mirror of
https://github.com/Alfresco/alfresco-community-repo.git
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Moving to root below branch label
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2005 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Derek Hulley
@@ -0,0 +1,507 @@
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/*
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* Copyright (C) 2005 Alfresco, Inc.
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*
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||||
* Licensed under the Mozilla Public License version 1.1
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||||
* with a permitted attribution clause. You may obtain a
|
||||
* copy of the License at
|
||||
*
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||||
* http://www.alfresco.org/legal/license.txt
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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||||
* language governing permissions and limitations under the
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* License.
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*/
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package org.alfresco.repo.node.db.hibernate;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.List;
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import org.alfresco.model.ContentModel;
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import org.alfresco.repo.domain.ChildAssoc;
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import org.alfresco.repo.domain.Node;
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import org.alfresco.repo.domain.NodeAssoc;
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import org.alfresco.repo.domain.NodeKey;
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import org.alfresco.repo.domain.NodeStatus;
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import org.alfresco.repo.domain.Store;
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import org.alfresco.repo.domain.StoreKey;
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import org.alfresco.repo.domain.hibernate.ChildAssocImpl;
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import org.alfresco.repo.domain.hibernate.NodeAssocImpl;
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import org.alfresco.repo.domain.hibernate.NodeImpl;
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import org.alfresco.repo.domain.hibernate.NodeStatusImpl;
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import org.alfresco.repo.domain.hibernate.StoreImpl;
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import org.alfresco.repo.node.db.NodeDaoService;
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import org.alfresco.repo.transaction.AlfrescoTransactionSupport;
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import org.alfresco.service.cmr.dictionary.InvalidTypeException;
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import org.alfresco.service.cmr.repository.ChildAssociationRef;
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import org.alfresco.service.namespace.QName;
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import org.alfresco.util.GUID;
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import org.hibernate.ObjectDeletedException;
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import org.hibernate.Query;
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import org.hibernate.Session;
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import org.springframework.dao.DataAccessException;
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import org.springframework.dao.DataIntegrityViolationException;
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import org.springframework.orm.hibernate3.HibernateCallback;
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import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
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/**
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* Hibernate-specific implementation of the persistence-independent <b>node</b> DAO interface
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*
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* @author Derek Hulley
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*/
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public class HibernateNodeDaoServiceImpl extends HibernateDaoSupport implements NodeDaoService
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{
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public static final String QUERY_GET_ALL_STORES = "store.GetAllStores";
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public static final String QUERY_GET_CHILD_ASSOC = "node.GetChildAssoc";
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public static final String QUERY_GET_NODE_ASSOC = "node.GetNodeAssoc";
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public static final String QUERY_GET_NODE_ASSOC_TARGETS = "node.GetNodeAssocTargets";
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public static final String QUERY_GET_NODE_ASSOC_SOURCES = "node.GetNodeAssocSources";
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/** a uuid identifying this unique instance */
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private String uuid;
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/**
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*
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*/
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public HibernateNodeDaoServiceImpl()
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{
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this.uuid = GUID.generate();
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}
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/**
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* Checks equality by type and uuid
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*/
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public boolean equals(Object obj)
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{
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if (obj == null)
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{
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return false;
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}
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else if (!(obj instanceof HibernateNodeDaoServiceImpl))
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{
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return false;
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}
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HibernateNodeDaoServiceImpl that = (HibernateNodeDaoServiceImpl) obj;
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return this.uuid.equals(that.uuid);
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}
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/**
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* @see #uuid
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*/
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public int hashCode()
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{
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return uuid.hashCode();
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}
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/**
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* Does this <tt>Session</tt> contain any changes which must be
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* synchronized with the store?
