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Bug: #3333 Signed-off-by: Michaël Charfadi <michael.charfadi@obeosoft.com>
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31 changes: 31 additions & 0 deletions
31
.../sirius-components-emf/src/main/java/org/eclipse/sirius/components/emf/MigrationData.java
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|---|---|---|
| @@ -0,0 +1,31 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2024 Obeo. | ||
| * This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v2.0 | ||
| * which accompanies this distribution, and is available at | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Obeo - initial API and implementation | ||
| *******************************************************************************/ | ||
| package org.eclipse.sirius.components.emf; | ||
|
|
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| /** | ||
| * POJO for MigrationData. | ||
| * | ||
| * @author mcharfadi | ||
| */ | ||
| public record MigrationData(String lastMigrationPerformed, String migrationVersion) { | ||
|
|
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| public static final String JSON_OBJECT_ROOT = "migration"; | ||
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| @Override | ||
| public String toString() { | ||
| return "MigrationData{" + | ||
| "lastMigrationPerformed='" + lastMigrationPerformed + '\'' + | ||
| ", migrationVersion='" + migrationVersion + '\'' + | ||
| '}'; | ||
| } | ||
| } |
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128 changes: 128 additions & 0 deletions
128
...va/org/eclipse/sirius/web/application/editingcontext/migration/IMigrationParticipant.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,128 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2024 Obeo. | ||
| * This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v2.0 | ||
| * which accompanies this distribution, and is available at | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Obeo - initial API and implementation | ||
| *******************************************************************************/ | ||
| package org.eclipse.sirius.web.application.editingcontext.migration; | ||
|
|
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| import org.eclipse.emf.ecore.EClass; | ||
| import org.eclipse.emf.ecore.EClassifier; | ||
| import org.eclipse.emf.ecore.EObject; | ||
| import org.eclipse.emf.ecore.EPackage; | ||
| import org.eclipse.emf.ecore.EStructuralFeature; | ||
| import org.eclipse.sirius.emfjson.resource.JsonResource; | ||
|
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| import com.google.gson.JsonObject; | ||
|
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| /** | ||
| * Interface of MigrationParticipant. | ||
| * | ||
| * @author mcharfadi | ||
| */ | ||
| public interface IMigrationParticipant { | ||
| String getVersion(); | ||
|
|
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| /** | ||
| * Called before a JsonResource is serialized. | ||
| * | ||
| * @param resource | ||
| * The JsonResource that is serialized | ||
| * @param jsonObject | ||
| * The root jsonObject | ||
| */ | ||
| default void preDeserialization(JsonResource resource, JsonObject jsonObject) { | ||
|
|
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| } | ||
|
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| /** | ||
| * Called after a JsonResource is serialized. | ||
| * | ||
| * @param resource | ||
| * The JsonResource that is serialized | ||
| * @param jsonObject | ||
| * The root jsonObject | ||
| */ | ||
| default void postSerialization(JsonResource resource, JsonObject jsonObject) { | ||
|
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| } | ||
|
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| /** | ||
| * Called during the parsing of JsonResources (at loading time). It allows to | ||
| * retrieve and modify an eobject just before it's loaded into the resource, | ||
| * after every feature were set. | ||
| * | ||
| * @param eObject | ||
| * the given eobject. | ||
| * @param jsonObject | ||
| * the jsonObject used to set the features of the eobject. | ||
| */ | ||
| default void getJSonObjectBeforeLoading(EObject eObject, JsonObject jsonObject) { | ||
|
|
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| } | ||
|
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| /** | ||
| * Called during the parsing of JsonResources (at loading time). If a feature value has changed since a previous | ||
| * version, use this method to return the correct expected value or null if it did not change. | ||
| * | ||
| * @param object | ||
| * the object containing the feature. | ||
| * @param feature | ||
| * the feature to set value. | ||
| * @param value | ||
| * the initial serialized value. | ||
| * @return the new value, or null otherwise. | ||
| */ | ||
| default Object getValue(EObject object, EStructuralFeature feature, Object value) { | ||
| return null; | ||
| } | ||
|
|
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| /** | ||
| * Called during the parsing of JsonResources (at loading time). It allows to | ||
| * retrieve a renamed EStructuralFeature from its old name. For example, if a | ||
| * feature 'aaa' has been renamed to 'bbb', then your MigrationParticipant | ||
| * should return the 'bbb' feature when given the 'aaa' name. | ||
| * | ||
| * @param eClass | ||
| * the given eClass. | ||
| * @param eStructuralFeatureName | ||
| * the feature name before migration. | ||
| * @return the new structural feature or null if not found. The attribute | ||
| * corresponding to given old name into given eClass. | ||
| */ | ||
