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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.internal.common.model;
import org.eclipse.emf.cdo.common.model.CDOPackage;
import org.eclipse.emf.cdo.common.model.CDOPackageManager;
import org.eclipse.emf.cdo.common.model.core.CDOCorePackage;
import org.eclipse.emf.cdo.common.model.resource.CDOResourcePackage;
import org.eclipse.emf.cdo.internal.common.bundle.OM;
import org.eclipse.emf.cdo.internal.common.model.core.CDOCorePackageImpl;
import org.eclipse.emf.cdo.internal.common.model.resource.CDOResourcePackageImpl;
import org.eclipse.net4j.util.container.Container;
import org.eclipse.net4j.util.om.trace.ContextTracer;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
/**
* @author Eike Stepper
*/
public abstract class CDOPackageManagerImpl extends Container<CDOPackage> implements CDOPackageManager
{
private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG_MODEL, CDOPackageManagerImpl.class);
private ConcurrentMap<String, CDOPackage> packages = new ConcurrentHashMap<String, CDOPackage>();
private CDOCorePackage cdoCorePackage;
private CDOResourcePackage cdoResourcePackage;
public CDOPackageManagerImpl()
{
addPackage(cdoCorePackage = new CDOCorePackageImpl(this));
addPackage(cdoResourcePackage = new CDOResourcePackageImpl(this));
}
public CDOPackage lookupPackage(String uri)
{
if (uri == null)
{
return null;
}
return packages.get(uri);
}
public int getPackageCount()
{
return packages.size();
}
public CDOPackage[] getPackages()
{
return packages.values().toArray(new CDOPackage[packages.size()]);
}
public CDOPackage[] getElements()
{
return getPackages();
}
@Override
public boolean isEmpty()
{
return packages.isEmpty();
}
public CDOCorePackage getCDOCorePackage()
{
return cdoCorePackage;
}
public CDOResourcePackage getCDOResourcePackage()
{
return cdoResourcePackage;
}
public List<CDOPackage> getTransientPackages()
{
List<CDOPackage> result = new ArrayList<CDOPackage>();
for (CDOPackage cdoPackage : packages.values())
{
if (!cdoPackage.isPersistent())
{
result.add(cdoPackage);
}
}
return result;
}
public void addPackage(CDOPackage cdoPackage)
{
String uri = cdoPackage.getPackageURI();
if (uri == null)
{
throw new IllegalArgumentException("uri == null");
}
CDOPackage existing = packages.putIfAbsent(uri, cdoPackage);
if (existing == null)
{
if (TRACER.isEnabled())
{
TRACER.format("Added package: {0}", cdoPackage);
}
fireElementAddedEvent(cdoPackage);
}
else
{
throw new IllegalStateException("Duplicate package: " + cdoPackage);
}
}
public void removePackage(CDOPackage cdoPackage)
{
packages.remove(cdoPackage.getPackageURI());
fireElementRemovedEvent(cdoPackage);
}
/**
* @param cdoPackage
* is a proxy CDO package. The implementer of this method must only use the package URI of the cdoPackage
* passed in.
*/
protected abstract void resolve(CDOPackage cdoPackage);
/**
* Only called on clients for generated models
*/
protected abstract String provideEcore(CDOPackage cdoPackage);
}
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