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*
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* @return true => changes are pending
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*/
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public boolean isDirty()
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{
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// create a callback for the task
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HibernateCallback callback = new HibernateCallback()
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{
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public Object doInHibernate(Session session)
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{
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return session.isDirty();
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}
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};
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// execute the callback
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return ((Boolean)getHibernateTemplate().execute(callback)).booleanValue();
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}
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/**
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* @see #QUERY_GET_ALL_STORES
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*/
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@SuppressWarnings("unchecked")
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public List<Store> getStores()
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{
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HibernateCallback callback = new HibernateCallback()
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{
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public Object doInHibernate(Session session)
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{
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Query query = session.getNamedQuery(HibernateNodeDaoServiceImpl.QUERY_GET_ALL_STORES);
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return query.list();
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}
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};
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List<Store> queryResults = (List) getHibernateTemplate().execute(callback);
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// done
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return queryResults;
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}
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/**
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* Ensures that the store protocol/identifier combination is unique
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*/
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public Store createStore(String protocol, String identifier)
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{
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// ensure that the name isn't in use
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Store store = getStore(protocol, identifier);
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if (store != null)
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||||
{
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throw new RuntimeException("A store already exists: \n" +
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" protocol: " + protocol + "\n" +
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" identifier: " + identifier + "\n" +
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" store: " + store);
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}
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store = new StoreImpl();
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// set key
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store.setKey(new StoreKey(protocol, identifier));
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// persist so that it is present in the hibernate cache
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getHibernateTemplate().save(store);
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// create and assign a root node
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Node rootNode = newNode(
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store,
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GUID.generate(),
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ContentModel.TYPE_STOREROOT);
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store.setRootNode(rootNode);
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// done
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return store;
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}
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public Store getStore(String protocol, String identifier)
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{
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StoreKey storeKey = new StoreKey(protocol, identifier);
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Store store = (Store) getHibernateTemplate().get(StoreImpl.class, storeKey);
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// done
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return store;
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}
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public Node newNode(Store store, String id, QName nodeTypeQName) throws InvalidTypeException
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{
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NodeKey key = new NodeKey(store.getKey(), id);
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// create (or reuse) the mandatory node status
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NodeStatus nodeStatus = (NodeStatus) getHibernateTemplate().get(NodeStatusImpl.class, key);
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if (nodeStatus == null)
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{
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nodeStatus = new NodeStatusImpl();
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}
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// set required status properties
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nodeStatus.setKey(key);
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nodeStatus.setDeleted(false);
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nodeStatus.setChangeTxnId(AlfrescoTransactionSupport.getTransactionId());
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// persist the nodestatus
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getHibernateTemplate().save(nodeStatus);
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// build a concrete node based on a bootstrap type
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Node node = new NodeImpl();
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// set other required properties
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node.setKey(key);
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node.setTypeQName(nodeTypeQName);
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node.setStore(store);
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node.setStatus(nodeStatus);
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// persist the node
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getHibernateTemplate().save(node);
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// done
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return node;
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}
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public Node getNode(String protocol, String identifier, String id)
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{
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try
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||||
{
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NodeKey nodeKey = new NodeKey(protocol, identifier, id);
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Object obj = getHibernateTemplate().get(NodeImpl.class, nodeKey);
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// done
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return (Node) obj;
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}
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catch (ObjectDeletedException e)
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||||
{
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return null;
