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/*
* Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Caspar De Groot - initial API and implementation
*/
package org.eclipse.emf.cdo.server.internal.db4o;
import org.eclipse.emf.cdo.common.branch.CDOBranch;
import org.eclipse.emf.cdo.common.branch.CDOBranchManager;
import org.eclipse.emf.cdo.common.branch.CDOBranchPoint;
import org.eclipse.emf.cdo.common.id.CDOID;
import org.eclipse.emf.cdo.common.id.CDOIDUtil;
import org.eclipse.emf.cdo.common.lock.CDOLockUtil;
import org.eclipse.emf.cdo.common.lock.IDurableLockingManager.LockArea;
import org.eclipse.emf.cdo.common.lock.IDurableLockingManager.LockGrade;
import org.eclipse.emf.cdo.server.db4o.IDB4OStore;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
/**
* @author Caspar De Groot
*/
public class DB4OLockArea
{
private static Map<LockArea, DB4OLockArea> map = new HashMap<LockArea, DB4OLockArea>();
private String id;
private String userID;
private long timestamp;
private int branchID;
private boolean readOnly;
private List<DB4OLockEntry> lockEntries = new LinkedList<DB4OLockEntry>();
public static DB4OLockArea getPrimitiveLockArea(LockArea lockArea)
{
DB4OLockArea primitive = map.get(lockArea);
if (primitive == null)
{
primitive = new DB4OLockArea();
}
primitive.id = lockArea.getDurableLockingID();
primitive.userID = lockArea.getUserID();
primitive.timestamp = lockArea.getTimeStamp();
primitive.branchID = lockArea.getBranch().getID();
primitive.readOnly = lockArea.isReadOnly();
List<DB4OLockEntry> newList = DB4OLockEntry.getPrimitiveLockEntries(primitive, lockArea.getLocks());
primitive.lockEntries = newList;
return primitive;
}
public static LockArea getLockArea(IDB4OStore store, DB4OLockArea primitive)
{
// Reconstruct the branchpoint
//
CDOBranchManager branchManager = store.getRepository().getBranchManager();
CDOBranch branch = branchManager.getBranch(primitive.branchID);
CDOBranchPoint branchpoint = branch.getPoint(primitive.timestamp);
// Reconstruct the lockMap
//
Map<CDOID, LockGrade> lockMap = CDOIDUtil.createMap();
for (DB4OLockEntry entry : primitive.getLockEntries())
{
CDOID cdoid = CDOIDUtil.createLong(entry.getCdoID());
LockGrade lockGrade = LockGrade.get(entry.getLockGrade());
lockMap.put(cdoid, lockGrade);
}
LockArea lockArea = CDOLockUtil.createLockArea(primitive.id, primitive.userID, branchpoint, primitive.readOnly,
lockMap);
map.put(lockArea, primitive);
return lockArea;
}
public void setId(String id)
{
this.id = id;
}
public String getId()
{
return id;
}
public String getUserID()
{
return userID;
}
public long getTimestamp()
{
return timestamp;
}
public int getBranchID()
{
return branchID;
}
public List<DB4OLockEntry> getLockEntries()
{
return lockEntries;
}
}
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