/*
* 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.workbench.choose;
import jetbrains.mps.smodel.ModelAccessHelper;
import jetbrains.mps.util.Computable;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.mps.openapi.model.SModel;
import org.jetbrains.mps.openapi.model.SModelReference;
import org.jetbrains.mps.openapi.module.SRepository;
import org.jetbrains.mps.openapi.module.SearchScope;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* Gives access to {@linkplain SearchScope scope's} models as iterable collection of {@link SModelReference},
* to use in {@link ChooseByNameData#setScope(Iterable, Iterable)}.
* @author Artem Tikhomirov
* @since 3.4
*/
public final class ModelScopeIterable implements Iterable<SModelReference> {
private final SearchScope myScope;
private final SRepository myRepo;
public ModelScopeIterable(@NotNull SearchScope scope, @NotNull SRepository repo) {
myScope = scope;
myRepo = repo;
}
@Override
public Iterator<SModelReference> iterator() {
List<SModelReference> refs = new ModelAccessHelper(myRepo).runReadAction(new Computable<List<SModelReference>>() {
@Override
public List<SModelReference> compute() {
ArrayList<SModelReference> rv = new ArrayList<SModelReference>(100); // if we got few models, it's unlikely we care to use choose by name functionality
for (SModel m : myScope.getModels()) {
rv.add(m.getReference());
}
return rv;
}
});
return refs.iterator();
}
}