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/***********************************************************************
* Copyright (c) 2008 by SAP AG, Walldorf.
* 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:
* SAP AG - initial API and implementation
***********************************************************************/
package org.eclipse.jst.jee.model.internal.mergers;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.jst.javaee.core.PersistenceContextRef;
import org.eclipse.jst.javaee.core.PropertyType;
/**
* Merges persistence context references artifacts.
*
* @author Dimitar Giormov
*
*/
public class PersistenceContextRefsMerger extends BaseRefsMerger {
/**
* Constructor for the class.
*
* @param base - base list with persistence context references.
* that have higher priority and are result of the merge.
* @param toMerge - toMerge list to be imported in base list.
*/
public PersistenceContextRefsMerger(List _base, List _toMerge) {
super(_base, _toMerge);
}
/* (non-Javadoc)
* @see org.eclipse.jst.javaee.ejb.model.mergers.common.ModelElementsMerger#process()
*/
@Override
public List process() throws ModelException {
List warnings = new ArrayList();
for (Object oToMerge : getToMergeElemets()) {
PersistenceContextRef envEntry = (PersistenceContextRef) oToMerge;
boolean found = false;
for (Object oBase : getBaseElements()) {
PersistenceContextRef envEntryBase = (PersistenceContextRef) oBase;
if (envEntryBase.getPersistenceContextRefName().equals(envEntry.getPersistenceContextRefName())){
copyMissingPropertesInBase(envEntryBase, envEntry);
found = true;
break;
}
}
if (found){
continue;
}
getBaseElements().add(EcoreUtil.copy((EObject) oToMerge));
}
return warnings;
}
protected void copyMissingPropertesInBase(PersistenceContextRef baseElement, PersistenceContextRef toMergeElement) {
if(baseElement.getPersistenceUnitName() == null){
baseElement.setPersistenceUnitName(toMergeElement.getPersistenceUnitName());
}
if(baseElement.getPersistenceContextType() == null){
baseElement.setPersistenceContextType(toMergeElement.getPersistenceContextType());
}
if(baseElement.getMappedName() == null){
baseElement.setMappedName(toMergeElement.getMappedName());
}
copyMissingPersistentPropertiesInBase(baseElement.getPersistenceProperties(), toMergeElement.getPersistenceProperties());
}
private void copyMissingPersistentPropertiesInBase(
List persistenceProperties, List persistenceProperties2) {
for (Object mergeProps : persistenceProperties2) {
PropertyType mProp = (PropertyType) mergeProps;
if(!containsProperty(persistenceProperties , mProp)){
persistenceProperties.add( mProp);
}
}
}
private boolean containsProperty(List list, PropertyType p){
for (Object baseProps : list) {
PropertyType bProp = (PropertyType) baseProps;
if(p.getName().equals(bProp.getName())){
return true;
}
}
return false;
}
@Override
protected void copyMissingPropertesInBase(Object base, Object toMerge){
copyMissingPropertesInBase((PersistenceContextRef) base, (PersistenceContextRef) toMerge);
}
}
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