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Bug: #3333 Signed-off-by: Michaël Charfadi <michael.charfadi@obeosoft.com>
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61 changes: 61 additions & 0 deletions
61
...s-components-emf/src/main/java/org/eclipse/sirius/components/emf/utils/MigrationData.java
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/******************************************************************************* | ||
* 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.utils; | ||
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/** | ||
* POJO for MigrationData. | ||
* | ||
* @author mcharfadi | ||
*/ | ||
public class MigrationData { | ||
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public static final String JSON_OBJECT_ROOT = "migration"; | ||
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private String lastMigrationPerformed; | ||
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private String migrationVersion; | ||
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public MigrationData() { | ||
this.lastMigrationPerformed = "none"; | ||
this.migrationVersion = "0"; | ||
} | ||
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public MigrationData(String lastMigrationPerformed, String migrationVersion) { | ||
this.lastMigrationPerformed = lastMigrationPerformed; | ||
this.migrationVersion = migrationVersion; | ||
} | ||
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public String getLastMigrationPerformed() { | ||
return lastMigrationPerformed; | ||
} | ||
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public void setLastMigrationPerformed(String lastMigrationPerformed) { | ||
this.lastMigrationPerformed = lastMigrationPerformed; | ||
} | ||
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public String getMigrationVersion() { | ||
return migrationVersion; | ||
} | ||
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public void setMigrationVersion(String migrationVersion) { | ||
this.migrationVersion = migrationVersion; | ||
} | ||
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@Override | ||
public String toString() { | ||
return "MigrationData{" + | ||
"lastMigrationPerformed='" + lastMigrationPerformed + '\'' + | ||
", migrationVersion='" + migrationVersion + '\'' + | ||
'}'; | ||
} | ||
} |
129 changes: 129 additions & 0 deletions
129
...va/org/eclipse/sirius/web/application/editingcontext/migration/IMigrationParticipant.java
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/******************************************************************************* | ||
* 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 XMIResources (at loading time). If a feature value has changed since a previous | ||
* version, use this method to return the correct expected value. The feature value do not have to be set here, | ||
* that will be done by JsonHelper.setValue(). | ||
* | ||
* @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 oldAttributeName | ||
* 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 getElement(EClass eClass, String oldAttributeName) { | ||
return eClass.getEStructuralFeature(oldAttributeName); | ||
} | ||
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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 getType(EPackage ePackage, String typeName) { | ||
return ePackage.getEClassifier(typeName); | ||
} | ||
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/** | ||
* Return the EPackage to use for the given namespace. | ||
* | ||
* @param namespace | ||
* the nsURI of the package we are looking for. | ||
* @return an EPackage if some new mapping exists, null otherwise. | ||
*/ | ||
default EPackage getPackage(String namespace) { | ||
return null; | ||
} | ||
} |
88 changes: 88 additions & 0 deletions
88
...rg/eclipse/sirius/web/application/editingcontext/migration/MigrationExtendedMetaData.java
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/******************************************************************************* | ||
* 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 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.utils.MigrationData; | ||
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/** | ||
* Specialized BasicExtendedMetaData. | ||
* | ||
* @author mcharfadi | ||
*/ | ||
public class MigrationExtendedMetaData extends BasicExtendedMetaData { | ||
private final MigrationData documentMigrationData; | ||
private final List<IMigrationParticipant> migrationParticipants; | ||
public MigrationExtendedMetaData(List<IMigrationParticipant> migrationParticipants, MigrationData documentMigrationData) { | ||
this.migrationParticipants = Objects.requireNonNull(migrationParticipants); | ||
this.documentMigrationData = Objects.requireNonNull(documentMigrationData); | ||
} | ||
private boolean isCandidateVersion(IMigrationParticipant migrationParticipant) { | ||
return migrationParticipant.getVersion().compareTo(this.documentMigrationData.getMigrationVersion()) > 0; | ||
} | ||
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@Override | ||
public EStructuralFeature getElement(EClass eClass, String namespace, String name) { | ||
EStructuralFeature structuralFeature = eClass.getEStructuralFeature(name); | ||
var migrationParticipantsCandidate = migrationParticipants.stream() | ||
.filter(this::isCandidateVersion) | ||
.sorted(Comparator.comparing(IMigrationParticipant::getVersion)) | ||
.toList(); | ||
for (IMigrationParticipant migrationParticipant : migrationParticipantsCandidate) { | ||
EStructuralFeature newStructuralFeature = migrationParticipant.getElement(eClass, name); | ||
if (newStructuralFeature != null) { | ||
structuralFeature = newStructuralFeature; | ||
} | ||
} | ||
return structuralFeature; | ||
} | ||
@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.getType(ePackage, typeName); | ||
if (newEClassifier != null) { | ||
eClassifier = newEClassifier; | ||
} | ||
} | ||
return eClassifier; | ||
} | ||
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@Override | ||
public EPackage getPackage(String namespace) { | ||
EPackage ePackage = super.getPackage(namespace); | ||
var migrationParticipantsCandidate = migrationParticipants.stream() | ||
.filter(this::isCandidateVersion) | ||
.sorted(Comparator.comparing(IMigrationParticipant::getVersion)) | ||
.toList(); | ||
for (IMigrationParticipant migrationParticipant : migrationParticipantsCandidate) { | ||
EPackage newEPackage = migrationParticipant.getPackage(namespace); | ||
if (newEPackage != null) { | ||
ePackage = newEPackage; | ||
} | ||
} | ||
return ePackage; | ||
} | ||
} |
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