/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.jcr.impl.storage.inmemory;
import org.exoplatform.services.jcr.datamodel.ItemData;
import org.exoplatform.services.jcr.datamodel.ItemType;
import org.exoplatform.services.jcr.datamodel.NodeData;
import org.exoplatform.services.jcr.datamodel.PropertyData;
import org.exoplatform.services.jcr.datamodel.QPath;
import org.exoplatform.services.jcr.datamodel.QPathEntry;
import org.exoplatform.services.jcr.datamodel.ValueData;
import org.exoplatform.services.jcr.storage.WorkspaceStorageConnection;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.TreeMap;
import javax.jcr.InvalidItemStateException;
import javax.jcr.ItemExistsException;
import javax.jcr.PropertyType;
import javax.jcr.RepositoryException;
/**
* Created by The eXo Platform SAS.
*
* @author <a href="mailto:gennady.azarenkov@exoplatform.com">Gennady Azarenkov</a>
* @version $Id: InmemoryStorageConnection.java 11907 2008-03-13 15:36:21Z ksm $
*/
public class InmemoryStorageConnection implements WorkspaceStorageConnection
{
private static Log log = ExoLogger.getLogger("exo.jcr.component.core.InmemoryStorageConnection");
private TreeMap items;
private TreeMap identifiers;
InmemoryStorageConnection(String name)
{
items = WorkspaceContainerRegistry.getInstance().getWorkspaceContainer(name);
identifiers = new TreeMap();
}
public ItemData getItemData(NodeData parentData, QPathEntry name, ItemType itemType) throws RepositoryException,
IllegalStateException
{
ItemData itemData = null;
QPath qPath = QPath.makeChildPath(parentData.getQPath(), name);
if (itemType == ItemType.NODE || itemType == ItemType.UNKNOWN)
{
itemData = (ItemData)items.get(new MapKey(qPath, ItemType.NODE));
}
if (itemType == ItemType.PROPERTY || itemType == ItemType.UNKNOWN && itemData == null)
{
itemData = (ItemData)items.get(new MapKey(qPath, ItemType.PROPERTY));
}
return itemData;
}
public ItemData getItemData(QPath qPath) throws RepositoryException, IllegalStateException
{
log.debug("InmemoryContainer finding " + qPath.getAsString());
Object o = items.get(new MapKey(qPath, ItemType.NODE));
if (o == null)
{
o = items.get(new MapKey(qPath, ItemType.PROPERTY));
}
log.debug("InmemoryContainer FOUND " + qPath.getAsString() + " " + o);
return (ItemData)o;
}
public ItemData getItemData(String identifier) throws RepositoryException, IllegalStateException
{
Iterator itemsIterator = items.values().iterator();
while (itemsIterator.hasNext())
{
ItemData data = (ItemData)itemsIterator.next();
if (data.getIdentifier().equals(identifier))
return data;
}
return null;
}
public List<NodeData> getChildNodesData(NodeData parent) throws RepositoryException, IllegalStateException
{
return null;
}
public List<PropertyData> getChildPropertiesData(NodeData parent) throws RepositoryException, IllegalStateException
{
return null;
}
public List<PropertyData> listChildPropertiesData(NodeData parent) throws RepositoryException, IllegalStateException
{
return null;
}
public int getChildNodesCount(NodeData nodeData) throws RepositoryException
{
return 0;
}
public int getChildPropertiesCount(NodeData nodeData) throws RepositoryException
{
return 0;
}
public List<PropertyData> getReferencesData(String identifier) throws RepositoryException, IllegalStateException
{
ArrayList<PropertyData> refs = new ArrayList<PropertyData>();
Iterator it = items.values().iterator();
while (it.hasNext())
{
ItemData itemData = (ItemData)it.next();
ValueData identifierVal = ((PropertyData)itemData).getValues().get(0);
try
{
if ((itemData instanceof PropertyData) && ((PropertyData)itemData).getType() == PropertyType.REFERENCE
&& new String(identifierVal.getAsByteArray()).equals(identifier))
{
refs.add((PropertyData)itemData);
}
}
catch (IOException e)
{
throw new RepositoryException(e);
}
}
return refs;
}
