/*
* Copyright 2003-2015 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.tempmodel;
import gnu.trove.THashMap;
import jetbrains.mps.extapi.model.SModelBase;
import jetbrains.mps.extapi.module.SModuleBase;
import jetbrains.mps.smodel.ModelDependencyUpdate;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.mps.openapi.model.EditableSModel;
import org.jetbrains.mps.openapi.model.SModel;
import org.jetbrains.mps.openapi.module.SRepository;
import java.util.Map;
/**
* This class is for creating temporary models.
* This is useful when one wants to write some code for further passing it to IDE instead of storing as source code.
* Temporary models should not be shown in project tree, find usages dialog, hierarchy view and all other views
* <p/>
* Temporary model is {@link org.jetbrains.mps.openapi.model.EditableSModel}, could be modified, and dispatches change
* notifications. It's not possible to save temporary model as its data source is void.
* For the time being, there's a hack that the model doesn't report its changed state {@link EditableSModel#isChanged()}.
*/
public class TemporaryModels {
private static TemporaryModels ourInstance = new TemporaryModels();
public static TemporaryModels getInstance() {
return ourInstance;
}
private TemporaryModels() {
}
//singleton part end
private Map<TempModel, TempModuleOptions> myCreatedModels = new THashMap<TempModel, TempModuleOptions>();
//todo convert possible parameter sets to "sensivity" enum: read-only (no read-events), read-only (with events), editable, editable with events, editable with undo tracked
public SModel create(boolean readOnly, @NotNull TempModuleOptions mp) {
return create(readOnly, true, mp);
}
public SModel create(boolean readOnly, boolean trackUndo, @NotNull TempModuleOptions mp) {
SModuleBase module = (SModuleBase) mp.createModule();
TempModel model = new TempModel(readOnly, trackUndo, module.getModuleReference());
myCreatedModels.put(model, mp);
module.registerModel(model);
return model;
}
//todo: this must be removed as soon as we have module API and can create a module that shows its model dependencies as its dependencies ("auto fixes" imports)
public void addMissingImports(SModel model) {
assert model instanceof TempModel : "TemporaryModels is asked to handle non-temporary model " + model.getName();
SRepository repo = model.getRepository();
new ModelDependencyUpdate(model).updateUsedLanguages().updateImportedModels(repo).updateModuleDependencies(repo);
}
public void dispose(SModel model) {
assert model instanceof TempModel : "TemporaryModels is asked to handle non-temporary model " + model.getModelName();
TempModuleOptions module = myCreatedModels.remove(model);
SModuleBase modelModule = (SModuleBase) model.getModule();
if (modelModule != null) {
modelModule.unregisterModel((SModelBase) model);
}
module.disposeModule();
}
public static boolean isTemporary(SModel model) {
return model instanceof TempModel;
}
}