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Merged DEV/CHECK_EXISTS to HEAD

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svn merge svn://www.alfresco.org:3691/alfresco/BRANCHES/DEV/CHECK_EXISTS@3442 svn://www.alfresco.org:3691/alfresco/BRANCHES/DEV/CHECK_EXISTS@3590 .

TODO: Fix bug raising incorrect exception during UI paste of same-named file
Note:
- Added a new method to NodeService to get child by name
- Added a new method to FileFolderService to perform fast, direct lookups based on name


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@3591 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Derek Hulley
2006-08-23 16:50:12 +00:00
parent 3c9f179571
commit 4e4e342409
39 changed files with 1577 additions and 637 deletions
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364
source/java/org/alfresco/repo/node/db/hibernate/HibernateNodeDaoServiceImpl.java
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@@ -19,7 +19,9 @@ package org.alfresco.repo.node.db.hibernate;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.zip.CRC32;
import org.alfresco.error.AlfrescoRuntimeException;
import org.alfresco.model.ContentModel;
import org.alfresco.repo.domain.ChildAssoc;
import org.alfresco.repo.domain.Node;
@@ -37,9 +39,11 @@ import org.alfresco.repo.node.db.NodeDaoService;
import org.alfresco.repo.transaction.AlfrescoTransactionSupport;
import org.alfresco.repo.transaction.TransactionalDao;
import org.alfresco.service.cmr.dictionary.InvalidTypeException;
import org.alfresco.service.cmr.repository.AssociationRef;
import org.alfresco.service.cmr.repository.AssociationExistsException;
import org.alfresco.service.cmr.repository.ChildAssociationRef;
import org.alfresco.service.cmr.repository.DuplicateChildNodeNameException;
import org.alfresco.service.cmr.repository.NodeRef;
import org.alfresco.service.cmr.repository.StoreRef;
import org.alfresco.service.namespace.QName;
import org.alfresco.util.GUID;
import org.hibernate.ObjectDeletedException;
@@ -58,6 +62,14 @@ import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
public class HibernateNodeDaoServiceImpl extends HibernateDaoSupport implements NodeDaoService, TransactionalDao
{
private static final String QUERY_GET_ALL_STORES = "store.GetAllStores";
private static final String UPDATE_SET_CHILD_ASSOC_NAME = "node.updateChildAssocName";
private static final String QUERY_GET_CHILD_ASSOCS = "node.GetChildAssocs";
private static final String QUERY_GET_CHILD_ASSOC_BY_TYPE_AND_NAME = "node.GetChildAssocByTypeAndName";
private static final String QUERY_GET_CHILD_ASSOC_REFS = "node.GetChildAssocRefs";
private static final String QUERY_GET_NODE_ASSOC = "node.GetNodeAssoc";
private static final String QUERY_GET_NODE_ASSOCS_TO_AND_FROM = "node.GetNodeAssocsToAndFrom";
private static final String QUERY_GET_TARGET_ASSOCS = "node.GetTargetAssocs";
private static final String QUERY_GET_SOURCE_ASSOCS = "node.GetSourceAssocs";
private static final String QUERY_GET_CONTENT_DATA_STRINGS = "node.GetContentDataStrings";
/** a uuid identifying this unique instance */
@@ -303,25 +315,17 @@ public class HibernateNodeDaoServiceImpl extends HibernateDaoSupport implements
deleteChildAssoc(assoc, false); // we don't cascade upwards
}
// delete all child assocs
Collection<ChildAssoc> childAssocs = node.getChildAssocs();
Collection<ChildAssoc> childAssocs = getChildAssocs(node);
childAssocs = new ArrayList<ChildAssoc>(childAssocs);
for (ChildAssoc assoc : childAssocs)
{
deleteChildAssoc(assoc, cascade); // potentially cascade downwards
