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/***************************************************************************
* Copyright (c) 2004 - 2008 Eike Stepper, Germany.
* 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.tests;
import org.eclipse.emf.cdo.internal.protocol.revision.DLRevisionHolder;
import org.eclipse.emf.cdo.internal.protocol.revision.LRURevisionHolder;
import org.eclipse.emf.cdo.internal.protocol.revision.LRURevisionList;
import org.eclipse.emf.cdo.protocol.id.CDOID;
import org.eclipse.emf.cdo.protocol.id.CDOIDProvider;
import org.eclipse.emf.cdo.protocol.id.CDOIDUtil;
import org.eclipse.emf.cdo.protocol.model.CDOClass;
import org.eclipse.emf.cdo.protocol.revision.CDORevision;
import org.eclipse.emf.cdo.protocol.revision.CDORevisionData;
import org.eclipse.emf.cdo.protocol.revision.CDORevisionResolver;
import org.eclipse.emf.cdo.protocol.revision.delta.CDORevisionDelta;
import org.eclipse.net4j.tests.AbstractOMTest;
import org.eclipse.net4j.util.io.ExtendedDataOutput;
import java.io.IOException;
import java.util.LinkedList;
import java.util.List;
/**
* @author Eike Stepper
*/
public class RevisionHolderTest extends AbstractOMTest
{
public void testAddHead() throws Exception
{
LinkedList<LRURevisionHolder> linkedList = new LinkedList<LRURevisionHolder>();
LRURevisionList list = new LRURevisionList(100);
validateList(list, 0);
for (int i = 0; i < 10; i++)
{
LRURevisionHolder holder = new LRURevisionHolder(list, new RevisionStub(i));
linkedList.addFirst(holder);
list.addHead(holder);
validateList(list, i + 1);
validateList(list, linkedList);
}
}
public void testAddTail() throws Exception
{
LinkedList<LRURevisionHolder> linkedList = new LinkedList<LRURevisionHolder>();
LRURevisionList list = new LRURevisionList(100);
validateList(list, 0);
for (int i = 0; i < 10; i++)
{
LRURevisionHolder holder = new LRURevisionHolder(list, new RevisionStub(i));
linkedList.addLast(holder);
list.addTail(holder);
validateList(list, i + 1);
validateList(list, linkedList);
}
}
public void testRemoveHead() throws Exception
{
LinkedList<LRURevisionHolder> linkedList = new LinkedList<LRURevisionHolder>();
LRURevisionList list = new LRURevisionList(100);
for (int i = 0; i < 10; i++)
{
LRURevisionHolder holder = new LRURevisionHolder(list, new RevisionStub(i));
linkedList.addLast(holder);
list.addTail(holder);
}
validateList(list, 10);
validateList(list, linkedList);
LRURevisionHolder holder = linkedList.removeFirst();
list.remove(holder);
validateList(list, 9);
validateList(list, linkedList);
}
public void testRemoveTail() throws Exception
{
LinkedList<LRURevisionHolder> linkedList = new LinkedList<LRURevisionHolder>();
LRURevisionList list = new LRURevisionList(100);
for (int i = 0; i < 10; i++)
{
LRURevisionHolder holder = new LRURevisionHolder(list, new RevisionStub(i));
linkedList.addLast(holder);
list.addTail(holder);
}
validateList(list, 10);
validateList(list, linkedList);
LRURevisionHolder holder = linkedList.removeLast();
list.remove(holder);
validateList(list, 9);
validateList(list, linkedList);
}
public void testRemoveMiddle() throws Exception
{
LinkedList<LRURevisionHolder> linkedList = new LinkedList<LRURevisionHolder>();
LRURevisionList list = new LRURevisionList(100);
for (int i = 0; i < 10; i++)
{
LRURevisionHolder holder = new LRURevisionHolder(list, new RevisionStub(i));
linkedList.addLast(holder);
list.addTail(holder);
}
validateList(list, 10);
validateList(list, linkedList);
LRURevisionHolder holder = linkedList.remove(5);
list.remove(holder);
validateList(list, 9);
validateList(list, linkedList);
}
public void testRemoveAll() throws Exception
{
LinkedList<LRURevisionHolder> linkedList = new LinkedList<LRURevisionHolder>();
LRURevisionList list = new LRURevisionList(100);
for (int i = 0; i < 10; i++)
{
LRURevisionHolder holder = new LRURevisionHolder(list, new RevisionStub(i));
linkedList.addLast(holder);
list.addTail(holder);
}
validateList(list, 10);
validateList(list, linkedList);
for (int i = 10; i > 0; i--)
{
LRURevisionHolder holder = linkedList.remove(0);
list.remove(holder);
validateList(list, i - 1);
validateList(list, linkedList);
}
validateList(list, 0);
validateList(list, linkedList);
}
private void validateList(LRURevisionList list, int size)
{
assertEquals(size, list.size());
if (size == 0)
{
assertEquals(list.getDLHead(), list.getDLTail());
}
else
{
assertNotNull(list.getDLHead());
assertNotNull(list.getDLTail());
}
assertEquals(list.getDLHead(), list.getDLHead().getDLNext().getDLPrev());
assertEquals(list.getDLTail(), list.getDLTail().getDLPrev().getDLNext());
DLRevisionHolder holder = list.getDLHead();
for (int i = 0; i < size; i++)
{
assertEquals(holder, holder.getDLNext().getDLPrev());
assertEquals(holder, holder.getDLPrev().getDLNext());
}
}
private void validateList(LRURevisionList list, List<LRURevisionHolder> expected)
{
assertEquals(expected.size(), list.size());
for (int i = 0; i < expected.size(); i++)
{
assertEquals(expected.get(i), list.get(i));
}
}
/**
* @author Eike Stepper
*/
private static final class RevisionStub implements CDORevision
{
private CDOID id;
public RevisionStub(long id)
{
this.id = CDOIDUtil.create(id);
}
public CDOClass getCDOClass()
{
return null;
}
public long getCreated()
{
return 0;
}
public CDORevisionData getData()
{
return null;
}
public CDOID getID()
{
return id;
}
public long getRevised()
{
return 0;
}
public CDORevisionResolver getRevisionResolver()
{
return null;
}
public int getVersion()
{
return 0;
}
public boolean isCurrent()
{
return false;
}
public boolean isResource()
{
return false;
}
public boolean isTransactional()
{
return false;
}
public boolean isValid(long timeStamp)
{
return false;
}
public CDORevisionDelta compare(CDORevision origin)
{
throw new UnsupportedOperationException();
}
public void merge(CDORevisionDelta delta)
{
throw new UnsupportedOperationException();
}
public void write(ExtendedDataOutput out, CDOIDProvider idProvider, int referenceChunk) throws IOException
{
throw new UnsupportedOperationException();
}
}
}
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