| /* |
| * Copyright (c) 2010-2012, 2015 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: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.emf.cdo.internal.server.syncing; |
| |
| import org.eclipse.emf.cdo.common.branch.CDOBranch; |
| import org.eclipse.emf.cdo.internal.server.TransactionCommitContext; |
| import org.eclipse.emf.cdo.server.StoreThreadLocal; |
| import org.eclipse.emf.cdo.spi.common.branch.InternalCDOBranch; |
| import org.eclipse.emf.cdo.spi.common.branch.InternalCDOBranchManager; |
| import org.eclipse.emf.cdo.spi.server.InternalCommitContext; |
| import org.eclipse.emf.cdo.spi.server.InternalTransaction; |
| |
| import org.eclipse.net4j.util.om.monitor.Monitor; |
| import org.eclipse.net4j.util.om.monitor.OMMonitor; |
| |
| /** |
| * @author Eike Stepper |
| */ |
| public class OfflineClone extends SynchronizableRepository |
| { |
| public OfflineClone() |
| { |
| } |
| |
| @Override |
| public final Type getType() |
| { |
| return CLONE; |
| } |
| |
| @Override |
| public final void setType(Type type) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public InternalCommitContext createCommitContext(InternalTransaction transaction) |
| { |
| CDOBranch branch = transaction.getBranch(); |
| if (branch.isLocal()) |
| { |
| return createNormalCommitContext(transaction); |
| } |
| |
| if (getState() != ONLINE) |
| { |
| return createBranchingCommitContext(transaction, branch); |
| } |
| |
| return createWriteThroughCommitContext(transaction); |
| } |
| |
| protected InternalCommitContext createBranchingCommitContext(InternalTransaction transaction, CDOBranch branch) |
| { |
| long[] times = createCommitTimeStamp(new Monitor()); |
| CDOBranch offlineBranch = createOfflineBranch(branch, times[0] - 1L); |
| transaction.setBranchPoint(offlineBranch.getHead()); |
| return new BranchingCommitContext(transaction, times); |
| } |
| |
| protected CDOBranch createOfflineBranch(CDOBranch baseBranch, long baseTimeStamp) |
| { |
| try |
| { |
| StoreThreadLocal.setSession(getReplicatorSession()); |
| InternalCDOBranchManager branchManager = getBranchManager(); |
| return branchManager.createBranch(NEW_LOCAL_BRANCH, "Offline-" + baseTimeStamp, (InternalCDOBranch)baseBranch, //$NON-NLS-1$ |
| baseTimeStamp); |
| } |
| finally |
| { |
| StoreThreadLocal.release(); |
| } |
| } |
| |
| /** |
| * @author Eike Stepper |
| */ |
| protected final class BranchingCommitContext extends TransactionCommitContext |
| { |
| private long[] times; |
| |
| public BranchingCommitContext(InternalTransaction transaction, long[] times) |
| { |
| super(transaction); |
| this.times = times; |
| } |
| |
| @Override |
| protected void lockObjects() throws InterruptedException |
| { |
| // Do nothing |
| } |
| |
| @Override |
| protected long[] createTimeStamp(OMMonitor monitor) |
| { |
| return times; |
| } |
| } |
| } |