qname.getLocalName());
|
|
return query.uniqueResult();
|
|
}
|
|
};
|
|
result = (QNameEntity) getHibernateTemplate().execute(callback);
|
|
if (result == null)
|
|
{
|
|
// Cache it
|
|
qnameEntityCache.put(qname, CACHE_NULL_LONG);
|
|
// Done
|
|
return null;
|
|
}
|
|
else
|
|
{
|
|
id = result.getId();
|
|
// Cache it
|
|
qnameEntityCache.put(id, qname);
|
|
qnameEntityCache.put(qname, id);
|
|
// Done
|
|
return new Pair<Long, QName>(id, qname);
|
|
}
|
|
}
|
|
|
|
public Pair<Long, QName> getOrCreateQName(QName qname)
|
|
{
|
|
Pair<Long, QName> result = getQName(qname);
|
|
if (result == null)
|
|
{
|
|
result = newQName(qname);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
public Pair<Long, QName> newQName(QName qname)
|
|
{
|
|
if (logger.isDebugEnabled())
|
|
{
|
|
logger.debug("Persisting QName: " + qname);
|
|
}
|
|
final String namespaceUri = qname.getNamespaceURI();
|
|
final String localName = qname.getLocalName();
|
|
// Get the namespace
|
|
Pair<Long, String> namespacePair = getOrCreateNamespace(namespaceUri);
|
|
NamespaceEntity namespace = (NamespaceEntity) getSession().load(NamespaceEntityImpl.class, namespacePair.getFirst());
|
|
// Create the QNameEntity
|
|
QNameEntity qnameEntity = new QNameEntityImpl();
|
|
qnameEntity.setNamespace(namespace);
|
|
qnameEntity.setLocalName(localName);
|
|
// Persist
|
|
Long id = (Long) getSession().save(qnameEntity);
|
|
// Force a flush because Hibernate doesn't always get the flush order right
|
|
// for DBs that use sequences for the PK: ETHREEOH-1962
|
|
DirtySessionMethodInterceptor.flushSession(getSession(), true);
|
|
// Update the cache
|
|
qnameEntityCache.put(qname, id);
|
|
qnameEntityCache.put(id, qname);
|
|
// Done
|
|
return new Pair<Long, QName>(id, qname);
|
|
}
|
|
|
|
public Set<QName> convertIdsToQNames(Set<Long> ids)
|
|
{
|
|
Set<QName> qnames = new HashSet<QName>(ids.size() * 2 + 1);
|
|
for (Long id : ids)
|
|
{
|
|
QName qname = getQName(id).getSecond(); // getQName(id) is never null
|
|
qnames.add(qname);
|
|
}
|
|
return qnames;
|
|
}
|
|
|
|
public Map<QName, ? extends Object> convertIdMapToQNameMap(Map<Long, ? extends Object> idMap)
|
|
{
|
|
Map<QName, Object> qnameMap = new HashMap<QName, Object>(idMap.size() + 3);
|
|
for (Map.Entry<Long, ? extends Object> entry : idMap.entrySet())
|
|
{
|
|
QName qname = getQName(entry.getKey()).getSecond(); // getQName(id) is never null
|
|
qnameMap.put(qname, entry.getValue());
|
|
}
|
|
return qnameMap;
|
|
}
|
|
|
|
/**
|
|
* @return Returns a set of IDs mapping to the QNames provided. If create is <tt>false</tt>
|
|
* then there will not be corresponding entries for the QNames that don't exist.
|
|
* So there is no guarantee that the returned set will be ordered the same or even
|
|
* contain the same number of elements as the original unless create is <tt>true</tt>.
|
|
*/
|
|
public Set<Long> convertQNamesToIds(Set<QName> qnames, boolean create)
|
|
{
|
|
Set<Long> qnameIds = new HashSet<Long>(qnames.size(), 1.0F);
|
|
for (QName qname : qnames)
|
|
{
|
|
Long qnameEntityId = null;
|
|
if (create)
|
|
{
|
|
qnameEntityId = getOrCreateQName(qname).getFirst(); // getOrCreateQName(qname) is never null
|
|
}
|
|
else
|
|
{
|
|
Pair<Long, QName> qnamePair = getQName(qname);
|
|
if (qnamePair == null)
|
|
{
|
|
// No such qname and we are not creating one
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
qnameEntityId = qnamePair.getFirst();
|
|
}
|
|
}
|
|
if (qnameEntityId != null)
|
|
{
|
|
qnameIds.add(qnameEntityId);
|
|
}
|
|
}
|
|
// Done
|
|
return qnameIds;
|
|
}
|
|
}
|