}
// delete all target assocs
Collection<NodeAssoc> targetAssocs = node.getTargetNodeAssocs();
targetAssocs = new ArrayList<NodeAssoc>(targetAssocs);
for (NodeAssoc assoc : targetAssocs)
// delete all node associations to and from
List<NodeAssoc> nodeAssocs = getNodeAssocsToAndFrom(node);
for (NodeAssoc assoc : nodeAssocs)
{
deleteNodeAssoc(assoc);
}
// delete all source assocs
Collection<NodeAssoc> sourceAssocs = node.getSourceNodeAssocs();
sourceAssocs = new ArrayList<NodeAssoc>(sourceAssocs);
for (NodeAssoc assoc : sourceAssocs)
{
deleteNodeAssoc(assoc);
getHibernateTemplate().delete(assoc);
}
// update the node status
NodeRef nodeRef = node.getNodeRef();
@@ -330,9 +334,34 @@ public class HibernateNodeDaoServiceImpl extends HibernateDaoSupport implements
nodeStatus.setChangeTxnId(AlfrescoTransactionSupport.getTransactionId());
// finally delete the node
getHibernateTemplate().delete(node);
// flush to ensure constraints can't be violated
getSession().flush();
// done
}
private long getCrc(String str)
{
CRC32 crc = new CRC32();
crc.update(str.getBytes());
return crc.getValue();
}
private static final String TRUNCATED_NAME_INDICATOR = "~~~";
private String getShortName(String str)
{
int length = str.length();
if (length <= 50)
{
return str;
}
else
{
StringBuilder ret = new StringBuilder(50);
ret.append(str.substring(0, 47)).append(TRUNCATED_NAME_INDICATOR);
return ret.toString();
}
}
public ChildAssoc newChildAssoc(
Node parentNode,
Node childNode,
@@ -340,17 +369,170 @@ public class HibernateNodeDaoServiceImpl extends HibernateDaoSupport implements
QName assocTypeQName,
QName qname)
{
/*
* This initial child association creation will fail IFF there is already
* an association of the given type between the two nodes. For new association
* creation, this can only occur if two transactions attempt to create a secondary
* child association between the same two nodes. As this is unlikely, it is
* appropriate to just throw a runtime exception and let the second transaction
* fail.
*
* We don't need to flush the session beforehand as there won't be any deletions
* of the assocation pending. The association deletes, on the other hand, have
* to flush early in order to ensure that the database unique index isn't violated
* if the association is recreated subsequently.
*/
String uuid = childNode.getUuid();
ChildAssoc assoc = new ChildAssocImpl();
assoc.setTypeQName(assocTypeQName);
assoc.setIsPrimary(isPrimary);
assoc.setChildNodeName(getShortName(uuid));
assoc.setChildNodeNameCrc(getCrc(uuid));
assoc.setQname(qname);
assoc.setIsPrimary(isPrimary);
assoc.buildAssociation(parentNode, childNode);
// persist
getHibernateTemplate().save(assoc);
// persist it, catching the duplicate child name
try
{
getHibernateTemplate().save(assoc);
}
catch (DataIntegrityViolationException e)
{
throw new AlfrescoRuntimeException("An association already exists between the two nodes: \n" +
" parent: " + parentNode.getId() + "\n" +
" child: " + childNode.getId() + "\n" +
" assoc: " + assocTypeQName,
e);
}
// done
return assoc;
}
public void setChildNameUnique(final ChildAssoc childAssoc, String childName)
{
/*
* As the Hibernate session is rendered useless when an exception is
* bubbled up, we go direct to the database to update the child association.
* This preserves the session and client code can catch the resulting
* exception and react to it whilst in the same transaction.
*
* We ensure that case-insensitivity is maintained by persisting
* the lowercase version of the child node name.
