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Commit 3b6fd91b authored by Simon Barner's avatar Simon Barner
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Obsoleted by RemoveDeprecatedArtifactsMigrationProviderBase. 

refs 3120,3368
parent 0a8eac6b
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org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/extension/base/.ratings
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......@@ -5,6 +5,5 @@ ElementCompositorBase.java 8667281b2e5988b11390cf77deab5d118f297ab1 GREEN
MultiViolationConstraintCheckerBase.java e2f17f02fae75a17e955d48734ed043323f26f04 GREEN
PrototypeProviderBase.java 62de3ea391ecb515883490517aa2e94ab812d91b GREEN
RemoveDeprecatedArtifactsMigrationProviderBase.java 48ded3c14cd7f3fe567c820eebf46c40214cf304 YELLOW
RemoveUnknownFeatureMigrationProviderBase.java 0ffeb1f02a3f7476abcb467ebe07d3c5d5561b86 GREEN
TransformationContextChainBase.java b5195a9bde6d50268dda80fed993477d7a4447ee GREEN
TransformationProviderBase.java 0c3d114c6a3d854f74630417c05dd889ed02acdf GREEN
org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/extension/base/RemoveUnknownFeatureMigrationProviderBase.java deleted 100644 → 0
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View file @ 0a8eac6b
/*-------------------------------------------------------------------------+
| Copyright 2015 fortiss GmbH |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
+--------------------------------------------------------------------------*/
package org.fortiss.tooling.kernel.extension.base;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.util.FeatureMap;
import org.eclipse.emf.ecore.xml.type.AnyType;
import org.fortiss.tooling.kernel.extension.IMigrationProvider;
import org.fortiss.tooling.kernel.extension.data.ITopLevelElement;
/**
* Base class for {@link IMigrationProvider}s to selectively remove unknown features from a model.
*
* @author barner
*/
public abstract class RemoveUnknownFeatureMigrationProviderBase implements IMigrationProvider { // NO_UCD
// Migrators are retired after a release, but this base class should be available when needed.
// See https://af3-developer.fortiss.org/projects/autofocus3/wiki/Model_Migration
/** Type of container previously owning the known unknown feature. */
protected Class<?> containerType;
/**
* {@link EClass} representing how {@code anyType} references the unknown feature
* (e.g., {@link org.eclipse.emf.ecore.EcorePackage.Literals#EREFERENCE} or
* {@link org.eclipse.emf.ecore.EcorePackage.Literals#EATTRIBUTE}).
*/
private EClass fieldType;
/** Name of field of {@code anyType} that is used to reference the unknown feature. */
private String fieldName;
/** Class name of unknown feature to be removed. */
private String className;
/** Constructs a new {@link RemoveUnknownFeatureMigrationProviderBase}. */
protected RemoveUnknownFeatureMigrationProviderBase(Class<?> containerType, EClass fieldType,
final String fieldName, final String className) {
this.containerType = containerType;
this.fieldType = fieldType;
this.fieldName = fieldName;
this.className = className;
}
/** {@inheritDoc} */
@Override
public boolean needMigration(ITopLevelElement modelElement,
Map<EObject, AnyType> unknownFeatures) {
return doInternal(unknownFeatures, false);
}
/** {@inheritDoc} */
@Override
public void migrate(ITopLevelElement modelElement, Map<EObject, AnyType> unknownFeatures) {
doInternal(unknownFeatures, true);
}
/**
* Helper method to implement {@link #needMigration(ITopLevelElement, Map)} and
* {@link #migrate(ITopLevelElement, Map)}.
*
* @param unknownFeatures
* Set of unknown features to be investigated / manipulated
*
* @param migrate
* If {@code true}, the respective unknown features are removed. Otherwise, the
* return value indicates, if the migration is required.
*
* @return {@code true} iff there are unknown features that should be / have been removed.
*/
private boolean doInternal(Map<EObject, AnyType> unknownFeatures, boolean migrate) {
boolean rval = false;
for(EObject object : unknownFeatures.keySet()) {
if(containerType.isAssignableFrom(object.eClass().getInstanceClass())) {
AnyType anyType = unknownFeatures.get(object);
FeatureMap featureMap = anyType.getMixed();
List<FeatureMap.Entry> toRemove = new ArrayList<FeatureMap.Entry>();
for(FeatureMap.Entry feature : featureMap) {
EStructuralFeature eStructuralFeature = feature.getEStructuralFeature();
if(eStructuralFeature.eClass().equals(fieldType) &&
eStructuralFeature.getName().equals(fieldName) &&
getUnknownEClassName(feature).equals(className)) {
if(migrate) {
toRemove.add(feature);
rval = true;
} else {
return true;
}
}
}
featureMap.removeAll(toRemove);
}
}
return rval;
}
/**
* Returns the name of an unknown {@link EClass} (i.e., that is not part of the meta-model (any
* more)) represented by a given {@link org.eclipse.emf.ecore.util.FeatureMap.Entry}.
*
* In case the {@link EClass} is not represented by {@link AnyType} (e.g., because the
* {@link EClass} is (still) part of the meta-model), {@code null} is returned.
*/
private String getUnknownEClassName(FeatureMap.Entry feature) {
if(feature.getValue() instanceof AnyType) {
AnyType type = (AnyType)feature.getValue();
return type.eClass().getName();
}
return null;
}
}
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