/*
* Copyright 2003-2016 JetBrains s.r.o.
*
* 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 jetbrains.mps.smodel;
import jetbrains.mps.smodel.SModel.ImportElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.mps.openapi.model.SModelReference;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* The purpose of this class is to keep legacy code related to update of implicit imports.
* We keep it for compatibility with older persistence versions which used to rely on implicit imports being tracked and updated attribute of a model.
* With v9, we don't keep implicit imports and re-construct them before save as needed.
*/
public final class ImplicitImportsLegacyHolder {
private List<ImportElement> myImplicitImports = new ArrayList<ImportElement>();
@NotNull
private final SModel myModel;
/*package*/ ImplicitImportsLegacyHolder(@NotNull SModel model) {
myModel = model;
}
// create new implicit import list based on used models, explicit import and old implicit import list
public void calculateImplicitImports() {
// no-op - we don't save models in old persistence any more, no reason to bother recalculate implicit imports
}
public List<ImportElement> getAdditionalModelVersions() {
return Collections.unmodifiableList(myImplicitImports);
}
public void addAdditionalModelVersion(@NotNull SModelReference modelReference, int usedVersion) {
addAdditionalModelVersion(new ImportElement(modelReference, -1, usedVersion));
}
public void addAdditionalModelVersion(@NotNull ImportElement element) {
myImplicitImports.add(element);
}
@Nullable
public ImportElement find(SModelReference modelReference) {
for (ImportElement importElement : myImplicitImports) {
if (importElement.getModelReference().equals(modelReference)) {
return importElement;
}
}
return null;
}
}