*/
String childNameNew = null;
if (childName == null)
{
childNameNew = childAssoc.getChild().getUuid();
}
else
{
childNameNew = childName.toLowerCase();
}
final String childNameNewShort = getShortName(childNameNew);
final long childNameNewCrc = getCrc(childNameNew);
// check if the name has changed
if (childAssoc.getChildNodeNameCrc() == childNameNewCrc)
{
if (childAssoc.getChildNodeName().equals(childNameNewShort))
{
// nothing changed
return;
}
}
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
{
session.flush();
Query query = session
.getNamedQuery(HibernateNodeDaoServiceImpl.UPDATE_SET_CHILD_ASSOC_NAME)
.setString("newName", childNameNewShort)
.setLong("newNameCrc", childNameNewCrc)
.setLong("childAssocId", childAssoc.getId());
return (Integer) query.executeUpdate();
}
};
try
{
Integer count = (Integer) getHibernateTemplate().execute(callback);
// refresh the entity directly
getHibernateTemplate().refresh(childAssoc);
if (count.intValue() == 0)
{
if (logger.isDebugEnabled())
{
logger.debug("ChildAssoc not updated: " + childAssoc.getId());
}
}
}
catch (DataIntegrityViolationException e)
{
NodeRef parentNodeRef = childAssoc.getParent().getNodeRef();
QName assocTypeQName = childAssoc.getTypeQName();
throw new DuplicateChildNodeNameException(parentNodeRef, assocTypeQName, childName);
}
}
@SuppressWarnings("unchecked")
public Collection<ChildAssoc> getChildAssocs(final Node parentNode)
{
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
{
Query query = session
.getNamedQuery(HibernateNodeDaoServiceImpl.QUERY_GET_CHILD_ASSOCS)
.setLong("parentId", parentNode.getId());
return query.list();
}
};
List<ChildAssoc> queryResults = (List) getHibernateTemplate().execute(callback);
return queryResults;
}
@SuppressWarnings("unchecked")
public Collection<ChildAssociationRef> getChildAssocRefs(final Node parentNode)
{
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
{
Query query = session
.getNamedQuery(HibernateNodeDaoServiceImpl.QUERY_GET_CHILD_ASSOC_REFS)
.setLong("parentId", parentNode.getId());
return query.list();
}
};
List<Object[]> queryResults = (List<Object[]>) getHibernateTemplate().execute(callback);
Collection<ChildAssociationRef> refs = new ArrayList<ChildAssociationRef>(queryResults.size());
NodeRef parentNodeRef = parentNode.getNodeRef();
for (Object[] row : queryResults)
{
String childProtocol = (String) row[5];
String childIdentifier = (String) row[6];
String childUuid = (String) row[7];
NodeRef childNodeRef = new NodeRef(new StoreRef(childProtocol, childIdentifier), childUuid);
QName assocTypeQName = (QName) row[0];
QName assocQName = (QName) row[1];
Boolean assocIsPrimary = (Boolean) row[2];
Integer assocIndex = (Integer) row[3];
ChildAssociationRef assocRef = new ChildAssociationRef(
assocTypeQName,
parentNodeRef,
assocQName,
childNodeRef,
assocIsPrimary.booleanValue(),
assocIndex.intValue());
refs.add(assocRef);
}
return refs;
}
public ChildAssoc getChildAssoc(
Node parentNode,
Node childNode,
@@ -363,7 +545,7 @@ public class HibernateNodeDaoServiceImpl extends HibernateDaoSupport implements
qname,
childNode.getNodeRef());
// get all the parent's child associations
Collection<ChildAssoc> assocs = parentNode.getChildAssocs();
Collection<ChildAssoc> assocs = getChildAssocs(parentNode);
// hunt down the desired assoc
for (ChildAssoc assoc : assocs)
{
@@ -381,6 +563,28 @@ public class HibernateNodeDaoServiceImpl extends HibernateDaoSupport implements
return null;
}
public ChildAssoc getChildAssoc(final Node parentNode, final QName assocTypeQName, final String childName)
{
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
{
String childNameLower = childName.toLowerCase();
String childNameShort = getShortName(childNameLower);
long childNameLowerCrc = getCrc(childNameLower);
Query query = session
.getNamedQuery(HibernateNodeDaoServiceImpl.QUERY_GET_CHILD_ASSOC_BY_TYPE_AND_NAME)
.setLong("parentId", parentNode.getId())
.setParameter("typeQName", assocTypeQName)