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||||
}
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||||
catch (DataAccessException e)
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||||
{
|
||||
if (e.contains(ObjectDeletedException.class))
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||||
{
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||||
// the object no loner exists
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return null;
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}
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throw e;
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||||
}
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}
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||||
/**
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* Manually ensures that all cascading of associations is taken care of
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*/
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public void deleteNode(Node node, boolean cascade)
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{
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// delete all parent assocs
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Collection<ChildAssoc> parentAssocs = node.getParentAssocs();
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parentAssocs = new ArrayList<ChildAssoc>(parentAssocs);
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for (ChildAssoc assoc : parentAssocs)
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{
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deleteChildAssoc(assoc, false); // we don't cascade upwards
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}
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// delete all child assocs
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Collection<ChildAssoc> childAssocs = node.getChildAssocs();
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childAssocs = new ArrayList<ChildAssoc>(childAssocs);
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for (ChildAssoc assoc : childAssocs)
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{
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deleteChildAssoc(assoc, cascade); // potentially cascade downwards
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}
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// delete all target assocs
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Collection<NodeAssoc> targetAssocs = node.getTargetNodeAssocs();
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targetAssocs = new ArrayList<NodeAssoc>(targetAssocs);
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for (NodeAssoc assoc : targetAssocs)
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{
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deleteNodeAssoc(assoc);
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}
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// delete all source assocs
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Collection<NodeAssoc> sourceAssocs = node.getSourceNodeAssocs();
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sourceAssocs = new ArrayList<NodeAssoc>(sourceAssocs);
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for (NodeAssoc assoc : sourceAssocs)
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{
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deleteNodeAssoc(assoc);
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}
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// update the node status
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NodeStatus nodeStatus = node.getStatus();
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nodeStatus.setDeleted(true);
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nodeStatus.setChangeTxnId(AlfrescoTransactionSupport.getTransactionId());
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// finally delete the node
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getHibernateTemplate().delete(node);
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// done
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}
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/**
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* Fetch the node status, if it exists
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*/
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public NodeStatus getNodeStatus(String protocol, String identifier, String id)
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||||
{
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||||
try
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||||
{
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NodeKey nodeKey = new NodeKey(protocol, identifier, id);
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Object obj = getHibernateTemplate().get(NodeStatusImpl.class, nodeKey);
|
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// done
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return (NodeStatus) obj;
|
||||
}
|
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catch (DataAccessException e)
|
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{
|
||||
if (e.contains(ObjectDeletedException.class))
|
||||
{
|
||||
// the object no loner exists
|
||||
return null;
|
||||
}
|
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throw e;
|
||||
}
|
||||
}
|
||||
|
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public ChildAssoc newChildAssoc(
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Node parentNode,
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Node childNode,
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boolean isPrimary,
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QName assocTypeQName,
|
||||
QName qname)
|
||||
{
|
||||
ChildAssoc assoc = new ChildAssocImpl();
|
||||
assoc.setTypeQName(assocTypeQName);
|
||||
assoc.setIsPrimary(isPrimary);
|
||||
assoc.setQname(qname);
|
||||
assoc.buildAssociation(parentNode, childNode);
|
||||
// persist
|
||||
getHibernateTemplate().save(assoc);
|
||||
// done
|
||||
return assoc;
|
||||
}
|
||||
|
||||
public ChildAssoc getChildAssoc(
|
||||
Node parentNode,
|
||||
Node childNode,
|
||||
QName assocTypeQName,
|
||||
QName qname)
|
||||
{
|
||||
ChildAssociationRef childAssocRef = new ChildAssociationRef(
|
||||
assocTypeQName,
|
||||
parentNode.getNodeRef(),
|
||||
qname,
|
||||
childNode.getNodeRef());
|
||||
// get all the parent's child associations
|
||||
Collection<ChildAssoc> assocs = parentNode.getChildAssocs();
|
||||
// hunt down the desired assoc
|
||||
for (ChildAssoc assoc : assocs)
|
||||
{
|
||||
// is it a match?
|
||||
if (!assoc.getChildAssocRef().equals(childAssocRef)) // not a match
|
||||
{
|
||||
continue;
|
||||
}
|
||||
else
|
||||
{
|
||||
return assoc;
|
||||
}
|
||||
}
|
||||
// not found
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Manually enforces cascade deletions down primary associations
|
||||
*/
|
||||
public void deleteChildAssoc(ChildAssoc assoc, boolean cascade)
|
||||
{
|
||||
Node childNode = assoc.getChild();
|
||||
|
||||
// maintain inverse association sets
|
||||
assoc.removeAssociation();
|
||||
// remove instance
|
||||
getHibernateTemplate().delete(assoc);
|
||||
|
||||
if (cascade && assoc.getIsPrimary()) // the assoc is primary
|
||||
{
|
||||
// delete the child node
|
||||
deleteNode(childNode, cascade);
|
||||
/*
|
||||
* The child node deletion will cascade delete all assocs to
|
||||
* and from it, but we have safely removed this one, so no
|
||||
* duplicate call will be received to do this
|
||||
*/
|
||||
}
|
||||
}
|
||||
|
||||
public ChildAssoc getPrimaryParentAssoc(Node node)
|
||||
{
|
||||
// get the assocs pointing to the node
|
||||
Collection<ChildAssoc> parentAssocs = node.getParentAssocs();
|
||||
ChildAssoc primaryAssoc = null;
|
||||
for (ChildAssoc assoc : parentAssocs)
|
||||
{
|
||||
// ignore non-primary assocs
|
||||
if (!assoc.getIsPrimary())
|
||||
{
|
||||
continue;
|
||||
}
|
||||
else if (primaryAssoc != null)
|
||||
{
|
||||
// we have more than one somehow
|
||||
throw new DataIntegrityViolationException(
|
||||
"Multiple primary associations: \n" +
|
||||
" child: " + node + "\n" +
|
||||
" first primary assoc: " + primaryAssoc + "\n" +
|
||||
" second primary assoc: " + assoc);
|
||||
}
|
||||
primaryAssoc = assoc;
|
||||
// we keep looping to hunt out data integrity issues
|
||||
}
|
||||
// did we find a primary assoc?
