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/*******************************************************************************
* Copyright (c) 2006, 2009 Obeo.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.emf.compare.examples.addressbook.addressbook.spec;
import java.util.Iterator;
import org.eclipse.emf.compare.examples.addressbook.addressbook.AddressBook;
import org.eclipse.emf.compare.examples.addressbook.addressbook.AddressbookFactory;
import org.eclipse.emf.compare.examples.addressbook.addressbook.BookVersion;
import org.eclipse.emf.compare.examples.addressbook.addressbook.impl.RepositoryImpl;
import org.eclipse.emf.ecore.util.EcoreUtil;
/**
* @author Cedric Brun <cedric.brun@obeo.fr>
*/
public class RepositorySpec extends RepositoryImpl {
@Override
public AddressBook checkout(int id) {
if (id == -1)
return checkout(getHead());
final Iterator<BookVersion> it = getHistory().iterator();
while (it.hasNext()) {
final BookVersion cur = it.next();
if (cur.getId() == id)
return checkout(cur.getBook());
}
return null;
}
private AddressBook checkout(AddressBook book) {
return (AddressBook)EcoreUtil.copy(book);
}
@Override
public void checkin() {
final int maxversion = getMaxVersion();
final BookVersion newVersion = AddressbookFactory.eINSTANCE.createBookVersion();
newVersion.setId(maxversion + 1);
newVersion.setBook((AddressBook)EcoreUtil.copy(getHead()));
}
private int getMaxVersion() {
int max = -1;
final Iterator<BookVersion> it = getHistory().iterator();
while (it.hasNext()) {
final BookVersion version = it.next();
if (version.getId() > max) {
max = version.getId();
}
}
return max;
}
}
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