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/*****************************************************************************
* Copyright (c) 2011 CEA LIST.
*
* 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:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.infra.emf.newchild.policies;
import java.util.Collection;
import java.util.LinkedList;
import java.util.List;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.papyrus.infra.emf.newchild.ncpolicy.NewChildPolicy;
import org.eclipse.papyrus.infra.emf.newchild.ncpolicy.NewChildPolicySet;
import org.eclipse.papyrus.infra.emf.utils.EMFHelper;
public class PolicyMatcher {
private List<NewChildFillPolicy> fillPolicies;
public void setPolicies(Collection<NewChildPolicySet> policySets) {
this.fillPolicies = new LinkedList<NewChildFillPolicy>();
for(NewChildPolicySet policySet : policySets) {
for(NewChildPolicy policy : policySet.getPolicies()) {
NewChildFillPolicy fillPolicy = NewChildFillPolicy.Factory.instance.getPolicy(policy);
fillPolicies.add(fillPolicy);
}
}
}
public List<NewChildFillPolicy> getMatchingPolicies(EClass eClass, EStructuralFeature role){
List<NewChildFillPolicy> matchedPolicies = new LinkedList<NewChildFillPolicy>();
for (NewChildFillPolicy policy : fillPolicies){
if(matches(policy, eClass, role)) {
matchedPolicies.add(policy);
}
}
return matchedPolicies;
}
private boolean matches(NewChildFillPolicy policy, EClass eClass, EStructuralFeature role) {
Collection<EClass> eClasses = policy.getEClasses();
Collection<String> roles = policy.getRoles();
if(eClasses.isEmpty() && roles.isEmpty()) {
return true;
}
if(roles.contains(role.getName()) && (eClasses.isEmpty() || isContained(eClass, eClasses))) {
return true;
}
if((roles.isEmpty() || roles.contains(role)) && isContained(eClass, eClasses)) {
return true;
}
return false;
}
private boolean isContained(EClass eClass, Collection<EClass> eClasses) {
for(EClass classToCheck : eClasses) {
if(EMFHelper.isSubclass(eClass, classToCheck)) {
return true;
}
}
return false;
}
}
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