|
||||
if (primaryAssoc == null)
|
||||
{
|
||||
// the only condition where this is allowed is if the given node is a root node
|
||||
Store store = node.getStore();
|
||||
Node rootNode = store.getRootNode();
|
||||
if (rootNode == null)
|
||||
{
|
||||
// a store without a root node - the entire store is hosed
|
||||
throw new DataIntegrityViolationException("Store has no root node: \n" +
|
||||
" store: " + store);
|
||||
}
|
||||
if (!rootNode.equals(node))
|
||||
{
|
||||
// it wasn't the root node
|
||||
throw new DataIntegrityViolationException("Non-root node has no primary parent: \n" +
|
||||
" child: " + node);
|
||||
}
|
||||
}
|
||||
// done
|
||||
return primaryAssoc;
|
||||
}
|
||||
|
||||
public NodeAssoc newNodeAssoc(Node sourceNode, Node targetNode, QName assocTypeQName)
|
||||
{
|
||||
NodeAssoc assoc = new NodeAssocImpl();
|
||||
assoc.setTypeQName(assocTypeQName);
|
||||
assoc.buildAssociation(sourceNode, targetNode);
|
||||
// persist
|
||||
getHibernateTemplate().save(assoc);
|
||||
// done
|
||||
return assoc;
|
||||
}
|
||||
|
||||
public NodeAssoc getNodeAssoc(
|
||||
final Node sourceNode,
|
||||
final Node targetNode,
|
||||
final QName assocTypeQName)
|
||||
{
|
||||
final NodeKey sourceKey = sourceNode.getKey();
|
||||
final NodeKey targetKey = targetNode.getKey();
|
||||
HibernateCallback callback = new HibernateCallback()
|
||||
{
|
||||
public Object doInHibernate(Session session)
|
||||
{
|
||||
Query query = session.getNamedQuery(HibernateNodeDaoServiceImpl.QUERY_GET_NODE_ASSOC);
|
||||
query.setString("sourceKeyProtocol", sourceKey.getProtocol())
|
||||
.setString("sourceKeyIdentifier", sourceKey.getIdentifier())
|
||||
.setString("sourceKeyGuid", sourceKey.getGuid())
|
||||
.setString("assocTypeQName", assocTypeQName.toString())
|
||||
.setString("targetKeyProtocol", targetKey.getProtocol())
|
||||
.setString("targetKeyIdentifier", targetKey.getIdentifier())
|
||||
.setString("targetKeyGuid", targetKey.getGuid());
|
||||
query.setMaxResults(1);
|
||||
return query.uniqueResult();
|
||||
}
|
||||
};
|
||||
Object queryResult = getHibernateTemplate().execute(callback);
|
||||
if (queryResult == null)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
NodeAssoc assoc = (NodeAssoc) queryResult;
|
||||
// done
|
||||
return assoc;
|
||||
}
|
||||
|
||||
@SuppressWarnings("unchecked")
|
||||
public Collection<Node> getNodeAssocTargets(final Node sourceNode, final QName assocTypeQName)
|
||||
{
|
||||
final NodeKey sourceKey = sourceNode.getKey();
|
||||
HibernateCallback callback = new HibernateCallback()
|
||||
{
|
||||
public Object doInHibernate(Session session)
|
||||
{
|
||||
Query query = session.getNamedQuery(HibernateNodeDaoServiceImpl.QUERY_GET_NODE_ASSOC_TARGETS);
|
||||
query.setString("sourceKeyProtocol", sourceKey.getProtocol())
|
||||
.setString("sourceKeyIdentifier", sourceKey.getIdentifier())
|
||||
.setString("sourceKeyGuid", sourceKey.getGuid())
|
||||
.setString("assocTypeQName", assocTypeQName.toString());
|
||||
return query.list();
|
||||
}
|
||||
};
|
||||
List<Node> queryResults = (List) getHibernateTemplate().execute(callback);
|
||||
// done
|
||||
return queryResults;
|
||||
}
|
||||
|
||||
@SuppressWarnings("unchecked")
|
||||
public Collection<Node> getNodeAssocSources(final Node targetNode, final QName assocTypeQName)
|
||||
{
|
||||
final NodeKey targetKey = targetNode.getKey();
|
||||
HibernateCallback callback = new HibernateCallback()
|
||||
{
|
||||
public Object doInHibernate(Session session)
|
||||
{
|
||||
Query query = session.getNamedQuery(HibernateNodeDaoServiceImpl.QUERY_GET_NODE_ASSOC_SOURCES);
|
||||
query.setString("targetKeyProtocol", targetKey.getProtocol())
|
||||
.setString("targetKeyIdentifier", targetKey.getIdentifier())
|
||||
.setString("targetKeyGuid", targetKey.getGuid())
|
||||
.setString("assocTypeQName", assocTypeQName.toString());
|
||||
return query.list();
|
||||
}
|
||||
};
|
||||
List<Node> queryResults = (List) getHibernateTemplate().execute(callback);
|
||||
// done
|
||||
return queryResults;
|
||||
}
|
||||
|
||||
public void deleteNodeAssoc(NodeAssoc assoc)
|
||||
{
|
||||
// maintain inverse association sets
|
||||
assoc.removeAssociation();
|
||||
// remove instance
|
||||
getHibernateTemplate().delete(assoc);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user