.setParameter("childNodeName", childNameShort)
.setLong("childNodeNameCrc", childNameLowerCrc);
return query.uniqueResult();
}
};
ChildAssoc childAssoc = (ChildAssoc) getHibernateTemplate().execute(callback);
return childAssoc;
}
/**
* Manually enforces cascade deletions down primary associations
*/
@@ -403,6 +607,10 @@ public class HibernateNodeDaoServiceImpl extends HibernateDaoSupport implements
* duplicate call will be received to do this
*/
}
// To ensure the validity of the constraint enforcement by the database,
// we have to flush here
getSession().flush();
}
public ChildAssoc getPrimaryParentAssoc(Node node)
@@ -458,45 +666,101 @@ public class HibernateNodeDaoServiceImpl extends HibernateDaoSupport implements
assoc.setTypeQName(assocTypeQName);
assoc.buildAssociation(sourceNode, targetNode);
// persist
getHibernateTemplate().save(assoc);
try
{
getHibernateTemplate().save(assoc);
}
catch (DataIntegrityViolationException e)
{
throw new AssociationExistsException(
sourceNode.getNodeRef(),
targetNode.getNodeRef(),
assocTypeQName,
e);
}
// done
return assoc;
}
@SuppressWarnings("unchecked")
public List<NodeAssoc> getNodeAssocsToAndFrom(final Node node)
{
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
{
Query query = session
.getNamedQuery(HibernateNodeDaoServiceImpl.QUERY_GET_NODE_ASSOCS_TO_AND_FROM)
.setLong("nodeId", node.getId());
return query.list();
}
};
List<NodeAssoc> results = (List<NodeAssoc>) getHibernateTemplate().execute(callback);
return results;
}
public NodeAssoc getNodeAssoc(
final Node sourceNode,
final Node targetNode,
final QName assocTypeQName)
{
AssociationRef nodeAssocRef = new AssociationRef(
sourceNode.getNodeRef(),
assocTypeQName,
targetNode.getNodeRef());
// get all the source's target associations
Collection<NodeAssoc> assocs = sourceNode.getTargetNodeAssocs();
// hunt down the desired assoc
for (NodeAssoc assoc : assocs)
HibernateCallback callback = new HibernateCallback()
{
// is it a match?
if (!assoc.getNodeAssocRef().equals(nodeAssocRef)) // not a match
public Object doInHibernate(Session session)
{
continue;
Query query = session
.getNamedQuery(HibernateNodeDaoServiceImpl.QUERY_GET_NODE_ASSOC)
.setLong("sourceId", sourceNode.getId())
.setLong("targetId", targetNode.getId())
.setParameter("assocTypeQName", assocTypeQName);
return query.uniqueResult();
}
else
};
NodeAssoc result = (NodeAssoc) getHibernateTemplate().execute(callback);
return result;
}
@SuppressWarnings("unchecked")
public List<NodeAssoc> getTargetNodeAssocs(final Node sourceNode)
{
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
{
return assoc;
Query query = session
.getNamedQuery(HibernateNodeDaoServiceImpl.QUERY_GET_TARGET_ASSOCS)
.setLong("sourceId", sourceNode.getId());
return query.list();
}
}
// not found
return null;
};
List<NodeAssoc> queryResults = (List<NodeAssoc>) getHibernateTemplate().execute(callback);
return queryResults;
}
@SuppressWarnings("unchecked")
public List<NodeAssoc> getSourceNodeAssocs(final Node targetNode)
{
HibernateCallback callback = new HibernateCallback()
{
public Object doInHibernate(Session session)
{
Query query = session
.getNamedQuery(HibernateNodeDaoServiceImpl.QUERY_GET_SOURCE_ASSOCS)
.setLong("targetId", targetNode.getId());
return query.list();
}
};
List<NodeAssoc> queryResults = (List<NodeAssoc>) getHibernateTemplate().execute(callback);
return queryResults;
}
public void deleteNodeAssoc(NodeAssoc assoc)
{
// maintain inverse association sets
assoc.removeAssociation();
// remove instance
// Remove instance
getHibernateTemplate().delete(assoc);
// Flush to ensure that the database constraints aren't violated if the assoc
// is recreated in the transaction
getSession().flush();
}
@SuppressWarnings("unchecked")
@@ -513,24 +777,4 @@ public class HibernateNodeDaoServiceImpl extends HibernateDaoSupport implements
List<String> queryResults = (List) getHibernateTemplate().execute(callback);
return queryResults;
}
}
}