| default EStructuralFeature getEStructuralFeature(EClass eClass, String eStructuralFeatureName) { | ||
| return eClass.getEStructuralFeature(eStructuralFeatureName); | ||
| } | ||
|
|
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| /** | ||
| * Called during the parsing of JsonResources (at loading time). If an | ||
| * EClassifier name has changed, then you should return the correct one. | ||
| * | ||
| * @param ePackage | ||
| * the package where looking for classifier. | ||
| * @param typeName | ||
| * the old classifier name before migration. | ||
| * @return the new classifier corresponding to the old given name into given | ||
| * ePackage or null if not found. | ||
| */ | ||
| default EClassifier getEClassifier(EPackage ePackage, String typeName) { | ||
| return ePackage.getEClassifier(typeName); | ||
| } | ||
|
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| /** | ||
| * Return the EPackage to use for the given namespace. | ||
| * | ||
| * @param nsURI | ||
| * the nsURI of the package we are looking for. | ||
| * @return an EPackage if some new mapping exists, null otherwise. | ||
| */ | ||
| default EPackage getPackage(String nsURI) { | ||
| return null; | ||
| } | ||
| } |
92 changes: 92 additions & 0 deletions
92
...rg/eclipse/sirius/web/application/editingcontext/migration/MigrationExtendedMetaData.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2024 Obeo. | ||
| * This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v2.0 | ||
| * which accompanies this distribution, and is available at | ||
| * https://www.eclipse.org/legal/epl-2.0/ | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| * | ||
| * Contributors: | ||
| * Obeo - initial API and implementation | ||
| *******************************************************************************/ | ||
| package org.eclipse.sirius.web.application.editingcontext.migration; | ||
|
|
||
| import java.util.Comparator; | ||
| import java.util.List; | ||
| import java.util.Objects; | ||
|
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| import org.eclipse.emf.ecore.EClass; | ||
| import org.eclipse.emf.ecore.EClassifier; | ||
| import org.eclipse.emf.ecore.EPackage; | ||
| import org.eclipse.emf.ecore.EStructuralFeature; | ||
| import org.eclipse.emf.ecore.util.BasicExtendedMetaData; | ||
| import org.eclipse.sirius.components.emf.MigrationData; | ||
|
|
||
| /** | ||
| * Specialized BasicExtendedMetaData. | ||
| * | ||
| * @author mcharfadi | ||
| */ | ||
| public class MigrationExtendedMetaData extends BasicExtendedMetaData { | ||
| private final MigrationData documentMigrationData; | ||
|
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| private final List<IMigrationParticipant> migrationParticipants; | ||
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| public MigrationExtendedMetaData(List<IMigrationParticipant> migrationParticipants, MigrationData documentMigrationData) { | ||
| this.migrationParticipants = Objects.requireNonNull(migrationParticipants); | ||
| this.documentMigrationData = Objects.requireNonNull(documentMigrationData); | ||
| } | ||
|
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| private boolean isCandidateVersion(IMigrationParticipant migrationParticipant) { | ||
| return migrationParticipant.getVersion().compareTo(this.documentMigrationData.migrationVersion()) > 0; | ||
| } | ||
|
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| @Override | ||
| public EStructuralFeature getElement(EClass eClass, String namespace, String eStructuralFeatureName) { | ||
| EStructuralFeature structuralFeature = eClass.getEStructuralFeature(eStructuralFeatureName); | ||
| var migrationParticipantsCandidate = migrationParticipants.stream() | ||
| .filter(this::isCandidateVersion) | ||
| .sorted(Comparator.comparing(IMigrationParticipant::getVersion)) | ||
| .toList(); | ||
| for (IMigrationParticipant migrationParticipant : migrationParticipantsCandidate) { | ||
| EStructuralFeature newStructuralFeature = migrationParticipant.getEStructuralFeature(eClass, eStructuralFeatureName); | ||
| if (newStructuralFeature != null) { | ||
| structuralFeature = newStructuralFeature; | ||
| } | ||
| } | ||
| return structuralFeature; | ||
| } | ||
|
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| @Override | ||
| public EClassifier getType(EPackage ePackage, String typeName) { | ||
| EClassifier eClassifier = ePackage.getEClassifier(typeName); | ||
| var migrationParticipantsCandidate = migrationParticipants.stream() | ||
| .filter(this::isCandidateVersion) | ||
| .sorted(Comparator.comparing(IMigrationParticipant::getVersion)) | ||
| .toList(); | ||
| for (IMigrationParticipant migrationParticipant : migrationParticipantsCandidate) { | ||
| EClassifier newEClassifier = migrationParticipant.getEClassifier(ePackage, typeName); | ||
| if (newEClassifier != null) { | ||
| eClassifier = newEClassifier; | ||
| } | ||
| } | ||
| return eClassifier; | ||
| } | ||
|
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| @Override | ||
| public EPackage getPackage(String nsURI) { | ||
| EPackage ePackage = super.getPackage(nsURI); | ||
| var migrationParticipantsCandidate = migrationParticipants.stream() | ||
| .filter(this::isCandidateVersion) | ||
| .sorted(Comparator.comparing(IMigrationParticipant::getVersion)) | ||
| .toList(); | ||
| for (IMigrationParticipant migrationParticipant : migrationParticipantsCandidate) { | ||
| EPackage newEPackage = migrationParticipant.getPackage(nsURI); | ||
| if (newEPackage != null) { | ||
| ePackage = newEPackage; | ||
| } | ||
| } | ||
| return ePackage; | ||
| } | ||
| } |
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