public void add(NodeData item) throws RepositoryException, UnsupportedOperationException, InvalidItemStateException,
IllegalStateException
{
if (items.get(new MapKey(item.getQPath(), ItemType.getItemType(item))) != null)
throw new ItemExistsException("WorkspaceContainerImpl.add(Item) item '" + item.getQPath().getAsString()
+ "' already exists!");
items.put(new MapKey(item.getQPath(), ItemType.getItemType(item)), item);
log.debug("InmemoryContainer added node " + item.getQPath().getAsString());
Iterator props = getChildProperties(item).iterator();
while (props.hasNext())
{
add((PropertyData)props.next());
}
Iterator nodes = getChildNodes(item).iterator();
while (nodes.hasNext())
{
add((NodeData)nodes.next());
}
}
public void add(PropertyData prop) throws RepositoryException, UnsupportedOperationException,
InvalidItemStateException, IllegalStateException
{
items.put(new MapKey(prop.getQPath(), ItemType.getItemType(prop)), prop);
log.debug("InmemoryContainer added property " + prop.getQPath().getAsString());
}
public void update(NodeData data) throws RepositoryException, UnsupportedOperationException,
InvalidItemStateException, IllegalStateException
{
throw new UnsupportedOperationException("not implemented");
}
public void reindex(NodeData oldData, NodeData data) throws RepositoryException, UnsupportedOperationException,
InvalidItemStateException, IllegalStateException
{
throw new UnsupportedOperationException("not implemented");
}
public void update(PropertyData item) throws RepositoryException, UnsupportedOperationException,
InvalidItemStateException, IllegalStateException
{
items.put(new MapKey(item.getQPath(), ItemType.getItemType(item)), item);
log.debug("InmemoryContainer updated " + item);
}
public void delete(NodeData data) throws RepositoryException, UnsupportedOperationException,
InvalidItemStateException, IllegalStateException
{
items.remove(new MapKey(data.getQPath(), ItemType.getItemType(data)));
log.debug("InmemoryContainer removed " + data.getQPath().getAsString());
}
public void delete(PropertyData data) throws RepositoryException, UnsupportedOperationException,
InvalidItemStateException, IllegalStateException
{
items.remove(new MapKey(data.getQPath(), ItemType.getItemType(data)));
log.debug("InmemoryContainer removed " + data.getQPath().getAsString());
}
public void commit() throws IllegalStateException, RepositoryException
{
}
public void rollback() throws IllegalStateException, RepositoryException
{
}
public void close() throws IllegalStateException, RepositoryException
{
}
public boolean isOpened()
{
return false;
}
protected List getChildProperties(NodeData node)
{
return null;
}
protected List getChildNodes(NodeData node)
{
return null;
}
public String dump()
{
String str = "Inmemory WorkspaceContainer Data: \n";
Iterator i = items.keySet().iterator();
while (i.hasNext())
{
MapKey d = (MapKey)i.next();
str += d.getQPath().getAsString() + '\t' + d.getItemType().toString() + "\n";
}
return str;
}
public void rename(NodeData destData) throws RepositoryException, UnsupportedOperationException,
InvalidItemStateException, IllegalStateException
{
throw new UnsupportedOperationException();
}
class MapKey
{
private final QPath path;
private final String key;
private final ItemType itemType;
MapKey(QPath path, ItemType itemType)
{
this.path = path;
this.itemType = itemType;
this.key = key(this.path, this.itemType);
}
protected String key(final QPath path, ItemType itemType)
{
StringBuilder sk = new StringBuilder();
sk.append(path.getAsString());
sk.append(itemType.toString());
return sk.toString();
}
@Override
public boolean equals(Object obj)
{
if (key.hashCode() == obj.hashCode() && obj instanceof MapKey)
return key.equals(((MapKey)obj).key);
return false;
}
@Override
public int hashCode()
{
return key.hashCode();
}
QPath getQPath()
{
return path;
}
ItemType getItemType()
{
return itemType;
}
}
}